Patent Publication Number: US-8540381-B2

Title: Systems and methods for receiving information associated with projecting

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application is related to and claims the benefit of the earliest available effective filing date(s) from the following listed application(s) (the “Related Applications”) (e.g., claims earliest available priority dates for other than provisional patent applications or claims benefits under 35 USC §119(e) for provisional patent applications, for any and all parent, grandparent, great-grandparent, etc. applications of the Related Application(s)). 
     RELATED APPLICATIONS 
     For purposes of the USPTO extra-statutory requirements, the present application constitutes a continuation-in-part of U.S. patent application Ser. No. 12/214,422, entitled SYSTEMS AND DEVICES, naming Edward K. Y. Jung, Eric C. Leuthardt, Royce A. Levien, Robert W. Lord, Mark A. Malamud, John D. Rinaldo, Jr., and Lowell L. Wood, Jr. as inventors, filed 17 Jun. 2008, which is currently co-pending, or is an application of which a currently co-pending application is entitled to the benefit of the filing date. 
     For purposes of the USPTO extra-statutory requirements, the present application constitutes a continuation-in-part of U.S. patent application Ser. No. 12/217,118, entitled MOTION RESPONSIVE DEVICES AND SYSTEMS, naming Edward K. Y. Jung, Eric C. Leuthardt, Royce A. Levien, Robert W. Lord, Mark A. Malamud, John D. Rinaldo, Jr., and Lowell L. Wood, Jr. as inventors, filed 30 Jun. 2008, which is currently co-pending, or is an application of which a currently co-pending application is entitled to the benefit of the filing date. 
     For purposes of the USPTO extra-statutory requirements, the present application constitutes a continuation-in-part of U.S. patent application Ser. No. 12/217,116, entitled SYSTEMS AND METHODS FOR PROJECTING, naming Edward K. Y. Jung, Eric C. Leuthardt, Royce A. Levien, Robert W. Lord, Mark A. Malamud, John D. Rinaldo, Jr., and Lowell L. Wood, Jr. as inventors, filed 30 Jun. 2008, which is currently co-pending, or is an application of which a currently co-pending application is entitled to the benefit of the filing date. 
     For purposes of the USPTO extra-statutory requirements, the present application constitutes a continuation-in-part of U.S. patent application Ser. No. 12/217,115, entitled SYSTEMS AND METHODS FOR TRANSMITTING INFORMATION ASSOCIATED WITH PROJECTING, naming Edward K. Y. Jung, Eric C. Leuthardt, Royce A. Levien, Robert W. Lord, Mark A. Malamud, John D. Rinaldo, Jr., and Lowell L. Wood, Jr. as inventors, filed 30 Jun. 2008, which is currently co-pending, or is an application of which a currently co-pending application is entitled to the benefit of the filing date. 
     For purposes of the USPTO extra-statutory requirements, the present application constitutes a continuation-in-part of U.S. patent application Ser. No. 12/217,135, entitled SYSTEMS AND METHODS FOR PROJECTING IN RESPONSE TO POSITION, naming Edward K. Y. Jung, Eric C. Leuthardt, Royce A. Levien, Robert W. Lord, Mark A. Malamud, John D. Rinaldo, Jr., and Lowell L. Wood, Jr. as inventors, filed 30 Jun. 2008, which is currently co-pending, or is an application of which a currently co-pending application is entitled to the benefit of the filing date. 
     For purposes of the USPTO extra-statutory requirements, the present application constitutes a continuation-in-part of U.S. patent application Ser. No. 12/217,117, entitled SYSTEMS AND METHODS FOR PROJECTING IN RESPONSE TO CONFORMATION, naming Edward K. Y. Jung, Eric C. Leuthardt, Royce A. Levien, Robert W. Lord, Mark A. Malamud, John D. Rinaldo, Jr., and Lowell L. Wood, Jr. as inventors, filed 30 Jun. 2008, which is currently co-pending, or is an application of which a currently co-pending application is entitled to the benefit of the filing date. 
     The United States Patent Office (USPTO) has published a notice to the effect that the USPTO&#39;s computer programs require that patent applicants reference both a serial number and indicate whether an application is a continuation or continuation-in-part. Stephen G. Kunin, Benefit of Prior-Filed Application, USPTO Official Gazette Mar. 18, 2003, available at http://www.uspto.gov/web/offices/com/sol/og/2003/week11/patbene.htm. The present Applicant Entity (hereinafter “Applicant”) has provided above a specific reference to the application(s) from which priority is being claimed as recited by statute. Applicant understands that the statute is unambiguous in its specific reference language and does not require either a serial number or any characterization, such as “continuation” or “continuation-in-part,” for claiming priority to U.S. patent applications. Notwithstanding the foregoing, Applicant understands that the USPTO&#39;s computer programs have certain data entry requirements, and hence Applicant is designating the present application as a continuation-in-part of its parent applications as set forth above, but expressly points out that such designations are not to be construed in any way as any type of commentary and/or admission as to whether or not the present application contains any new matter in addition to the matter of its parent application(s). 
     All subject matter of the Related Applications and of any and all parent, grandparent, great-grandparent, etc. applications of the Related Applications is incorporated herein by reference to the extent such subject matter is not inconsistent herewith. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to systems and methods that are related to transmitting and receiving information associated with projection. 
     SUMMARY 
     In one aspect, a method includes but is not limited to obtaining information associated with one or more changes in one or more features of one or more projection surfaces and transmitting one or more signals that include the information associated with one or more changes in one or more features of one or more projection surfaces. The method may optionally include coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. The method may optionally include transmitting one or more signals that include information associated with the coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In addition to the foregoing, other aspects are described in the claims, drawings, and text forming a part of the present disclosure. 
     In one aspect, a method includes but is not limited to receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces and projecting in response to the receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. The method may optionally include receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. The method may optionally include projecting in response to the receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In addition to the foregoing, other aspects are described in the claims, drawings, and text forming a part of the present disclosure. 
     In one aspect, a system includes but is not limited to circuitry for obtaining information associated with one or more changes in one or more features of one or more projection surfaces and circuitry for transmitting one or more signals that include the information associated with one or more changes in one or more features of one or more projection surfaces. The system may optionally include circuitry for coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. The system may optionally include circuitry for transmitting one or more signals in response to the circuitry for coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In addition to the foregoing, other system aspects are described in the claims, drawings, and text forming a part of the present disclosure. 
     In one aspect, a system includes but is not limited to circuitry for receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces and circuitry for projecting that is responsive to the circuitry for receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. The system may optionally include circuitry for receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. The system may optionally include circuitry for projecting that is responsive to the circuitry for receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In addition to the foregoing, other system aspects are described in the claims, drawings, and text forming a part of the present disclosure. 
     In one aspect, a system includes but is not limited to means for obtaining information associated with one or more changes in one or more features of one or more projection surfaces and means for transmitting one or more signals that include the information associated with one or more changes in one or more features of one or more projection surfaces. The system may optionally include means for coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. The system may optionally include means for transmitting one or more signals that include information associated with the coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In addition to the foregoing, other system aspects are described in the claims, drawings, and text forming a part of the present disclosure. 
     In one aspect, a system includes but is not limited to means for receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces and means for projecting that are responsive to the means for receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. The system may optionally include means for receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. The system may optionally include means for projecting in response to the means for receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In addition to the foregoing, other system aspects are described in the claims, drawings, and text forming a part of the present disclosure. 
     In one aspect, a system includes but is not limited to a signal-bearing medium bearing one or more instructions for obtaining information associated with one or more changes in one or more features of one or more projection surfaces and one or more instructions for transmitting one or more signals that include the information associated with one or more changes in one or more features of one or more projection surfaces. The system may optionally include one or more instructions for coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. The system may optionally include one or more instructions for transmitting one or more signals that include information associated with the coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In addition to the foregoing, other system aspects are described in the claims, drawings, and text forming a part of the present disclosure. 
     In one aspect, a system includes but is not limited to a signal-bearing medium bearing one or more instructions for receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces and one or more instructions for projecting in response to receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. The system may optionally include one or more instructions for receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. The system may optionally include one or more instructions for projecting in response to receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In addition to the foregoing, other system aspects are described in the claims, drawings, and text forming a part of the present disclosure. 
     In one or more various aspects, means include but are not limited to circuitry and/or programming for effecting the herein referenced functional aspects; the circuitry and/or programming can be virtually any combination of hardware, software, and/or firmware configured to effect the herein referenced functional aspects depending upon the design choices of the system designer. In addition to the foregoing, other system aspects means are described in the claims, drawings, and/or text forming a part of the present disclosure. 
     In one or more various aspects, related systems include but are not limited to circuitry and/or programming for effecting the herein-referenced method aspects; the circuitry and/or programming can be virtually any combination of hardware, software, and/or firmware configured to effect the herein referenced method aspects depending upon the design choices of the system designer. In addition to the foregoing, other system aspects are described in the claims, drawings, and/or text forming a part of the present application. 
     The foregoing is a summary and thus may contain simplifications, generalizations, inclusions, and/or omissions of detail; consequently, those skilled in the art will appreciate that the summary is illustrative only and is NOT intended to be in any way limiting. Other aspects, features, and advantages of the devices and/or processes and/or other subject matter described herein will become apparent in the teachings set forth herein. 
    
    
     
       BRIEF DESCRIPTION OF THE FIGURES 
         FIG. 1  illustrates an example system  100  in which embodiments may be implemented. 
         FIG. 1A  illustrates embodiments of components shown in  FIG. 1 . 
         FIG. 1B  illustrates embodiments of components shown in  FIG. 1 . 
         FIG. 1C  illustrates embodiments of components shown in  FIG. 1 . 
         FIG. 2  illustrates an operational flow  200  representing example operations related to obtaining information associated with one or more changes in one or more features of one or more projection surfaces and transmitting one or more signals that include the information associated with one or more changes in one or more features of one or more projection surfaces. 
         FIG. 3  illustrates alternate embodiments of the example operational flow of  FIG. 2 . 
         FIG. 4  illustrates alternate embodiments of the example operational flow of  FIG. 2 . 
         FIG. 5  illustrates alternate embodiments of the example operational flow of  FIG. 2 . 
         FIG. 6  illustrates alternate embodiments of the example operational flow of  FIG. 2 . 
         FIG. 7  illustrates alternate embodiments of the example operational flow of  FIG. 2 . 
         FIG. 8  illustrates alternate embodiments of the example operational flow of  FIG. 2 . 
         FIG. 9  illustrates alternate embodiments of the example operational flow of  FIG. 2 . 
         FIG. 10  illustrates alternate embodiments of the example operational flow of  FIG. 2 . 
         FIG. 11  illustrates an operational flow  1100  representing example operations related to obtaining information associated with one or more changes in one or more features of one or more projection surfaces, transmitting one or more signals that include the information associated with one or more changes in one or more features of one or more projection surfaces, and coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. 
         FIG. 12  illustrates alternate embodiments of the example operational flow of  FIG. 11 . 
         FIG. 13  illustrates alternate embodiments of the example operational flow of  FIG. 11 . 
         FIG. 14  illustrates alternate embodiments of the example operational flow of  FIG. 11 . 
         FIG. 15  illustrates an operational flow  1500  representing example operations related to obtaining information associated with one or more changes in one or more features of one or more projection surfaces, transmitting one or more signals that include the information associated with one or more changes in one or more features of one or more projection surfaces, coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands, and transmitting one or more signals that include information associated with the coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. 
         FIG. 16  illustrates alternate embodiments of the example operational flow of  FIG. 15 . 
         FIG. 17  illustrates alternate embodiments of the example operational flow of  FIG. 15 . 
         FIG. 18  illustrates alternate embodiments of the example operational flow of  FIG. 15 . 
         FIG. 19  illustrates an operational flow  1900  representing example operations related to receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces and projecting in response to the receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. 
         FIG. 20  illustrates alternate embodiments of the example operational flow of  FIG. 19 . 
         FIG. 21  illustrates alternate embodiments of the example operational flow of  FIG. 19 . 
         FIG. 22  illustrates alternate embodiments of the example operational flow of  FIG. 19 . 
         FIG. 23  illustrates alternate embodiments of the example operational flow of  FIG. 19 . 
         FIG. 24  illustrates alternate embodiments of the example operational flow of  FIG. 19 . 
         FIG. 25  illustrates alternate embodiments of the example operational flow of  FIG. 19 . 
         FIG. 26  illustrates alternate embodiments of the example operational flow of  FIG. 19 . 
         FIG. 27  illustrates alternate embodiments of the example operational flow of  FIG. 19 . 
         FIG. 28  illustrates alternate embodiments of the example operational flow of  FIG. 19 . 
         FIG. 29  illustrates alternate embodiments of the example operational flow of  FIG. 19 . 
         FIG. 30  illustrates alternate embodiments of the example operational flow of  FIG. 19 . 
         FIG. 31  illustrates an operational flow  3100  representing example operations related to receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces, projecting in response to the receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces, and receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. 
         FIG. 32  illustrates alternate embodiments of the example operational flow of  FIG. 31 . 
         FIG. 33  illustrates alternate embodiments of the example operational flow of  FIG. 31 . 
         FIG. 34  illustrates alternate embodiments of the example operational flow of  FIG. 31 . 
         FIG. 35  illustrates an operational flow  3500  representing example operations related to receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces, projecting in response to the receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces, receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands, and projecting in response to the receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. 
         FIG. 36  illustrates alternate embodiments of the example operational flow of  FIG. 35 . 
         FIG. 37  illustrates alternate embodiments of the example operational flow of  FIG. 35 . 
         FIG. 38  illustrates alternate embodiments of the example operational flow of  FIG. 35 . 
         FIG. 39  illustrates a partial view of a system  3900  that includes a computer program for executing a computer process on a computing device. 
         FIG. 40  illustrates a partial view of a system  4000  that includes a computer program for executing a computer process on a computing device. 
         FIG. 41  illustrates a partial view of a system  4100  that includes a computer program for executing a computer process on a computing device. 
         FIG. 42  illustrates a partial view of a system  4200  that includes a computer program for executing a computer process on a computing device. 
         FIG. 43  illustrates a partial view of a system  4300  that includes a computer program for executing a computer process on a computing device. 
         FIG. 44  illustrates a partial view of a system  4400  that includes a computer program for executing a computer process on a computing device. 
     
    
    
     DETAILED DESCRIPTION 
     In the following detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, similar symbols typically identify similar components, unless context dictates otherwise. The illustrative embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here. 
     While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims. 
       FIG. 1  illustrates an example system  100  in which embodiments may be implemented. In some embodiments, system  100  may include one or more sensor units  200 . In some embodiments, system  100  may include one or more projector units  700 . In some embodiments, system  100  may include one or more sensors  260 . In some embodiments, system  100  may include one or more sensor interface modules  240 . In some embodiments, system  100  may include one or more user interfaces  300 . In some embodiments, system  100  may include one or more signals  400 . In some embodiments, system  100  may include one or more projection surfaces  500 . In some embodiments, system  100  may include one or more projector units  700 . In some embodiments, system  100  may include one or more motion response modules  720 . In some embodiments, system  100  may include one or more projector control units  740 . In some embodiments, system  100  may include one or more projectors  760 . In some embodiments, system  100  may include one or more projector interface modules  780 . In some embodiments, system  100  may include one or more sensor associated devices  800 . In some embodiments, system  100  may include one or more projector associated devices  900 . In some embodiments, system  100  may include two or more projectors  760  that project in a coordinated manner. For example, in some embodiments, two or more projectors  760  may project the same content such that the projections are registered together to create a continuous projection. 
     Sensor Unit 
     A system may include one or more sensor units  200 . A sensor unit  200  may be configured to detect one or more changes in one or more features associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to detect one or more changes in position of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to detect one or more changes in position of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to detect one or more changes in motion associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to detect one or more changes in conformation associated with one or more projection surfaces  500 . Accordingly, numerous features associated with one or more projection surfaces  500  may be detected by one or more sensor units  200 . A sensor unit  200  may be configured to have numerous conformations. In some embodiments, a sensor unit  200  may be configured as a hand held device. In some embodiments, a sensor unit  200  may be configured as a mountable device. For example, in some embodiments, a sensor unit  200  may be configured as a sensor unit  200  that may be mounted to a ceiling. In some embodiments, a sensor unit  200  may be mounted and/or positioned onto a desk. In some embodiments, a sensor unit  200  may be mounted to, or otherwise contained within, another system such as a desktop or mobile computer, PDA, cellular phone, camera, video player, or other system. In some embodiments, a sensor unit  220  may include one or more housings. In some embodiments, a sensor unit  200  may be configured to receive one or more signals  400 . In some embodiments, a sensor unit  200  may be configured to transmit one or more signals  400 . Accordingly, a sensor unit  200  may be configured in numerous ways. 
     Sensor Control Unit 
     System  100  may include one or more sensor control units  220 . In some embodiments, one or more sensor control units  220  may be operably associated with one or more sensor units  200 . In some embodiments, one or more sensor control units  220  may be operably associated with one or more sensors  260 . In some embodiments, one or more sensor control units  220  may be operably associated with one or more sensor interface modules  240 . In some embodiments, one or more sensor control units  220  may be operably associated with one or more sensor processors  222 . In some embodiments, one or more sensor control units  220  may be operably associated with sensor processor memory  224 . In some embodiments, one or more sensor control units  220  may be operably associated with one or more sensor processor instructions  226 . In some embodiments, one or more sensor control units  220  may be operably associated with sensor memory  228 . In some embodiments, one or more sensor control units  220  may be operably associated with one or more sensor instructions  230 . In some embodiments, one or more sensor control units  220  may be operably associated with one or more sensor motion patterns  232 . In some embodiments, one or more sensor control units  220  may facilitate the transmission of one or more signals  400  that include information associated with one or more changes in sensor response. For example, in some embodiments, one or more signals  400  that include information associated with a change in one or more features associated with one or more projection surfaces  500  may be transmitted. The one or more signals  400  may be received by one or more projector units  700  and used to facilitate projection by one or more projectors  760  in response to the one or more signals  400 . In some embodiments, one or more sensor control units  220  may use prior sensor response, user input, or other stimulus, to activate or deactivate one or more sensors  260  or other subordinate features contained within one or more sensor control units  220 . 
     Sensor 
     System  100  may include one or more sensors  260 . In some embodiments, one or more sensors  260  may be operably associated with one or more sensor units  200 . In some embodiments, one or more sensors  260  may be operably associated with one or more sensor control units  220 . In some embodiments, one or more sensors  260  may be operably associated with one or more sensor interface modules  240 . A sensor unit  200  may include many types of sensors  260  alone or in combination. Examples of sensors  260  include, but are not limited to, cameras  276 , light sensors  268 , range sensors  275 , contact sensors  267 , entity sensors  271 , infrared sensors  272 , yaw rate sensors  273 , ultraviolet sensors  274 , inertial sensors  265 , ultrasonic sensors  266 , imaging sensors  269 , pressure sensors  270 , motion sensors  261 , gyroscopic sensors  262 , acoustic sensors  263 , biometric sensors  264 , and the like. In some embodiments, one or more sensors  260  may be configured to detect motion. In some embodiments, one or more sensors  260  may be configured to detect motion that is imparted to one or more projection surfaces  500 . 
     Sensor Interface Module 
     System  100  may include one or more sensor interface modules  240 . In some embodiments, one or more sensor interface modules  240  may be operably associated with one or more sensor units  200 . In some embodiments, one or more sensor interface modules  240  may be operably associated with one or more sensor control units  220 . In some embodiments, one or more sensor interface modules  240  may be operably associated with one or more sensors  260 . In some embodiments, one or more sensor interface modules  240  may be operably associated with one or more sensor associated devices  800 . In some embodiments, one or more sensor interface modules  240  may be operably associated with external memory. In some embodiments, one or more sensor interface modules  240  may be configured to communicate with one or more user interfaces  300 . A sensor interface module  240  may communicate with other components of system  100  through use of numerous communication formats and combinations of communications formats. Examples of such formats include, but are not limited to, VGA 241, USB 244, wireless USB 249, RS-232 242, infrared 245, Bluetooth 250, 802.11b/g/n 243, S-video 246, Ethernet 248, DVI-D 247, and the like. In some embodiments, a sensor interface module  240  may include one or more sensor transmitters  251 . In some embodiments, a sensor interface module  240  may include one or more sensor receivers  252 . 
     Projector Unit 
     A system may include one or more projector units  700 . In some embodiments, a projector unit  700  may include one or more motion response modules  720 . In some embodiments, a projector unit  700  may include one or more projector control units  740 . In some embodiments, a projector unit  700  may include one or more projectors  760 . In some embodiments, a projector unit  700  may include one or more projector interface modules  780 . Accordingly, in some embodiments, a projector unit  700  may include one or more projectors  760 . In some embodiments, a projector unit  700  may include one or more projectors  760  and one or more projector control units  740 . In some embodiments, a projector unit  700  may include one or more projectors  760 , one or more projector control units  740 , and one or more motion response modules  720 . In some embodiments, a projector unit  700  may include one or more projectors  760 , one or more projector control units  740 , one or more motion response modules  720 , and one or more projector interface modules  780 . In some embodiments, a projector unit  700  may include one or more housings. 
     A projector unit  700  may be configured to have numerous conformations. In some embodiments, a projector unit  700  may be configured to receive one or more signals  400 . In some embodiments, a projector unit  700  may be configured to transmit one or more signals  400 . In some embodiments, a projector unit  700  may be configured as a mountable projector unit  700 . For example, in some embodiments, a projector unit  700  may be configured for mounting to a ceiling. In some embodiments, a projector unit  700  may be configured as a ceiling mounted projector unit  700  that may be configured to project content onto one or more portions of one or more substantially vertical surfaces. In some embodiments, a projector unit  700  may be configured as a ceiling mounted projector unit  700  that may be configured to project content onto one or more portions of one or more substantially horizontal surfaces. In some embodiments, a projector unit  700  may be configured as a ceiling mounted projector unit  700  that may be configured to project content onto one or more portions of one or more substantially vertical surfaces and onto one or more portions of one or more substantially horizontal surfaces. In some embodiments, a projector unit  700  may be configured to project content onto one or more portions of one or more tabletops. For example, in some embodiments, a projector unit  700  may be mounted onto a wall and configured to project content onto one or more tabletops. In some embodiments, a projector unit  700  may be mounted and/or positioned onto a desk and configured to project content onto one or more desktops. In some embodiments, a projector unit  700  may be mounted to or otherwise contained within another system, such as a desktop or mobile computer, PDA, cellular phone, camera  276 , video player, or other system, for the display of content associated with that system. Accordingly, a projector unit  700  may be configured in numerous ways to project content onto numerous types of projection surfaces  500 . 
     In some embodiments, a projector unit  700  may be configured to project in response to motion imparted to the projector unit  700 . In some embodiments, a projector unit  700  may be configured to project content in manner that is dependent upon one or more substantially specific motions that are imparted to the projector unit  700 . For example, in some embodiments, a projector unit  700  may be configured to project content contained on pages of a book in a manner that is motion dependent. Accordingly, in some embodiments, a projector unit  700  may be configured to project content contained on the next page in a series upon rotation of the projector unit  700  in a clockwise direction. In some embodiments, a projector unit  700  may be configured to project content contained on the preceding page in a series upon rotation of the projector unit  700  in a counterclockwise direction. In some embodiments, a projector unit  700  may be configured to project content on the next page in a series upon being moved to the left from a starting position and then moved substantially back to the starting position. In some embodiments, the projector unit  700  may be configured to project content on the preceding page in a series upon being moved to the right from a starting position and then moved substantially back to the starting position. In some embodiments, a projector unit  700  may select content to be projected in response to motion imparted to the projector unit  700 . For example, in some embodiments, a projector unit  700  may be configured to project content associated with a newspaper when the projector unit  700  is positioned in a first orientation and be configured to project content associated with a news magazine when positioned in a second orientation. In some embodiments, a projector unit  700  may be configured to correlate substantially specific motions with projection commands to select content in a motion dependent manner. In some embodiments, a projector unit  700  may be configured to correlate substantially specific motions with projection commands to project content in a motion dependent manner. In some embodiments, a projector unit  700  may be configured to correlate substantially specific motions with projection commands to select and project content in a motion dependent manner. 
     In some embodiments, a projector unit  700  may be configured to project content in a manner that is dependent upon a person who is associated with the projector unit  700 . For example, in some embodiments, a projector unit  700  may be configured to project children&#39;s content if used by a child. In some embodiments, a projector unit  700  may be configured to project the statistics associated with various sports teams when associated with a first person and configured to project stock quotes when associated with a second person. Accordingly, a projector unit  700  may be configured to project content that is selected in accordance with specific persons or classes of persons. 
     Motion Response Module 
     In some embodiments, system  100  may include one or more motion response modules  720 . In some embodiments, one or more motion response modules  720  may be operably associated with one or more projector units  700 . In some embodiments, one or more motion response modules  720  may be operably associated with one or more projectors  760 . In some embodiments, one or more motion response modules  720  may be operably associated with one or more projector control units  740 . In some embodiments, one or more motion response modules  720  may be operably associated with one or more projector interface modules  780 . In some embodiments, one or more motion response modules  720  may include one or more response processors  721 . In some embodiments, one or more motion response modules  720  may include response processor memory  722 . In some embodiments, one or more motion response modules  720  may include one or more response processor instructions  723 . In some embodiments, one or more motion response modules  720  may include one or more motors  724 . In some embodiments, one or more motion response modules  720  may include response memory  725 . In some embodiments, one or more motion response modules  720  may include one or more response instructions  726 . In some embodiments, one or more motion response modules  720  may include one or more response motion patterns  727 . In some embodiments, one or more motion response modules  720  may include one or more actuators  728 . In some embodiments, a motion response module  720  may be configured to modulate output from a projector  760  in response to motion that is imparted to a projector unit  700 . For example, in some embodiments, a motion response module  720  may include one or more motors  724  that are operably coupled to one or more actuators  728  that control one or more lenses. Accordingly, in some embodiments, one or more motion response modules  720  may focus output from a projector  760  in response to motion imparted to a projection unit  700 . Motion response modules  720  may be configured in numerous conformations to modulate output from an operably associated projector  760 . 
     Projector Control Unit 
     System  100  may include one or more projector control units  740 . In some embodiments, one or more projector control units  740  may be operably associated with one or more projectors  760 . In some embodiments, one or more projector control units  740  may be operably associated with one or more motion response modules  720 . In some embodiments, one or more projector control units  740  may be operably associated with one or more projector interface modules  780 . In some embodiments, one or more projector control units  740  may be operably associated with one or more projectors  760  and one or more motion response modules  720 . In some embodiments, one or more projector control units  740  may be operably associated with one or more projectors  760 , one or more motion response modules  720 , and one or more projector control units  740 . In some embodiments, one or more projector control units  740  may be operably associated with one or more projectors  760 , one or more motion response modules  720 , one or more projector control units  740 , and one or more projector interface modules  780 . In some embodiments, a projector control unit  740  may be operably associated with one or more control processors  741 . In some embodiments, a projector control unit  740  may be operably associated with control processor memory  742 . In some embodiments, a projector control unit  740  may be operably associated with one or more control processor instructions  743 . In some embodiments, a projector control unit  740  may be operably associated with control memory  744 . In some embodiments, a projector control unit  740  may be operably associated with one or more control instructions  745 . In some embodiments, a projector control unit  740  may be operably associated with one or more control calibration images  746 . In some embodiments, a projector control unit  740  may be operably associated with one or more control motion patterns  747 . 
     In some embodiments, a projector control unit  740  may be configured to modulate output projected by one or more projectors  760 . In some embodiments, one or more projector control units  740  may be configured to select one or more wavelengths of light that will be projected by one or more projectors  760 . For example, in some embodiments, one or more projector control units  740  may select one or more wavelengths of ultraviolet light that will be projected by one or more projectors  760 . In some embodiments, one or more projector control units  740  may select one or more wavelengths of visible light that will be projected by one or more projectors  760 . In some embodiments, one or more projector control units  740  may select one or more wavelengths of infrared light that will be projected by one or more projectors  760 . Accordingly, in some embodiments, one or more projector control units  740  may select numerous wavelengths of light that will be projected by one or more projectors  760 . 
     In some embodiments, one or more projector control units  740  may select content that is to be projected by one or more projectors  760 . In some embodiments, one or more projector control units  740  may select content that is to be projected in response to one or more features associated with one or more projection surfaces  500 . For example, in some embodiments, one or more projector control units  740  may select content that is to be projected in response to motion. In some embodiments, one or more projector control units  740  may select content that is to be projected in response to motion associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may select content that is not to be projected by one or more projectors  760 . In some embodiments, one or more projector control units  740  may select content that is not to be projected in response to one or more features associated with one or more projection surfaces  500 . For example, in some embodiments, one or more projector control units  740  may select content that is not to be projected in response to motion. In some embodiments, one or more projector control units  740  may select content that is not to be projected in response to motion associated with one or more projection surfaces  500 . 
     In some embodiments, one or more projector control units  740  may modulate output that is projected by one or more projectors  760 . In some embodiments, one or more projector control units  740  may modulate the intensity of light that is projected by one or more projectors  760 . In some embodiments, one or more projector control units  740  may modulate the brightness of light that is projected by one or more projectors  760 . In some embodiments, one or more projector control units  740  may modulate the contrast of light that is projected by one or more projectors  760 . In some embodiments, one or more projector control units  740  may modulate the sharpness of light that is projected by one or more projectors  760 . 
     In some embodiments, one or more projector control units  740  may modulate the direction of output that is projected by one or more projectors  760 . In some embodiments, one or more projector control units  740  may direct output from one or more projectors  760  onto one or more moving projection surfaces  500 . In some embodiments, one or more projector control units  740  may direct output from one or more projectors  760  onto one or more stationary projection surfaces  500 . In some embodiments, one or more projector control units  740  may direct output from one or more projectors  760  onto one or more moving projection surfaces  500  and onto one or more stationary projection surfaces  500 . In some embodiments, one or more projector control units  740  may direct output from one or more projectors  760  onto multiple projection surfaces  500 . For example, in some embodiments, one or more projector control units  740  may direct output from one or more projectors  760  onto a first projection surface  500  and direct output from one or more projectors  760  onto a second projection surface  500 . 
     In some embodiments, one or more projector control units  740  may dynamically modulate output from one or more projectors  760 . For example, in some embodiments, one or more projectors  760  may be carried from room to room such that one or more projector control units  740  modulate output from the one or more projectors  760  in response to the available projection surface  500 . In some embodiments, one or more projector control units  740  may dynamically modulate output from one or more projectors  760  in an outdoor environment. For example, in some embodiments, one or more projectors  760  may be configured to project one or more images in response to changing terrain. 
     In some embodiments, one or more projector control units  740  may be configured to respond to one or more substantially defined motions. In some embodiments, a user  600  may program one or more projector control units  740  to correlate one or more substantially defined motions with one or more projection commands. For example, in some embodiments, a user  600  may program one or more projector control units  740  to correlate clockwise motion of a device with a command to advance a projected slide presentation by one slide. Accordingly, in some embodiments, a device may be configured to project in response to substantially defined motions that are programmed according to the preferences of an individual user  600 . 
     Projector 
     System  100  may include one or more projectors  760 . In some embodiments, a projector  760  may be operably associated with one or more projector control units  740 . In some embodiments, a projector  760  may be operably associated with one or more motion response modules  720 . In some embodiments, a projector  760  may be operably associated with one or more projector interface modules  780 . In some embodiments, a projector  760  may be operably associated with one or more projector processors  761 . In some embodiments, a projector  760  may be operably associated with projector processor memory  762 . In some embodiments, a projector  760  may be operably associated with one or more projector instructions  763 . In some embodiments, a projector  760  may be operably associated with projector memory  764 . In some embodiments, a projector  760  may be operably associated with one or more projector instructions. In some embodiments, a projector  760  may be operably associated with projector memory instructions  765 . In some embodiments, a projector  760  may be operably associated with projector calibration images  766 . In some embodiments, a projector  760  may be operably associated with one or more housings. In some embodiments, a projector  760  may be an image stabilized projector  760 . 
     System  100  may include numerous types of projectors  760 . In some embodiments, a projector  760  may include inertia and yaw rate sensors  273  that detect motion and provide for adjustment of projected content to compensate for the detected motion. In some embodiments, a projector  760  may include an optoelectronic inclination sensor and an optical position displacement sensor to provide for stabilized projection (e.g., U.S. Published Patent Application No. 2003/0038927). In some embodiments, a projector  760  may include an optoelectronic inclination sensor, an optical position sensitive detector, and a piezoelectric accelerometer that provide for stabilized projection (e.g., U.S. Published Patent Application No. 2003/0038928). Image stabilized projectors  760  have been described (e.g., U.S. Pat. No. 7,284,866; U.S. Published Patent Application Nos. 20050280628; 20060103811, and 2006/0187421). In some embodiments, one or more projectors  760  may be modified to become image stabilized projectors  760 . Examples of such projectors  760  have been described (e.g., U.S. Pat. Nos. 6,002,505; 6,764,185; 6,811,264; 7,036,936; 6,626,543; 7,134,078; 7,355,584; U.S. Published Patent Application No. 2007/0109509). 
     Projectors  760  may be configured to project numerous wavelengths of light. In some embodiments, a projector  760  may be configured to project ultraviolet light. In some embodiments, a projector  760  may be configured to project visible light. In some embodiments, a projector  760  may be configured to project infrared light. In some embodiments, a projector  760  may be configured to project numerous combinations of light. For example, in some embodiments, a projector  760  may project one or more infrared calibration images and one or more visible images. 
     Projector Interface Module 
     System  100  may include one or more projector interface modules  780 . In some embodiments, one or more projector interface modules  780  may be operably associated with one or more projector units  700 . In some embodiments, one or more projector interface modules  780  may be operably associated with one or more projectors  760 . In some embodiments, one or more projector interface modules  780  may be operably associated with one or more projector control units  740 . In some embodiments, one or more projector interface modules  780  may be operably associated with one or more motion response modules  720 . In some embodiments, one or more projector interface modules  780  may be operably associated with one or more projector associated devices  900 . A projector interface module  780  may communicate with other components of system  100  through use of numerous communication formats and combinations of communications formats. Examples of such formats include, but are not limited to, VGA 781, USB 784, wireless USB 789, RS-232 782, infrared 785, Bluetooth 790, 802.11b/g/n 783, S-video 786, Ethernet 788, DVI-D 787, and the like. In some embodiments, a projector interface module  780  may include one or more projector transmitters  791 . In some embodiments, a projector interface module  780  may include one or more projector receivers  792 . 
     User Interface 
     System  100  may include one or more user interfaces  300 . In some embodiments, system  100  may include one or more user interfaces  300  that are configured to facilitate user interaction with one or more projector units  700 . In some embodiments, system  100  may include one or more user interfaces  300  that are configured as gestural user interfaces  300 . For example, in some embodiments, a projector unit  700  may project content in response to substantially specific motion that is imparted to the projector unit  700 . For example, in some embodiments, a user  600  may rotate a projector unit  700  in a clockwise direction to advance the projection of a slide presentation by one frame. In some embodiments, one or more projector units  700  may be configured to respond to voice commands or other auditory signals. In some embodiments, a projector unit  700  may include one or more user interfaces  300  that are configured as control features on the projector unit  700 . Examples of such control features include, but are not limited to, buttons, switches, track balls, and the like. In some embodiments, system  100  may include one or more user interfaces  300  that are configured to facilitate user interaction with one or more sensor units  200 . In some embodiments, one or more user interfaces  300  may be used to instruct one or more sensor units  200  to monitor one or more projection surfaces  500 . In some embodiments, a user interface  300  may include one or more interface receivers  302 . In some embodiments, a user interface  300  may include one or more interface transmitters  304 . Accordingly, in some embodiments, a user interface  300  may be configured to transmit one or more signals  400 . In some embodiments, a user interface  300  may be configured to receive one or more signals  400 . 
     Signal 
     Numerous types of signals  400  may be used in association with system  100 . Examples of such signals  400  include, but are not limited to, analog signals  400 , digital signals  400 , acoustic signals  400 , optical signals  400 , radio signals  400 , wireless signals  400 , hardwired signals  400 , infrared signals  400 , ultrasonic signals  400 , and the like. In some embodiments, one or more signals  400  may not be encrypted. In some embodiments, one or more signals  400  may be encrypted. In some embodiments, one or more signals  400  may be sent through use of a secure mode of transmission. In some embodiments, one or more signals  400  may be coded for receipt by a specific recipient. In some embodiments, such code may include anonymous code that is specific for the recipient. Accordingly, information included within one or more signals  400  may be protected against being accessed by others who are not the intended recipient. In some embodiments, one or more signals may include information as one or more content packets  402 . 
     In some embodiments, one or more signals  400  may include processed information. In some embodiments, one or more signals  400  may include information that has been processed by one or more sensor processors  222 . For example, in some embodiments, a sensor processor  222  may receive input from one or more sensors  260  that is processed. In some embodiments, this processed information may then be included within a signal  400  that is transmitted. In some embodiments, one or more signals  400  may include processed information that contains information that has been retrieved from sensor processor memory  224 . In some embodiments, one or more signals  400  may include processed information that contains information that has been processed through use of sensor processor instructions  226 . Accordingly, in some embodiments, one or more signals may include numerous types of information that is processed. Examples of such processing may include, but are not limited to, sub-setting, generating projection commands, selecting content, selecting content for projection, selecting content that is not for projection, summarizing sensor data, transforming sensor data, supplementing sensor data, supplementing sensor data with data from external sources, and the like. 
     In some embodiments, one or more signals  400  may include information that has not been processed. In some embodiments, a sensor transmitter  251  may act as a conduit to transmit one or more signals  400  that include raw data. For example, in some embodiments, one or more sensor transmitters  251  may receive information from one or more sensors  260  and transmit one or more signals  400  that include the unprocessed information. Accordingly, in some embodiments, one or more signals may include unprocessed information. 
     Projection Surface 
     System  100  may include one or more projection surfaces  500 . In some embodiments, nearly any surface may be utilized as a projection surface  500 . In some embodiments, a projection surface  500  may be portable. In some embodiments, a projection surface  500  may be carried by an individual person. For example, in some embodiments, a projection surface  500  may be configured as a sheet of material, a tablet, two or more sheets of material that may be separated from each other, and the like. Accordingly, in some embodiments, a projection surface  500  may be configured as a sheet of material that a user  600  may unfold and place on a surface, such as a desk, wall, floor, ceiling, etc. 
     In some embodiments, a projection surface  500  may include one or more surface sensors  502  that are associated with the projection surface  500 . In some embodiments, a projection surface  500  may include one or more magnetic surface sensors  502 . For example, in some embodiments, a projection surface  500  may include magnetic surface sensors  502  that are configured to detect magnetic ink that is applied to the projection surface  500 . In some embodiments, a projection surface  500  may include one or more pressure surface sensors  502 . For example, in some embodiments, a projection surface  500  may include pressure surface sensors  502  that are configured to detect pressure that is applied to the projection surface  500  (e.g., contact of a stylus with the projection surface  500 , contact of a pen with the projection surface  500 , contact of a pencil with the projection surface  500 , etc.). In some embodiments, a projection surface  500  may include one or more motion surface sensors  502 . For example, in some embodiments, a projection surface  500  may include motion surface sensors  502  that are configured to detect movement associated with the projection surface  500 . In some embodiments, a projection surface  500  may include one or more strain surface sensors  502 . For example, in some embodiments, a projection surface  500  may include strain surface sensors  502  that are configured to detect changes in conformation associated with the projection surface  500 . In some embodiments, a projection surface  500  may include one or more positional surface sensors  502  (e.g., global positioning surface sensors  502 ). For example, in some embodiments, a projection surface  500  may include positional surface sensors  502  that are configured to detect changes in position associated with the projection surface  500 . 
     A projection surface  500  may be constructed from numerous types of materials and combinations of materials. Examples of such materials include, but are not limited to, cloth, plastic, metal, ceramics, paper, wood, leather, glass, and the like. In some embodiments, one or more projection surfaces  500  may exhibit electrochromic properties. In some embodiments, one or more projection surfaces  500  may be coated. For example, in some embodiments, a projection surface  500  may be coated with paint. In some embodiments, a projection surface  500  may include one or more materials that alter light. For example, in some embodiments, a projection surface  500  may convert light (e.g., up-convert light, down-convert light). 
     In some embodiments, a projection surface  500  may be associated with one or more fiducials. For example, in some embodiments, one or more fluorescent marks may be placed on a projection surface  500 . In some embodiments, one or more phosphorescent marks may be placed on a projection surface  500 . In some embodiments, one or more magnetic materials may be placed on a projection surface  500 . In some embodiments, fiducials may be placed on a projection surface  500  in numerous configurations. For example, in some embodiments, fiducials may be positioned in association with a projection surface  500  such that they form a pattern. In some embodiments, a projection surface  500  may include one or more calibration images. 
     In some embodiments, a projection surface  500  may include one or more surface transmitters  504 . Accordingly, in some embodiments, a projection surface  500  may be configured to transmit one or more signals  400 . Such signals  400  may include numerous types of information. Examples of such information may include, but are not limited to, information associated with: one or more positions of one or more projection surfaces  500 , one or more conformations of one or more projection surfaces  500 , one or more changes in the position of one or more projection surfaces  500 , one or more changes in the conformation of one or more projection surfaces  500 , one or more motions associated with one or more projection surfaces  500 , one or more changes in the motion of one or more projection surfaces  500 , and the like. 
     In some embodiments, a projection surface  500  may include one or more surface receivers  506 . Accordingly, in some embodiments, a projection surface  500  may be configured to receive one or more signals  400 . For example, in some embodiments, one or more surface receivers  506  may receive one or more signals  400  that are transmitted by one or more projector transmitters  791 . In some embodiments, one or more surface receivers  506  may receive one or more signals  400  that are transmitted by one or more sensor transmitters  251 . 
     In some embodiments, a projection surface  500  may include one or more surface processors  508 . Accordingly, in some embodiments, a surface processor  508  may be configured to process information received from one or more surface sensors  502 . 
     In some embodiments, a projection surface  500  may include surface memory  510 . In some embodiments, surface memory  510  may include one or more lookup tables that include correlation information associated with the position of one or more fiducials associated with a projection surface  500  and one or more conformations of the projection surface  500 . In some embodiments, surface memory  510  may include surface instructions  512 . In some embodiments, surface instructions  512  may include instructions for a projection surface  500  to transmit one or more signals  400  that indicate that a projection surface  500  has undergone a change in conformation. In some embodiments, surface instructions  512  may include instructions for a projection surface  500  to transmit one or more signals  400  that indicate that a projection surface  500  has undergone a change in position. In some embodiments, surface instructions  512  may include instructions for a projection surface  500  to transmit one or more signals  400  that indicate that a projection surface  500  has undergone a change in motion. 
     In some embodiments, a projection surface  500  may be configured to include one or more recording attributes. For example, in some embodiments, a projection surface  500  may be configured to communicate with other devices. In some embodiments, a projection surface  500  may be configured to communicate with one or more printers. Accordingly, in some embodiments, a projection surface  500  may be configured to facilitate printing of content that is projected onto the projection surface  500 . In some embodiments, a projection surface  500  may be configured to communicate with external memory. Accordingly, in some embodiments, a projection surface  500  may be configured to facilitate capture and storage of content that is projected onto the projection surface  500  into memory. In some embodiments, a projection surface  500  may be configured to communicate with one or more cellular networks. Accordingly, in some embodiments, a projection surface  500  may be configured to facilitate transmission of content that is projected onto the projection surface  500  over one or more cellular networks. In some embodiments, a projection surface  500  may be configured to communicate with the internet. Accordingly, in some embodiments, a projection surface  500  may be configured to facilitate transmission of content that is projected onto the projection surface  500  over the internet. 
     Sensor Associated Device 
     System  100  may include one or more sensor associated devices  800 . Examples of such sensor associated devices  800  include, but are not limited to, projectors  760 , recording devices, image acquiring surfaces, printers, computer networks, the internet, wireless devices (e.g., personal digital assistant, cellular telephones, telephones, television transmissions, etc.), memory, and the like. Examples of such memory include, but are not limited to, USB flash drives, memory cards, external hard drives, networked storage, and the like. In some embodiments, sensor data, operational parameters, usage information, or other device or subsystem information can be stored on such memory. 
     Projector Associated Device 
     System  100  may include one or more projector associated devices  900 . Examples of such projector associated devices  900  include, but are not limited to, projectors  760 , recording devices, image acquiring surfaces, printers, computer networks, the internet, wireless devices (e.g., personal digital assistant, cellular telephones, telephones, television transmissions, etc.), memory, and the like. Examples of such memory include, but are not limited to, USB flash drives, memory cards, external hard drives, networked storage, and the like. In some embodiments, projection content may be retrieved from memory. In some embodiments, projector data, operational parameters, usage information, or other device or subsystem information can be stored on such memory. 
     User 
     System  100  may be operated by one or more users  600 . In some embodiments, a user  600  may be human. In some embodiments, a user  600  may be a non-human user  600 . For example, in some embodiments, a user  600  may be a computer, a robot, and the like. In some embodiments, a user  600  may be proximate to system  100 . In some embodiments, a user  600  may be remote from system  100 . 
     Following are a series of flowcharts depicting implementations. For ease of understanding, the flowcharts are organized such that the initial flowcharts present implementations via an example implementation and thereafter the following flowcharts present alternate implementations and/or expansions of the initial flowchart(s) as either sub-component operations or additional component operations building on one or more earlier-presented flowcharts. Those having skill in the art will appreciate that the style of presentation utilized herein (e.g., beginning with a presentation of a flowchart(s) presenting an example implementation and thereafter providing additions to and/or further details in subsequent flowcharts) generally allows for a rapid and easy understanding of the various process implementations. In addition, those skilled in the art will further appreciate that the style of presentation used herein also lends itself well to modular and/or object-oriented program design paradigms. 
     In  FIG. 2  and in following figures that include various examples of operations used during performance of the method, discussion and explanation may be provided with respect to any one or combination of the above-described examples of  FIG. 1 , and/or with respect to other examples and contexts. However, it should be understood that the operations may be executed in a number of other environments and contexts, and/or modified versions of  FIG. 1 . Also, although the various operations are presented in the sequence(s) illustrated, it should be understood that the various operations may be performed in other orders than those which are illustrated, or may be performed concurrently. 
     After a start operation, the operational flow  200  includes an obtaining operation  210  involving obtaining information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more features of one or more projection surfaces  500  directly. For example, in some embodiments, one or more sensor units  200  may obtain information from one or more sensors  260 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more features of one or more projection surfaces  500  indirectly. For example, in some embodiments, one or more sensor units  200  may receive one or more signals  400  that are transmitted by one or more projection surfaces  500  that include information associated with one or more changes in one or more features of the one or more projection surfaces  500 . One or more sensor units  200  may obtain numerous types of information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in position associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in conformation associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in position and conformation associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more fiducials associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more marks associated with one or more projection surfaces  500 . 
     After a start operation, the operational flow  200  includes a transmitting operation  220  involving transmitting one or more signals that include the information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with one or more changes in one or more positions of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with one or more changes in one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with one or more changes in one or more positions and one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with adjusting projection output in response to one or more changes in one or more features of one or more projection surfaces  500 . For example, in some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with adjusting the intensity of light that is projected onto one or more projection surfaces  500  in response to one or more changes in one or more features of the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with adjusting the wavelengths of light that are projected onto one or more projection surfaces  500  in response to one or more changes in one or more features of the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with projecting content onto two or more separate projection surfaces  500  in response to one or more changes in one or more features of at least one of the two or more projection surfaces  500 . 
       FIG. 3  illustrates alternative embodiments of the example operational flow  200  of  FIG. 2 .  FIG. 3  illustrates example embodiments where the obtaining operation  210  may include at least one additional operation. Additional operations may include an operation  302 , operation  304 , operation  306 , operation  308 , and/or operation  310 . 
     At operation  302 , the obtaining operation  210  may include detecting one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more sensor units  200  may detect one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be operably associated with one or more sensors  260  that detect one or more changes in one or more features of one or more projection surfaces  500 . Numerous types of sensors  260  may be used to detect one or more changes in one or more features of one or more projection surfaces  500 . For example, in some embodiments, one or more light sensors  268  may be configured to detect light intensity associated with one or more projection surfaces  500 . In some embodiments, one or more light sensors  268  may be configured to detect reflectivity associated with one or more projection surfaces  500 . In some embodiments, one or more light sensors  268  may be configured to detect light absorbance associated with one or more projection surfaces  500 . In some embodiments, one or more light sensors  268  may be configured to detect light transmission associated with one or more projection surfaces  500 . In some embodiments, one or more motion sensors  261  may be configured to detect motion associated with one or more projection surfaces  500 . For example, in some embodiments, one or more motion sensors  261  may detect movement of one or more projection surfaces  500  from one area to another. In some embodiments, one or more motion sensors  261  may detect movement of one or more projection surfaces  500  to determine changes in conformation of the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in one or more features of one or more projection surfaces  500 . For example, in some embodiments, one or more cameras  276  may be configured to detect the position of one or more fiducials associated with one or more projection surfaces  500 . Accordingly, in some embodiments, one or more cameras  276  may be configured to detect one or more changes in position of one or more projection surfaces  500  through determining one or more changes in the position of one or more fiducials associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in conformation of one or more projection surfaces  500  through determining one or more changes in the position of one or more fiducials associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in position of one or more projection surfaces  500  through determining one or more changes in the position of one or more calibration images associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in conformation of one or more projection surfaces  500  through determining one or more changes in the position of one or more calibration images associated with the one or more projection surfaces  500 . In some embodiments, one or more calibration images may be associated with one or more projection surfaces  500 . For example, in some embodiments, one or more calibration images may be stamped onto one or more projection surfaces  500 . In some embodiments, one or more calibration images may be printed onto one or more projection surfaces  500 . In some embodiments, one or more calibration images may be projected onto one or more projection surfaces  500 . Accordingly, sensors  260  may be configured in numerous ways to facilitate detection of one or more changes in one or more features of one or more projection surfaces  500 . 
     At operation  304 , the obtaining operation  210  may include obtaining information associated with one or more changes in one or more features of one or more projection surfaces with one or more cameras. In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more features of one or more projection surfaces  500  with one or more cameras  276 . In some embodiments, one or more sensor units  200  may be configured to obtain information associated with one or more changes in one or more features of one or more projection surfaces  500  with one or more cameras  276 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in one or more features of one or more projection surfaces  500 . For example, in some embodiments, one or more cameras  276  may be configured to detect the position of one or more fiducials associated with one or more projection surfaces  500 . Accordingly, in some embodiments, one or more cameras  276  may be configured to detect one or more changes in position of one or more projection surfaces  500  through determining one or more changes in the position of one or more fiducials associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in conformation of one or more projection surfaces  500  through determining one or more changes in the position of one or more fiducials associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in position of one or more projection surfaces  500  through determining one or more changes in the position of one or more calibration images associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in conformation of one or more projection surfaces  500  through determining one or more changes in the position of one or more calibration images associated with the one or more projection surfaces  500 . In some embodiments, one or more calibration images may be associated with one or more projection surfaces  500 . For example, in some embodiments, one or more calibration images may be stamped onto one or more projection surfaces  500 . In some embodiments, one or more calibration images may be printed onto one or more projection surfaces  500 . In some embodiments, one or more calibration images may be projected onto one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to facilitate projection onto irregular surfaces (e.g., U.S. Pat. No. 6,811,264). 
     At operation  306 , the obtaining operation  210  may include obtaining information associated with one or more changes in reflectivity of the one or more projection surfaces. In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in reflectivity of the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to obtain information associated with one or more changes in reflectivity of the one or more projection surfaces  500 . For example, in some embodiments, one or more sensor units  200  may be configured to obtain information from one or more light sensors  268  that are configured to detect changes in the reflectivity of one or more projection surfaces  500 . In some embodiments, such changes in reflectivity may be correlated to one or more changes in conformation associated with one or more projection surfaces  500 . In some embodiments, such changes in reflectivity may be correlated to one or more changes in position associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to calibrate the reflectivity of one or more projection surfaces  500  at a starting position so that changes in reflectivity may be correlated with changes in position of the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to calibrate the reflectivity of one or more projection surfaces  500  at a starting conformation so that changes in reflectivity may be correlated with changes in conformation associated with the one or more projection surfaces  500 . In some embodiments, the reflectivity of one or more calibration images that are associated with one or more projection surfaces  500  may be detected. Accordingly, in some embodiments, changes in the reflectivity of one or more calibration images may be correlated with changes in position of the one or more projection surfaces  500 . In some embodiments, changes in the reflectivity of one or more calibration images may be correlated with changes in conformation associated with the one or more projection surfaces  500 . In some embodiments, the reflectivity of one or more fiducials that are associated with one or more projection surfaces  500  may be detected. Accordingly, in some embodiments, changes in the reflectivity of one or more fiducials may be correlated with changes in position of the one or more projection surfaces  500 . In some embodiments, changes in the reflectivity of one or more fiducials may be correlated with changes in conformation associated with the one or more projection surfaces  500 . For example, in some embodiments, the location of one or more projection surfaces  500  may remain substantially constant but the conformation of the one or more projection surfaces  500  may change. 
     At operation  308 , the obtaining operation  210  may include obtaining information associated with one or more changes in light absorbance of the one or more projection surfaces. In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in light absorbance of the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to obtain information associated with one or more changes in light absorbance of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to obtain information from one or more sensors  260  that are configured to detect changes in the light absorbance of one or more projection surfaces  500 . For example, in some embodiments, one or more projection surfaces  500  may exhibit changes in polarization upon undergoing changes in conformation. Accordingly, in some embodiments, one or more changes in light absorbance may be detected that indicate one or more changes in conformation of one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more alterations in the light absorbance associated with one or more projection surfaces  500 . In some embodiments, one or more light sensors  268  may be configured to detect one or more alterations in the light absorbance associated with one or more projection surfaces  500 . In some embodiments, one or more projection surfaces  500  may include one or more materials that undergo one or more changes in light absorbance upon being illuminated. Accordingly, in some embodiments, one or more projection surfaces  500  may be illuminated with one or more calibration images that alter the absorbance of one or more portions of the projection surface  500  that are illuminated with the one or more calibration images. Accordingly, in some embodiments, changes in the absorbance pattern that occurs during a change in conformation of the projection surface  500  may be detected to indicate one or more changes in conformation of the projection surface  500 . For example, in some embodiments, fluorescent materials may be used to coat a projection surface  500  such that different areas of the projection surface  500  are coated with different fluorescent materials. Accordingly, if the projection surface  500  undergoes a change in conformation, the light that is absorbed by the projection surface  500  will change. 
     At operation  310 , the obtaining operation  210  may include obtaining information associated with one or more changes in light transmission of the one or more projection surfaces. In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in light transmission of the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to obtain information associated with one or more changes in light transmission of the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to obtain information from one or more sensors  260  that are configured to detect changes in the light transmission of one or more projection surfaces  500 . For example, in some embodiments, one or more projection surfaces  500  may exhibit changes in polarization upon undergoing changes in conformation. Accordingly, in some embodiments, one or more changes in light transmission may be detected that indicate one or more changes in conformation of one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more alterations in the light transmission associated with one or more projection surfaces  500 . In some embodiments, one or more light sensors  268  may be configured to detect one or more alterations in the light transmission associated with one or more projection surfaces  500 . In some embodiments, one or more projection surfaces  500  may include one or more materials that undergo one or more changes in light transmission upon being illuminated. Accordingly, in some embodiments, one or more projection surfaces  500  may be illuminated with one or more calibration images that alter the transmission of one or more portions of the projection surface  500  that are illuminated with the one or more calibration images. Accordingly, in some embodiments, changes in the transmission pattern that occur during a change in conformation of the projection surface  500  may be detected to indicate one or more changes in conformation of the projection surface  500 . For example, in some embodiments, fluorescent materials may be used to coat a projection surface  500  such that different areas of the projection surface  500  are coated with different fluorescent materials. Accordingly, if the projection surface  500  undergoes a change in conformation, the light that is transmitted by the projection surface  500  will change. In some embodiments, changes in light transmission may include changes in light emission. For example, in some embodiments, phosphorescent materials may be used to coat a projection surface  500  such that different areas of the projection surface  500  are coated with different phosphorescent materials. Accordingly, if the projection surface  500  undergoes a change in conformation, the light that is emitted by the projection surface  500  will change. 
       FIG. 4  illustrates alternative embodiments of the example operational flow  200  of  FIG. 2 .  FIG. 4  illustrates example embodiments where the obtaining operation  210  may include at least one additional operation. Additional operations may include an operation  402 , operation  404 , operation  406 , operation  408 , and/or operation  410 . 
     At operation  402 , the obtaining operation  210  may include obtaining information associated with one or more changes in illumination associated with the one or more projection surfaces. In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in illumination associated with the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to obtain information from one or more sensors  260  that are configured to detect changes in illumination associated with the one or more projection surfaces  500 . For example, in some embodiments, one or more light sensors  268  may be configured to detect light that is reflected off one or more projection surfaces  500  to determine if the projection surface  500  has undergone a change in position from an area having a certain flux of light to a second area having a different flux of light. 
     At operation  404 , the obtaining operation  210  may include obtaining information associated with one or more changes in motion associated with the one or more projection surfaces. In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in motion associated with the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to obtain information from one or more sensors  260  that are configured to detect changes in motion associated with the one or more projection surfaces  500 . In some embodiments, one or more motion sensors  261  may be configured to detect changes in motion associated with one or more projection surfaces  500 . In some embodiments, one or more sensors  260  may be configured to detect changes in motion associated with one or more fiducials associated with one or more projection surfaces  500 . In some embodiments, one or more sensors  260  may be configured to detect changes in motion associated with one or more calibration images associated with one or more projection surfaces  500 . In some embodiments, one or more sensors  260  may be configured to detect motion of one or more objects associated with one or more projection surfaces  500 . Examples of such objects include, but are not limited to, pencils, pens, styluses, fingers, and the like (e.g., U.S. Pat. Nos. 6,266,048; 6,614,422; 6,710,770; 6,750,849; 6,798,401; 7,016,711; 7,071,924; 7,151,530; 7,290,885; 7,173,605; 7,242,388; 7,248,151; 7,305,368). 
     At operation  406 , the obtaining operation  210  may include obtaining information associated with one or more changes in one or more conformations of the one or more projection surfaces. In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more conformations of the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to obtain information from one or more sensors  260  that are configured to detect changes in conformation associated with the one or more projection surfaces  500 . In some embodiments, one or more sensors  260  may be configured to detect one or more changes in the position of one or more fiducials associated with one or more projection surfaces  500 . Accordingly, in some embodiments, one or more changes in position of the one or more fiducials associated with one or more projection surfaces  500  may be used to determine one or more changes in the conformation of the one or more projection surfaces  500 . In some embodiments, one or more sensors  260  may be configured to detect one or more changes in the position of one or more calibration images associated with one or more projection surfaces  500 . Accordingly, in some embodiments, one or more changes in position of the one or more calibration images associated with one or more projection surfaces  500  may be used to determine one or more changes in the conformation of the one or more projection surfaces  500 . 
     At operation  408 , the obtaining operation  210  may include obtaining information associated with one or more marks associated with the one or more projection surfaces. In some embodiments, one or more sensor units  200  may obtain information associated with one or more marks associated with the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to obtain information from one or more sensors  260  that are configured to detect one or more marks associated with one or more projection surfaces  500 . In some embodiments, one or more sensors  260  may be configured to detect one or more marks that are fluorescent. In some embodiments, one or more sensors  260  may be configured to detect one or more marks that are phosphorescent. In some embodiments, one or more sensors  260  may be configured to detect one or more marks that are magnetic. In some embodiments, one or more sensors  260  may be configured to detect writing on a projection surface  500  (e.g., U.S. Pat. No. 7,355,583). For example, in some embodiments, one or more sensors  260  may be configured to detect ink (e.g., fluorescent ink, magnetic ink, phosphorescent ink, etc.). In some embodiments, one or more sensor units  200  may receive one or more signals  400  from one or more projection surfaces  500  that are configured to detect one or more marks on the projection surface  500  and transmit one or more signals  400  that include information associated with detection of the one or more marks. 
     At operation  410 , the obtaining operation  210  may include obtaining information associated with one or more changes in one or more marks associated with the one or more projection surfaces. In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more marks associated with the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to obtain information from one or more sensors  260  that are configured to detect one or more changes in one or more marks associated with one or more projection surfaces  500 . In some embodiments, one or more sensors  260  may determine one or more changes in one or more marks through comparing a first set of marks to a second set of marks and then determining differences that occur between the first and second set of marks. In some embodiments, one or more sensors  260  may be configured to detect one or more marks that are fluorescent. In some embodiments, one or more sensors  260  may be configured to detect one or more marks that are phosphorescent. In some embodiments, one or more sensors  260  may be configured to detect one or more marks that are magnetic. In some embodiments, one or more sensors  260  may be configured to detect changes in writing that occur on a projection surface  500  (e.g., U.S. Pat. No. 7,355,583). For example, in some embodiments, one or more detectors may be configured to detect ink (e.g., fluorescent ink, magnetic ink, phosphorescent ink, etc.). In some embodiments, one or more sensor units  200  may receive one or more signals  400  from one or more projection surfaces  500  that are configured to detect one or more changes in one or more marks on the projection surface  500  and transmit one or more signals  400  that include information associated with detection of the one or more changes in the one or more marks. 
       FIG. 5  illustrates alternative embodiments of the example operational flow  200  of  FIG. 2 .  FIG. 5  illustrates example embodiments where the obtaining operation  210  may include at least one additional operation. Additional operations may include an operation  502 , operation  504 , operation  506 , operation  508 , and/or operation  510 . 
     At operation  502 , the obtaining operation  210  may include receiving one or more signals that include the information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more sensor units  200  may receive one or more signals  400  that include the information associated with one or more changes in one or more features of one or more projection surfaces  500 . For example, in some embodiments, one or more sensor units  200  may receive one or more signals  400  that were transmitted by one or more surface transmitters  504  that are associated with one or more projection surfaces  500 . In some embodiments, the one or more signals  400  may include information associated with one or more changes in one or more features of the one or more projection surfaces  500 . In some embodiments, such information may be obtained by one or more surface sensors  502  that are integrated into one or more projection surfaces  500 . For example, in some embodiments, one or more pressure surface sensors  502  may be integrated into one or more projection surfaces  500  and configured to detect the motion of one or more objects (e.g., pens, pencils, styluses, fingers, etc.) relative to the one or more projection surfaces  500 . In some embodiments, one or more magnetic surface sensors  502  may be integrated into one or more projection surfaces  500  and configured to detect the motion of one or more objects relative to the one or more projection surfaces  500 . In some embodiments, one or more magnetic surface sensors  502  may be integrated into one or more projection surfaces  500  and configured to detect magnetic material that is applied to the one or more projection surfaces  500  (e.g., ink applied by a pen, material applied by a pencil, etc.). Accordingly, numerous types of surface sensors  502  may be associated with a projection surface  500 . 
     In some embodiments, one or more sensor units  200  may act as a relay between one or more surface sensors  502  and one or more projector units  700 . For example, in some embodiments, one or more sensor units  200  may receive one or more signals  400  from one or more surface sensors  502  that are associated with one or more projection surfaces  500 . The one or more sensor units  200  may than transmit one or more signals  400  that are received by one or more projector units  700 . Accordingly, in some embodiments, one sensor unit  200  may receive signals  400  from numerous projection surfaces  500  and transmit signals  400  to numerous projector units  700 . A sensor unit  200  may receive signals  400  that include numerous types of information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may receive one or more signals  400  that include information associated with one or more changes in the position of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may receive one or more signals  400  that include information associated with one or more changes in the conformation of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may receive one or more signals  400  that include information associated with one or more changes in the position and conformation of one or more projection surfaces  500 . 
     At operation  504 , the obtaining operation  210  may include obtaining information associated with content that is to be projected. In some embodiments, one or more sensor units  200  may obtain information associated with content that is to be projected. For example, in some embodiments, one or more sensor units  200  may access sensor memory  228  to obtain content that is to be projected. In some embodiments, one or more sensor units  200  may receive one or more signals  400  that include information associated with content that is to be projected. 
     At operation  506 , the obtaining operation  210  may include selecting content that is to be projected. In some embodiments, one or more sensor units  200  may select content that is to be projected. For example, in some embodiments, one or more sensor units  200  may be configured to select content that is to be projected from sensor memory  228 . In some embodiments, one or more sensor units  200  may be configured to select content that is to be projected in response to user input. In some embodiments, one or more sensor units  200  may be configured to select content that is to be projected in response to one or more sensors  260 . In some embodiments, one or more sensor units  200  may select content that is to be projected in response to one or more sensors  260  that detect one or more persons. For example, in some embodiments, one or more sensor units  200  may select content that is suitable for children if a child is detected. In some embodiments, one or more sensor units  200  may receive one or more signals  400  that include information associated with content that is to be selected for projection. 
     At operation  508 , the obtaining operation  210  may include obtaining information associated with content that is not to be projected. In some embodiments, one or more sensor units  200  may obtain information associated with content that is not to be projected. For example, in some embodiments, one or more sensor units  200  may access sensor memory  228  to obtain information associated with content that is not to be projected. In some embodiments, one or more sensor units  200  may receive one or more signals  400  that include information associated with content that is not to be projected. 
     At operation  510 , the obtaining operation  210  may include selecting content that is not to be projected. In some embodiments, one or more sensor units  200  may select content that is not to be projected. For example, in some embodiments, one or more sensor units  200  may be configured to access sensor memory  228  to select content that is not to be projected. In some embodiments, one or more sensor units  200  may be configured to select content that is not to be projected in response to user input. In some embodiments, one or more sensor units  200  may be configured to select content that is not to be projected in response to one or more sensors  260 . In some embodiments, one or more sensor units  200  may select content that is not to be projected in response to one or more sensors  260  that detect one or more persons. For example, in some embodiments, one or more sensor units  200  may select content that is not suitable for children if a child is detected. In some embodiments, one or more sensor units  200  may receive one or more signals  400  that include information associated with content that is not to be selected for projection. 
       FIG. 6  illustrates alternative embodiments of the example operational flow  200  of  FIG. 2 .  FIG. 6  illustrates example embodiments where the obtaining operation  210  may include at least one additional operation. Additional operations may include an operation  602 , operation  604 , and/or operation  606 . 
     At operation  602 , the obtaining operation  210  may include selecting one or more projection attributes associated with the one or more projection surfaces. In some embodiments, one or more sensor units  200  may select one or more projection attributes associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to access sensor memory  228  to determine one or more projection attributes associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be operably associated with one or more sensors  260  that are configured to determine one or more projection attributes associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to receive one or more signals  400  that include information associated with one or more projection attributes associated with one or more projection surfaces  500 . Examples of such projection attributes associated with one or more projection surfaces  500  include, but are not limited to, reflectivity, light absorbance, light reflection, light transmission, light emission, ability to record projected content, ability to transmit information associated with projected content, and the like. Accordingly, in some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include one or more instructions for one or more projector units  700  to project in response to one or more attributes associated with one or more projection surfaces  500 . For example, in some embodiments, one or more sensor units  200  may instruct one or more projector units  700  to project content that is to be printed if a projection surface  500  is able to facilitate printing of content that is projected onto the projection surface  500 . In some embodiments, one or more sensor units  200  may instruct one or more projector units  700  not to project content that is confidential if a projection surface  500  is able to facilitate printing of content that is projected onto the projection surface  500 . In some embodiments, one or more sensor units  200  may instruct one or more projector units  700  to project one or more wavelengths of light in response to one or more attributes associated with a projection surface  500 . For example, in some embodiments, a projection surface  500  may be made of material that transmits one or more wavelengths of light preferentially over other wavelengths of light. Accordingly, in some embodiments, a sensor unit  200  may instruct one or more projector units  700  to project the one or more wavelengths of light that are preferentially transmitted by a projection surface  500 . Accordingly, in some embodiments, one or more sensor units  200  may control one or more projector units  700  in accordance with projection attributes associated with one or more projection surfaces  500 . 
     At operation  604 , the obtaining operation  210  may include obtaining information associated with one or more capture capabilities associated with the one or more projection surfaces. In some embodiments, one or more sensor units  200  may obtain information associated with one or more capture capabilities associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to access sensor memory  228  to determine one or more capture capabilities associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be operably associated with one or more sensors  260  that are configured to determine one or more capture capabilities associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to receive one or more signals  400  that include information associated with one or more capture capabilities associated with one or more projection surfaces  500 . Examples of capture capabilities include, but are not limited to, printing of projected content, transmission of one or more signals  400  that include information associated with projected content, and the like. In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include instructions for controlling one or more projector units  700  in response to one or more capture capabilities associated with one or more projection surfaces  500 . For example, in some embodiments, a sensor unit  200  may instruct one or more projector units  700  to project content that is to be printed onto one or more projection surfaces  500  that are capable of facilitating printing of the projected content. In some embodiments, a sensor unit  200  may instruct one or more projector units  700  not to project content that is confidential onto one or more projection surfaces  500  that are capable of facilitating printing of the projected content. 
     At operation  606 , the obtaining operation  210  may include obtaining information associated with one or more recording attributes associated with the one or more projection surfaces. In some embodiments, one or more sensor units  200  may obtain information associated with one or more recording attributes associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to access sensor memory  228  to determine one or more recording attributes associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be operably associated with one or more sensors  260  that are configured to determine one or more recording attributes associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may be configured to receive one or more signals  400  that include information associated with one or more recording attributes associated with one or more projection surfaces  500 . Examples of recording attributes include, but are not limited to, permanent recordation of projected content, storage of projected content into memory, and the like. In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include one or more instructions for controlling one or more projector units  700  in response to one or more recording attributes associated with one or more projection surfaces  500 . For example, in some embodiments, a sensor unit  200  may instruct one or more projector units  700  to project content that is to be saved into memory onto one or more projection surfaces  500  that are capable of recording projected content into memory. In some embodiments, a sensor unit  200  may instruct one or more projector units  700  not to project content that is confidential onto one or more projection surfaces  500  that are capable of saving the projected content into memory. 
       FIG. 7  illustrates alternative embodiments of the example operational flow  200  of  FIG. 2 .  FIG. 7  illustrates example embodiments where the transmitting operation  220  may include at least one additional operation. Additional operations may include an operation  702 , operation  704 , operation  706 , operation  708 , and/or operation  710 . 
     At operation  702 , the transmitting operation  220  may include transmitting one or more signals that include information associated with detecting one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detecting one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detecting one or more changes in one or more features of one or more projection surfaces  500  with one or more sensors  260 . Signals  400  may include information that is obtained through use of numerous types of sensors  260 . For example, in some embodiments, one or more signals  400  may include information that is obtained through use of one or more light sensors  268  that are configured to detect light intensity associated with one or more projection surfaces  500 . In some embodiments, one or more signals  400  may include information that is obtained through use of one or more light sensors  268  that are configured to detect reflectivity associated with one or more projection surfaces  500 . In some embodiments, one or more signals  400  may include information that is obtained through use of one or more light sensors  268  that are configured to detect light absorbance associated with one or more projection surfaces  500 . In some embodiments, one or more signals  400  may include information that is obtained through use of one or more light sensors  268  that are configured to detect light transmission associated with one or more projection surfaces  500 . In some embodiments, one or more signals  400  may include information that is obtained through use of one or more motion sensors  261  that are configured to detect motion associated with one or more projection surfaces  500 . For example, in some embodiments, one or more motion sensors  261  may detect movement of one or more projection surfaces  500  from one area to another. In some embodiments, one or more motion sensors  261  may detect movement of one or more projection surfaces  500  to determine changes in conformation of the one or more projection surfaces  500 . In some embodiments, one or more signals  400  may include information that is obtained through use of one or more cameras  276  may be configured to detect one or more changes in one or more features of one or more projection surfaces  500 . For example, in some embodiments, one or more cameras  276  may be configured to detect the position of one or more fiducials associated with one or more projection surfaces  500 . Accordingly, in some embodiments, one or more cameras  276  may be configured to detect one or more changes in position of one or more projection surfaces  500  through determining one or more changes in the position of one or more fiducials associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in conformation of one or more projection surfaces  500  through determining one or more changes in the position of one or more fiducials associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in position of one or more projection surfaces  500  through determining one or more changes in the position of one or more calibration images associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in conformation of one or more projection surfaces  500  through determining one or more changes in the position of one or more calibration images associated with the one or more projection surfaces  500 . Accordingly, one or more signals  400  may include information that is obtained through use of sensors  260  that are configured in numerous ways to facilitate detection of one or more changes in one or more features of one or more projection surfaces  500 . 
     At operation  704 , the transmitting operation  220  may include transmitting one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detecting one or more changes in one or more features of one or more projection surfaces  500  with one or more cameras  276 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in one or more features of one or more projection surfaces  500 . For example, in some embodiments, one or more cameras  276  may be configured to detect the position of one or more fiducials associated with one or more projection surfaces  500 . Accordingly, in some embodiments, one or more cameras  276  may be configured to detect one or more changes in position of one or more projection surfaces  500  through determining one or more changes in the position of one or more fiducials associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in conformation of one or more projection surfaces  500  through determining one or more changes in the position of one or more fiducials associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in position of one or more projection surfaces  500  through determining one or more changes in the position of one or more calibration images associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in conformation of one or more projection surfaces  500  through determining one or more changes in the position of one or more calibration images associated with the one or more projection surfaces  500 . 
     At operation  706 , the transmitting operation  220  may include transmitting one or more signals that include information associated with one or more changes in reflectivity of the one or more projection surfaces. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with one or more changes in reflectivity of the one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detecting one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with correlating one or more changes in the reflectivity of one or more projection surfaces  500  with one or more changes in the conformation associated with the one or more projection surfaces  500 . In some embodiments, such changes in reflectivity may be correlated to one or more changes in position associated with one or more projection surfaces  500 . 
     At operation  708 , the transmitting operation  220  may include transmitting one or more signals that include information associated with one or more changes in light absorbance of the one or more projection surfaces. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with one or more changes in light absorbance of the one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detecting one or more changes in the light absorbance of one or more projection surfaces  500 . For example, in some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with changes in polarization associated with one or more projection surfaces  500  that undergo one or more changes in conformation. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with one or more changes in light absorbance that indicate one or more changes in conformation of one or more projection surfaces  500 . For example, in some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more alterations in the light absorbance associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with one or more changes in one or more absorbance patterns that occur during one or more changes in the conformation of a projection surface  500 . 
     At operation  710 , the transmitting operation  220  may include transmitting one or more signals that include information associated with one or more changes in light transmission of the one or more projection surfaces. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with one or more changes in light transmission of the one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more changes in light transmission of the one or more projection surfaces  500 . For example, in some embodiments, one or more projection surfaces  500  may exhibit changes in polarization upon undergoing changes in conformation. Accordingly, in some embodiments, one or more changes in light transmission may be detected that indicate one or more changes in conformation of one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more changes in light transmission with one or more cameras  276 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more changes in light transmission with one or more light sensors  268 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more changes in light transmission that indicate one or more changes in conformation of one or more projection surfaces  500 . 
       FIG. 8  illustrates alternative embodiments of the example operational flow  200  of  FIG. 2 .  FIG. 8  illustrates example embodiments where the transmitting operation  220  may include at least one additional operation. Additional operations may include an operation  802 , operation  804 , operation  806 , operation  808 , and/or operation  810 . 
     At operation  802 , the transmitting operation  220  may include transmitting one or more signals that include information associated with one or more changes in illumination associated with the one or more projection surfaces. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with one or more changes in illumination associated with the one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more changes in the illumination associated with one or more projection surfaces  500 . For example, in some embodiments, sensor transmitters  251  may transmit one or more signals  400  that include information associated with light that is reflected off one or more projection surfaces  500  to determine if the projection surface  500  has undergone a change in position from an area having a certain flux of light to a second area having a different flux of light. 
     At operation  804 , the transmitting operation  220  may include transmitting one or more signals that include information associated with one or more changes in motion associated with the one or more projection surfaces. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with one or more changes in motion associated with the one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more changes in motion associated with the one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detecting changes in motion associated with one or more fiducials associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detecting changes in motion associated with one or more calibration images associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detecting changes in motion of one or more objects associated with one or more projection surfaces  500 . Examples of such objects include, but are not limited to, pencils, pens, styluses, fingers, and the like (e.g., U.S. Pat. Nos. 6,266,048; 6,614,422; 6,710,770; 6,750,849; 6,798,401; 7,016,711; 7,071,924; 7,151,530; 7,290,885; 7,173,605; 7,242,388; 7,248,151; 7,305,368). 
     At operation  806 , the transmitting operation  220  may include transmitting one or more signals that include information associated with one or more changes in one or more conformations of the one or more projection surfaces. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with one or more changes in one or more conformations of the one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more changes in conformation associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more changes in the position of one or more fiducials that are associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more changes in the position of one or more calibration images associated with one or more projection surfaces  500 . 
     At operation  808 , the transmitting operation  220  may include transmitting one or more signals that include information associated with one or more marks associated with the one or more projection surfaces. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with one or more marks associated with the one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more marks associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more marks that are fluorescent. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more marks that are phosphorescent. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more marks that are magnetic. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of writing on a projection surface  500  (e.g., U.S. Pat. No. 7,355,583). 
     At operation  810 , the transmitting operation  220  may include transmitting one or more signals that include information associated with one or more changes in one or more marks associated with the one or more projection surfaces. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with one or more changes in one or more marks associated with the one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more changes in one or more marks associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with determining one or more changes in one or more marks through comparing a first set of marks to a second set of marks and then determining differences that occur between the first and second set of marks. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more marks that are fluorescent. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more marks that are phosphorescent. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of one or more marks that are magnetic. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with detection of writing that occurs on a projection surface  500  (e.g., U.S. Pat. No. 7,355,583). 
       FIG. 9  illustrates alternative embodiments of the example operational flow  200  of  FIG. 2 .  FIG. 9  illustrates example embodiments where the transmitting operation  220  may include at least one additional operation. Additional operations may include an operation  902 , operation  904 , operation  906 , operation  908 , and/or operation  910 . 
     At operation  902 , the transmitting operation  220  may include transmitting one or more signals that include information associated with content that is to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with content that is to be projected. For example, in some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with accessing sensor memory  228  to obtain content that is to be projected. 
     At operation  904 , the transmitting operation  220  may include transmitting one or more signals that include information associated with selecting content that is to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with content that is to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with selecting content that is to be projected from sensor memory  228 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with selecting content that is to be projected in response to user input. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with selecting content that is to be projected in response to one or more sensors  260 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with selecting content that is to be projected in response to one or more sensors  260  that detect one or more persons. 
     At operation  906 , the transmitting operation  220  may include transmitting one or more signals that include information associated with content that is not to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with content that is not to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with accessing sensor memory  228  to obtain information associated with content that is not to be projected. 
     At operation  908 , the transmitting operation  220  may include transmitting one or more signals that include information associated with selecting content that is not to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with selecting content that is not to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with accessing sensor memory  228  to select content that is not to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with selecting content that is not to be projected in response to user input. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with selecting content that is not to be projected in response to one or more sensors  260 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with selecting content that is not to be projected in response to one or more sensors  260  that detect one or more persons. 
     At operation  910 , the transmitting operation  220  may include transmitting one or more signals that include information associated with selecting one or more projection attributes associated with the one or more projection surfaces. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with selecting one or more projection attributes associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with accessing sensor memory  228  to determine one or more projection attributes associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with determining one or more projection attributes associated with one or more projection surfaces  500 . Examples of such projection attributes associated with one or more projection surfaces  500  include, but are not limited to, reflectivity, light absorbance, light reflection, light transmission, light emission, ability to record projected content, ability to transmit information associated with projected content, and the like. Accordingly, in some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include one or more instructions for one or more projectors  760  to project in response to one or more attributes associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include one or more instructions for one or more projectors  760  to project content that is to be printed if a projection surface  500  is able to facilitate printing of content that is projected onto the projection surface  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include one or more instructions for one or more projectors  760  to not project content that is confidential if a projection surface  500  is able to facilitate printing of content that is projected onto the projection surface  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include one or more instructions for one or more projectors  760  to project one or more wavelengths of light in response to one or more attributes associated with a projection surface  500 . For example, in some embodiments, a projection surface  500  may be made of material that transmits one or more wavelengths of light preferentially over other wavelengths of light. Accordingly, in some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include one or more instructions for one or more projectors  760  to project one or more wavelengths of light that are preferentially transmitted by a projection surface  500 . 
       FIG. 10  illustrates alternative embodiments of the example operational flow  200  of  FIG. 2 .  FIG. 10  illustrates example embodiments where the transmitting operation  220  may include at least one additional operation. Additional operations may include an operation  1002  and/or operation  1004 . 
     At operation  1002 , the transmitting operation  220  may include transmitting one or more signals that include information associated with obtaining information associated with one or more capture capabilities associated with the one or more projection surfaces. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with obtaining information associated with one or more capture capabilities associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with accessing sensor memory  228  to determine one or more capture capabilities associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with determining one or more capture capabilities associated with one or more projection surfaces  500 . Examples of capture capabilities include, but are not limited to, printing of projected content, transmission of one or more signals  400  that include information associated with projected content, and the like. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include instructions for controlling one or more projectors  760  in response to one or more capture capabilities associated with one or more projection surfaces  500 . For example, in some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that instruct one or more projectors  760  to project content that is to be printed onto one or more projection surfaces  500  that are capable of facilitating printing of the projected content. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that instruct one or more projectors  760  not to project content that is confidential onto one or more projection surfaces  500  that are capable of facilitating printing of the projected content. 
     At operation  1004 , the transmitting operation  220  may include transmitting one or more signals that include information associated with one or more recording attributes associated with the one or more projection surfaces. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with one or more recording attributes associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with accessing sensor memory  228  to determine one or more recording attributes associated with one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with determining one or more recording attributes associated with one or more projection surfaces  500 . Examples of recording attributes include, but are not limited to, permanent recordation of projected content, storage of projected content into memory, and the like. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include one or more instructions for controlling one or more projectors  760  in response to one or more recording attributes associated with one or more projection surfaces  500 . For example, in some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that instruct one or more projectors  760  to project content that is to be saved into memory onto one or more projection surfaces  500  that are capable of recording projected content into memory. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that instruct one or more projector units  700  not to project content that is confidential onto one or more projection surfaces  500  that are capable of saving the projected content into memory. 
     In  FIG. 11  and in following figures that include various examples of operations used during performance of the method, discussion and explanation may be provided with respect to any one or combination of the above-described examples of  FIG. 1 , and/or with respect to other examples and contexts. In some embodiments, modules  210  and  220  of  FIG. 2  may correspond to modules  1110  and  1120  of  FIG. 11 . However, it should be understood that the operations may be executed in a number of other environments and contexts, and/or modified versions of  FIG. 1 . Also, although the various operations are presented in the sequence(s) illustrated, it should be understood that the various operations may be performed in other orders than those which are illustrated, or may be performed concurrently. 
     After a start operation, the operational flow  1100  includes an obtaining operation  1110  involving obtaining information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more features of one or more projection surfaces  500  directly. For example, in some embodiments, one or more sensor units  200  may obtain information from one or more sensors  260 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more features of one or more projection surfaces  500  indirectly. For example, in some embodiments, one or more sensor units  200  may receive one or more signals  400  that are transmitted by one or more projection surfaces  500  that include information associated with one or more changes in one or more features of the one or more projection surfaces  500 . One or more sensor units  200  may obtain numerous types of information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in position associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in conformation associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in position and conformation associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more fiducials associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more marks associated with one or more projection surfaces  500 . 
     After a start operation, the operational flow  1100  includes a transmitting operation  1120  involving transmitting one or more signals that include the information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with one or more changes in one or more positions of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with one or more changes in one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with one or more changes in one or more positions and one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with adjusting projection output in response to one or more changes in one or more features of one or more projection surfaces  500 . For example, in some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with adjusting the intensity of light that is projected onto one or more projection surfaces  500  in response to one or more changes in one or more features of the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with adjusting the wavelengths of light that are projected onto one or more projection surfaces  500  in response to one or more changes in one or more features of the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with projecting content onto two or more separate projection surfaces  500  in response to one or more changes in one or more features of at least one of the two or more projection surfaces  500 . 
     After a start operation, the operational flow  1100  includes a coordinating operation  1130  involving coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor processors  222  may facilitate coordination of one or more features of one or more projection surfaces  500  with one or more commands. Numerous features of one or more projection surfaces  500  may be coordinated with one or more commands. Examples of such features include, but are not limited to, reflectivity, light absorbance, light transmission, illumination, motion, conformation, marks, changes in one or more marks, projection attributes, capture capabilities, recording attributes, and the like. Examples of commands include, but are not limited to, commands to: increase light output from one or more projectors  760 , decrease light output from one or more projectors  760 , select one or more wavelengths of light for projection, select one or more wavelengths of light that are not to be projected, direct projection outputs, project in response to changes in conformation, project in response to motion, project in response to one or more marks associated with one or more projection surfaces  500 , project in response to one or more changes in one or more marks associated with one or more projection surfaces  500 , select content for projection, select content that is not to be projected, project in response to one or more attributes associated with one or more projection surfaces  500 , project in response to one or more capabilities associated with one or more projection surfaces  500 , save content into memory, and the like. In some embodiments, one or more sensor units  200  may access memory. For example, in some embodiments, one or more sensor units  200  may access one or more lookup tables that include correlations of one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor units  200  may access one or more algorithms may be used to correlate one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. 
       FIG. 12  illustrates alternative embodiments of the example operational flow  1100  of  FIG. 11 .  FIG. 12  illustrates example embodiments where the coordinating operation  1130  may include at least one additional operation. Additional operations may include an operation  1202 , operation  1204 , operation  1206 , operation  1208 , and/or operation  1210 . 
     At operation  1202 , the coordinating operation  1130  may include coordinating the one or more changes in the one or more features of one or more projection surfaces with one or more projection commands. In some embodiments, one or more sensor units  200  may facilitate coordinating the one or more changes in the one or more features of one or more projection surfaces  500  with one or more projection commands. For example, in some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in light transmission by one or more projection surfaces  500  with one or more projection commands to increase or decrease the intensity of light projected by one or more projectors  760  onto the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in the light absorbance of one or more projection surfaces  500  with one or more projection commands to alter the intensity of one or more wavelengths of light projected by one or more projectors  760  onto the one or more projection surfaces  500 . For example, in some embodiments, one or more projection surfaces  500  may undergo one or more changes that alter the absorbance of one or more wavelengths of light by the one or more projection surfaces  500 . Accordingly, in some embodiments, one or more sensor units  200  may alter the intensity of one or more wavelengths of light that are projected onto the one or more projection surfaces  500  in response to the altered absorbance of the one or more projection surfaces  500 . 
     At operation  1204 , the coordinating operation  1130  may include coordinating one or more changes in motion associated with the one or more projection surfaces with one or more commands. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in motion associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to select content and project the content. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to select content that is not to be projected. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to project content onto one or more projection surfaces  500  that are capable of recording the content. Accordingly, one or more changes in the motion of one or more projection surfaces  500  may be coordinated with numerous commands. 
     At operation  1206 , the coordinating operation  1130  may include coordinating one or more changes in one or more conformations of the one or more projection surfaces with one or more commands. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more conformations of the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to select content and project the content. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to select content that is not to be projected. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to project content onto one or more projection surfaces  500  that are capable of recording the content. Accordingly, one or more changes in the conformation of one or more projection surfaces  500  may be coordinated with numerous commands. 
     At operation  1208 , the coordinating operation  1130  may include coordinating one or more marks associated with the one or more projection surfaces with one or more commands. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more marks associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content that is not to be projected. For example, in some embodiments, one or more sensor units  200  may facilitate coordinating one or more marks associated with confidential information with one or more commands to project confidential information associated with the one or more marks. In some embodiments, one or more projector control unit  740  may facilitate coordinating of one or more user  600  created marks placed onto one or more projection surfaces  500  with one or more commands. For example, in some embodiments, one or more users  600  may create one or more marks on a projection surface  500  with one or more pens that may be correlated with one or more commands to select content from memory and project the selected content. In some embodiments, one or more users  600  may configure one or more sensor units  200  to recognize one or more user  600  created marks and facilitate coordinating one or more user  600  created marks with one or more commands. 
     At operation  1210 , the coordinating operation  1130  may include coordinating one or more changes in one or more marks associated with the one or more projection surfaces with one or more commands. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more marks associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content that is not to be projected. For example, in some embodiments, one or more sensor units  200  may facilitate coordinating elimination (e.g., erasure) of one or more marks with one or more commands. 
       FIG. 13  illustrates alternative embodiments of the example operational flow  1100  of  FIG. 11 .  FIG. 13  illustrates example embodiments where the coordinating operation  1130  may include at least one additional operation. Additional operations may include an operation  1302 , operation  1304 , operation  1306 , operation  1308 , and/or operation  1310 . 
     At operation  1302 , the coordinating operation  1130  may include accessing one or more databases. In some embodiments, one or more sensor units  200  may facilitate accessing one or more databases. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more databases. For example, in some embodiments, one or more sensor units  200  may facilitate accessing one or more databases that include confidential material in response to one or more marks associated with confidential information being placed onto one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may facilitate accessing one or more databases in response to one or more changes in the conformation of one or more projection surfaces  500 . For example, in some embodiments, folding a projection surface  500  in half may be coordinated with accessing one or more databases while folding the projection surfaces  500  into quarters may be coordinated with accessing one or more different databases. Accordingly, in some embodiments, one or more sensor units  200  may facilitate accessing one or more databases in response to one or more specified changes in the conformation of a projection surface  500 . 
     At operation  1304 , the coordinating operation  1130  may include accessing one or more lookup tables. In some embodiments, one or more sensor units  200  may facilitate accessing one or more lookup tables. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more lookup tables. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more lookup tables that include information for coordinating the one or more changes in conformation with one or more commands. For example, in some embodiments, one or more lookup tables may include information for coordinating one or more specified changes in conformation of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more lookup tables may include information for coordinating one or more specified changes in conformation of one or more projection surfaces  500  with one or more commands to select content that is not for projection. In some embodiments, one or more sensor units  200  may facilitate accessing one or more lookup tables in response to one or more changes in the conformation of one or more projection surfaces  500 . For example, in some embodiments, folding a projection surface  500  in half may be coordinated with accessing one or more lookup tables while folding the projection surface  500  into quarters may be coordinated with accessing one or more different lookup tables. Accordingly, in some embodiments, one or more sensor units  200  may facilitate accessing one or more lookup tables in response to one or more specified changes in the conformation of a projection surface  500 . In some embodiments, one or more sensor units  200  may facilitate accessing one or more lookup tables in response to one or more changes in the position of one or more projection surfaces  500 . For example, in some embodiments, moving a projection surface  500  from one position to another may be coordinated with accessing one or more lookup tables. Accordingly, in some embodiments, one or more sensor units  200  may facilitate accessing one or more lookup tables in response to one or more specified changes in the position of a projection surface  500 . In some embodiments, one or more sensor units  200  may facilitate accessing one or more lookup tables in response to one or more motions associated with one or more projection surfaces  500 . For example, in some embodiments, rotating a projection surface  500  may be coordinated with accessing one or more lookup tables. Accordingly, in some embodiments, one or more sensor units  200  may facilitate accessing one or more lookup tables in response to one or more specified motions associated with a projection surface  500 . 
     At operation  1306 , the coordinating operation  1130  may include accessing one or more content packets. In some embodiments, one or more sensor units  200  may facilitate accessing one or more content packets  402 . In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more content packets  402 . In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more content packets  402  that include specified information. For example, in some embodiments, one or more lookup tables may include information for coordinating one or more specified changes in conformation of one or more projection surfaces  500  with one or more commands to access one or more content packets  402  that include specified information. Accordingly, in some embodiments, one or more specified changes in conformation may be coordinated with specified information. In some embodiments, one or more lookup tables may include information for coordinating one or more specified changes in conformation of one or more projection surfaces  500  with one or more commands to access one or more specified content packets  402 . Accordingly, in some embodiments, one or more specified changes in conformation may be coordinated with one or more specified content packets  402 . 
     At operation  1308 , the coordinating operation  1130  may include coordinating the one or more changes in one or more features of one or more projection surfaces with one or more commands to select content for projection. In some embodiments, one or more sensor units  200  may facilitate coordinating the one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more conformations of one or more projection surfaces  500  with one or more commands to select content for projection. For example, in some embodiments, folding a projection surface  500  in half along the length of the projection surface  500  may be coordinated with one or more commands to select confidential information for projection. In some embodiments, folding a projection surface  500  in half along the width of the projection surface  500  may be coordinated with one or more commands to select nonconfidential information for projection. In some embodiments, a user  600  may specify one or more changes in conformation that may be coordinated with one or more commands to select content for projection. For example, a user  600  may specify that folding a projection surface  500  in a diagonal manner is to be coordinated with one or more commands to select confidential information for projection. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more positions of one or more projection surfaces  500  with one or more commands to select content for projection. For example, in some embodiments, rotating a projection surface  500  may be coordinated with one or more commands to select content for projection. Accordingly, in some embodiments, numerous changes in the conformation of a projection surface  500  may be coordinated with one or more commands to select content for projection. 
     At operation  1310 , the coordinating operation  1130  may include coordinating the one or more changes in one or more features of one or more projection surfaces with one or more commands to select content that is not for projection. In some embodiments, one or more sensor units  200  may facilitate coordinating the one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to select content that is not for projection. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more conformations of one or more projection surfaces  500  with one or more commands to select content that is not for projection. For example, in some embodiments, folding a projection surface  500  in half along the length of the projection surface  500  may be coordinated with one or more commands to select confidential information that is not for projection. In some embodiments, a user  600  may specify one or more changes in conformation that may be coordinated with one or more commands to select content that is not for projection. For example, a user  600  may specify that folding a projection surface  500  in a diagonal manner is to be coordinated with one or more commands to select confidential information that is not for projection. Accordingly, in some embodiments, numerous changes in the conformation of a projection surface  500  may be coordinated with one or more commands to select content that is not for projection. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more positions of one or more projection surfaces  500  with one or more commands to select content that is not for projection. For example, in some embodiments, rotating a projection surface  500  may be coordinated with one or more commands to select content that is not for projection. 
       FIG. 14  illustrates alternative embodiments of the example operational flow  1100  of  FIG. 11 .  FIG. 14  illustrates example embodiments where the coordinating operation  1130  may include at least one additional operation. Additional operations may include an operation  1402 , and/or operation  1404 . 
     At operation  1402 , the coordinating operation  1130  may include coordinating one or more recording attributes associated with the one or more projection surfaces with content that is to be projected. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is to be projected. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is to be recorded into memory. For example, in some embodiments, the ability of one or more projection surfaces  500  to facilitate saving content that is projected onto the projection surface  500  into memory may be coordinated with content that is to be projected on the projection surface  500  and saved into memory. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is to be printed. For example, in some embodiments, the ability of one or more projection surfaces  500  to facilitate printing of content that is projected onto the projection surface  500  may be coordinated with content that is to be projected onto the projection surface  500  and printed. 
     At operation  1404 , the coordinating operation  1130  may include coordinating one or more recording attributes associated with the one or more projection surfaces with content that is not to be projected. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is not to be projected. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is not to be recorded into memory. For example, in some embodiments, the ability of one or more projection surfaces  500  to facilitate saving content that is projected onto the projection surface  500  into memory may be coordinated with content that is not to be projected onto the projection surface  500 . In some embodiments, one or more sensor units  200  may facilitate coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is not to be printed. For example, in some embodiments, the ability of one or more projection surfaces  500  to facilitate printing of content that is projected onto the projection surface  500  may be coordinated with content that is to be projected onto the projection surface  500 . 
     In  FIG. 15  and in following figures that include various examples of operations used during performance of the method, discussion and explanation may be provided with respect to any one or combination of the above-described examples of  FIG. 1 , and/or with respect to other examples and contexts. In some embodiments, modules  1110 ,  1120  and  1130  of  FIG. 11  may correspond to modules  1510 ,  1520  and  1530  of  FIG. 15 . However, it should be understood that the operations may be executed in a number of other environments and contexts, and/or modified versions of  FIG. 1 . Also, although the various operations are presented in the sequence(s) illustrated, it should be understood that the various operations may be performed in other orders than those which are illustrated, or may be performed concurrently. 
     After a start operation, the operational flow  1500  includes an obtaining operation  1510  involving obtaining information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more features of one or more projection surfaces  500  directly. For example, in some embodiments, one or more sensor units  200  may obtain information from one or more sensors  260 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more features of one or more projection surfaces  500  indirectly. For example, in some embodiments, one or more sensor units  200  may receive one or more signals  400  that are transmitted by one or more projection surfaces  500  that include information associated with one or more changes in one or more features of the one or more projection surfaces  500 . One or more sensor units  200  may obtain numerous types of information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in position associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in conformation associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in position and conformation associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more fiducials associated with one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may obtain information associated with one or more changes in one or more marks associated with one or more projection surfaces  500 . 
     After a start operation, the operational flow  1500  includes a transmitting operation  1520  involving transmitting one or more signals that include the information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with one or more changes in one or more positions of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with one or more changes in one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with one or more changes in one or more positions and one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with adjusting projection output in response to one or more changes in one or more features of one or more projection surfaces  500 . For example, in some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with adjusting the intensity of light that is projected onto one or more projection surfaces  500  in response to one or more changes in one or more features of the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with adjusting the wavelengths of light that are projected onto one or more projection surfaces  500  in response to one or more changes in one or more features of the one or more projection surfaces  500 . In some embodiments, one or more sensor units  200  may transmit one or more signals  400  that include the information associated with projecting content onto two or more separate projection surfaces  500  in response to one or more changes in one or more features of at least one of the two or more projection surfaces  500 . 
     After a start operation, the operational flow  1500  includes a coordinating operation  1530  involving coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In some embodiments, one or more sensor units  200  may facilitate coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor processors  222  may facilitate coordination of one or more features of one or more projection surfaces  500  with one or more commands. Numerous features of one or more projection surfaces  500  may be coordinated with one or more commands. Examples of such features include, but are not limited to, reflectivity, light absorbance, light transmission, illumination, motion, conformation, marks, changes in one or more marks, projection attributes, capture capabilities, recording attributes, and the like. Examples of commands include, but are not limited to, commands to: increase light output from one or more projectors  760 , decrease light output from one or more projectors  760 , select one or more wavelengths of light for projection, select one or more wavelengths of light that are not to be projected, direct projection outputs, project in response to changes in conformation, project in response to motion, project in response to one or more marks associated with one or more projection surfaces  500 , project in response to one or more changes in one or more marks associated with one or more projection surfaces  500 , select content for projection, select content that is not to be projected, project in response to one or more attributes associated with one or more projection surfaces  500 , project in response to one or more capabilities associated with one or more projection surfaces  500 , save content into memory, and the like. In some embodiments, one or more sensor units  200  may access memory. For example, in some embodiments, one or more sensor units  200  may access one or more lookup tables that include correlations of one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor units  200  may access one or more algorithms that may be used to correlate one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. 
     After a start operation, the operational flow  1500  includes a transmitting operation  1540  involving transmitting one or more signals that include information associated with the coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with the coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with the coordinating one or more changes in the position of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with the coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with the coordinating one or more changes in the position and the conformation of one or more projection surfaces  500  with one or more commands. 
       FIG. 16  illustrates alternative embodiments of the example operational flow  1500  of  FIG. 15 .  FIG. 16  illustrates example embodiments where the transmitting operation  1540  may include at least one additional operation. Additional operations may include an operation  1602 , operation  1604 , operation  1606 , operation  1608 , and/or operation  1610 . 
     At operation  1602 , the transmitting operation  1540  may include transmitting one or more signals that include information associated with the coordinating one or more changes in one or more features of one or more projection surfaces with one or more projection commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with the coordinating one or more changes in one or more features of one or more projection surfaces with one or more projection commands. For example, in some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in light transmission by one or more projection surfaces  500  with one or more projection commands to increase or decrease the intensity of light projected by one or more projectors  760  onto the one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in the light absorbance of one or more projection surfaces  500  with one or more projection commands to alter the intensity of one or more wavelengths of light projected by one or more projectors  760  onto the one or more projection surfaces  500 . 
     At operation  1604 , the transmitting operation  1540  may include transmitting one or more signals that include information associated with the coordinating one or more changes in motion associated with the one or more projection surfaces with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with the coordinating one or more changes in motion associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in motion associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to select content and project the content. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to select content that is not to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to project content onto one or more projection surfaces  500  that are capable of recording the content. 
     At operation  1606 , the transmitting operation  1540  may include transmitting one or more signals that include information associated with the coordinating one or more changes in one or more conformations of the one or more projection surfaces with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with the coordinating one or more changes in one or more conformations of the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to select content and project the content. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to select content that is not to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to project content onto one or more projection surfaces  500  that are capable of recording the content. 
     At operation  1608 , the transmitting operation  1540  may include transmitting one or more signals that include information associated with the coordinating one or more marks associated with the one or more projection surfaces with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with the coordinating one or more marks associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more marks associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content that is not to be projected. For example, in some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more marks associated with confidential information with one or more commands to project the confidential information associated with the one or more marks. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more user  600  created marks placed onto one or more projection surfaces  500  with one or more commands. 
     At operation  1610 , the transmitting operation  1540  may include transmitting one or more signals that include information associated with the coordinating one or more changes in one or more marks associated with the one or more projection surfaces with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with the coordinating one or more changes in one or more marks associated with the one or more projection surfaces with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in one or more marks associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content that is not to be projected. For example, in some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating elimination (e.g., erasure) of one or more marks with one or more commands. 
       FIG. 17  illustrates alternative embodiments of the example operational flow  1500  of  FIG. 15 .  FIG. 17  illustrates example embodiments where the transmitting operation  1540  may include at least one additional operation. Additional operations may include an operation  1702 , operation  1704 , operation  1706 , operation  1708 , and/or operation  1710 . 
     At operation  1702 , the transmitting operation  1540  may include transmitting one or more signals that include information associated with accessing one or more databases. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with accessing one or more databases. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with accessing one or more databases that include confidential material in response to one or more marks associated with confidential information being placed onto one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with accessing one or more databases in response to one or more changes in the conformation of one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with accessing one or more databases in response to one or more specified changes in the conformation of a projection surface  500 . 
     At operation  1704 , the transmitting operation  1540  may include transmitting one or more signals that include information associated with accessing one or more lookup tables. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with the accessing one or more lookup tables. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more lookup tables. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more specified changes in conformation of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with accessing one or more lookup tables in response to one or more changes in the conformation of one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with accessing one or more lookup tables in response to one or more changes in the position of one or more projection surfaces  500 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with accessing one or more lookup tables in response to one or more motions associated with one or more projection surfaces  500 . 
     At operation  1706 , the transmitting operation  1540  may include transmitting one or more signals that include information associated with accessing one or more content packets. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with the accessing one or more content packets  402 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more content packets  402 . In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more content packets that include specified information. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more specified changes in conformation with specified information. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more specified changes in conformation of one or more projection surfaces  500  with one or more commands to access one or more specified content packets  402 . 
     At operation  1708 , the transmitting operation  1540  may include transmitting one or more signals that include information associated with the coordinating the one or more changes in one or more features of one or more projection surfaces with one or more commands to select content for projection. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with the coordinating the one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in one or more conformations of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in one or more positions of one or more projection surfaces  500  with one or more commands to select content for projection. 
     At operation  1710 , the transmitting operation  1540  may include transmitting one or more signals that include information associated with the coordinating the one or more changes in one or more features of one or more projection surfaces with one or more commands to select content that is not for projection. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with the coordinating the one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to select content that is not for projection. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to select content that is not for projection. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in one or more conformations of one or more projection surfaces  500  with one or more commands to select content that is not for projection. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more changes in one or more positions of one or more projection surfaces  500  with one or more commands to select content that is not for projection. 
       FIG. 18  illustrates alternative embodiments of the example operational flow  1500  of  FIG. 15 .  FIG. 18  illustrates example embodiments where the transmitting operation  1540  may include at least one additional operation. Additional operations may include an operation  1802  and/or operation  1804 . 
     At operation  1802 , the transmitting operation  1540  may include transmitting one or more signals that include information associated with coordinating one or more recording attributes associated with the one or more projection surfaces with content that is to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more recording attributes associated with the one or more projection surfaces with content that is to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is to be recorded into memory. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is to be printed. 
     At operation  1804 , the transmitting operation  1540  may include transmitting one or more signals that include information associated with coordinating one or more recording attributes associated with the one or more projection surfaces with content that is not to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more recording attributes associated with the one or more projection surfaces with content that is not to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is not to be projected. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is not to be recorded into memory. In some embodiments, one or more sensor transmitters  251  may transmit one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is not to be printed. 
     In  FIG. 19  and in following figures that include various examples of operations used during performance of the method, discussion and explanation may be provided with respect to any one or combination of the above-described examples of  FIG. 1 , and/or with respect to other examples and contexts. However, it should be understood that the operations may be executed in a number of other environments and contexts, and/or modified versions of  FIG. 1 . Also, although the various operations are presented in the sequence(s) illustrated, it should be understood that the various operations may be performed in other orders than those which are illustrated, or may be performed concurrently. 
     After a start operation, the operational flow  1900  includes a receiving operation  1910  involving receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more projector units  700  may facilitate reception of one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more positions of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more conformations and one or more positions of one or more projection surfaces  500 . 
     After a start operation, the operational flow  1900  includes a projecting operation  1920  involving projecting in response to the receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more projector units  700  may facilitate projection in response to receiving one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projectors  760  may project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projectors  760  may project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more projectors  760  may project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more positions of one or more projection surfaces  500 . In some embodiments, one or more projectors  760  may project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more conformations and one or more positions of one or more projection surfaces  500 . 
       FIG. 20  illustrates alternative embodiments of the example operational flow  1900  of  FIG. 19 .  FIG. 20  illustrates example embodiments where the receiving operation  1910  may include at least one additional operation. Additional operations may include an operation  2002 , operation  2004 , operation  2006 , operation  2008 , and/or operation  2010 . 
     At operation  2002 , the receiving operation  1910  may include receiving one or more signals that include information associated with detecting one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detecting one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detecting one or more changes in one or more features of one or more projection surfaces  500  with one or more sensors  260 . Signals  400  may include information that is obtained through use of numerous types of sensors  260 . For example, in some embodiments, one or more signals  400  may include information that is obtained through use of one or more light sensors  268  that are configured to detect light intensity associated with one or more projection surfaces  500 . In some embodiments, one or more signals  400  may include information that is obtained through use of one or more light sensors  268  that are configured to detect reflectivity associated with one or more projection surfaces  500 . In some embodiments, one or more signals  400  may include information that is obtained through use of one or more light sensors  268  that are configured to detect light absorbance associated with one or more projection surfaces  500 . In some embodiments, one or more signals  400  may include information that is obtained through use of one or more light sensors  268  that are configured to detect light transmission associated with one or more projection surfaces  500 . In some embodiments, one or more signals  400  may include information that is obtained through use of one or more motion sensors  261  that are configured to detect motion associated with one or more projection surfaces  500 . For example, in some embodiments, one or more motion sensors  261  may detect movement of one or more projection surfaces  500  from one area to another. In some embodiments, one or more motion sensors  261  may detect movement of one or more projection surfaces  500  to determine changes in conformation of the one or more projection surfaces  500 . In some embodiments, one or more signals  400  may include information that is obtained through use of one or more cameras  276  may be configured to detect one or more changes in one or more features of one or more projection surfaces  500 . For example, in some embodiments, one or more cameras  276  may be configured to detect the position of one or more fiducials associated with one or more projection surfaces  500 . Accordingly, in some embodiments, one or more cameras  276  may be configured to detect one or more changes in position of one or more projection surfaces  500  through determining one or more changes in the position of one or more fiducials associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in conformation of one or more projection surfaces  500  through determining one or more changes in the position of one or more fiducials associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in position of one or more projection surfaces  500  through determining one or more changes in the position of one or more calibration images associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in conformation of one or more projection surfaces  500  through determining one or more changes in the position of one or more calibration images associated with the one or more projection surfaces  500 . Accordingly, one or more signals  400  may include information that is obtained through use of sensors  260  that are configured in numerous ways to facilitate detection of one or more changes in one or more features of one or more projection surfaces  500 . 
     At operation  2004 , the receiving operation  1910  may include receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detecting one or more changes in one or more features of one or more projection surfaces  500  with one or more cameras  276 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in one or more features of one or more projection surfaces  500 . For example, in some embodiments, one or more cameras  276  may be configured to detect the position of one or more fiducials associated with one or more projection surfaces  500 . Accordingly, in some embodiments, one or more cameras  276  may be configured to detect one or more changes in position of one or more projection surfaces  500  through determining one or more changes in the position of one or more fiducials associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in conformation of one or more projection surfaces  500  through determining one or more changes in the position of one or more fiducials associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in position of one or more projection surfaces  500  through determining one or more changes in the position of one or more calibration images associated with the one or more projection surfaces  500 . In some embodiments, one or more cameras  276  may be configured to detect one or more changes in conformation of one or more projection surfaces  500  through determining one or more changes in the position of one or more calibration images associated with the one or more projection surfaces  500 . 
     At operation  2006 , the receiving operation  1910  may include receiving one or more signals that include information associated with one or more changes in reflectivity of the one or more projection surfaces. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in reflectivity of the one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detecting one or more changes in reflectivity of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with correlating one or more changes in the reflectivity of one or more projection surfaces  500  with one or more changes in the conformation associated with the one or more projection surfaces  500 . In some embodiments, such changes in reflectivity may be correlated to one or more changes in position associated with one or more projection surfaces  500 . 
     At operation  2008 , the receiving operation  1910  may include receiving one or more signals that include information associated with one or more changes in light absorbance of the one or more projection surfaces. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in light absorbance of the one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detecting one or more changes in the light absorbance of one or more projection surfaces  500 . For example, in some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with changes in polarization associated with one or more projection surfaces  500  that undergo one or more changes in conformation. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in light absorbance that indicate one or more changes in conformation of one or more projection surfaces  500 . For example, in some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more alterations in the light absorbance associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more absorbance patterns that occur during one or more changes in the conformation of a projection surface  500 . 
     At operation  2010 , the receiving operation  1910  may include receiving one or more signals that include information associated with one or more changes in light transmission of the one or more projection surfaces. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in light transmission of the one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more changes in light transmission of the one or more projection surfaces  500 . For example, in some embodiments, one or more projection surfaces  500  may exhibit changes in polarization upon undergoing changes in conformation. Accordingly, in some embodiments, one or more changes in light transmission may be detected that indicate one or more changes in conformation of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more changes in light transmission with one or more cameras  276 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more changes in light transmission with one or more light sensors  268 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more changes in light transmission that indicate one or more changes in conformation of one or more projection surfaces  500 . 
       FIG. 21  illustrates alternative embodiments of the example operational flow  1900  of  FIG. 19 .  FIG. 21  illustrates example embodiments where the receiving operation  1910  may include at least one additional operation. Additional operations may include an operation  2102 , operation  2104 , operation  2106 , operation  2108 , and/or operation  2110 . 
     At operation  2102 , the receiving operation  1910  may include receiving one or more signals that include information associated with one or more changes in illumination associated with the one or more projection surfaces. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in illumination associated with the one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more changes in the illumination associated with one or more projection surfaces  500 . For example, in some embodiments, projector receivers  792  may receive one or more signals  400  that include information associated with light that is reflected off one or more projection surfaces  500  to determine if the projection surface  500  has undergone a change in position from an area having a certain flux of light to a second area having a different flux of light. 
     At operation  2104 , the receiving operation  1910  may include receiving one or more signals that include information associated with one or more changes in motion associated with the one or more projection surfaces. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in motion associated with the one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more changes in motion associated with the one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detecting changes in motion associated with one or more fiducials associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detecting changes in motion associated with one or more calibration images associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detecting changes in motion of one or more objects associated with one or more projection surfaces  500 . Examples of such objects include, but are not limited to, pencils, pens, styluses, fingers, and the like (e.g., U.S. Pat. Nos. 6,266,048; 6,614,422; 6,710,770; 6,750,849; 6,798,401; 7,016,711; 7,071,924; 7,151,530; 7,290,885; 7,173,605; 7,242,388; 7,248,151; 7,305,368). 
     At operation  2106 , the receiving operation  1910  may include receiving one or more signals that include information associated with one or more changes in one or more conformations of the one or more projection surfaces. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more conformations of the one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more changes in one or more conformations associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more changes in the position of one or more fiducials that are associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more changes in the position of one or more calibration images associated with one or more projection surfaces  500 . 
     At operation  2108 , the receiving operation  1910  may include receiving one or more signals that include information associated with one or more marks associated with the one or more projection surfaces. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more marks associated with the one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more marks associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more marks that are fluorescent. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more marks that are phosphorescent. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more marks that are magnetic. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of writing on a projection surface  500  (e.g., U.S. Pat. No. 7,355,583). 
     At operation  2110 , the receiving operation  1910  may include receiving one or more signals that include information associated with one or more changes in one or more marks associated with the one or more projection surfaces. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more marks associated with the one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detecting one or more changes in one or more marks associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with determining one or more changes in one or more marks through comparing a first set of marks to a second set of marks and then determining differences that occur between the first and second set of marks. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more marks that are fluorescent. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more marks that are phosphorescent. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of one or more marks that are magnetic. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with detection of writing that occurs on a projection surface  500  (e.g., U.S. Pat. No. 7,355,583). 
       FIG. 22  illustrates alternative embodiments of the example operational flow  1900  of  FIG. 19 .  FIG. 22  illustrates example embodiments where the receiving operation  1910  may include at least one additional operation. Additional operations may include an operation  2202 , operation  2204 , operation  2206 , operation  2208 , and/or operation  2210 . 
     At operation  2202 , the receiving operation  1910  may include receiving one or more signals that include information associated with content that is to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with content that is to be projected. For example, in some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing sensor memory  228  to obtain content that is to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing projector memory  764  to obtain content that is to be projected. 
     At operation  2204 , the receiving operation  1910  may include receiving one or more signals that include information associated with selecting content that is to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with selecting content that is to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with selecting content that is to be projected from sensor memory  228 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with selecting content that is to be projected in response to user input. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with selecting content that is to be projected in response to one or more sensors  260 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with selecting content that is to be projected in response to one or more sensors  260  that detect one or more persons. 
     At operation  2206 , the receiving operation  1910  may include receiving one or more signals that include information associated with content that is not to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with content that is not to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing sensor memory  228  to obtain information associated with content that is not to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing projector memory  764  to obtain information associated with content that is not to be projected. 
     At operation  2208 , the receiving operation  1910  may include receiving one or more signals that include information associated with selecting content that is not to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with selecting content that is not to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing sensor memory  228  to select content that is not to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing projector memory  764  to select content that is not to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with selecting content that is not to be projected in response to user input. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with selecting content that is not to be projected in response to one or more sensors  260 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with selecting content that is not to be projected in response to one or more sensors  260  that detect one or more persons. 
     At operation  2210 , the receiving operation  1910  may include receiving one or more signals that include information associated with selecting one or more projection attributes associated with the one or more projection surfaces. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with selecting one or more projection attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing sensor memory  228  to determine one or more projection attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing projector memory  764  to determine one or more projection attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with determining one or more projection attributes associated with one or more projection surfaces  500 . Examples of such projection attributes associated with one or more projection surfaces  500  include, but are not limited to, reflectivity, light absorbance, light reflection, light transmission, light emission, ability to record projected content, ability to transmit information associated with projected content, and the like. Accordingly, in some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include one or more instructions for one or more projectors  760  to project in response to one or more attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include one or more instructions for one or more projectors  760  to project content that is to be printed if a projection surface  500  is able to facilitate printing of content that is projected onto the projection surface  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include one or more instructions for one or more projectors  760  to not project content that is confidential if a projection surface  500  is able to facilitate printing of content that is projected onto the projection surface  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include one or more instructions for one or more projectors  760  to project one or more wavelengths of light in response to one or more attributes associated with a projection surface  500 . For example, in some embodiments, a projection surface  500  may be made of material that transmits one or more wavelengths of light preferentially over other wavelengths of light. Accordingly, in some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include one or more instructions for one or more projectors  760  to project one or more wavelengths of light that are preferentially transmitted by a projection surface  500 . 
       FIG. 23  illustrates alternative embodiments of the example operational flow  1900  of  FIG. 19 .  FIG. 23  illustrates example embodiments where the receiving operation  1910  may include at least one additional operation. Additional operations may include an operation  2302 , and/or operation  2304 . 
     At operation  2302 , the receiving operation  1910  may include receiving one or more signals that include information associated with obtaining information associated with one or more capture capabilities associated with the one or more projection surfaces. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with obtaining information associated with one or more capture capabilities associated with the one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing sensor memory  228  to determine one or more capture capabilities associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing projector memory  764  to determine one or more capture capabilities associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with determining one or more capture capabilities associated with one or more projection surfaces  500 . Examples of capture capabilities include, but are not limited to, printing of projected content, transmission of one or more signals  400  that include information associated with projected content, and the like. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include instructions for controlling one or more projectors  760  in response to one or more capture capabilities associated with one or more projection surfaces  500 . For example, in some embodiments, one or more projector receivers  792  may receive one or more signals  400  that instruct one or more projectors  760  to project content that is to be printed onto one or more projection surfaces  500  that are capable of facilitating printing of the projected content. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that instruct one or more projectors  760  not to project content that is confidential onto one or more projection surfaces  500  that are capable of facilitating printing of the projected content. 
     At operation  2304 , the receiving operation  1910  may include receiving one or more signals that include information associated with one or more recording attributes associated with the one or more projection surfaces. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more recording attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing sensor memory  228  to determine one or more recording attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing projector memory  764  to determine one or more recording attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with determining one or more recording attributes associated with one or more projection surfaces  500 . Examples of recording attributes include, but are not limited to, permanent recordation of projected content, storage of projected content into memory, and the like. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include one or more instructions for controlling one or more projectors  760  in response to one or more recording attributes associated with one or more projection surfaces  500 . For example, in some embodiments, one or more projector receivers  792  may receive one or more signals  400  that instruct one or more projectors  760  to project content that is to be saved into memory onto one or more projection surfaces  500  that are capable of recording projected content into memory. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that instruct one or more projector units  700  not to project content that is confidential onto one or more projection surfaces  500  that are capable of saving the projected content into memory. 
       FIG. 24  illustrates alternative embodiments of the example operational flow  1900  of  FIG. 19 .  FIG. 24  illustrates example embodiments where the projecting operation  1920  may include at least one additional operation. Additional operations may include an operation  2402 , operation  2404 , operation  2406 , operation  2408 , and/or operation  2410 . 
     At operation  2402 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with detecting one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with detecting one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with detecting light intensity associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with detecting reflectivity associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with detecting light absorbance associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with detecting light transmission associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with detecting motion associated with one or more projection surfaces  500 . For example, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with detecting movement of one or more projection surfaces  500  from one area to another. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with detecting changes in conformation of the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with detecting the position of one or more fiducials associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with detecting one or more changes in position of one or more fiducials associated with the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with detecting one or more changes in the position of one or more calibration images associated with the one or more projection surfaces  500 . 
     At operation  2404 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more sensors that detect one or more changes in one or more features of one or more projection surfaces  500 . For example, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that indicate that a projection surface  500  has been folded in half. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that indicate that a projection surface  500  has been moved. 
     At operation  2406 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with one or more changes in reflectivity of the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in reflectivity of the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  from one or more light sensors  268  that are configured to detect changes in the reflectivity of one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with correlating changes in reflectivity with one or more changes in the conformation associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with correlating changes in reflectivity with one or more changes in the position of one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with correlating changes in reflectivity of one or more calibration images with one or more changes in the conformation of one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with correlating changes in reflectivity of one or more fiducials with one or more changes in the conformation of one or more projection surfaces  500 . 
     In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with correlating changes in reflectivity of one or more calibration images with one or more changes in the conformation of one or more projection surfaces  500 . 
     At operation  2408 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with one or more changes in light absorbance of the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in light absorbance of the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with changes in the polarization of light that are facilitated by one or more projection surfaces  500  undergoing one or more changes in conformation. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in light absorbance that occur upon one or more projection surfaces being illuminated. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with changes in an absorbance pattern that occurs during a change in conformation of a projection surface  500 . 
     At operation  2410 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with one or more changes in light transmission of the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in light transmission of the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in polarization that occur when one or more projection surfaces undergo one or more changes in conformation. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in light transmission that indicate one or more changes in the conformation of one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more alterations in the light transmission associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in light transmission by one or more projection surfaces upon being illuminated. 
       FIG. 25  illustrates alternative embodiments of the example operational flow  1900  of  FIG. 19 .  FIG. 25  illustrates example embodiments where the projecting operation  1920  may include at least one additional operation. Additional operations may include an operation  2502 , operation  2504 , operation  2506 , operation  2508 , and/or operation  2510 . 
     At operation  2502 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with one or more changes in illumination associated with the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in illumination associated with the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with light that is reflected from one or more projection surfaces  500  to determine if the projection surface  500  has undergone a change in position from an area having a certain flux of light to a second area having a different flux of light. 
     At operation  2504 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with one or more changes in motion associated with the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in motion associated with the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more fiducials associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with changes in motion associated with one or more calibration images that are associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with the motion of one or more objects associated with one or more projection surfaces  500 . Examples of such objects include, but are not limited to, pencils, pens, styluses, fingers, and the like (e.g., U.S. Pat. Nos. 6,266,048; 6,614,422; 6,710,770; 6,750,849; 6,798,401; 7,016,711; 7,071,924; 7,151,530; 7,290,885; 7,173,605; 7,242,388; 7,248,151; 7,305,368). 
     At operation  2506 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with one or more changes in one or more conformations of the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more conformations of the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in the position of one or more fiducials associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in the position of one or more fiducials associated with one or more projection surfaces  500  that may be used to determine one or more changes in the conformation of the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in the position of one or more calibration images associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in the position of one or more calibration images associated with one or more projection surfaces  500  that may be used to determine one or more changes in the conformation of the one or more projection surfaces  500 . 
     At operation  2508 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with one or more marks associated with the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more marks associated with the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more marks that are fluorescent. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with marks that are phosphorescent. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more marks that are magnetic. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with writing on a projection surface  500  (e.g., U.S. Pat. No. 7,355,583). In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with ink (e.g., fluorescent ink, magnetic ink, phosphorescent ink, etc.). 
     At operation  2510 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with one or more changes in one or more marks associated with the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more marks associated with the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with comparing a first set of marks to a second set of marks and then determining differences that occur between the first and second set of marks. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more marks that are fluorescent. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more marks that are phosphorescent. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more marks that are magnetic. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with writing that occurs on a projection surface  500  (e.g., U.S. Pat. No. 7,355,583). In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with ink (e.g., fluorescent ink, magnetic ink, phosphorescent ink, etc.). 
       FIG. 26  illustrates alternative embodiments of the example operational flow  1900  of  FIG. 19 .  FIG. 26  illustrates example embodiments where the projecting operation  1920  may include at least one additional operation. Additional operations may include an operation  2602 , operation  2604 , operation  2606 , operation  2608 , and/or operation  2610 . 
     At operation  2602 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with content that is to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with content that is to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing sensor memory  228  to obtain content that is to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing projector memory  764  to obtain content that is to be projected. 
     At operation  2604 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with selecting content that is to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting content that is to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting content that is to be projected from sensor memory  228 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting content that is to be projected from projector memory  764 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting content that is to be projected in response to user input. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting content that is to be projected in response to one or more sensors  260 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting content that is to be projected in response to one or more sensors  260  that detect one or more persons. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting content that is suitable for children if a child is detected. 
     At operation  2606 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with content that is not to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with content that is not to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing sensor memory  228  to obtain information associated with content that is not to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing projector memory  764  to obtain information associated with content that is not to be projected. 
     At operation  2608 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with selecting content that is not to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting content that is not to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing sensor memory  228  to select content that is not to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing projector memory  764  to select content that is not to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting content that is not to be projected in response to user input. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting content that is not to be projected in response to one or more sensors  260 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting content that is not to be projected in response to one or more sensors  260  that detect one or more persons. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting content that is not suitable for children if a child is detected. 
     At operation  2610 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with selecting one or more projection attributes associated with the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting one or more projection attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting one or more projection attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing sensor memory  228  to determine one or more projection attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing projector memory  764  to determine one or more projection attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more sensors  260  that are configured to determine one or more projection attributes associated with one or more projection surfaces  500 . Numerous types of projection attributes may be associated with one or more projection surfaces  500 . Such projection attributes may include, but are not limited to, reflectivity, light absorbance, light reflection, light transmission, light emission, ability to record projected content, ability to transmit information associated with projected content, and the like. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with content that is to be printed. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  not to project in response to receiving one or more signals  400  that include information associated with content that is confidential. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project one or more wavelengths of light in response to receiving one or more signals  400  associated with one or more attributes associated with a projection surface  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project one or more wavelengths of light in response to receiving one or more signals  400  associated with one or more wavelengths of light that are preferentially transmitted by a projection surface  500 . Accordingly, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that are associated with one or more projection attributes associated with one or more projection surfaces  500 . 
       FIG. 27  illustrates alternative embodiments of the example operational flow  1900  of  FIG. 19 .  FIG. 27  illustrates example embodiments where the projecting operation  1920  may include at least one additional operation. Additional operations may include an operation  2702 , operation  2704 , operation  2706 , operation  2708 , and/or operation  2710 . 
     At operation  2702 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with obtaining information associated with one or more capture capabilities associated with the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with obtaining information associated with one or more capture capabilities associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing sensor memory  228  to determine one or more capture capabilities associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing projector memory  764  to determine one or more capture capabilities associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more capture capabilities associated with one or more projection surfaces  500 . Examples of capture capabilities include, but are not limited to, printing of projected content, transmission of one or more signals  400  that include information associated with projected content, and the like. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with controlling one or more projector units  700  in response to one or more capture capabilities associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with content that is to be projected onto one or more projection surfaces  500  that are capable of facilitating printing of the projected content. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include instructions not to project content that is confidential onto one or more projection surfaces  500  that are capable of facilitating printing of the projected content. 
     At operation  2704 , the projecting operation  1920  may include projecting in response to receiving one or more signals that include information associated with one or more recording attributes associated with the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more recording attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing sensor memory  228  to determine one or more recording attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing projector memory  764  to determine one or more recording attributes associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more recording attributes associated with one or more projection surfaces  500 . Examples of recording attributes include, but are not limited to, permanent recordation of projected content, storage of projected content into memory, and the like. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project content in response to receiving one or more signals  400  that include information associated with saving the content that is projected onto one or more projection surfaces  500  into memory. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project content in response to receiving one or more signals  400  that include information associated with not projecting content that is confidential onto one or more projection surfaces  500  that are capable of saving the projected content into memory. 
     At operation  2706 , the projecting operation  1920  may include increasing light output from one or more projectors. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with increasing light output from one or more projectors. For example, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with light flux on one or more projection surfaces  500 . 
     At operation  2708 , the projecting operation  1920  may include decreasing light output from one or more projectors. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with decreasing light output from one or more projectors. For example, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with light flux on one or more projection surfaces  500 . In some embodiments, light output from one or more projectors  760  may be reduced to reduce projector power consumption. 
     At operation  2710 , the projecting operation  1920  may include selecting one or more wavelengths of light that are projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting one or more wavelengths of light that are projected. For example, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting one or more wavelengths of ultraviolet light that will be projected by one or more projectors  760 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting one or more wavelengths of visible light that will be projected by one or more projectors  760 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting one or more wavelengths of infrared light that will be projected by one or more projectors  760 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting one or more wavelengths of light for projection by one or more projectors  760  in response to one or more attributes associated with one or more projection surfaces  500 . 
       FIG. 28  illustrates alternative embodiments of the example operational flow  1900  of  FIG. 19 .  FIG. 28  illustrates example embodiments where the projecting operation  1920  may include at least one additional operation. Additional operations may include an operation  2802 , operation  2804 , operation  2806 , operation  2808 , and/or operation  2810 . 
     At operation  2802 , the projecting operation  1920  may include selecting one or more wavelengths of light that are not projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with selecting one or more wavelengths of light that are not projected. For example, in some embodiments, one or more projector control units  740  may be instructed to adjust the quality of one or more projected images by selecting one or more wavelengths of light that will not be projected. 
     At operation  2804 , the projecting operation  1920  may include directing one or more portions of one or more projection outputs onto the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with directing one or more portions of one or more projection outputs onto one or more projection surfaces  500 . For example, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with directing projection output onto a first projection surface  500  that adjoins a first person and directing projection output onto a second projection surface  500  that adjoins a second person. Accordingly, in some embodiments, a projector  760  may be instructed to project content to a projection surface  500  in a manner that is specific to an individual person. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to direct one or more portions of a projection output onto two or more projection surfaces  500 . For example, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project content onto two or more projection surfaces  500  that are positioned in different areas of a room. 
     At operation  2806 , the projecting operation  1920  may include directing one or more portions of one or more projection outputs onto a first projection surface and directing one or more portions of one or more projection outputs onto a second projection surface. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with directing one or more portions of one or more projection outputs onto a first projection surface and directing one or more portions of one or more projection outputs onto a second projection surface  500 . For example, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to direct projection output onto a first projection surface  500  that adjoins a first person and direct projection output onto a second projection surface  500  that adjoins a second person. Accordingly, in some embodiments, a projector  760  may be instructed to project content to a projection surface  500  in a manner that is specific to an individual person. 
     At operation  2808 , the projecting operation  1920  may include directing one or more projection outputs onto one or more moving projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with directing one or more projection outputs onto one or more moving projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to direct one or more projection outputs onto one or more moving projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with movement of one or more projection surfaces  500 . For example, in some embodiments, a tablet that is a projection surface  500  may be slid across a table and one or more projectors  760  may be instructed to project output onto the tablet as it moves. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project output in a manner that is dependent upon the position of one or more projection surfaces  500 . For example, in some embodiments, one or more projectors  760  may be instructed to project a first set of output when a projection surface  500  is in a first position and be instructed to project a second set of output when a projection surface  500  is in a second position. 
     At operation  2810 , the projecting operation  1920  may include directing one or more portions of one or more projection outputs onto one or more moving projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with directing one or more portions of one or more projection outputs onto one or more moving projection surfaces  500 . In some embodiments, one or more projector control units  740  may receive information associated with movement of one or more projection surfaces  500  and instruct one or more projectors  760  in response to the information. For example, in some embodiments, a tablet that is a projection surface  500  may be slid across a table and one or more projectors  760  may be directed to project a portion of output onto the tablet as it moves. In some embodiments, one or more projector control units  740  may project portions of output in a manner that is dependent upon the position of one or more projection surfaces  500 . For example, in some embodiments, one or more projectors  760  may be directed to project a first portion of output when a projection surface  500  is in a first position and be directed to project a second portion of output when a projection surface  500  is in a second position. 
       FIG. 29  illustrates alternative embodiments of the example operational flow  1900  of  FIG. 19 .  FIG. 29  illustrates example embodiments where the projecting operation  1920  may include at least one additional operation. Additional operations may include an operation  2902 , operation  2904 , operation  2906 , operation  2908 , and/or operation  2910 . 
     At operation  2902 , the projecting operation  1920  may include directing one or more portions of one or more projection outputs onto one or more moving projection surfaces and directing one or more portions of one or more projection outputs onto one or more stationary projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with directing one or more portions of one or more projection outputs onto one or more moving projection surfaces  500  and directing one or more portions of one or more projection outputs onto one or more stationary projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to direct one or more portions of one or more projection outputs onto one or more moving projection surfaces  500  and directing one or more portions of one or more projection outputs onto one or more stationary projection surfaces  500 . For example, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to direct one or more portions of one or more projection outputs onto a projection surface  500  associated with a first person and direct one or more portions of one or more projection outputs onto a second projection surface  500  that is being slid toward a second person. 
     At operation  2904 , the projecting operation  1920  may include projecting one or more projection outputs in response to one or more changes in one or more conformations of one or more projected surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with projecting one or more projection outputs in response to one or more changes in one or more conformations of one or more projected surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to one or more changes in one or more conformations of one or more projected surfaces. For example, in some embodiments, one or more projector control units  740  may project one set of content onto a tablet that is a projection surface  500  when it is in a horizontal position and project a different set of content onto the tablet when it is placed into a vertical position. In some embodiments, one or more projector control units  740  may project one set of content onto a tablet that is a projection surface  500  when it is unfolded and a separate set of content when the tablet is folded in half. 
     At operation  2906 , the projecting operation  1920  may include projecting one or more projection outputs that are selected in response to motion associated with the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with projecting one or more projection outputs that are selected in response to motion associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project one or more projection outputs that are selected in response to motion associated with one or more projection surfaces  500 . For example, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project one or more wavelengths of light in response to motion associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to adjust the intensity of output in response to motion associated with one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to adjust the content that is output in response to motion associated with one or more projection surfaces  500 . 
     At operation  2908 , the projecting operation  1920  may include projecting one or more projection outputs that are selected in response to one or more conformations of the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with projecting one or more projection outputs that are selected in response to one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project one or more projection outputs that are selected in response to one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project content in response to one or more conformations of one or more projection surfaces  500 . For example, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project confidential information when a projection surface  500  is in a first conformation and not to project the confidential information when the projection surface  500  is in a second conformation. 
     At operation  2910 , the projecting operation  1920  may include projecting one or more projection outputs that are selected in response to one or more marks associated with the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with projecting one or more projection outputs that are selected in response to one or more marks associated with the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project one or more projection outputs that are selected in response to one or more marks associated with the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project content in a manner that depends upon the presence of one or more marks on a projection surface  500 . For example, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project confidential information if one or more marks indicating confidential information are present on one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  not to project confidential information if one or more marks indicating confidential information are absent from one or more projection surfaces  500 . 
       FIG. 30  illustrates alternative embodiments of the example operational flow  1900  of  FIG. 19 .  FIG. 30  illustrates example embodiments where the projecting operation  1920  may include at least one additional operation. Additional operations may include an operation  3002 . 
     At operation  3002 , the projecting operation  1920  may include projecting one or more projection outputs that are selected in response to one or more changes in one or more marks associated with the one or more projection surfaces. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with projecting one or more projection outputs that are selected in response to one or more changes in one or more marks associated with the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project one or more projection outputs that are selected in response to one or more changes in one or more marks associated with the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project content in a manner that depends upon one or more changes in one or more marks on a projection surface  500 . For example, in some embodiments, one or more projector control units  740  may instruct one or more projectors  760  not to project confidential information if one or more marks indicating confidential information are absent from one or more projection surfaces  500  but project the confidential information in response to placement of one or more marks indicating confidential material onto the one or more projection surfaces  500 . 
     In  FIG. 31  and in following figures that include various examples of operations used during performance of the method, discussion and explanation may be provided with respect to any one or combination of the above-described examples of  FIG. 1 , and/or with respect to other examples and contexts. In some embodiments, modules  1910  and  1920  of  FIG. 19  may correspond to modules  3110  and  3120  of  FIG. 31 . However, it should be understood that the operations may be executed in a number of other environments and contexts, and/or modified versions of  FIG. 1 . Also, although the various operations are presented in the sequence(s) illustrated, it should be understood that the various operations may be performed in other orders than those which are illustrated, or may be performed concurrently. 
     After a start operation, the operational flow  3100  includes a receiving operation  3110  involving receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more projector units  700  may facilitate reception of one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more positions of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more conformations and one or more positions of one or more projection surfaces  500 . 
     After a start operation, the operational flow  3100  includes a projecting operation  3120  involving projecting in response to the receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more projector units  700  may facilitate projection in response to receiving one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projectors  760  may project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projectors  760  may project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more projectors  760  may project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more positions of one or more projection surfaces  500 . In some embodiments, one or more projectors  760  may project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more conformations and one or more positions of one or more projection surfaces  500 . 
     After a start operation, the operational flow  3100  includes a receiving operation  3130  involving receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In some embodiments, one or more projector units  700  may facilitate reception of one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in conformation of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in position of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more marks associated with one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more marks associated with one or more projection surfaces  500  with one or more commands. 
       FIG. 32  illustrates alternative embodiments of the example operational flow  3100  of  FIG. 31 .  FIG. 32  illustrates example embodiments where the receiving operation  3130  may include at least one additional operation. Additional operations may include an operation  3202 , operation  3204 , operation  3206 , operation  3208 , and/or operation  3210 . 
     At operation  3202 , the receiving operation  3130  may include receiving one or more signals that include information associated with the coordinating one or more changes in one or more features of one or more projection surfaces with one or more projection commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with the coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more projection commands. For example, in some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in light transmission by one or more projection surfaces  500  with one or more projection commands to increase or decrease the intensity of light projected by one or more projectors  760  onto the one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in the light absorbance of one or more projection surfaces  500  with one or more projection commands to alter the intensity of one or more wavelengths of light projected by one or more projectors  760  onto the one or more projection surfaces  500 . 
     At operation  3204 , the receiving operation  3130  may include receiving one or more signals that include information associated with the coordinating one or more changes in motion associated with the one or more projection surfaces with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in motion associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to select content and project the content. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to select content that is not to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to project content onto one or more projection surfaces  500  that are capable of recording the content. 
     At operation  3206 , the receiving operation  3130  may include receiving one or more signals that include information associated with the coordinating one or more changes in one or more conformations of the one or more projection surfaces with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more conformations of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to select content and project the content. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to select content that is not to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to project content onto one or more projection surfaces  500  that are capable of recording the content. 
     At operation  3208 , the receiving operation  3130  may include receiving one or more signals that include information associated with the coordinating one or more marks associated with the one or more projection surfaces with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more marks associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content that is not to be projected. For example, in some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more marks associated with confidential information with one or more commands to project the confidential information associated with the one or more marks. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more user  600  created marks placed onto one or more projection surfaces  500  with one or more commands. 
     At operation  3210 , the receiving operation  3130  may include receiving one or more signals that include information associated with the coordinating one or more changes in one or more marks associated with the one or more projection surfaces with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more marks associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content that is not to be projected. For example, in some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating elimination (e.g., erasure) of one or more marks with one or more commands. 
       FIG. 33  illustrates alternative embodiments of the example operational flow  3100  of  FIG. 31 .  FIG. 33  illustrates example embodiments where the receiving operation  3130  may include at least one additional operation. Additional operations may include an operation  3302 , operation  3304 , operation  3306 , operation  3308 , and/or operation  3310 . 
     At operation  3302 , the receiving operation  3130  may include receiving one or more signals that include information associated with accessing one or more databases. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with the accessing one or more databases. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing one or more databases that include confidential material in response to one or more marks associated with confidential information being placed onto one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing one or more databases in response to one or more changes in the conformation of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing one or more databases in response to one or more specified changes in the conformation of a projection surface  500 . 
     At operation  3304 , the receiving operation  3130  may include receiving one or more signals that include information associated with accessing one or more lookup tables. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with the accessing one or more lookup tables. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more lookup tables. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more specified changes in conformation of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing one or more lookup tables in response to one or more changes in the conformation of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing one or more lookup tables in response to one or more changes in the position of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with accessing one or more lookup tables in response to one or more motions associated with one or more projection surfaces  500 . 
     At operation  3306 , the receiving operation  3130  may include receiving one or more signals that include information associated with accessing one or more content packets. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with the accessing one or more content packets  402 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more content packets  402 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more content packets that include specified information. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more specified changes in conformation with specified information. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more specified changes in conformation of one or more projection surfaces  500  with one or more commands to access one or more specified content packets  402 . 
     At operation  3308 , the receiving operation  3130  may include receiving one or more signals that include information associated with the coordinating the one or more changes in one or more features of one or more projection surfaces with one or more commands to select content for projection. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more conformations of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more positions of one or more projection surfaces  500  with one or more commands to select content for projection. 
     At operation  3310 , the receiving operation  3130  may include receiving one or more signals that include information associated with the coordinating the one or more changes in one or more features of one or more projection surfaces with one or more commands to select content that is not for projection. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to select content that is not for projection. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more conformations of one or more projection surfaces  500  with one or more commands to select content that is not for projection. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more positions of one or more projection surfaces  500  with one or more commands to select content that is not for projection. 
       FIG. 34  illustrates alternative embodiments of the example operational flow  3100  of  FIG. 31 .  FIG. 34  illustrates example embodiments where the receiving operation  3130  may include at least one additional operation. Additional operations may include an operation  3402  and/or operation  3404 . 
     At operation  3402 , the receiving operation  3130  may include receiving one or more signals that include information associated with the coordinating one or more recording attributes associated with one or more projection surfaces with content that is to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is to be recorded into memory. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is to be printed. 
     At operation  3404 , the receiving operation  3130  may include receiving one or more signals that include information associated with coordinating one or more recording attributes associated with the one or more projection surfaces with content that is not to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is not to be projected. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is not to be recorded into memory. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is not to be printed. 
     In  FIG. 35  and in following figures that include various examples of operations used during performance of the method, discussion and explanation may be provided with respect to any one or combination of the above-described examples of  FIG. 1 , and/or with respect to other examples and contexts. In some embodiments, modules  3110 ,  3120 , and  3130  of  FIG. 31  may correspond to modules  3510 ,  3520  and  3530  of  FIG. 35 . However, it should be understood that the operations may be executed in a number of other environments and contexts, and/or modified versions of  FIG. 1 . Also, although the various operations are presented in the sequence(s) illustrated, it should be understood that the various operations may be performed in other orders than those which are illustrated, or may be performed concurrently. 
     After a start operation, the operational flow  3500  includes a receiving operation  3510  involving receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more projector units  700  may facilitate reception of one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more positions of one or more projection surfaces  500 . In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with one or more changes in one or more conformations and one or more positions of one or more projection surfaces  500 . 
     After a start operation, the operational flow  3500  includes a projecting operation  3520  involving projecting in response to the receiving one or more signals that include information associated with one or more changes in one or more features of one or more projection surfaces. In some embodiments, one or more projector units  700  may facilitate projection in response to receiving one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projectors  760  may project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . In some embodiments, one or more projectors  760  may project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more conformations of one or more projection surfaces  500 . In some embodiments, one or more projectors  760  may project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more positions of one or more projection surfaces  500 . In some embodiments, one or more projectors  760  may project in response to receiving one or more signals  400  that include information associated with one or more changes in one or more conformations and one or more positions of one or more projection surfaces  500 . 
     After a start operation, the operational flow  3500  includes a receiving operation  3530  involving receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In some embodiments, one or more projector units  700  may facilitate reception of one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in conformation of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in position of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more marks associated with one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector receivers  792  may receive one or more signals  400  that include information associated with coordinating one or more changes in one or more marks associated with one or more projection surfaces  500  with one or more commands. 
     After a start operation, the operational flow  3500  includes a projecting operation  3540  involving projecting in response to the receiving one or more signals that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in conformation of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in position of one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more marks associated with one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more marks associated with one or more projection surfaces  500  with one or more commands. 
       FIG. 36  illustrates alternative embodiments of the example operational flow  3500  of  FIG. 35 .  FIG. 36  illustrates example embodiments where the projecting operation  3540  may include at least one additional operation. Additional operations may include an operation  3602 , operation  3604 , operation  3606 , and/or operation  3608 . 
     At operation  3602 , the projecting operation  3540  may include projecting in response to receiving one or more signals that include information associated with the coordinating one or more changes in one or more features of one or more projection surfaces with one or more projection commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more projection commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in light transmission by one or more projection surfaces  500  with one or more projection commands to increase or decrease the intensity of light projected by one or more projectors  760  onto the one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in the light absorbance of one or more projection surfaces  500  with one or more projection commands to alter the intensity of one or more wavelengths of light projected by one or more projectors  760  onto the one or more projection surfaces  500 . 
     At operation  3604 , the projecting operation  3540  may include projecting in response to receiving one or more signals that include information associated with the coordinating one or more changes in motion associated with the one or more projection surfaces with one or more commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in motion associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to select content and project the content. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to select content that is not to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in the motion of one or more projection surfaces  500  with one or more commands to project content onto one or more projection surfaces  500  that are capable of recording the content. 
     At operation  3606 , the projecting operation  3540  may include projecting in response to receiving one or more signals that include information associated with the coordinating one or more changes in one or more conformations of the one or more projection surfaces with one or more commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more conformations of the one or more projection surfaces with one or more commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to select content and project the content. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to select content that is not to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in the conformation of one or more projection surfaces  500  with one or more commands to project content onto one or more projection surfaces  500  that are capable of recording the content. 
     At operation  3608 , the projecting operation  3540  may include projecting in response to receiving one or more signals that include information associated with the coordinating one or more marks associated with the one or more projection surfaces with one or more commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more marks associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content that is not to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more marks associated with confidential information with one or more commands to project the confidential information associated with the one or more marks. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more user  600  created marks placed onto one or more projection surfaces  500  with one or more commands. 
       FIG. 37  illustrates alternative embodiments of the example operational flow  3500  of  FIG. 35 .  FIG. 37  illustrates example embodiments where the projecting operation  3540  may include at least one additional operation. Additional operations may include an operation  3702 , operation  3704 , operation  3706 , and/or operation  3708 . 
     At operation  3702 , the projecting operation  3540  may include projecting in response to receiving one or more signals that include information associated with the coordinating one or more changes in one or more marks associated with the one or more projection surfaces with one or more commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more marks associated with the one or more projection surfaces  500  with one or more commands. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more marks associated with the one or more projection surfaces  500  with one or more commands to select content that is not to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating the elimination (e.g., erasure) of one or more marks with one or more commands. 
     At operation  3704 , the projecting operation  3540  may include projecting in response to receiving one or more signals that include information associated with accessing one or more databases. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing one or more databases. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing one or more databases that include confidential material. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing one or more databases that include confidential material in response to one or more marks associated with confidential information being placed onto one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing one or more databases in response to one or more changes in the conformation of one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with one or more databases in response to one or more specified changes in the conformation of a projection surface  500 . 
     At operation  3706 , the projecting operation  3540  may include projecting in response to receiving one or more signals that include information associated with accessing one or more lookup tables. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing one or more lookup tables. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more lookup tables. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more specified changes in conformation of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing one or more lookup tables in response to one or more changes in the conformation of one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing one or more lookup tables in response to one or more changes in the position of one or more projection surfaces  500 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing one or more lookup tables in response to one or more motions associated with one or more projection surfaces  500 . 
     At operation  3708 , the projecting operation  3540  may include projecting in response to receiving one or more signals that include information associated with accessing one or more content packets. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with accessing one or more content packets  402 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more content packets  402 . In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to access one or more content packets that include specified information. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more specified changes in conformation with specified information. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more specified changes in conformation of one or more projection surfaces  500  with one or more commands to access one or more specified content packets  402 . 
       FIG. 38  illustrates alternative embodiments of the example operational flow  3500  of  FIG. 35 .  FIG. 38  illustrates example embodiments where the projecting operation  3540  may include at least one additional operation. Additional operations may include an operation  3802 , operation  3804 , operation  3806 , and/or operation  3808 . 
     At operation  3802 , the projecting operation  3540  may include projecting in response to receiving one or more signals that include information associated with the coordinating the one or more changes in one or more features of one or more projection surfaces with one or more commands to select content for projection. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating the one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more conformations of one or more projection surfaces  500  with one or more commands to select content for projection. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more positions of one or more projection surfaces  500  with one or more commands to select content for projection. 
     At operation  3804 , the projecting operation  3540  may include projecting in response to receiving one or more signals that include information associated with the coordinating the one or more changes in one or more features of one or more projection surfaces with one or more commands to select content that is not for projection. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating the one or more changes in one or more features of one or more projection surfaces  500  with one or more commands to select content that is not for projection. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more conformations of one or more projection surfaces  500  with one or more commands to select content that is not for projection. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  406  that include information associated with coordinating one or more changes in one or more positions of one or more projection surfaces  500  with one or more commands to select content that is not for projection. 
     At operation  3806 , the projecting operation  3540  may include projecting in response to receiving one or more signals that include information associated with the coordinating one or more recording attributes associated with one or more projection surfaces with content that is to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is to be recorded into memory. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is to be printed. 
     At operation  3808 , the projecting operation  3540  may include projecting in response to receiving one or more signals that include information associated with the coordinating one or more recording attributes associated with one or more projection surfaces with content that is not to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is not to be projected. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is not to be recorded into memory. In some embodiments, one or more projector control units  740  may instruct one or more projectors  760  to project in response to receiving one or more signals  400  that include information associated with coordinating one or more recording attributes associated with one or more projection surfaces  500  with content that is not to be printed. 
       FIG. 39  illustrates a partial view of a system  3900  that includes a computer program  3904  for executing a computer process on a computing device. An embodiment of system  3900  is provided using a signal-bearing medium  3902  bearing one or more instructions for obtaining information associated with one or more changes in one or more features of one or more projection surfaces  500  and one or more instructions for transmitting one or more signals  400  that include the information associated with one or more changes in one or more features of one or more projection surfaces  500 . The one or more instructions may be, for example, computer executable and/or logic-implemented instructions. In some embodiments, the signal-bearing medium  3902  may include a computer-readable medium  3906 . In some embodiments, the signal-bearing medium  3902  may include a recordable medium  3908 . In some embodiments, the signal-bearing medium  3902  may include a communications medium  3910 . 
       FIG. 40  illustrates a partial view of a system  4000  that includes a computer program  4004  for executing a computer process on a computing device. An embodiment of system  4000  is provided using a signal-bearing medium  4002  bearing one or more instructions for obtaining information associated with one or more changes in one or more features of one or more projection surfaces  500 ; one or more instructions for transmitting one or more signals  400  that include the information associated with one or more changes in one or more features of one or more projection surfaces  500 ; and one or more instructions for coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. The one or more instructions may be, for example, computer executable and/or logic-implemented instructions. In some embodiments, the signal-bearing medium  4002  may include a computer-readable medium  4006 . In some embodiments, the signal-bearing medium  4002  may include a recordable medium  4008 . In some embodiments, the signal-bearing medium  4002  may include a communications medium  4010 . 
       FIG. 41  illustrates a partial view of a system  4100  that includes a computer program  4104  for executing a computer process on a computing device. An embodiment of system  4100  is provided using a signal-bearing medium  4102  bearing one or more instructions for obtaining information associated with one or more changes in one or more features of one or more projection surfaces  500 ; one or more instructions for transmitting one or more signals  400  that include the information associated with one or more changes in one or more features of one or more projection surfaces  500 ; one or more instructions for coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands; and one or more instructions for transmitting one or more signals  400  that include information associated with the coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. The one or more instructions may be, for example, computer executable and/or logic-implemented instructions. In some embodiments, the signal-bearing medium  4102  may include a computer-readable medium  4106 . In some embodiments, the signal-bearing medium  4102  may include a recordable medium  4108 . In some embodiments, the signal-bearing medium  4102  may include a communications medium  4110 . 
       FIG. 42  illustrates a partial view of a system  4200  that includes a computer program  4204  for executing a computer process on a computing device. An embodiment of system  4200  is provided using a signal-bearing medium  4202  bearing one or more instructions for receiving one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500  and one or more instructions for projecting in response to receiving one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 . The one or more instructions may be, for example, computer executable and/or logic-implemented instructions. In some embodiments, the signal-bearing medium  4202  may include a computer-readable medium  4206 . In some embodiments, the signal-bearing medium  4202  may include a recordable medium  4208 . In some embodiments, the signal-bearing medium  4202  may include a communications medium  4210 . 
       FIG. 43  illustrates a partial view of a system  4300  that includes a computer program  4304  for executing a computer process on a computing device. An embodiment of system  4300  is provided using a signal-bearing medium  4302  bearing one or more instructions for receiving one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 ; one or more instructions for projecting in response to receiving one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 ; and one or more instructions for receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. The one or more instructions may be, for example, computer executable and/or logic-implemented instructions. In some embodiments, the signal-bearing medium  4302  may include a computer-readable medium  4306 . In some embodiments, the signal-bearing medium  4302  may include a recordable medium  4308 . In some embodiments, the signal-bearing medium  4302  may include a communications medium  4310 . 
       FIG. 44  illustrates a partial view of a system  4400  that includes a computer program  4404  for executing a computer process on a computing device. An embodiment of system  4400  is provided using a signal-bearing medium  4402  bearing one or more instructions for receiving one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 ; one or more instructions for projecting in response to receiving one or more signals  400  that include information associated with one or more changes in one or more features of one or more projection surfaces  500 ; one or more instructions for receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands; and one or more instructions for projecting in response to receiving one or more signals  400  that include information associated with coordinating one or more changes in one or more features of one or more projection surfaces  500  with one or more commands. The one or more instructions may be, for example, computer executable and/or logic-implemented instructions. In some embodiments, the signal-bearing medium  4402  may include a computer-readable medium  4406 . In some embodiments, the signal-bearing medium  4402  may include a recordable medium  4408 . In some embodiments, the signal-bearing medium  4402  may include a communications medium  4410 . 
     All of the above U.S. patents, U.S. patent application publications, U.S. patent applications, foreign patents, foreign patent applications and non-patent publications referred to in this specification and/or listed in any Application Data Sheet, are incorporated herein by reference, to the extent not inconsistent herewith. 
     Those having skill in the art will recognize that the state of the art has progressed to the point where there is little distinction left between hardware, software, and/or firmware implementations of aspects of systems; the use of hardware, software, and/or firmware is generally (but not always, in that in certain contexts the choice between hardware and software can become significant) a design choice representing cost vs. efficiency tradeoffs. Those having skill in the art will appreciate that there are various vehicles by which processes and/or systems and/or other technologies described herein can be effected (e.g., hardware, software, and/or firmware), and that the preferred vehicle will vary with the context in which the processes and/or systems and/or other technologies are deployed. For example, if an implementer determines that speed and accuracy are paramount, the implementer may opt for a mainly hardware and/or firmware vehicle; alternatively, if flexibility is paramount, the implementer may opt for a mainly software implementation; or, yet again alternatively, the implementer may opt for some combination of hardware, software, and/or firmware. Hence, there are several possible vehicles by which the processes and/or devices and/or other technologies described herein may be effected, none of which is inherently superior to the other in that any vehicle to be utilized is a choice dependent upon the context in which the vehicle will be deployed and the specific concerns (e.g., speed, flexibility, or predictability) of the implementer, any of which may vary. Those skilled in the art will recognize that optical aspects of implementations will typically employ optically-oriented hardware, software, and or firmware. 
     In some implementations described herein, logic and similar implementations may include software or other control structures suitable to operation. Electronic circuitry, for example, may manifest one or more paths of electrical current constructed and arranged to implement various logic functions as described herein. In some implementations, one or more media are configured to bear a device-detectable implementation if such media hold or transmit a special-purpose device instruction set operable to perform as described herein. In some variants, for example, this may manifest as an update or other modification of existing software or firmware, or of gate arrays or other programmable hardware, such as by performing a reception of or a transmission of one or more instructions in relation to one or more operations described herein. Alternatively or additionally, in some variants, an implementation may include special-purpose hardware, software, firmware components, and/or general-purpose components executing or otherwise invoking special-purpose components. Specifications or other implementations may be transmitted by one or more instances of tangible transmission media as described herein, optionally by packet transmission or otherwise by passing through distributed media at various times. 
     Alternatively or additionally, implementations may include executing a special-purpose instruction sequence or otherwise invoking circuitry for enabling, triggering, coordinating, requesting, or otherwise causing one or more occurrences of any functional operations described above. In some variants, operational or other logical descriptions herein may be expressed directly as source code and compiled or otherwise invoked as an executable instruction sequence. In some contexts, for example, C++ or other code sequences can be compiled directly or otherwise implemented in high-level descriptor languages (e.g., a logic-synthesizable language, a hardware description language, a hardware design simulation, and/or other such similar mode(s) of expression). Alternatively or additionally, some or all of the logical expression may be manifested as a Verilog-type hardware description or other circuitry model before physical implementation in hardware, especially for basic operations or timing-critical applications. Those skilled in the art will recognize how to obtain, configure, and optimize suitable transmission or computational elements, material supplies, actuators, or other common structures in light of these teachings. 
     The foregoing detailed description has set forth various embodiments of the devices and/or processes via the use of block diagrams, flowcharts, and/or examples. Insofar as such block diagrams, flowcharts, and/or examples contain one or more functions and/or operations, it will be understood by those within the art that each function and/or operation within such block diagrams, flowcharts, or examples can be implemented, individually and/or collectively, by a wide range of hardware, software, firmware, or virtually any combination thereof. In one embodiment, several portions of the subject matter described herein may be implemented via Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), digital signal processors (DSPs), or other integrated formats. However, those skilled in the art will recognize that some aspects of the embodiments disclosed herein, in whole or in part, can be equivalently implemented in integrated circuits, as one or more computer programs running on one or more computers (e.g., as one or more programs running on one or more computer systems), as one or more programs running on one or more processors (e.g., as one or more programs running on one or more microprocessors), as firmware, or as virtually any combination thereof, and that designing the circuitry and/or writing the code for the software and or firmware would be well within the skill of one of skill in the art in light of this disclosure. In addition, those skilled in the art will appreciate that the mechanisms of the subject matter described herein are capable of being distributed as a program product in a variety of forms, and that an illustrative embodiment of the subject matter described herein applies regardless of the particular type of signal bearing medium used to actually carry out the distribution. Examples of a signal bearing medium include, but are not limited to, the following: a recordable type medium such as a floppy disk, a hard disk drive, a Compact Disc (CD), a Digital Video Disk (DVD), a digital tape, a computer memory, etc.; and a transmission type medium such as a digital and/or an analog communication medium (e.g., a fiber optic cable, a waveguide, a wired communications link, a wireless communication link (e.g., transmitter, receiver, transmission logic, reception logic, etc.), etc.). 
     In a general sense, those skilled in the art will recognize that the various embodiments described herein can be implemented, individually and/or collectively, by various types of electro-mechanical systems having a wide range of electrical components such as hardware, software, firmware, and/or virtually any combination thereof, and a wide range of components that may impart mechanical force or motion such as rigid bodies, spring or torsional bodies, hydraulics, electro-magnetically actuated devices, and/or virtually any combination thereof. Consequently, as used herein “electro-mechanical system” includes, but is not limited to, electrical circuitry operably coupled with a transducer (e.g., an actuator, a motor, a piezoelectric crystal, a Micro Electro Mechanical System (MEMS), etc.), electrical circuitry having at least one discrete electrical circuit, electrical circuitry having at least one integrated circuit, electrical circuitry having at least one application specific integrated circuit, electrical circuitry forming a general purpose computing device configured by a computer program (e.g., a general purpose computer configured by a computer program which at least partially carries out processes and/or devices described herein, or a microprocessor configured by a computer program which at least partially carries out processes and/or devices described herein), electrical circuitry forming a memory device (e.g., forms of memory (e.g., random access, flash, read only, etc.)), electrical circuitry forming a communications device (e.g., a modem, communications switch, optical-electrical equipment, etc.), and/or any non-electrical analog thereto, such as optical or other analogs. Those skilled in the art will also appreciate that examples of electro-mechanical systems include but are not limited to a variety of consumer electronics systems, medical devices, as well as other systems such as motorized transport systems, factory automation systems, security systems, and/or communication/computing systems. Those skilled in the art will recognize that electro-mechanical as used herein is not necessarily limited to a system that has both electrical and mechanical actuation except as context may dictate otherwise. 
     In a general sense, those skilled in the art will recognize that the various aspects described herein which can be implemented, individually and/or collectively, by a wide range of hardware, software, firmware, and/or any combination thereof can be viewed as being composed of various types of “electrical circuitry.” Consequently, as used herein “electrical circuitry” includes, but is not limited to, electrical circuitry having at least one discrete electrical circuit, electrical circuitry having at least one integrated circuit, electrical circuitry having at least one application specific integrated circuit, electrical circuitry forming a general purpose computing device configured by a computer program (e.g., a general purpose computer configured by a computer program which at least partially carries out processes and/or devices described herein, or a microprocessor configured by a computer program which at least partially carries out processes and/or devices described herein), electrical circuitry forming a memory device (e.g., forms of memory (e.g., random access, flash, read only, etc.)), and/or electrical circuitry forming a communications device (e.g., a modem, communications switch, optical-electrical equipment, etc.). Those having skill in the art will recognize that the subject matter described herein may be implemented in an analog or digital fashion or some combination thereof. 
     Those skilled in the art will recognize that at least a portion of the devices and/or processes described herein can be integrated into an image processing system. Those having skill in the art will recognize that a typical image processing system generally includes one or more of a system unit housing, a video display device, memory such as volatile or non-volatile memory, processors such as microprocessors or digital signal processors, computational entities such as operating systems, drivers, applications programs, one or more interaction devices (e.g., a touch pad, a touch screen, an antenna, etc.), control systems including feedback loops and control motors (e.g., feedback for sensing lens position and/or velocity; control motors for moving/distorting lenses to give desired focuses). An image processing system may be implemented utilizing suitable commercially available components, such as those typically found in digital still systems and/or digital motion systems. 
     Those skilled in the art will recognize that at least a portion of the devices and/or processes described herein can be integrated into a data processing system. Those having skill in the art will recognize that a data processing system generally includes one or more of a system unit housing, a video display device, memory such as volatile or non-volatile memory, processors such as microprocessors or digital signal processors, computational entities such as operating systems, drivers, graphical user interfaces  300 , and applications programs, one or more interaction devices (e.g., a touch pad, a touch screen, an antenna, etc.), and/or control systems including feedback loops and control motors (e.g., feedback for sensing position and/or velocity; control motors for moving and/or adjusting components and/or quantities). A data processing system may be implemented utilizing suitable commercially available components, such as those typically found in data computing/communication and/or network computing/communication systems. 
     Those skilled in the art will recognize that at least a portion of the devices and/or processes described herein can be integrated into a mote system. Those having skill in the art will recognize that a typical mote system generally includes one or more memories such as volatile or non-volatile memories, processors such as microprocessors or digital signal processors, computational entities such as operating systems, user interfaces  300 , drivers, sensors  150 , actuators, applications programs, one or more interaction devices (e.g., an antenna USB ports, acoustic ports, etc.), control systems including feedback loops and control motors (e.g., feedback for sensing or estimating position and/or velocity; control motors for moving and/or adjusting components and/or quantities). A mote system may be implemented utilizing suitable components, such as those found in mote computing/communication systems. Specific examples of such components entail such as Intel Corporation&#39;s and/or Crossbow Corporation&#39;s mote components and supporting hardware, software, and/or firmware. 
     Those skilled in the art will recognize that it is common within the art to implement devices and/or processes and/or systems, and thereafter use engineering and/or other practices to integrate such implemented devices and/or processes and/or systems into more comprehensive devices and/or processes and/or systems. That is, at least a portion of the devices and/or processes and/or systems described herein can be integrated into other devices and/or processes and/or systems via a reasonable amount of experimentation. Those having skill in the art will recognize that examples of such other devices and/or processes and/or systems might include—as appropriate to context and application—all or part of devices and/or processes and/or systems of (a) an air conveyance (e.g., an airplane, rocket, helicopter, etc.), (b) a ground conveyance (e.g., a car, truck, locomotive, tank, armored personnel carrier, etc.), (c) a building (e.g., a home, warehouse, office, etc.), (d) an appliance (e.g., a refrigerator, a washing machine, a dryer, etc.), (e) a communications system (e.g., a networked system, a telephone system, a Voice over IP system, etc.), (f) a business entity (e.g., an Internet Service Provider (ISP) entity such as Comcast Cable, Qwest, Southwestern Bell, etc.), or (g) a wired/wireless services entity (e.g., Sprint, Cingular, Nextel, etc.), etc. 
     In certain cases, use of a system or method may occur in a territory even if components are located outside the territory. For example, in a distributed computing context, use of a distributed computing system may occur in a territory even though parts of the system may be located outside of the territory (e.g., relay, server, processor, signal-bearing medium, transmitting computer, receiving computer, etc. located outside the territory). A sale of a system or method may likewise occur in a territory even if components of the system or method are located and/or used outside the territory. Further, implementation of at least part of a system for performing a method in one territory does not preclude use of the system in another territory. 
     One skilled in the art will recognize that the herein described components (e.g., operations), devices, objects, and the discussion accompanying them are used as examples for the sake of conceptual clarity and that various configuration modifications are contemplated. Consequently, as used herein, the specific exemplars set forth and the accompanying discussion are intended to be representative of their more general classes. In general, use of any specific exemplar is intended to be representative of its class, and the non-inclusion of specific components (e.g., operations), devices, and objects should not be taken limiting. 
     Those skilled in the art will appreciate that a user  600  may be representative of a human user  600 , a robotic user  600  (e.g., computational entity), and/or substantially any combination thereof (e.g., a user may be assisted by one or more robotic agents) unless context dictates otherwise. 
     With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations are not expressly set forth herein for sake of clarity. The herein described subject matter sometimes illustrates different components contained within, or connected with, different other components. It is to be understood that such depicted architectures are merely exemplary, and that in fact many other architectures may be implemented which achieve the same functionality. In a conceptual sense, any arrangement of components to achieve the same functionality is effectively “associated” such that the desired functionality is achieved. Hence, any two components herein combined to achieve a particular functionality can be seen as “associated with” each other such that the desired functionality is achieved, irrespective of architectures or intermedial components. Likewise, any two components so associated can also be viewed as being “operably connected”, or “operably coupled”, to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being “operably couplable”, to each other to achieve the desired functionality. Specific examples of operably couplable include but are not limited to physically mateable and/or physically interacting components, and/or wirelessly interactable, and/or wirelessly interacting components, and/or logically interacting, and/or logically interactable components. 
     In some instances, one or more components may be referred to herein as “configured to,” “configurable to,” “operable/operative to,” “adapted/adaptable,” “able to,” “conformable/conformed to,” etc. Those skilled in the art will recognize that “configured to” can generally encompass active-state components and/or inactive-state components and/or standby-state components, unless context requires otherwise. While particular aspects of the present subject matter described herein have been shown and described, it will be apparent to those skilled in the art that, based upon the teachings herein, changes and modifications may be made without departing from the subject matter described herein and its broader aspects and, therefore, the appended claims are to encompass within their scope all such changes and modifications as are within the true spirit and scope of the subject matter described herein. It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particular claim containing such introduced claim recitation to claims containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations,” without other modifiers, typically means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that typically a disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be typically understood to include the possibilities of “A” or “B” or “A and B.” 
     With respect to the appended claims, those skilled in the art will appreciate that recited operations therein may generally be performed in any order. Also, although various operational flows are presented in a sequence(s), it should be understood that the various operations may be performed in other orders than those which are illustrated, or may be performed concurrently. Examples of such alternate orderings may include overlapping, interleaved, interrupted, reordered, incremental, preparatory, supplemental, simultaneous, reverse, or other variant orderings, unless context dictates otherwise. Furthermore, terms like “responsive to,” “related to,” or other past-tense adjectives are generally not intended to exclude such variants, unless context dictates otherwise.