Abstract:
A method for customizing a presentation of a set of digital images provided by a user is disclosed, comprising the steps of selecting an initial presentation format criteria for the set of digital images by the user; analyzing the digital images for additional information; providing to the user a first portable electronic storage medium having the set of digital images stored thereon, the images capable of being presented to the user on a display device in accordance with a first presentation format based upon the initial selected presentation format criteria and the analysis of the additional information; and providing a software program to the user enabling the user to select additional presentation format criteria.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS  
       [0001]     This is a continuation of U.S. application Ser. No. 10/178,976 filed Jun. 25, 2002. 
     
    
     FIELD OF THE INVENTION  
       [0002]     This invention is in the field of multimedia authoring systems and software and, more particularly, it is in the field of template-based multimedia authoring systems and software where an initial multimedia presentation may be easily edited or otherwise modified by a user to create an improved presentation.  
       BACKGROUND OF THE INVENTION  
       [0003]     It is widely recognized that viewing images in the form of a multimedia presentation is much more compelling than simply skimming through a stack of hard-copy prints, or looking at a series of static images presented sequentially using a slide projector, computer, or television screen. The addition of other elements to the presentation such as a sound track appropriate to the content of the images, the insertion of interesting transitions between the images, the addition of a video clip or the creation of various video-style special effects including fades and dissolves, image-collaging, or colorization makes the presentation much more interesting to the viewer and can greatly enhance the emotional content of the images being presented. The proliferation in the home of new television-based viewing platforms able to accommodate multimedia, including DVD or Video CD players, also increases the demand for this type of presentation.  
         [0004]     For the ordinary photographic consumer, the creation of a multimedia presentation is not presently very convenient. Even if the images are available in digital form, a consumer must have facility with multimedia authoring software tools such as Macromedia Director™ or Adobe Premier™ in order to create such a presentation. These software tools, while very flexible, are aimed more at the professional presentation creator, have multiple options, and require a great deal of time and experience to develop the skill needed to use them to advantage. More recently, template-based multimedia presentation applications such as Photojam™, offered by Shockwave.com, or PC-based “movie making” applications such as Apple&#39;s I-Movie™ have become available. While these applications can simplify the creation of multi-media presentations for a consumer, they offer only a limited choice of initial presentation options, or do not offer much in the way of enabling the user to easily edit and improve the initial presentation. In addition, these applications offer no way for a user to easily and conveniently access various kinds of additional material such as stock images, graphics, video, sound clips, either public domain or copyrighted material, which could be used to make presentations much more exciting and compelling.  
         [0005]     Thus, there remains a need for a simplified authoring system where an inexperienced user can easily create, edit, update, and customize a multimedia presentation and then obtain copies of the presentation in a variety of storage formats useful with multiple types of presentation devices.  
       SUMMARY OF THE INVENTION  
       [0006]     In answer to these and other needs, and in accordance with one aspect of the present invention, there is provided a method for customizing a presentation of a set of digital images provided by a user, comprising the steps of selecting an initial presentation format criteria for the set of digital images by the user; analyzing the digital images for additional information; providing to the user a first portable electronic storage medium having the set of digital images stored thereon, the images capable of being presented to the user on a display device in accordance with a first presentation format based upon the initial selected presentation format criteria and the analysis of the additional information; and providing a software program to the user enabling the user to select additional presentation format criteria.  
         [0007]     In accordance with another aspect of the present invention, there is provided a method for customizing a presentation of a set of digital images provided by a user, comprising the steps of selecting an initial presentation format criteria for the set of digital images by the user; analyzing the digital images for additional information; providing the digital images in association with a first presentation format that can be viewed by the user, the format selected in accordance with the initial selected presentation format criteria and the analysis of the additional information, the presentation also including a selection menu for providing instructions for modifying and/or changing the presentation to a second presentation format; selecting the instructions for modifying and/or organizing the presentation; and forwarding the selected instructions to a service provider for implementing with regard to a modified format and representing the images in association therewith to the user.  
         [0008]     In accordance with yet another aspect of the present invention, there is provided a method for customizing a presentation of a set of digital images provided by a user, comprising the steps of: analyzing the digital images for semantic information; and providing the digital images in association with a first presentation format that can be viewed by the user, the format automatically selected in accordance with the semantic information.  
         [0009]     In accordance with still another aspect of the present invention, there is also provided a portable electronic storage medium having at least one digital image stored thereon, the at least one digital image capable of being presented to a user on a display device wherein the at least one digital image displayed in accordance with a first presentation format, and a software program having the ability to present the at least one digital image in accordance with a second presentation format different from the first presentation format.  
         [0010]     In accordance with still another aspect of the present invention, there is also provided a portable electronic storage medium having at least one digital image stored thereon, the at least one digital image being capable of being presented to a user on a display device in association with at least one sample presentation format, and a software program for presenting the at least one digital image with respect to a plurality of partial presentation formats and means for selecting one of the plurality of partial presentation formats so that an entire presentation format associated with the partial presentation format can be applied to the digital image.  
         [0011]     In accordance with still another aspect of the present invention, there is also provided a portable electronic storage medium having at least one digital low resolution image stored thereon, the at least one digital low resolution image being capable of being presented to a user on a display device in association with a plurality of different sample presentation formats, and a software program for presenting the at least one digital low resolution image with respect to the plurality of sample presentation formats and means for selecting one of the plurality of sample presentation formats so that an entire presentation format associated with the sample presentation format can be applied to an associated high resolution digital image, stored separately by a service provider, with the low resolution digital image.  
         [0012]     These and other aspects, objects, features and advantages of the present invention will be more clearly understood and appreciated from a review of the following detailed description of the preferred embodiments and appended claims, and by reference to the accompanying drawings. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0013]     In the detailed description of the preferred embodiments of the invention presented below, reference is made to the accompanying drawings in which:  
         [0014]      FIG. 1  depicts a block diagram for a system made in accordance with the present invention;  
         [0015]      FIG. 2  depicts a flow chart illustrating the steps required in the practice of an embodiment of the present invention;  
         [0016]      FIG. 3  depicts a photographic services request bag useful in the practice of the present invention;  
         [0017]      FIG. 4  depicts a flow chart illustrating the steps required in the practice of an alternative embodiment of the present invention;  
         [0018]      FIG. 5  depicts a system block diagram for a service kiosk useful in the practice of the present invention;  
         [0019]      FIG. 6  depicts a flow chart illustrating the steps required in the practice of an alternative embodiment of the present invention; and  
         [0020]      FIG. 7  depicts a flow chart illustrating the steps required in the practice of an alternative embodiment of the present invention. 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0021]     Turning first to  FIG. 1 , there is shown an overall diagram for a system  10  according to the present invention for providing a multimedia presentation to a user on an image storage and playback media disk  15 . Disk  15  is playable on a user&#39;s computer  20 , video CD (VCD) player  25 , or DVD player  30 , set-top box or game box (not shown) where these latter players are connected to the user&#39;s television set  35 . To initiate a request for a multimedia presentation, the user first provides images and other content to a photo service provider  40 . As shown in  FIG. 1 , in one embodiment of the invention images are provided to the photo service provider  40  in the form of unprocessed exposed film  45 , negatives  50 , or prints  55  at a service drop-off location  60 . Multimedia material such as videotape  65  or audio cassette  70  may also be provided. In addition, images and multimedia material may be provided in digital form on various kinds of removable memory such as a flash memory card  75  or computer disk  80 . The images or multimedia materials are sent by conventional transportation means  85  to the photo service provider  40  for processing and preparation. As an alternative, where images and multimedia material are provided in digital form on a removable flash memory card  75  or disk  80 , the data from these media may be read out at the service drop-off location  60  and transferred electronically to photo service provider  40  by means of a communications network such as the Internet  90 . In this way the removable memory devices may be returned to the customer immediately. In another embodiment, described in more detail later, images and multimedia content may be provided by a user from a service kiosk  95 , again using removable memory devices such as a flash memory card  75 , or computer disks  80  or  100 . Data collected by readers (not shown in  FIG. 1 ) at the service kiosk  95  is transferred electronically to the photo service provider  40  via the Internet  90 . In yet another embodiment (described in more detail later), images and multimedia material may be uploaded directly from a user&#39;s computer  20  to photo service provider  40  using the Internet  90 . In certain other embodiments to be described later, part of the content of the multimedia presentation may be derived from a third party content provider  105  in communication with the photo service provider  40  via the Internet  90 . Once a multimedia presentation disk  15  has been prepared and ordered by a user, it is delivered to the user via conventional delivery means  110  including, for example, the US mail service or one of a number of the well-known private delivery carriers.  
         [0022]     In order to more completely explain the present invention, the operation of several preferred embodiments will now be described in detail. Referring first to  FIG. 2 , there is shown a flowchart illustrating the operation of a preferred embodiment of the invention. Initially, in step  120 , a user provides an account or user I.D. number, if one exists, to photo service provider  40 , submits images or other multimedia materials and selects a format for a first multimedia presentation. If there is no pre-existing account, the user will be prompted to initiate one. Images may be submitted to the photo service provider  40  in any number of ways. For example, the user may submit a roll of exposed film or a one-time use camera containing exposed film, or strips of negatives which have been suitably marked to indicate the images to be included in the multimedia presentation. Positive transparencies, or photographic prints may also be supplied to the service provider  40 . Digital images stored on a flash memory card, magnetic or optical computer storage disk, or other type of removable digital memory device may also be submitted. Video or audio tapes along with information indicating the selection of video scene or audio segment may also be included. In  FIG. 3 , a photo service request bag  125  useful for the practice of this embodiment of the invention is shown. After first filling out the customer name and address and user ID number information on lines  130 , the user selects the “multimedia disk” option box  135 . The user specifies the types of multimedia materials (as described above ) submitted by checking the boxes in section  140  of the form. The user also selects the options to be included in the first presentation, including “THEME/STYLE”  145 , “MUSIC TYPE”  150  and type of “TRANSITIONS”  155  desired. It should be understood that the invention is not limited to the format options illustrated here, and that within the scope of the invention, there may be also other types format selection choices offered to the user such as, for example, options relating to the overall mood of the presentation (e.g., “happy”, “somber”, etc) or relating to a particular event (Daytona 500 race) or venue-related theme (Disney World). Multimedia materials are placed in the bag and the bag is then submitted at a photo service pick-up location.  
         [0023]     As an alternative to submitting images and multimedia materials at a service drop off point, a user may also submit images to photo service provider  40  in step  120  by electronic transfer. Digital images along with presentation format selections may be uploaded directly to photo service provider  40  from the user&#39;s personal computer using the Internet, or from a service kiosk connected to the service provider by a communications network where images are brought to the kiosk by a user on any kind of removable memory storage device such as a flash memory card, or magnetic or optical computer storage disk. In addition, digital images already pre-stored in a pre-existing account with photo service provider  40  can be specified for requesting a multimedia presentation. For example images stored in an on-line photoalbum such as those offered by the Internet-based photo site, Ofoto™ may be specified. Pre-stored digital images along with presentation formats may be specified by a user by any means of communicating with the service provider over a communications network including a user&#39;s personal computer, or from a kiosk, or by telephone, or by submitting a paper request form (not shown) to the photo service provider  40 .  
         [0024]     Returning again to  FIG. 2 , once a user has submitted images and/or other multimedia materials and a selection of presentation formats to the photo service provider  40 , in step  160  the photo service provider  40  next prepares the images, should this be required (e.g., the service provider  40  processes any exposed film submitted and/or digitizes the images from hard copy images or from the video or audio tape submitted.) If digital images have been supplied by the user, these images may include additional information in the form of image metadata which can contain, among other things, information regarding the date, time and location where the image was recorded, or information about the subject matter of the image. Any such metadata present with the images is also analyzed by the service provider in step  160 . Additional information regarding the images supplied may also include the orientation of the image (“landscape” or “portrait” orientation), which may be determined by an automatic analysis of digital image files by methods well known in the art. The presence and elimination of any blank frames which may be present in film which has been submitted may also be determined, again by well known methods, and these frames automatically eliminated from any subsequent presentation format, also in step  160 . If a user already has an established account with the service provider  40  and has supplied a user ID or account number in step  120 , the service provider  40  in step  165  consults a database of stored past user preferences to determine if the user has requested multimedia disks in the past, and, if so, which presentation formats had been requested. Next, in step  170 , the service provider prepares a first multimedia presentation disk, based upon the user-selected format, metadata information and past preferences of the user. As an example of how this metadata information may be used, the metadata may contain information about the dates or times or subjects of the images supplied, and this information may be used to group the images in the first presentation in a certain way, or present them in a particular order. This grouping can be achieved using an event clustering algorithm such as the one described in U.S. Pat. No. 6,351,556, to Loui and Pavie, which discloses a method for automatically comparing the content of images for classification by event. In addition, the image content can be analyzed using computer vision and image understanding algorithms to detect a main subject of interest, or to classify it into different scenes, e.g., birthday party, graduation, wedding, picnic, beach activities, etc. This semantic information may be used to influence the overall theme, transitions, special effects, and music choices of the presentation. Past preferences of the user may also influence the first presentation. If, for example, the user had selected music type “Rock” ( FIG. 3, 175 ) on the request bag  125  and the database of past preferences shows that, in the past, the user had ultimately preferred “Contemporary Rock” more often than “60&#39;s Rock” in the final presentation, then a “Contemporary Rock” soundtrack may be supplied with the initial presentation. With the user&#39;s images and multimedia materials, format selections and past preferences in hand, the service provider  40  assembles the first multimedia presentation by selecting from a set of pre-established and stored template files and adding the user&#39;s data files to the selected templates. The pre-established templates contain design features relating to the overall style, theme, type of transitions, etc., of the presentation which have been requested by the user. In addition, stored audio clips relating to the choices specified by the user and sized appropriately for length to provide a soundtrack to the presentation are added to the template at this point. The automated template feature will assemble and compose all the necessary materials into a multimedia composition. Then an appropriate encoding (such as MPEG) will be carried out to compress the multimedia composition into a multimedia bitstream for playback using for example a DVD player. Such a template-based method particularly useful for authoring a multimedia disk is disclosed in the commonly assigned, co-pending U.S. patent application Ser. No. 09/885,577 herein incorporated by reference. Finally, the service provider  40  writes the multimedia bit stream to a computer storage disk and sends the disk to the user. The service provider  40  may choose to write the multimedia image data to the disk in a resolution lower than that of the image data available in stored form, in order to better fit the data density requirements of the particular storage medium employed. The disk may be sent by mail or package delivery service to the user, or the user may pick up the first disk at a service pick-up location. In step  180 , the user views the first presentation disk using a DVD or VCD player, or a personal computer. In decision step  185 , if the user is satisfied with the first presentation, then the process ends with step  190 . If, on the other hand, in step  185  the user is not satisfied with the first presentation, she then accesses a selection of new presentation formats in step  195  by downloading them from the service provider  40  to his/her personal computer using the Internet. The user then makes new format choices in step  200 . Alternatively, the new presentation choices may be supplied on the original first presentation disk along with appropriate software to enable their viewing and selection. The choice of new presentation formats provided to the user may be made in an adaptive manner since, for example in step  205 , the service provider  40  is continuously monitoring a user&#39;s choices in real time and modifying the selection of new formats offered, based upon these past choices. Also in step  200 , using software tools well-known in the art, the user has the opportunity to further edit the presentation through the addition or deletion of images, or by cropping, rotating or adding captions to images. Next, in step  210 , the user previews the revised presentation and decides in step  215  if she is satisfied with it. If the new presentation meets expectations, the user places an order for the new presentation in step  220 . If the new presentation does not meet expectations in decision step  215 , then the user is returned to the previous step  200  to make new selections and the cycle of selecting and previewing continues until the user is satisfied with the presentation. Once the order for a new presentation has been placed in step  220 , the provider stores the user&#39;s final selections in a database in step  225  for use in aiding with future presentations which may be requested (see step  165 ). Finally, in step  230 , the new presentation disk is produced and sent to the user by mail or delivery service. Alternatively, the user may be notified that the new presentation disk is available for at a service pick-up location. In yet another alternative, where the user possesses a compact disk writer, the user may elect to download the final presentation to her personal computer and write the presentation disk locally. Payment for the presentation may be by credit card over a network, or tendered at the service pick-up location by any of the usual means.  
         [0025]     A third party supplier can be an alternative source of presentation format options for a user to select from in revising the first presentation, and in  FIG. 4  is shown the operation of such an embodiment of the invention. The embodiment of  FIG. 4  operates exactly as the embodiment of  FIG. 1  until the completion of step  185  (point A in  FIG. 2 ) at which point the description continues in  FIG. 4  at point A with like numbers indicating like steps in both  FIGS. 2 and 4 . In step  195  when a user accesses new presentation formats by downloading them from the service provider&#39;s website, some of these formats may be supplied by a third party supplier in step  197 . Examples of third party-supplied presentation formats include, but are not limited to, sound clips for inclusion in the soundtrack of the presentation, stock images including still images or video clips which have subject matter related to the subject of the presentation and which add interest and variety to the presentation. As an example, if a user has supplied images from a family trip to the Winter 2002 Olympics, a third party site may offer a video clip of the opening ceremonies of the Olympics for inclusion in the presentation, or a sound clip of the “Olympic Fanfare” for use on a portion of the soundtrack. Copyrights needed for any of the third party supplied material are handled by the third party and means for sharing revenue between the service provider  40  and the third party are arranged automatically and in a way transparent to the user (see later steps in  FIG. 4 ). Selections supplied by a third party may be indicated as such on the service provider&#39;s website, or not, depending upon the arrangement between the service provider  40  and third party. Advertising messages relating to a third party may also be displayed on the service provider&#39;s website, again depending upon the contractual arrangement between service provider  40  and the third party.  
         [0026]     Continuing with  FIG. 4 , steps  200  through  225  are identical to the corresponding steps of the embodiment of  FIG. 2 . A determination is made in step  230  if any format selections had been provided by a third party and, if this was the case, then the portion of revenue due the third party is computed and forwarded to the third party by the service provider  40  in step  235 . In step  240  the new presentation disk is produced and the final payment due is computed taking into account any third party charges. Finally, in step  245 , the provider collects payment from the user as described previously for other embodiments, and the presentation is delivered to the user.  
         [0027]     In yet another embodiment of the invention, the delivery of the first presentation format to a user and the user&#39;s subsequent modification to the presentation is carried out in a real-time interactive mode. The invention may be practiced in such an interactive mode using, for example, a service kiosk having image display capability where the user first specifies images and selects initial presentation criteria, and then views the first presentation format directly without the need to provide a first presentation on a disk to the user. After an initial review of the first presentation, the user is able to access a selection of new formats directly at the kiosk and preview the new presentation and approve it before a final disk containing the user&#39;s final choice of presentation format is produced. A block diagram of the components of such a service kiosk is shown in  FIG. 5 . Referring to  FIG. 5 , kiosk  95  comprises essentially a CPU  250  connected to touch-screen display  255  for displaying a multimedia presentation to a user and enabling the user to make selections of presentation formats. Connected to the computer  250  are inputs  260  for accepting flash memory cards,  265  for accepting magnetic computer storage disks, and  270  for accepting CD-ROM storage disks. The computer  250  in kiosk  95  is connected to photo service provider  40  via a communications network  90 , such as the Internet, and is loaded with software and a user interface appropriate to the interactive creation of a multimedia presentation disk as described in detail below. Also connected to computer  250  are compact disk writer  275  and DVD writer  280  for writing the final disk selection for the user. Credit card reader  285  for accepting payment is also connected to CPU  250 .  
         [0028]     Referring now to  FIG. 6 , the steps in detail to be carried out in the operation of this interactive embodiment of the invention are shown. As in previously described embodiments, the user first provides hard copy or digital images and multimedia material to be included in the presentation to a service provider  40  (step  290 ) and the service provider  40  prepares the images and analyzes them for information (step  295 ) as in the embodiments already described. Once the images have been prepared and posted to the user&#39;s account, the user may access at any time his account at a service kiosk location where, in step  300 , the service provider  40  provides an initial set of presentation format options. The options offered initially can be, for example, identical to the options offered on the photo service request bag shown in  FIG. 3 , except that in this interactive embodiment of the invention, examples of the actual appearance of the options are shown to the user using the image display capability of the service kiosk to aid in the selection process. As an example, if the “Halloween” theme is selected, a portion of a sample presentation in which the “Halloween” theme is used is shown to the user. After he is satisfied with previewing the various presentation options, the user designates the particular presentation format options he wishes to have using, for example, a touch screen user interface in step  305 . The provider then prepares the initial presentation format in accordance with the user&#39;s selected criteria and any analyzed information available and plays the initial presentation for the user by means of the kiosk&#39;s image display capability (step  310 ). The service provider  40  may choose to provide the multimedia image data to the kiosk in a resolution lower than that of the image data available in stored form, in order to better fit the data transmission requirements of the particular communications network  90  employed. Turning for a moment to  FIG. 7 , there is shown a further variation in the initial steps of this interactive embodiment of the invention where the user provides only images and does not need to make any selection of presentation criteria for the first presentation. In this variation, the user first provides images to the service provider  40  in step  315  as previously described. In step  320 , the service provider  40  prepares the images and analyzes them for information regarding, for example, the date, time or location of image capture which may be present in the metadata for the image. In addition to the information in the image metadata available for the images provided, the service provider  40  also may use various image understanding algorithms to automatically determine the subject matter of at least some of the images. For example, object recognition algorithms may be applied to the digital images to determine if well-known cultural icons are present such as, for example, Christmas trees, birthday parties or graduation robes. The presence of such icons in the images allows a reasonable inference regarding the type of event which may have been the occasion for the images to be captured. Such information will provide user specific information for selecting overall theme, mood, and music. For example, if the images are analyzed to be of a particular season likes winter, the authoring system can selectively offer music suitable for winter season. The choices can be further refined with the knowledge of the type of event such as Christmas celebration. In addition, the service provider  40  also examines the database of past preferences of the particular customer in presentation formats, including types of transitions, choices of music for the sound track, etc. Based on all this information, the service provider  40  then creates and displays an initial presentation format to the user in step  325 .  
         [0029]     Returning now to  FIG. 6 , the sequence of steps for both the interactive embodiments of  FIG. 6  and  FIG. 7  begin again at point B in  FIG. 6 . In step  330 , the user views the trial presentation format on the kiosk&#39;s display and if he is satisfied with it (step  335 ), then a disk is written locally at the service kiosk and provided to the customer in step  340  and payment is also collected.  
         [0030]     The remaining steps in both interactive embodiments are now identical to the embodiment of  FIG. 1 , beginning at point A in  FIG. 2 . Still working at the kiosk, if the user was not satisfied with the first presentation in step  335 , he is able to access a selection of new presentation formats, select new criteria, add/delete or edit images, etc, and repeat these steps just as previously described for the embodiment of  FIG. 2  until he is satisfied with the presentation. As before, once satisfied, the user places an order and receives and pays for a copy of his presentation written on a media disk at the kiosk. It should be appreciated that while lower resolution data may have been employed in order to supply trial presentations for display at the kiosk  95 , the data written to the media disk may utilize the full image resolution available in the stored image data files.  
         [0031]     It will also be understood that such an interactive embodiment, essentially like that just described, may also be practiced by a user from a personal computer where initial format selections are made and an initial presentation is viewed and modified without creating a first presentation disk. In this variation, the final presentation would be downloaded and written to a disk locally at the user&#39;s personal computer.  
         [0032]     The invention has been described in detail with particular reference to certain preferred embodiments thereof, but it will be understood that variations and modifications can be effected within the scope of the invention.  
       PARTS LIST  
       [0000]    
       
           10  system  
           15  playback media disk  
           20  computer  
           25  video CD player  
           30  DVD player  
           35  television set  
           40  photo service provider  
           45  exposed film  
           50  photo negatives  
           55  photo prints  
           60  service drop off location  
           65  video tape  
           70  audio cassette  
           75  flash memory card  
           80  computer disk  
           85  transportation means  
           90  Internet  
           95  service kiosk  
           100  computer disk  
           105  third party content provider  
           110  conventional delivery means  
           120  step  
           125  photo service request bag  
           130  address/ID entry space  
           135  service option selection box  
           140  processing options selection boxes  
           145  presentation format options  
           150  presentation format options  
           155  presentation format options  
           160  step  
           165  step  
           170  step  
           175  presentation format option  
           180  step  
           185  step  
           190  step  
           195  step  
           197  step  
           200  step  
           205  step  
           210  step  
           215  step  
           220  step  
           225  step  
           230  step  
           235  step  
           240  step  
           245  step  
           250  CPU  
           255  touch-screen display  
           260  memory card reader  
           265  magnetic disk reader  
           270  compact disk reader  
           275  compact disk writer  
           280  DVD writer  
           285  credit card reader  
           290  step  
           295  step  
           300  step  
           305  step  
           310  step  
           315  step  
           320  step  
           325  step  
           330  step  
           335  step  
           340  step