PATENT ABSTRACT
The present invention provides on-field sports officials and other similarly situated users with systems, methods and portable devices for monitoring, reviewing and evaluating sports, entertainment, news and other events and occurrences in nearly real time. These systems, methods and devices for example select and review images transmitted in a signal, such as a television signal of a football game or as another example from a security system camera. The system for selecting and reviewing signal segments comprises (i) a selection system including means for receiving at least one signal, means for identifying at least one segment of the signal, and means for transmitting the signal segment, and (ii) a reviewing system including means for receiving the signal segment, means for storing the signal segment, and means for reviewing information in the signal segment. The reviewing system may be a hand-held device, and may also include means for manipulating information in the signal segment, so that the user may, for example, rewind, fast-forward, freeze, enlarge or play in slow motion images from a sports or other event. In a preferred embodiment, a communications path is also established between the selection system and the receiving device, so that the user of the receiving device can obtain information about the selected signal segments and can transmit control signals to the selection system. On-field sports officials, for example, could use the present invention to operate an instant replay system independent from off-field personnel.

PATENT DESCRIPTION
This application claims benefit of Ser. No. 60/071,119 filed Jan. 12, 1998 and 60/110,468 filed Nov. 30, 1998. 
    
    
     BACKGROUND OF THE INVENTION 
     This invention relates to reviewing electronic images and other signals. More particularly, this invention relates to selecting and reviewing signal segments, including for example instant replay images and signals at sports, entertainment, news and other events, and in security systems. 
     DESCRIPTION OF THE RELEVANT ART 
     The invention of instant replay in 1963 revolutionized the way in which televised events are viewed. At the time, the notion of reviewing a portion of an event, only moments after it occurred, was entirely novel. Instant replay also had dramatic effects on how football games and other sports events are officiated. 
     The job of football officials, for example, includes making split-second decisions while simultaneously observing players, yard markers, boundaries and the ball. Occasionally, officials are confronted with difficult calls which would be easier to resolve with benefit of hindsight. Recognizing this, in 1986, major league football organizers adopted the use of instant replay during games as a tool to allow officials to review and correct “hard” or “close” calls. 
     As initially implemented, instant replay did not provide on-field officials with access to instant replay images. Rather, when a call was challenged, an off-field official reviewed available instant replay images of the relevant play, and described the review to on-field officials. The off-field official had access to instant replay images from each of several video cameras covering various angles and aspects of the play, but the on-field officials did not. 
     Instead of ensuring accuracy and quality of officiating, instant replay did not always resolve disputed calls. Instant replay sometimes also had negative effects on football games. Frequent challenges were made to calls by on-field officials. Lengthy delays, some lasting longer than five minutes, resulted while off-field officials reviewed plays, thereby expanding the duration of games, interrupting team momentum and disrupting mass media coverage. On-field officials were embarrassed when their calls were overturned. Accordingly, in 1991, the pragmatic problems faced by teams, referees, mass media producers and fans led major league football to terminate the use of instant replay during games. 
     Periodically, however, fans, players, officials, teams and mass media interests urge that instant replay be re-instituted. Today, television producers have integrated instant replay fully into their broadcasts and commentary on football and other sporting events. After a play, remote television viewers are often provided with instant replays from numerous camera angles. In a very real sense, television viewers now have some of the best seats for evaluating whether correct calls have been made. Even fans attending the games can see instant replay on large screen televisions situated around the playing field or on portable receivers they bring to the event. Meanwhile, officials are left to wait until post-game review to determine the accuracy of a call. 
     Accordingly, there is a need for a system that would provide sports event officials with portable on-field devices having substantial signal storage capacity, quality picture resolution, and zoom and slow-motion playback capabilities that would enable them in nearly real time to review, evaluate and, if necessary, change their judgments and calls. Such devices could also be used to review and evaluate other events, including entertainment and news events, and monitor real-life events and information reports. Such devices and systems also could be used as security systems at stores, commercial premises and other locations. 
     SUMMARY OF THE INVENTION 
     An object of the invention is to permit on-field sports officials to review and evaluate events without undue delay. 
     A further object of the invention is to provide a system and portable device to enable on-field sports officials to review and evaluate events without undue delay. 
     Another object of the invention is to provide a system and portable device to permit a user to surveil, monitor, review and evaluate entertainment, news, and other events and occurrences in nearly real time. 
     A further object of the invention is to provide a system and portable device for selecting and reviewing information included in a signal. 
     Another object of the invention is to provide a system and portable device for selecting and reviewing segments of a signal. 
     A further object of the invention is to provide a system and portable device for selecting signal segments and manipulating information included in signal segments, for example, by freezing the information or displaying the information in slow motion. 
     A further object of the invention is to provide a system and portable device wherein the user of the portable device can select signal segments based on information included in an auxiliary signal. 
     The present invention, as broadly described herein, provides a system for selecting and reviewing signal segments, including a selection system and a reviewing system, in which the selection system includes means for receiving at least one signal; means for identifying at least one segment of the signal, and means for transmitting the signal segment; and in which the reviewing system includes means for receiving the signal segment; means for storing the signal segment; means for reviewing information included in the signal segment; and, optionally, means for manipulating information included in the signal segment. 
     The present invention, as broadly described herein, provides a device for reviewing signal segments, including means for receiving at least one signal segment; means for storing at least one signal segment; means for reviewing information included in at least one signal segment; and, optionally, means for manipulating information included in at least one signal segment. 
     The present invention, as broadly described herein, also provides a method for selecting and reviewing signal segments, including the steps of receiving at least one signal into a selection system; identifying at least one segment of the signal; transmitting at least one signal segment from the selection system to a reviewing device; receiving at least one signal segment into the reviewing device; storing at least one signal segment in the reviewing device; reviewing information included in at least one signal segment; and, optionally, manipulating the information included in at least one signal segment. 
     The present invention, as broadly described herein, also provides a method for reviewing signal segments, including the steps of receiving at least one signal segment; storing the signal segment; reviewing information included in the signal segment; and, optionally, manipulating information included in the signal segment. 
     Additional aspects, objects and advantages of the invention are set forth in part in the description which follows, and in part are obvious from the description, or may be learned by practice of the invention. The objects and advantages of the invention may also be realized and attained by means of the instrumentalities and combinations particularly set out in the appended claims. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The accompanying drawings, which are incorporated in and constitute part of the specification, illustrate preferred embodiments of the invention, and together with the description, serve to explain the principles of the invention. 
     FIG. 1 is a diagram depicting a preferred embodiment of the system of the present invention for selecting and reviewing signal segments. 
     FIG. 2 is a flowchart depicting a preferred embodiment of the method of the present invention for selecting and reviewing signal segments. 
     FIG. 3 is a diagram depicting a preferred embodiment of the device of the present invention for reviewing signal segments. 
     FIG. 4 is a flowchart depicting a preferred embodiment of the method of the present invention for reviewing signal segments. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals indicate like elements throughout the several views. 
     SYSTEM FOR SELECTING AND REVIEWING SIGNAL SEGMENTS 
     FIG. 1 depicts a preferred embodiment of a system, comprising a combination of elements for selecting and reviewing signal segments. As depicted in FIG. 1, the system includes a selection system  140  and a reviewing system  220 . In the preferred embodiment depicted in FIG. 1, the selection system comprises means for receiving at least one signal, means for identifying at least one segment of at least one signal, and means for transmitting at least one signal segment. In the preferred embodiment depicted in FIG. 1, the reviewing system comprises means for receiving at least one signal segment, means for storing at least one signal segment, and means for reviewing information included in at least one signal segment. 
     In the preferred embodiment depicted in FIG. 1, the selection system  140  and the reviewing system  220  are at different locations. In another preferred embodiment not depicted in FIG. 1, the selection system  140  and the reviewing system  220  are at the same location. 
     THE SIGNAL 
     In the preferred embodiment depicted in FIG. 1, the signal  110  received by the selection system  140  comprises a television signal. In the preferred embodiment depicted in FIG. 1, signal  10  is a television signal that is transmitted from a television broadcast van  120 . In another preferred embodiment not depicted in FIG. 1, the signal  110  originates from one or more other signal source providers, including one or more television broadcast vans, cable programming vans, video cameras, security system video cameras, satellite systems, Internet service providers, audio signal generators, remote editing locations, manual editing locations, intelligent editing locations, reviewing systems  220  or any other means for generating signals known to persons of skill in the art. 
     In a preferred embodiment, the signal  110  comprises the same signals, images or information transmitted to viewers by a television broadcast station. In other preferred embodiments, the signal  110  comprises the same signals, information or images transmitted to viewers or listeners by signal source providers, as known to persons of skill in the art. 
     In the preferred embodiment depicted in FIG. 1, the signal  110  is derived from at least one image. The image may comprise video images, audio images, data images or any other images known to persons of skill in the art. In a preferred embodiment, the image comprises images of a sporting event. In another preferred embodiment, the signal  110  comprises instant replay images of a sporting event. In another preferred embodiment, the signal  10  comprises a plurality of images. In yet other preferred embodiments, the images include images of at least one non-sporting event, such as a real-life event, entertainment event or a news event. In another preferred embodiment, the images comprise images derived from security system cameras located in a store, commercial premise or other location known to persons of skill in the art. 
     In a preferred embodiment not depicted in FIG. 1, the signal comprises an audio signal. 
     In a preferred embodiment not depicted in FIG. 1, a plurality of signals  110  is received by the selection system  140 . In a preferred embodiment, the plurality of signals  110  may originate from a single television broadcast van  120  or any other single signal source. The plurality of signals  110  from the single signal source may, for example, comprise different camera angles of the same sporting event or other event, different images from different security system cameras at a commercial premise, or a plurality of other images as may be desired by the operator of the system of the present invention or by the operator(s) of the signal sources. In another preferred embodiment, a plurality of signals  110  may originate from a plurality of sources, as described above and known to persons of skill in the art, and may comprise a plurality of images as may be desired by the operator of the system of the present invention or by the operator(s) of the signal sources. 
     In another preferred embodiment, one or more of the plurality of signals  110  comprises data information. The data may describe a sporting event or other event. The data also may comprise statistics or information relating to the teams, players, performers or other participants or subjects of an event. The data also may comprise promotional materials, financial or stock market information, or other information as may be desired by the operator of the system of the present invention or by the operator(s) of the signal sources. 
     In another preferred embodiment not depicted in FIG. 1, a plurality of signals  110  is received by the selection system  140 , and at least one of the plurality of signals  110  comprises a control signal. The control signal may be generated by a timing device, a play clock, other electronic equipment, a reviewing system or other means known to persons of skill in the art. In a preferred embodiment, the control signal is generated from a clock at a sporting event. The control signal may contain information indicating when a play at a sporting event commences. In a preferred embodiment, the control signal is generated based on a 25-second clock, a 35-second clock or a similar device (including a play count down clock at a football game or the shot clock at a basketball game), and contains information indicating when each play at the sporting event begins. In other preferred embodiments, the control signal may be manually-generated or received from other sources known to persons of skill in the art. 
     In another preferred embodiment not depicted in FIG. 1, the control signal originates from at least one reviewing system  220  and is transmitted from at least one reviewing system  220  to the selection system  140 . In another preferred embodiment not depicted in FIG. 1, the control signal transmitted by the reviewing system  220  to the selection system  140  is in response to information included in an auxiliary signal transmitted (in either encrypted or unencrypted format) from the selection system  140  to at least one reviewing system  220 . The auxiliary signals are explained more fully in the following description of the selection system  140 . 
     In the preferred embodiment depicted in FIG. 1, the signal  110  is transmitted to the selection system  140  using coaxial cable  130 . In other preferred embodiments not depicted in FIG. 1, the signals  110  are transmitted to the selection system  140  using twisted pair copper wires, radio frequencies, wireless technologies, wire technologies, infra-red technologies, fiber optic technologies or other mediums for transmitting signals known to persons of skill in the art. 
     THE SELECTION SYSTEM 
     In the preferred embodiment depicted in FIG. 1, the selection system  140  comprises means for receiving at least one signal  110 , means for identifying at least one segment of at least one signal, and means for transmitting at least one signal segment  112 . 
     In the preferred embodiment depicted in FIG. 1, the selection system  140  is designed to operate near a sporting event, such as a football game, or another event, including an entertainment event or a news event. In a preferred embodiment not depicted in FIG. 1, the selection system  140  is located in an area of a stadium or a facility hosting a sporting event, news event, entertainment event or other event. In another preferred embodiment, the selection system  140  is located in proximity to a stadium or a facility hosting a sporting event, news event, entertainment event or other event. In other preferred embodiments, the selection system  140  is located at a distance from the signal source (e.g., television van  120 ) and from the reviewing system  220 , where the distance is based, in part, on the technical characteristics of the selection system  140 , the reviewing system  220 , and the signal source, as known to one of skill in the art. 
     In another preferred embodiment, the selection system  140  is located in proximity to security system cameras at a commercial premise or other similar location known to person of skill in the art. 
     In the preferred embodiment depicted in FIG. 1, the selection system  140  is designed to occupy the smallest space necessary, consistent with environmental and other requirements, for the selection system  140  and its operator(s). In another preferred embodiment, not depicted in FIG. 1, the selection system  140  is located in a space larger than necessary for the selection system and its operator(s). 
     In the preferred embodiment depicted in FIG. 1, the selection system  140  is not portable, but can be easily moved. In another preferred embodiment not depicted in FIG. 1, the selection system  140  is portable. In yet another preferred embodiment, the selection system  140  is stationary. 
     The Receiving Means of the Selection System 
     The selection system  140  comprises means for receiving at least one signal  110 . In the preferred embodiment depicted in FIG. 1, the receiving means comprises a receiving device  132  that can receive at least one signal  110 . The receiving device  132  contains designs, components and circuitry which are known to persons of skill in the art. 
     In a preferred embodiment, the receiving device  132  includes a signal demodulator, which can demodulate a received signal  110  to a baseband signal. In a preferred embodiment, the receiving device  132  includes a RF tuner which can be adjusted to receive signals  110  transmitted on different frequencies. In another preferred embodiment, the RF tuner is fixed or pre-set to receive signals  110  transmitted on certain predetermined frequencies. 
     In another preferred embodiment, the receiving device  132  comprises an equalizing amplifier or another similar device that is capable of making up any loss experienced by the received signals  110  when transmitted between the signal source and the selection system  140 . 
     In the preferred embodiment depicted in FIG. 1, the receiving device  132  comprises means to receive signals  110  transmitted by coaxial cable  130 . In other preferred embodiments not depicted in FIG. 1, the receiving device  132  comprises means to receive signals  110  transmitted by copper wire, radio frequencies, wire technologies, wireless technologies, infra-red technologies, fiber optic technologies or other means known to persons of skill in the art. 
     In a preferred embodiment, the receiving device  132  can receive signals  110  in analog format. In another preferred embodiment, the receiving device  132  can receive signals  110  in digital format. In yet other preferred embodiments, the receiving device  132  can receive signals  110  in multiple formats or in any signal format known to persons of skill in the art. 
     In a preferred embodiment, the receiving device  132  contains a decoder which can convert a received analog signal  110 , or any portion thereof, into a digital signal. The converted digital signal can be in any format known to persons of skill in the art, including formats having characteristics of 16-bit pixels, 640×480 pixel resolution, and 30 frames per second. The decoder comprises designs, components and circuitry as known to persons of skill in the art. In another preferred embodiment, the decoder is contained in the transmitter  134  of the selection system  140 . 
     In a preferred embodiment, the receiving device  132  contains at least one compression unit capable of compressing converted digital signals, received digital signals  110 , or both. The compression unit uses compression technology, including designs, components and circuitry, as known to persons of skill in the art. In another preferred embodiment, the compression unit is contained in the transmitter  134  of the selection system  140 . 
     In a preferred embodiment, the receiving device  132  also includes a storing mechanism to store the received signals  110 , the converted digital signals, the compressed signals, or any combination thereof. In a preferred embodiment, the storing mechanism comprises a SDRAM memory array. In other preferred embodiments, the storing mechanism comprises other devices for storing signals or images, or both, known to persons a of skill in the art. In at least one preferred embodiment, the storing mechanism comprises sufficient memory to store all signals associated with an event in its entirety, at least through the duration of the event. In another preferred embodiment, the storing mechanism is contained in the transmitter  134  of the selection system  140 . 
     In a preferred embodiment, the receiving device  132  comprises a microprocessor to manage the functions of the receiving device  132 , including the decoding of the signals, the compressing of the signals, and the storage of signals. The microprocessor comprises designs, components and circuitry as known to persons of skill in the art. 
     In a preferred embodiment, at least one receiving device  132  of the selection system  140  receives a control signal. In a preferred embodiment not depicted in FIG. 1, the control signal received by the receiving device  132  is transmitted to the selection system  140  from at least one reviewing system  220 . 
     The Identifying Means of the Selection System 
     The selection system  140  also comprises means for identifying at least one segment of at least one signal  110 . In a preferred embodiment not depicted in FIG. 1, the means for identifying at least one signal segment is inactive. In the preferred embodiment depicted in FIG. 1, the means for identifying at least one segment comprises at least one controller  150 . As depicted in FIG. 1, controller  150  identifies at least one signal segment  112  of at least one signal  110  to be transmitted via transmitter  134  from the selection system  140  to one or more reviewing systems  220 . A signal segment  112  can comprise a portion of a signal  110 , a digital signal; a compressed signal, a stored signal, or any combination thereof. A signal segment  112  also can comprise at least one image, at least one audio signal, at least one combined audio and image signal, at least one data signal, at least one combined audio, data and image signal, or at least one combined data and audio signal, or any other type of signal known to persons of skill in the art. 
     In a preferred embodiment, the signal segment  112  may comprise at least one image of a particular portion of a sporting event or other event. In another preferred embodiment, the signal segment  112  may comprise an instant replay image of a particular portion of a sporting event or other event. In another preferred embodiment, the signal segment  112  may comprise images derived from security system cameras located in a store, commercial premise or other location known to persons of skill in the art. 
     In another preferred embodiment, the controller  150  may identify a plurality of signal segments  112  derived from a single signal  110 . In another preferred embodiment, the controller  150  may identify a single signal segment  112  from a plurality of signals  110 . In another preferred embodiment, the controller  150  may identify a plurality of signal segments  112  derived from a plurality of signals  110 . 
     In a preferred embodiment not depicted in FIG. 1, at least one controller  150  comprises a manual identification system. A manual identification system preferably enables a person to identify at least one signal segment  112  to be transmitted from the selection system  140  to one or more reviewing systems  220 . 
     In a preferred embodiment not depicted in FIG. 1, the manual selection system of the controller  150  includes at least one reviewing unit and at least one control unit. In a preferred embodiment not depicted in FIG. 1, the reviewing unit of the controller  150  comprises a device for reviewing information included in the signals, for example, at least one monitor to enable a person to review at least one signal  110  received by the selection system  140 . In another preferred embodiment, a monitor of the reviewing unit enables a person to review information included in one or more digital signals, compressed signals or stored signals, or any combination thereof, received, stored or processed in the selection system  140 . 
     The monitors of the reviewing unit may consist of one or more video monitors or other similar devices, known to persons of skill in the art. The monitors can have different picture resolutions known to persons of skill in the art. The monitors can display images in color or in monochrome. The monitors may also comprise audio receiving and monitoring mechanisms, with stereo, monophonic or other audio receiving and processing capabilities, as known to persons of skill in the art. 
     The manual identification system of the controller  150 , not depicted in FIG. 1, also may comprise a control unit which enables a person to input information into the selection system  140  and thereby to select a portion of a signal  110 , a digital signal, a compressed signal or a stored signal to be transmitted from the selection system  140  to one or more reviewing systems  220 . The control unit can include a keyboard, a button, a mouse, or a similar input component known to persons of skill in the art for inputting information into the selection system  140 . By operating the control unit, an operator can select a signal segment  112  to be transmitted via transmitter  134  to one or more reviewing systems  220 . Also by operating the control unit, a person can select a plurality of signal segments  112  to be transmitted via transmitter  134  to one or more reviewing systems  220 . 
     In a preferred embodiment, the manual identification system of the controller  150  also includes an element for manipulating information included in the signals  110 , the signal segments  112 , the digital signals, the compressed signals and the stored signals that are being displayed on the reviewing unit of the manual selection system. The manipulation element can include means for changing the speed of review (i.e. fast-forwarding), repeatedly reviewing (i.e. rewinding), freezing, scaling or otherwise manipulating the signals  110 , the signal segments  112 , the digital signals, the compressed signals or the stored signals, or any images, audio signals, or data derived therefrom. The manipulation element also may include means for implementing slow-motion functions or other functions for adjusting playback speed known to persons of skill in art. The manipulation element can provide for a variety of speeds in the manipulation of the signal  110 , the signal segment  112 , the digital signals, the compressed signals and the stored signals. The manipulation element can be operated using the control unit of the manual identification system, or another keyboard, button, mouse or input or control means known to persons of skill in the art. 
     In another preferred embodiment, not depicted in FIG. 1, at least one controller  150  is responsive to a control signal received by the selection system  140 . The control signal may, for example, include information indicating when a signal segment  112  should begin, when a signal segment  112  should end, or both. In a preferred embodiment, the control signal includes information indicating when plays of a sporting event begin. This information can be obtained at a football game by monitoring a 25-second clock, a 35-second clock or any other game clock or play clock which is reset or manipulated each time a new play begins or when a play ends. In a preferred embodiment, the control signal received by the selection system  140  at a football game includes information indicating when the 25-second clock, the 35-second clock (or similar device) is reset or when a new play begins. The control signal can be generated manually. Alternatively, for example, the control signal also can be generated automatically by connecting the 25-second clock or 35-second clock (or similar device) to the selection system  140 . 
     In another preferred embodiment, the control signal is transmitted to the selection system  140  by at least one reviewing system  220 . In this preferred embodiment, the controller  150  of the selection system  140  selects a signal segment  112  from a signal  110  in response to a control signal transmitted by the reviewing system  220 . In a preferred embodiment, a control signal is transmitted from the reviewing system  220  to the selection system  140  using radio frequencies, wireless technologies, wire technologies, infra-red technologies, lasers, copper wire, coaxial cable, fiber optic cable or any other means known to persons of skill in the art. 
     In yet another preferred embodiment, a control signal is used to instruct the controller  150  to identify a signal segment  112  from a signal  110  received by the selection system  140  at a beginning of a play of a football game or other sporting event. In a preferred embodiment, the signal  110 , from which the signal segments  112  are identified in response to the control signal, includes video images. In another preferred embodiment, the signal  110 , from which the signal segments  112  are identified in response to the control signal, includes a combination of any of images, audio signals, or data signals. The means for using a control signal to instruct the controller  150  to identify a signal segment  112  of a signal  110  received by the selection system  140  are known to persons of skill in the art. 
     In another preferred embodiment, at least one controller  150  comprises an automatic identification system. An automatic identification system, for example, can cause a signal segment  112  to be identified from a signal  110  at predetermined time intervals or in accordance with some data or other predetermined criteria, as is known to one of skill in the art. In a preferred embodiment, the automatic identification system operates in response to a control signal indicating when a signal segment  112  should begin, when a signal segment  112  should end, or both. In a preferred embodiment, the control signal contains information indicating when each play of a sporting event begins. This information can be obtained at a football game, for example, by monitoring a 25-second clock, a 35-second clock or any other game clock or play clock which is reset or manipulated each time a new play begins or when a play ends. 
     In a preferred embodiment, the signal  110 , from which the signal segments  112  are identified in response to the automatic identification system, includes videos images. In another preferred embodiment, the signal  110 , from which the signal segments  112  are identified in response to the automatic identification system, includes a combination of any of video images, audio signals, or data signals. The means for using a control signal to instruct the controller  150  to identify a signal segment  112  of a signal  110  received by the selection system  140  are known to persons of skill in the art. 
     In another preferred embodiment not depicted in FIG. 1, the selection system  140  also comprises means for generating at least one auxiliary signal. In a preferred embodiment not depicted in FIG. 1, the means for generating auxiliary signals comprises at least one auxiliary unit. The auxiliary unit comprises designs, components, and circuitry for generating signals as are known to persons of skill in the art. In a preferred embodiment, at least one auxiliary unit is included in the controller  150  of the selection system  140 . In another preferred embodiment, at least one auxiliary unit is included in the transmitter  134  of the selection system  140 . In yet another preferred embodiment, at least one auxiliary unit is a separate unit within the selection system  140 . 
     In a preferred embodiment, at least one auxiliary signal (in either encrypted or unencrypted format) generated by the auxiliary unit comprises information describing at least one signal  110  received by the selection system  140 . For example, when the system of the present invention is used at a football game, at least one auxiliary signal may comprise information describing the source of at least one signal  110 , including whether the signal  110  originates from a television broadcast van  120 , a cable programming van, a remote editing location, a manual editing location, an intelligent editing location, or any other means for generating signals known to persons of skill in the art. 
     By way of another example, at least one auxiliary signal may comprise information describing the information included in the signal  110 . For example, when the selection system  140  is used at a football game, at least one auxiliary signal may comprise information describing the contents of at least one signal  110 , including the camera angle of the images included in the signal  110  or any other information relating to the contents or information included in the signal  110  as may be known to persons of skill in the art. In yet other preferred embodiments, at least one auxiliary signal comprises other information about at least one signal  110  as may be desired by the operator of the system of the present invention, by the operator of the selection system  140  or by the operator(s) of the signal sources  110 . 
     In another preferred embodiment not depicted in FIG. 1, at least one auxiliary signal (in either encrypted or unencrypted format) generated by the auxiliary unit comprises information describing at least one signal segment  112  identified by the controller  150  of the selection system  140 . For example, in a preferred embodiment, at least one auxiliary signal comprises information describing the information contained in the signal segments  112  that have been identified by the controller  150  of the selection system  140 . In another preferred embodiment, at least one auxiliary signal comprises information describing the information contained in the signal segments  112  that are stored in the storing mechanism of the selection system  140 . In other preferred embodiments, at least one auxiliary signal comprises other information about the signal segments  112  as may be desired by the operator of the system of the present invention or by the operator(s) of the signal sources. 
     In another preferred embodiment not depicted in FIG. 1, the selection system  140  also comprises means for encrypting at least one signal segment  112  or auxiliary signal. In a preferred embodiment not depicted in FIG. 1, the encrypting means comprises at least one encryption unit. The encryption unit comprises designs, components and circuitry for encrypting signal segments  112  or auxiliary signals as are known to persons of skill in the art. In a preferred embodiment, at least one encryption unit is included in the controller  150  of the selection system  140 . In another preferred embodiment, at least one encryption unit is included in the transmitter  134  of the selection system  140 . In yet another preferred embodiment, at least one encryption unit is a separate unit within the selection system  140 . 
     In another preferred embodiment not depicted in FIG. 1, the selection system  140  also comprises means for addressing at least one signal segment  112  or auxiliary signal to one or more selected reviewing systems  220 . Preferably, only the selected reviewing systems include means for reviewing information included in the addressed signal segment  112  or auxiliary signal. In a preferred embodiment not depicted in FIG. 1, the addressing means comprises at least one addressing unit. The addressing unit comprises designs, components and circuitry for addressing signal segments  112  and auxiliary signals as are known to persons of skill in the art. In a preferred embodiment, at least one address unit is included in the controller  150  of the selection system  140 . In another preferred embodiment, at least one address unit is included in the transmitter  134  of the selection system  140 . In yet another preferred embodiment, at least one address unit is a separate unit within the selection system  140 . 
     The Transmitting Means of the Selection System 
     The selection system  140  also comprises transmitting means. As depicted in FIG. 1, the transmitting means comprises at least one transmitter  134  for transmitting at least one unencrypted signal segment  112  from the selection system  140  to one or more reviewing systems  220 . In another preferred embodiment, at least one transmitter  134  can transmit at least one unencrypted auxiliary signal from the selection system  140  to one or more reviewing systems  220 . In a further preferred embodiment, at least one transmitter  134  can transmit at least one signal segment  112  to at least one reviewing system  220  in encrypted format. In another preferred embodiment, at least one transmitter  134  can transmit at least one auxiliary signal to at least one reviewing system  220  in encrypted format. 
     In a preferred embodiment depicted in FIG. 1, the transmitter  134  is connected via coaxial cable  180  to antenna  185 , and signal segments  112  or auxiliary signals are transmitted via radio frequencies  190  to reviewing system  220 . In a preferred embodiment, the transmitter  134  comprises a tuner which tunes the transmitter  134  to transmit using pre-determined radio frequencies  190 . Alternatively, in another preferred embodiment, the transmitter  134  comprises a tuner which can be tuned to transmit on a variety of radio frequencies  190 . In a preferred embodiment, the transmitter  134  can transmit signal segments  112  or auxiliary signals using Channels 2 through 69 (or any portion thereof) of the VHF and UHF television broadcast frequencies. 
     In a preferred embodiment not depicted in FIG. 1, the transmitter  134  includes at least one bandpass filter to mitigate potential interference to transmissions on frequencies adjacent to the radio frequencies  190  used for transmitting and receiving signal segments  112  or auxiliary signals. In another preferred embodiment not depicted in FIG. 1, a plurality of bandpass filters is included in the transmitter  134  to maintain flexibility to transmit using a variety of radio frequencies  190 . 
     In other preferred embodiments, the transmitter  134  uses other mediums for transmitting signal segments  112  or auxiliary signals known to persons of skill in the art, including co-axial cable  180 , wireless technologies, wire technologies, infra-red technologies, fiber optic technologies, copper wire, laser signals or other means known to one of skill in the art. The transmitter  134  comprises designs, components and circuitry known to persons of skill in the art. 
     In a preferred embodiment, the transmitter  134  transmits the signal segments  112  (in either encrypted or unencrypted format) to the reviewing systems  220  in digital format. In an alternative preferred embodiment, the transmitter  134  transmits the signal segments  112  (in either encrypted or unencrypted format) to the reviewing systems  220  in an analog format. 
     In a preferred embodiment, the transmitter  134  transmits auxiliary signals (in either encrypted or unencrypted format) to the reviewing systems  220  in digital format. In an alternative preferred embodiment, the transmitter  134  transmits auxiliary signals (in either encrypted or unencrypted format) to the reviewing systems  220  in analog format. 
     As depicted in FIG. 1, the antenna  185  is a separate physical structure from the unit that holds other components and circuitry of the selection system  140 . In an alternative preferred embodiment, the antenna  185  can be integrated into the same unit that holds the other components of the selection system  140 . 
     In a preferred embodiment, the transmitting antenna  185  is selected to cause the signal segments  112 , the auxiliary signals, or the radio frequency signals  190 , or any combination thereof, to have a signal level of not less than approximately 1000 uV/m when received at the reviewing system  220 . In another preferred embodiment, the transmitting antenna  185  is selected to cause the signal segments  112 , the auxiliary signals, or the radio frequency signals  190 , or any combination thereof, to have a different signal level when received at the reviewing system  220 . In a preferred embodiment, the transmitting antenna  185  is passive, as is known to one of skill in the art. In another preferred embodiment, the transmitting antenna  185  is active, as is known to one of skill in the art. In another preferred embodiment, antenna  185  has other transmission characteristics, such as signal polarization, suitable for the particular application as are known to one of skill in the art. 
     In another preferred embodiment, the transmitter  134  comprises at least one decoder, at least one compression unit, or at least one storing mechanism, or any combination thereof. The decoder, the compression unit and the storing mechanism are described more fully with respect to the description of the receiving device  132 . 
     In another preferred embodiment, the transmitter  134  comprises a microprocessor to manage the functions of the transmitter  134 . Such microprocessors for managing transmitters are known to persons of skill in the art. 
     In a preferred embodiment the transmitter  134  transmits signal segment  112  (in either encrypted or unencrypted form) using radio frequencies  190  to one or more reviewing systems  220  essentially simultaneously as the signal  110  corresponding to such signal segment  112  is received by the selection system  140 , and essentially simultaneously as the images or sounds included in signal segment  112  are transmitted to viewers or listeners by a television broadcast station or other means for transmitting signals, sounds and images to viewers or listeners. This timing enables a person using a reviewing system  220  to review signal segment  112  essentially simultaneously as the images, corresponding to the images included in the signal segment  112 , are being viewed by television broadcast or other viewers. 
     In another preferred embodiment, the transmitter  134  transmits signal segment  112  (in either encrypted or unencrypted form) to one or more reviewing systems  220  at some time after the signal  110  corresponding to such signal segment  112  is received by the selection system  140 . 
     In a preferred embodiment, the transmitter  134  essentially simultaneously transmits auxiliary signals and signal segments  112  (in either encrypted or unencrypted format) using radio frequencies  190  to one or more reviewing systems  220 . In another preferred embodiment, there are a plurality of transmitters  134  that essentially simultaneously transmit auxiliary signals (in either encrypted or unencrypted format) and signal segments  112  (in either encrypted or unencrypted format) to one or more reviewing systems  220 . 
     In another preferred embodiment, at least one transmitter  134  transmits signal segments  112  (in either encrypted or unencrypted form) to one or more reviewing systems  220  some time before or after an auxiliary signal is transmitted to one or more reviewing systems  220 . 
     THE REVIEWING SYSTEM 
     The preferred embodiment depicted in FIG. 1 comprises one or more reviewing systems  220 . Each reviewing system  220  comprises means for receiving at least one signal segment  112 , means for storing at least one signal segment  112 , and means for reviewing information included in at least one signal segment  112 . Each reviewing system  220  preferably may be operated separately and independently from other reviewing systems  220 . 
     In another preferred embodiment not depicted in FIG. 1, the reviewing system  220  comprises means for receiving at least one auxiliary signal transmitted by the selection system  140 . In another preferred embodiment, the reviewing system  220  also has means for storing at least one auxiliary signal. In another preferred embodiment, the reviewing system  220  comprises means for reviewing information included in at least one auxiliary signal. 
     In another preferred embodiment not depicted in FIG. 1, at least one reviewing system  220  includes means for generating at least one control signal and transmitting at least one control signal to the selection system  140 . In another preferred embodiment, the control signal generated by the reviewing system  220  is in response to information included in at least one auxiliary signal. 
     In another preferred embodiment not depicted in FIG. 1, at least one reviewing system  220  has means for responding to a user-flag signal. In another preferred embodiment, the reviewing system, in response to the user-flag signal, flags a portion of at least one signal segment  112 . In another preferred embodiment, the reviewing system has means for reviewing information included in a flagged portion of at least one signal segment  112  in response to a user-rewind signal. In another preferred embodiment not depicted in FIG. 1, the reviewing system  220  has means for responding to a bookmark signal as is known to persons skilled in the art. 
     In the preferred embodiment depicted in FIG. 1, the reviewing system  220  is portable. In another preferred embodiment, the reviewing system  220  is light-weight and small enough to be held and operated with a single hand. In another preferred embodiment, the reviewing system  220  comprises a weather resistant casing. In another preferred embodiment, the reviewing system  220  can be placed in a holster belt attachment. In other preferred embodiments one or more reviewing systems  220  may be permanently fixed, temporarily fixed or otherwise configured as may be needed for particular events or other applications, including security system applications, as would be apparent to users or persons of skill in the art. 
     In a preferred embodiment, the reviewing system  220  comprises a power source. The power source may comprise at least one battery or any other source for powering electronic devices or systems, including hand-held electronic devices, known to persons of skill in the art. Any batteries included in the power source of the reviewing system  220  may be rechargeable or non-rechargeable. 
     Means for Receiving at Least One Signal Segment 
     The reviewing system  220  comprises means for receiving at least one signal segment  112  (in either encrypted or unencrypted format) transmitted by the selection system  140 . In another preferred embodiment, the reviewing system  220  comprises means for receiving at least one auxiliary signal (in either encrypted or unencrypted format) transmitted by the selection system  140 . In the preferred embodiment depicted in FIG. 1, the receiving means comprises at least one segment receiver  215  which can receive one or more signal segments  112  from the selection system  140 . In another preferred embodiment, the segment receiver  215  can receive one or more auxiliary signals from the selection system  140 . The segment receiver  215  includes designs, components and circuitry known to persons of skill in the art. 
     In a preferred embodiment, the segment receiver  215  receives at least one signal segment  112 , auxiliary signal, or a combination thereof, in unencrypted format. In another preferred embodiment, the segment receiver  215  receives at least one signal segment  112 , one auxiliary signal or a combination thereof, in encrypted or unencrypted format. 
     In another preferred embodiment not depicted in FIG. 1, the segment receiver  215  comprises means for decrypting at least one encrypted signal segment  112  or at least one encrypted auxiliary signal or a combination thereof. In a preferred embodiment, the decrypting means comprises a decryption unit. The decryption unit comprises designs, components, and circuitry for decrypting signal segments  112 , or auxiliary signals, or a combination thereof, as are known to persons of skill in the art. 
     In another preferred embodiment not depicted in FIG. 1, the segment receiver  215  comprises means for decoding at least one addressed signal segment  112  or at least one addressed auxiliary signal or a combination thereof. In a preferred embodiment, the decoding means comprises an address decoder unit. The address decoder comprises designs, components, and circuitry for decoding addressed signal segments  112  or addressed auxiliary signals, or a combination thereof, as are known to persons of skill in the art. 
     In other preferred embodiments, the segment receiver  215  comprises a RF tuner, a demodulator, or both. The RF tuner preferably comprises a unit capable of receiving the signal segments  112  or auxiliary signals on the same frequencies  190  used for transmitting the signal segments  112  or auxiliary signals by the selection system  140 . The demodulator preferably comprises a unit capable of demodulating at least one signal segment  112  or auxiliary signal to a baseband signal from the frequencies  190  used for transmitting the signal segments  112  or auxiliary signals by the selection system  140 . In a preferred embodiment, the segment receiver  215  receives signal segments  112  or auxiliary signals transmitted in digital format. In an alternative preferred embodiment, the segment receiver  215  receives signal segments  112  or auxiliary signals transmitted in analog format. 
     In the preferred embodiment depicted in FIG. 1, the segment receiver  215  receives signal segments  112  or auxiliary signals transmitted using radio frequencies  190 . In alternative preferred embodiments not depicted in FIG. 1, the segment receiver  215  receives signal segments  112  or auxiliary signals transmitted by coaxial cable, lasers, copper wire, wireless technologies, wire technologies, infra-red or fiber optic technologies, or other means known to persons of skill in the art. 
     In the preferred embodiment depicted in FIG. 1, the segment receiver  215  comprises an antenna  200 . The antenna  200  can be produced using either a flexible material or a non-flexible material, or both. In a preferred embodiment, the antenna  200  is omni-directional and can receive signal segments  112  or auxiliary signals or a combination thereof from the selection system  140 , regardless of the direction or plane in which the reviewing system  220  is oriented. In another preferred embodiment, the antenna  200  is directional. Antenna  200  possesses features known to persons of skill in the art. 
     In the preferred embodiment depicted in FIG. 1, the antenna  200  is external to the reviewing system  220 . In an alternative preferred embodiment not depicted in FIG. 1, the antenna for reviewing system  220  is contained inside the casing of the reviewing system  220 . In an alternate preferred embodiment not depicted in FIG. 1, the antenna for the reviewing system  220  is retractable within the casing of the reviewing system  220 . Alternate configurations of the antenna  200  for reviewing system  220  are known to one of skill in the art. 
     Means for Storing At Least One Signal Segment 
     The reviewing system  220  comprises means for storing at least one signal segment  112 . In the preferred embodiment depicted in FIG. 1, the storage means comprises at least one memory storage unit  212  for storing at least one signal segment  112  transmitted by the selection system  140 . In a preferred embodiment depicted in FIG. 1, the reviewing system  220  has a plurality of memory storage units  212  for storing a plurality of signal segments  112  transmitted by the selection system  140 . In a preferred embodiment, the memory storage units  212  of the reviewing system  220  comprise digital recording chips as known to persons of skill in the art. In another preferred embodiment, the memory storage units  212  comprise analog recording chips. Alternate means for storing signal segments  112  within reviewing system  220  are known to one of skill in the art. 
     In a preferred embodiment, at least one memory storage unit  212  has a capacity for storing a signal segment  112  of at least 120-seconds in duration. In another preferred embodiment, at least one memory storage unit  212  has a capacity for storing a signal segment  112  of at least 115-seconds in duration. In another preferred embodiment, at least one memory storage unit  212  has a capacity for storing a signal segment  112  of at least 90-seconds in duration. In another preferred embodiment, at least one memory storage unit  212  has a capacity for storing a signal segment  112  of at least 45-seconds in duration. In a preferred embodiment, there are a plurality of memory storage units  212 , each having the same storage capacity. In another preferred embodiment, there are a plurality of memory storage units  212 , at least two of which have different storage capacities. 
     In a preferred embodiment not depicted in FIG. 1, the reviewing system  220  comprises a change unit, as known to one of skill in the art, which enables a signal segment  112  stored in a memory storage unit  212  to be erased or deleted. 
     In a preferred embodiment not depicted in FIG. 1, the reviewing system  220  comprises a means, as known to one of skill in the art, for transferring at least one signal segment  112  stored in a memory storage unit  212  to a recording device external to reviewing system  220 , including a VCR tape, a computer device, or some other recording means known to persons of skill in the art. 
     In a preferred embodiment, at least one memory storage unit  212  can be used for storing at least one auxiliary signal transmitted by the selection system  140  to the reviewing system  220 . In another preferred embodiment not depicted in FIG. 1, the change unit of the reviewing system  220  enables an auxiliary signal stored in a memory storage unit  212  to be erased or changed. In another preferred embodiment not depicted in FIG. 1, the reviewing system  220  comprises means, as known to one of skill in the art, for transferring at least one auxiliary signal stored in a memory storage unit  212  to a recording device external to reviewing system  220 , including a VCR tape, a computer device, or some other recording means known to persons of skill in the art. 
     Means for Reviewing Information Included in at Least One Signal Segment 
     In the preferred embodiment depicted in FIG. 1, the reviewing system  220  has a means for reviewing information included in at least one signal segment  112  transmitted by the selection system  140  and received by the reviewing system  220 . As is known in the art, the term “reviewing information” includes all processing (and components for processing) of electronic signals necessary, useful or desirable for transforming electronic signals (including radio, light, infra-red, and magnetic) into visual, audio, audio-visual or other images that may be perceived by individuals. 
     The information reviewed by the reviewing system may  220  comprise information included in at least one signal segment stored in a memory storage unit  212 . Alternatively, the reviewed information may comprise information included in at least one signal segment  112  that is essentially simultaneously received and reviewed by the reviewing system  220 . 
     In a preferred embodiment not depicted in FIG. 1, the reviewing system- 220  has means for reviewing information included in at least one auxiliary signal. The information may comprise, for example, a video image, a sound image, or a data image describing the source of at least one signal  110  received by the selection system  140  or information included in at least one signal segment  112  identified by the selection system  140 . In another preferred embodiment, the image from the auxiliary signal comprises a menu or listing of a plurality of signals  110  received by the selection system  140 . In another preferred embodiment, the image from the auxiliary signal comprises a menu or listing of the information contained in a plurality of signal segments  112  identified by the selection system  140 . In another preferred embodiment, the auxiliary signal comprises an audio description of one or more signals  110  or one or more signal segments  112 . 
     In a preferred embodiment, the information in the auxiliary signal is reviewed essentially simultaneously with the receipt by the reviewing system  220  of the auxiliary signal. In another preferred embodiment, the information is reviewed after the auxiliary signal has been received by the reviewing system  220  and stored in a memory storage unit  212  or other storage unit associated with the reviewing system  220 . 
     In the preferred embodiment depicted in FIG. 1, the reviewing means comprises a video screen  210  which can display images, including video or data images, derived from a signal segment  112 , or an auxiliary signal, or a combination thereof. The video screen  210  can comprise an LCD display screen or other video display technology known to persons of skill in the art. For example, video screen  210  may comprise an eyepiece, such as glasses, goggles, binoculars or monoculars, which when looked through contain a screen for viewing images. In a preferred embodiment not depicted in FIG. 1, the video screen  210  is included in an eyepiece that is not physically included in the same casing as reviewing system  220 . 
     In a preferred embodiment not depicted in FIG. 1, the reviewing system  220  comprises a plurality of video screens  210  or other video display technology for essentially simultaneously reviewing information included in a plurality of stored signal segments or received signal segments  112 , stored auxiliary signals or received auxiliary signals, or any combination thereof. In another preferred embodiment not depicted in FIG. 1, the reviewing means comprises at least one audio speaker, as is known to persons of skill in the art, to play back any audio portions of the signal segment  112 , or auxiliary signal or a combination thereof. In another preferred embodiment not depicted in FIG. 1, the reviewing system  220  comprises a combination of at least one video screen and at least one audio speaker. 
     In the preferred embodiment depicted in FIG. 1, the reviewing means further comprises a means for manipulating at least one signal segment  112  stored in a memory storage unit  212  or received essentially simultaneously by the signal segment receiver  215  of the reviewing system  220 . In the preferred embodiment depicted in FIG. 1, the manipulating means comprises a manipulating unit  216 . In this preferred embodiment, the manipulating unit  216  comprises means for selecting which images derived from stored signal segments  112  or simultaneously received signal segments  112  are to be reviewed on the video screen  210 , the audio speakers, or the other reviewing means of the reviewing device  220 . The means used by the manipulating unit  216  for selecting the images to be reviewed comprises designs, components, and circuitry known to persons of skill in the art. 
     In another preferred embodiment, the reviewing means further comprises a means for manipulating at least one auxiliary signal stored in a memory storage unit  212  or received essentially simultaneously by the segment receiver  215  of the reviewing system  220 . In the preferred embodiment depicted in FIG. 1, the manipulating means comprises a manipulating unit  216 . In this preferred embodiment, the manipulating unit  216  comprises means for selecting which images derived from stored auxiliary signals, or essentially simultaneously received auxiliary signals, are to be reviewed on the video screen  210 , the audio speakers, or the other reviewing means of the reviewing device  220 . The means used by the manipulating unit  216  for selecting the images to be reviewed comprises designs, components, and circuitry known to persons of skill in the art. 
     In a preferred embodiment not depicted in FIG. 1, the manipulating unit  216  comprises means for controlling the manner in which an image derived from a signal segment  112  or an auxiliary signal is reviewed on the video screen  210 , the audio speakers, or the other reviewing means. In a preferred embodiment, the manipulating unit  216  comprises means for changing the speed of review (i.e. fast-forwarding) of information included in signal segment  112  or auxiliary signal on at least one video screen  210 . In another preferred embodiment, the manipulating unit  216  comprises means for fast-forwarding information included in at least one signal segment  112  on at least one audio speaker or other reviewing means of the reviewing system  220 . In a preferred embodiment, the manipulating unit  216  enables a person to adjust the speed at which information included in a signal segment  112  or an auxiliary signal is fast-forwarded. The means for fast-forwarding comprises design, components, and circuitry known to persons of skill in the art. 
     In a preferred embodiment, the manipulating unit  216  comprises means for repeatedly reviewing (i.e. rewinding or playing back) information included in at least one signal segment  112  or auxiliary signal on at least one video screen  210 . In another preferred embodiment the manipulating unit  216  comprises means for rewinding or playing back information included in at least one signal segment  112  or auxiliary signal on at least one audio speaker or other reviewing means of the reviewing system  220 . In a preferred embodiment, the manipulating unit  216  enables a person to adjust the speed at which information included in a signal segment  112  or auxiliary signal is rewound or played back. The means for rewinding or playing back comprises designs, components, and circuitry known to persons of skill in the art. 
     In a preferred embodiment, the manipulating unit  216  comprises means for freezing at least one signal segment  112  or auxiliary signal at the location of at least one image and displaying that image on at least one video screen  210 . In another preferred embodiment, the manipulating unit  216  comprises a means for freezing at least one signal segment  112  or auxiliary signal on at least one other reviewing means of the reviewing system  220 . The means for freezing a signal segment  112  at a particular location and reviewing the information at that location comprises designs, components, and circuitry known to persons of skill in the art. 
     In a preferred embodiment, the manipulating unit  216  comprises means for reviewing information included in a signal segment  112  or auxiliary signal in slow motion on at least one video screen  210 , or on at least one audio speaker, or other reviewing means of the reviewing system  220 . In a preferred embodiment, the manipulating unit  216  enables a person to adjust the slow motion speed of the images. The means for reviewing a signal segment  112  or auxiliary signal in slow motion, and for adjusting the speed of that motion comprises designs, components, and circuitry known to persons of skill in the art. 
     In a preferred embodiment, the manipulating unit  216  comprises means for scaling at least one video image included in at least one signal segment  112  stored or essentially simultaneously received by the reviewing system  220  or one auxiliary signal stored or essentially simultaneously received by the reviewing system  220 . The image can be scaled by enlarging a portion of the image displayed on the video screen  210  or other reviewing means. The image also can be scaled by reducing the size of an electronic image displayed on the video screen  210  or other reviewing means. In a preferred embodiment, the manipulating unit  216  enables a person to adjust the size of the scaled image. The means for scaling an image comprises designs, components, and circuitry known to persons of skill in the art. 
     In a preferred embodiment not depicted in FIG. 1, the manipulating unit  216  also comprises means for selecting, for scaling, a portion of an image displayed on video screen  210 . Structures and techniques for selecting a portion of a video image for scaling are known to persons of skill in the art. 
     The manipulating unit  216  comprises a microprocessor or other means known to persons of skill in the art for controlling the various functions of the manipulating unit  216 . In another preferred embodiment, the reviewing system  220  comprises a microprocessor or other means known to persons of skill in the art for controlling the various functions of the reviewing system  220 . 
     Transmitting Means of Reviewing System 
     In a preferred embodiment not depicted in FIG. 1, the reviewing system  220  further comprises means for generating at least one control signal. In a preferred embodiment not depicted in FIG. 1, the means for generating a control signal by the reviewing system  220  comprises at least one signal generator. The signal generator comprises designs, components and circuitry for generating signals known to persons of skill in the art. 
     In another preferred embodiment not depicted in FIG. 1, the signal generator of the reviewing system  220  generates a control signal in response to information included in at least one auxiliary signal received by the reviewing system  220 . By way of example, when the system of the present invention is used at a football game, the auxiliary signal received and reviewed by the reviewing system  220  may include information (in the form of a menu, listing or other display known to persons of skill in the art) describing a plurality of signal segments  112  which can be transmitted from the selection system  140  to the reviewing system  220 . The reviewing system  220  also comprises means for enabling a user to select which of these available signal segments  112  will be transmitted from the selection system  140  to the reviewing system  220 . This selection means comprises a selection device which enables a user to select the desired signal segments based on the information included in the auxiliary signal. The selection device of the reviewing system  220  may comprise a button, dial, pointer or other means for selecting an item from a menu, listing or other display known to persons of skill in the art. In a preferred embodiment, the signal generator of the reviewing system  220  generates at least one control signal in response to the selection of at least one desired signal segment  112  by the user of the reviewing system  220 . 
     In another preferred embodiment not depicted in FIG. 1, the reviewing system  220  comprises means for transmitting at least one control signal from the reviewing system  220  to the selection system  140 . In a preferred embodiment, the transmitting means of the reviewing device  220  comprises a transmit unit. The transmit unit comprises designs, components and circuitry for transmitting signals known to persons of skill in the art. In a preferred embodiment, at least one control signal transmitted by the transmitting unit from the reviewing system  220  to the selection system  140  is generated in response to information contained in at least one auxiliary signal. 
     Means for Responding to User-Flag Signal 
     In another preferred embodiment not depicted in FIG. 1, at least one reviewing system  220  has means for responding to a user-flag signal. The user-flag signal may comprise an audio signal (including an audio signal generated by a voice, a buzzer, or a whistle), a video signal, or any other type of signal known to persons of skill in the art. In a preferred embodiment, the user-flag signal is generated by the sound of a whistle at a football game. In another preferred embodiment, the user-flag signal is generated by the sound of a security alarm in a store, commercial premise or other location as known to persons of skill in the art. 
     In a preferred embodiment not depicted in FIG. 1, the means of the reviewing system  220  for responding to the user-flag signal comprises a receiver and a marker. The receiver of the reviewing system  220  comprises designs, components and circuitry for detecting and receiving user-flag signals as are known to persons of skill in the art. 
     In a preferred embodiment not depicted in FIG. 1, the reviewing system  220  has means for flagging a portion of at least one signal segment  112  in response to at least one user-flag signal. In a preferred embodiment, the flagging means of the reviewing system  220  comprises a marker. The marker comprises designs, components and circuitry, known to persons of skill in the art, for flagging or marking a signal segment  112  received by the reviewing system  220  essentially simultaneously with receipt of the user-flag signal by the receiver of the reviewing system  220 . 
     By way of example, at a football game, the user-flag signal may comprise an audio signal generated by the sound of a whistle used by an official. A user-flag signal is generated each time a officials&#39;s whistle is blown. A receiver of the reviewing system  220  receives the user-flag signals. The marker of the reviewing system  220  essentially simultaneously flags a signal segment  112  received by the segment receiver  215  of the reviewing system  220  each time a user-flag signal is received by the receiver. By marking or flagging the signal segment  112 , in response to a user-flag signal, the reviewing system  220  enables users of the present invention to identify readily the portion of the signal segment  112  corresponding to the time when the referee&#39;s whistle is blown. These preferred embodiments of the reviewing system  220  enable officials (using the reviewing systems  220  of the present invention) to review more quickly information in important portions of the signal segments  112 . 
     In another preferred embodiment not depicted in FIG. 1, the reviewing system  220  contains means, in response to a user-rewind signal, for reviewing information in a portion of at least one signal segment  112  flagged by the marker. The user-rewind signal may comprise an audio signal (including an audio signal generated by a voice, a buzzer, or a whistle), a video signal, or any other type of signal known to persons of skill in the art. In a preferred embodiment, not depicted in FIG. 1, the user-rewind signal is generated by the sound of an official&#39;s voice or the voice of another user of the reviewing system  220  of the present invention. 
     In a preferred embodiment not depicted in FIG. 1, the means of the reviewing system  220  for responding to the user-rewind signal comprises a receiver and a rewind unit. The receiver of the reviewing system  220  comprises designs, components and circuitry for detecting and receiving user-rewind signals as are known to persons of skill in the art. 
     In a preferred embodiment not depicted in FIG. 1, the reviewing system  220  has means for rewinding a portion of at least one flagged signal segment  112  in response to at least one user-rewind signal. In a preferred embodiment the rewinding means of the reviewing system  220  comprises a rewind unit. The rewind unit comprises designs, components and circuitry for rewinding a signal segment, in response to the user-rewind signal, to the image corresponding to the point or location in the signal segment corresponding to the time when the user-flag signal was received. The rewind unit also contains means, known to persons of skill in the art, for causing the reviewing unit  220  to review the flagged portion of the signal segment. 
     In another preferred embodiment not depicted in FIG. 1, at least one reviewing system  220  has means for responding to a bookmark signal. The bookmark signal may comprise an audio signal, an electronic signal, or any other type of signal known to persons of skill in the art. In a preferred embodiment, the bookmark signal is generated by the reviewing system  220  by a signal generator (as described above) or other means known to persons of skill in the art. The bookmark signal is used to flag or mark a portion of a signal segment  112  received by the reviewing system  220 . The bookmark signal enables the user of the present invention to identify a desired portion of the received signal segment  112  for review using the reviewing system  220  or by using a marker, a selection unit or other means for bookmarking signals as known to persons of skill in the art. 
     Simultaneous Operations of the Reviewing System 
     In a preferred embodiment, the reviewing system  220  can perform a combination of essentially simultaneous functions with respect to at least one signal segment  112 . For example, in a preferred embodiment, the reviewing system  220  essentially simultaneously can receive a signal segment  112  using the segment receiver  215  and store the same signal segment  112  in a memory storage unit  212 . The means for performing these essentially simultaneous functions are known to persons of skill in the art. 
     In another preferred embodiment, the receiving system  220  essentially simultaneously can receive a signal segment  112 , store the same signal segment  112  in a memory storage unit  212 , and review the information included in the same signal segment  112  on a video screen  210 , an audio speaker, or other reviewing means. The means for performing these simultaneous functions are known to persons of skill in the art. 
     In another preferred embodiment, the reviewing system  220  essentially simultaneously can receive a signal segment  112 , store the same signal segment  112  in a memory storage unit  212 , review information included in the signal segment  112  on a video screen  210 , the audio speaker, or other reviewing means, and manipulate the information on the video screen  210 , the audio receiver, or other reviewing means. With this preferred embodiment, the beginning portion of information included in at least one signal segment  112  can be rewound, scaled or otherwise manipulated, while the remaining portion of the information included in at least one signal segment  112  is essentially simultaneously being received by the segment receiver  215  and stored in a memory storage unit  212 . 
     Other examples of simultaneous performance of functions by reviewing system  220  (with respect to signal segments and/or auxiliary signals) will be apparent to those of skill in the art from this specification and from use of the device or system of the present invention. 
     SYSTEM COMPRISING A PLURALITY OF REVIEWING SYSTEMS 
     In another preferred embodiment not depicted in FIG. 1, the system of the present invention comprises a selection system  140  and a plurality of reviewing systems  220 . In a preferred embodiment, the system of the present invention has means for activating at least one selected reviewing system  220  from the plurality of reviewing systems  220 , and each selected reviewing system  220  operates in response to the activating means. 
     In a preferred embodiment, the activating means of the selected reviewing systems  220  comprise an encryption unit, as described above with reference to the selection system  140 , and a decryption unit, as described above with reference to the reviewing system  220 . In this preferred embodiment, the encryption unit of the selection system  140  encrypts at least one signal segment  112  or auxiliary signal transmitted from the selection system  140  to the reviewing systems  220 . In this preferred embodiment, at least one of the plurality of reviewing systems  220  comprises a decryption unit which decrypts the encoded signal segment  112  or auxiliary signal received from the selection system  140 . Only those selected reviewing systems  220  that include a suitable decryption unit will operate in response to receiving the encrypted signal segment from the selection system  140 . 
     In another preferred embodiment, the selection system  140  contains a means for addressing a signal segment  112  or auxiliary signal to only selected reviewing systems  220 . The addressing means comprises an address unit, as described above in the description of the selection system  140 , and an address decoder, as described above in the description of the reviewing system  220 . In this preferred embodiment, the address unit of the selection system  140  addresses at least one signal segment  112  or auxiliary signal transmitted from the selection system  140  to the reviewing systems  220 . In a preferred embodiment, at least one of the plurality of reviewing systems  220  comprises an address decoder, which decodes the addressed signal segment  112  or auxiliary signal received from the selection system  140 . Only those selected reviewing systems  220  that include an address decoder will operate in response to receiving the addressed signal segment from the selection system  140 . 
     DEVICE FOR REVIEWING SIGNAL SEGMENTS 
     The reviewing system of the present invention for selecting and reviewing signal segments further encompasses a device for reviewing signal segments. The reviewing device provided by the present invention is described above in the specification as the reviewing system  220  of the system of selecting and reviewing signal segments of the present invention. FIG. 3 depicts a preferred embodiment of the device for reviewing signal segments. 
     METHOD FOR SELECTING AND REVIEWING SIGNAL SEGMENTS 
     FIG. 2 depicts a flow chart of a preferred embodiment of a method for selecting and reviewing signal segments of the present invention. The method includes the steps of receiving at least one signal; identifying at least one segment of at least one signal; transmitting at least one signal segment; receiving at least one signal segment; storing at least one signal segment; and reviewing information included in at least one signal segment. 
     Receive Signal Step 
     In a preferred embodiment depicted in FIG. 2, the receive signal step  410  is accomplished by receiving at least one transmitted signal such as the signal  110  depicted in FIG. 1, by a selection system, such as the selection system  140  depicted in FIG.  1 . As described more fully with reference to FIG. 1, the signal  110  can comprise a television signal, an image, an audio signal, a security system signal, a control signal, any combination thereof, or any other type of signal known to persons of skill in the art. As described more fully with reference to FIG. 1, the signal may also comprise an audio signal or data information. 
     As also described more fully with reference to FIG. 1, the selection system  140  can comprise a receiving device  132  which can receive at least one signal  110  by co-axial cable  130 , radio frequencies, wireless technologies, wire technologies, infra-red or fiber optic technologies, or any other means known to persons of skill in the art. The signal  110  received by the selection system  140  in the receive signal step  410  can be in either analog or digital format or any other signal format known to persons of skill in the art. 
     In a preferred embodiment not depicted in FIG. 2, as described more fully with reference to FIG. 1, the receive signal step further comprises the step of demodulating a received signal  110  to a baseband signal. 
     In a preferred embodiment not depicted in FIG. 2, and as described with reference to FIG. 1, the receive signal step comprises the step of converting at least one received analog signal, or any portion thereof, into a digital signal. The digital signal can be in any format known to persons of skill in the art, including formats having the characteristics of 16-bit pixels, 640×48 pixel resolution, and 30 frames per second. 
     In a preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the receive signal step comprises the further step of compressing digital signals or received digital signals, or both. 
     In a preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the receive signal step  410  further comprises the step of storing the received signals, the digital signals, the compressed signals or any combination thereof. 
     Identify Signal Segment Step 
     In a preferred embodiment depicted in FIG. 2, the identify signal segment step  420  is accomplished by a controller, such as controller  150  of FIG. 1, which identifies at least one segment, such as signal segment  112  of FIG. 1, of at least one signal, such as signal  110 , depicted in FIG.  1 . As described more fully with reference to FIG. 1, the signal segment  112  may comprise a portion of a signal  110 , a digital signal, a compressed signal, a stored signal or at least one image or audio signal, or any combination thereof. 
     In a preferred embodiment not depicted in FIG. 2, the identify signal segment step  420  comprises the step of manually identifying at least one signal segment  112 . The manual identify signal segment step is accomplished by a controller  150  comprising a manual identification system, as described more fully with reference to FIG.  1 . As also described more fully with reference to FIG. 1, the manual identification system comprises a reviewing unit and a control unit. 
     In another preferred embodiment not depicted in FIG. 2, the manual identify signal segment step comprises the further step of reviewing at least one signal, signal segment digital signal, compressed signal or stored signal. In another preferred embodiment not depicted in FIG. 2, the manual identify signal segment step, comprises the further step of manipulating the signals, the signal segment, the digital signals, the compressed signals, and the stored signals. The manipulating step of the manual identify signal segment step may be accomplished using a manipulation element and the reviewing unit of the manual identification system, as described above with reference to FIG.  1 . The manipulating step of the manual identify step also may be accomplished using a control unit in combination with a reviewing unit and a manipulation element of the manual identification system, or by other devices, systems and components as known to a person of skill in the art. 
     In another preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the identify signal segment step  420  is accomplished by a controller  150  responsive to a control signal. As described more fully with reference to FIG. 1, the control signal is received by the selection system  140  and contains information indicating when a signal segment  112  should begin, when a signal segment  112  should end, or both. In a preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the control signal is used to instruct the controller  150  to identify a signal segment  112  from another signal  10  received by a selection system  140 . In a preferred embodiment, not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the control signal indicates when each play at a sporting event begins and instructs the controller  150  to identify a signal segment  112  at the beginning of each play. 
     In another preferred embodiment not depicted in FIG. 2, the identify signal segment step  420  is accomplished by a controller  150  comprising an automatic identification system, as described more fully with reference to FIG.  1 . In another preferred embodiment not depicted in FIG. 2, the identify segment step  420  does not occur. 
     In another preferred embodiment not depicted in FIG. 2, the identify signal segment step  420  comprises the further step of generating at least one auxiliary signal. The auxiliary signal step is accomplished by an auxiliary unit, as described more fully with reference to FIG.  1 . As also described more fully with reference to FIG. 1, the auxiliary signal can comprise information describing at least one signal  110 , at least one signal segment  112 , or any information desired by the operator of the current method or the operator of the signal source(s). In another preferred embodiment not depicted in FIG. 2, the auxiliary signal step occurs in the transmit segment step  430 . 
     In another preferred embodiment not depicted in FIG. 2, the identify signal segment step  420  comprises the further step of encrypting at least one signal segment  112  or auxiliary signal or combination thereof. The encrypting step is accomplished using an encryption unit, as discussed more fully with reference to FIG.  1 . In another preferred embodiment not depicted in FIG. 2, the encrypting step occurs in the transmit signal segment step  430 . 
     In another preferred embodiment not depicted in FIG. 2, the identify signal segment step  420  comprises the further step of addressing at least one signal segment  112  or auxiliary signal or combination thereof. The addressing step is accomplished using an addressing unit, as discussed more fully with reference to FIG.  1 . In another preferred embodiment not depicted in FIG. 2, the addressing step occurs in the transmit segment step  430 . 
     Transmit Signal Segment Step 
     In the preferred embodiment depicted in FIG. 2, the transmit signal segment step  430  is accomplished by a transmitter, such as transmitter  134  depicted in FIG. 1, which transmits at least one signal segment, such as signal segment  112  (in either encrypted or unencrypted format) depicted in FIG. 1, or one auxiliary signal (in either encrypted or unencrypted format) to at least one reviewing system  220 , such as reviewing system  220  depicted in FIG.  1 . 
     As described more fully with reference to FIG. 1, in a preferred embodiment, the transmitter  134  uses radio frequencies  190  to transmit signal segments  112  or auxiliary signals to at least one reviewing system  220 . In an alternative preferred embodiment, and as described more fully with reference to FIG. 1, the transmit segment step  430  is accomplished using co-axial cable  180 , copper wire, laser signals, wireless technologies, wire technologies, infra-red or fiber optic technologies, or other means known to persons of skill in the art. In a preferred embodiment, the transmit signal segment step  430  is accomplished in digital format. In an alternative preferred embodiment, the transmit signal segment step  430  is accomplished in analog format. 
     In a preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the transmit signal segment step  430  uses an antenna, such as the antenna  185  depicted in FIG.  1 . As described above with reference to FIG. 1, the antenna can be either passive or active. As also described with reference to FIG. 1, the antenna can be located within or nearby the selection system  140 . 
     In a preferred embodiment not depicted in FIG. 2, the transmit signal segment step  430  further comprises a converting signal step, a compressing signal step, or a storing signal step, or any combination thereof. These further steps all more fully described in the description of the receive signal step  410  contained herein. 
     In a preferred embodiment not depicted in FIG. 2, the transmit signal segment step  430  further comprises an encrypting step or an addressing step or a combination thereof. These further steps are more fully described in the description of the identify signal segment step  420  contained herein. 
     In a preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the transmit signal segment step  430  occurs essentially simultaneously as the receive signal step  410  and identify signal segment step  420  occur. In a preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the transmit signal segment step  430  does not occur essentially simultaneously as the receive signal step  410  and identify signal segment step  420  occur. 
     In a preferred embodiment not depicted in FIG. 2, the transmit segment step  430  causes at least one signal segment  112  and at least one auxiliary signal to be transmitted essentially simultaneously. In another preferred embodiment not depicted in FIG. 2, the transmit segment step  430  causes at least one signal segment  112  to be transmitted at a different time than at least one auxiliary signal. 
     Receive Signal Segment Step 
     In the preferred embodiment depicted in FIG. 2, the receive signal segment step  440  is accomplished by transmitting a signal segment, such as signal segment  112  depicted in FIG. 1 or an auxiliary signal, from the selection system, such as selection system  140  depicted in FIG. 1, to a reviewing system, such as a reviewing system  220  as depicted in FIG.  1 . As described more fully with reference to FIG. 1, the reviewing system  220  comprises a segment receiver  215  which receives one or more signal segments  112  or auxiliary signals transmitted by the selection system  140 . In a preferred embodiment, the receive signal segment step  440  is accomplished using radio frequencies  190 , as described more fully with reference to FIG.  1 . In other preferred embodiments, the receive signal segment step  440  is accomplished using co-axial cable, lasers, copper wire, wire technologies, wireless technologies, infra-red technologies or other means known to persons of skill in the art. 
     In a preferred embodiment, the receive signal segment step  440  uses a flexible antenna, as described more fully with reference to FIG.  1 . In another preferred embodiment, the receive signal segment step  440  uses a non-flexible antenna, as described more fully with reference to FIG.  1 . The antenna used in the receive signal segment step  440  can be either external or internal to the reviewing system  220  or retractable, as described more fully with reference to FIG.  1 . 
     In another preferred embodiment not depicted in FIG. 2, the receive signal segment step  440  comprises the further step of decrypting an encrypted signal segment or auxiliary signal, or a combination thereof. In a preferred embodiment, the decrypting step is accomplished by a decryption unit, as described more fully with reference to FIG.  1 . As described more fully with reference to FIG. 1, the decryption unit comprises designs, components and circuitry for decrypting signal segments  112  and auxiliary signals, or a combination thereof, as are known to persons of skill in the art. 
     In another preferred embodiment not depicted in FIG. 2, the receive signal segment step  440  comprises the further step of operating in response to an addressed signal segment or an addressed auxiliary signal, or a combination thereof. In a preferred embodiment, the operating step is accomplished by an address decoder, as described more fully with reference to FIG.  1 . As described more fully with reference to FIG. 1, the address decoder comprises designs, components and circuitry for decrypting signal segments  112  or auxiliary signals, or a combination thereof; as are known to persons of skill in the art. 
     Store Signal Segment Step 
     In the preferred embodiment depicted in FIG. 2, the store signal segment step  450  is accomplished by storing at least one signal segment, such as signal segment  112  as depicted in FIG. 1, in at least one memory storage unit of a reviewing system, such as memory storage unit  212 , as depicted in FIG.  1 . In another preferred embodiment not depicted in FIG. 2, the store signal segment step also can be accomplished by storing at least one auxiliary signal in a memory storage unit, such as memory storage unit  212  as depicted in FIG.  1 . 
     As described more fully with reference to FIG. 1, the memory storage unit  212  may comprise digital recording chips, analog recording chips, or other means known to persons of skill in the art. As also described more fully with reference to FIG. 1, in a preferred embodiment, at least one memory storage unit  212  has capacity to store a signal segment  112  of at least 120-seconds in duration. As also described more fully with reference to FIG. 1, in a preferred embodiment, at least one memory storage unit  212  has capacity to store a signal segment  112  of at least 115-seconds in duration. As also described more fully with reference to FIG. 1, in a preferred embodiment, at least one memory storage unit  212  has capacity to store a signal segment  112  of at least 90-seconds in duration. As also described more fully with reference to FIG. 1, in a preferred embodiment, at least one memory storage has capacity to store a signal segment  112  of at least 45-seconds in duration. 
     Review Information Step 
     In the preferred embodiment depicted in FIG. 2, the review information step  460  is accomplished by reviewing information included in at least one signal segment  112  or at least one auxiliary signal (or a combination thereof) on at least one reviewing means, using for example at least one video screen  210  as depicted in FIG.  1 . As described more fully with reference to FIG. 1, in another preferred embodiment, the review information step  460  can be accomplished using at least one audio speaker or other reviewing device contained in the reviewing system  220 . 
     In a preferred embodiment not depicted in FIG. 2, the review information step  460  comprises the further step of manipulating information included in at least one signal segment  112  or auxiliary signal. As described above with reference to FIG. 1, this manipulating step can be accomplished by using at least one manipulating unit  216  and one video screen  210 , audio speaker, or other reviewing means. 
     In a preferred embodiment not depicted in FIG. 2, the manipulating step further comprises the step of changing the speed of review (i.e., fast-forwarding) of information included in at least one signal segment  112  or auxiliary signal. As described more fully with reference to FIG. 1, the fast-forwarding step may use at least one signal segment  112  or auxiliary signal and at least one video screen  210 , audio speaker, or other reviewing means. In a preferred embodiment, the fast-forwarding step further comprises the step of adjusting the speed at which the images derived from the signal segment  112  or auxiliary signal are fast-forwarded. 
     In a preferred embodiment not depicted in FIG. 2, the manipulating step further comprises the step of repeatedly reviewing (i.e., rewinding or playing back) information included in at least one signal segment  112  or auxiliary signal. As described more fully with reference to FIG. 1, the rewinding or playing back step may use at least one signal segment  112  or auxiliary signal and at least one video screen  210 , one audio speaker, or other reviewing means. In a preferred embodiment, the rewinding or playing back step further comprises the step of adjusting the speed at which the information included in the signal segment  112  or auxiliary signal are rewound or played back. 
     In a preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the manipulating step further comprises the step of freezing information included in at least one signal segment  112  or auxiliary signal. As described more fully with reference to FIG. 1, in one preferred embodiment, the freezing step comprises the freezing of at least one image on at least one video screen  210 . As described more fully with reference to FIG. 1, in another preferred embodiment, the freezing step comprises freezing of an image derived from at least one signal segment  112  or auxiliary signal on at least one audio speaker or at least one other reviewing means. 
     In a preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the manipulating step further comprises the step of reviewing images derived from at least one signal segment  112  or auxiliary signal in slow motion. As described more fully with reference to FIG. 1, this slow motion step uses at least one signal segment  112  or auxiliary signal and at least one video screen  210 , audio speaker, or other reviewing means. In a preferred embodiment, the slow motion step further comprises the step of adjusting the speed at which the images derived from at least one signal segment  112  or auxiliary signal are reviewed in slow motion. 
     In a preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the manipulating step further comprises the step of scaling information included in at least one signal segment  112  or auxiliary signal. As described more fully with reference to FIG. 1, in a preferred embodiment, the scaling step further comprises the step of enlarging the information. In another preferred embodiment, the scaling step further comprises the step of reducing the size of the information. In another preferred embodiment, the scaling step comprises the step of adjusting the size of the scaled image. In a preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the manipulating step may further comprise the step of selecting, for scaling, a portion of the image displayed on the video screen  210  of the reviewing means. 
     In a preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the method further comprises the step of transferring at least one signal segment  112  to a recording device. As described more fully with reference to FIG. 1, the recording device may comprise a VCR tape, a computer device or other device known to persons of skill in the art. 
     In a preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the method further comprises the step of erasing or deleting a signal segment  112 . The erasing or deleting step is accomplished by a change unit or other means known to persons of skill in the art. 
     Communications Path Step 
     In a preferred embodiment not depicted in FIG. 2, the method of the present invention comprises the additional step of establishing a communications path between a selection system and a reviewing system, such as selection system  140  and reviewing system  220 , as depicted in FIG.  1 . In a preferred embodiment, the communications path further comprises the steps of generating a control signal by the reviewing system  220  and transmitting the control signal from the reviewing system  220  to the selection system  140 . 
     In another preferred embodiment not depicted in FIG. 2, and as described more fully with reference to FIG. 1, the generating signal step comprises the further step of generating a control signal in response to information included in an auxiliary signal received by the reviewing system  220 . 
     Generating Signal Step 
     In a preferred embodiment not depicted in FIG. 2, the generating signal step is accomplished using at least one signal generator in a reviewing system, such as the signal generator in reviewing system  220 , as described more fully with reference to FIG.  1 . In another preferred embodiment not depicted in FIG. 2, the generating signal step further comprises the step of generating a control signal in response to information included in the auxiliary signals, as described more fully with reference to FIG.  1 . This auxiliary response step is accomplished by a selection device and a signal generator in the reviewing unit  220 , such as the selection device and signal generator, as described more fully with reference to FIG.  1 . 
     As described more fully with reference to FIG. 1, the selection device of the reviewing system  220  enables the user of the reviewing system  220  to select a signal segment  112  based on information included in the auxiliary signal. The signal generator of the reviewing system  220  generates at least one control signal in response to the selection of a desired signal segment by the user of the reviewing system  220 . 
     Transmit Signal Step 
     In a preferred embodiment not depicted in FIG. 2, the transmit signal step is accomplished by a transmit unit in the reviewing system, such as the transmit unit in reviewing system  220  as described more fully with reference to FIG.  1 . In a preferred embodiment, the transmit signal step transmits the control signal generated by the reviewing system  220  to the selection system  140 , as described more fully with reference to FIG.  1 . In a preferred embodiment the transmit signal step transmits a control signal from the reviewing system  220  to the selection system  140  in response to the selection of at least one desired signal segment  112  by the user of the reviewing system  220  based on information in the auxiliary system, as described more fully with reference to FIG.  1 . 
     Segment Flag Step 
     In a preferred embodiment not depicted in FIG. 2, the method of the present invention further comprises the step of flagging a signal segment, in response to a user-flag signal, by a reviewing system, such as signal segment  112  and reviewing system  220  depicted in FIG.  1 . As described with reference to FIG. 1, a user-flag signal may comprise an audio signal (including an audio signal generated by a voice, buzzer or a whistle), a video signal, or any other type of signal known to persons of skill in the art. In a preferred embodiment and as described more fully with reference to FIG. 1, the segment flag step responds to an audio user-flag signal. In another preferred embodiment, the user-flag signal is a signal generated by an official&#39;s whistle at a football game. As described more fully with reference to FIG. 1, the segment flag step is accomplished using a receiver and a marker in a reviewing system, such as the receiver and the marker in reviewing system  220 . 
     Rewind Step 
     In another preferred embodiment not depicted in FIG. 2, the method of the present invention comprises the step of flagging a portion of at least one signal segment in response to a user-rewind signal. As described more fully with reference to FIG. 1, the rewind step is accomplished using a user-rewind signal, and a receiver and a rewind unit of a reviewing system, such as the user-rewind signal and the receiver and rewind unit included in reviewing system  220 . 
     Bookmark Step 
     In another preferred embodiment not depicted in FIG. 2, the method of the present invention comprises the step of flagging a portion of at least one signal segment  112  using a bookmark signal, such as the bookmark signal, as described more fully with reference to FIG.  1 . The bookmark step is accomplished using a marker, a selection device or other means for flagging or marking as known to persons of skill in the art, as described more fully with reference to FIG.  1 . 
     Simultaneous Operation of Steps 
     In a preferred embodiment, several steps in the method depicted in the flow chart in FIG. 2 can be performed essentially simultaneously with respect to at least one signal segment  112  or auxiliary signal. For example, in a preferred embodiment, the receiving signal segment step  440 , the storing signal segment step  450 , and the reviewing information included in the signal segment step  460  operate essentially simultaneously in response to at least one signal segment  112  or auxiliary signal. As described more fully with reference to FIG. 1, the essentially simultaneous operation may be accomplished using a segment receiver  215  to receive a signal segment  112  or auxiliary signal, a memory storage unit  212  to store the same signal segment  112  or auxiliary signal, and a video screen  210 , audio speaker or other reviewing means to review information included in the same signal segment  112  or auxiliary signal. 
     In another preferred embodiment, the receive signal segment step  440 , the storing signal segment step  450 , and the review information included in signal segment step  460  (including the manipulating step) operate essentially simultaneously in response to at least one signal segment  112  or auxiliary signal. As described more fully with reference to FIG. 1, the simultaneous operation may be accomplished using a segment receiver  215  to receive a signal segment  112 , a memory storage unit  212  to store the same signal segment, and a video screen  210 , audio speaker or other reviewing means to review and manipulate the same signal segment  112 . The same operations can be performed essentially simultaneously with respect to an auxiliary signal, as described more fully with reference to FIG.  1 . 
     In a preferred embodiment not depicted in FIG. 2, the steps of the method of the present invention may also be performed in any order, as will be apparent to one of skill in the art from review of this specification or from using the system or method of the present invention. 
     METHOD FOR REVIEWING SIGNAL SEGMENTS 
     FIG. 4 depicts a flow chart of the preferred embodiment of a method for reviewing signal segments. The method includes receiving at least one signal segment step  510 , storing at least one signal segment step  520 , and reviewing information included in at least one signal segment step  530 . These steps, and means for implementing them, are described more fully in reference to FIGS. 1 and 2. 
     It will be apparent to those skilled in the art that various modifications can be made to this invention of a system and method for selecting and reviewing signal segments, without departing from the scope or spirit of the invention. It is also intended that the present invention cover modifications and variations of the system and method for selecting and reviewing signal segments within the scope of the foregoing description and its equivalents. 
     It will be apparent to those skilled in the art that various modifications can be made to this invention of a system, device and method for reviewing signal segments, without departing from the scope or spirit of the invention. It is also intended that the present inventions cover modifications and variations of the system, device and method for reviewing signal segments within the scope of the foregoing description and its equivalents.