Wireless multi-user multi-projector presentation system
First Claim
1. A system for integrating and coordinating a plurality of media presentation displays comprising:
- at least one media source having a media sequence;
for each media source, a presentation controller responsive to the media source, and connected via a video output port to receive the media sequence from the media source, the presentation controller being operable for wireless communication;
a presentation server operable for wireless communication with each presentation controller such that the presentation server receives the media sequences of each media source, the presentation server comprising an arbitrator responsive to each presentation controller and operable to selectively display the media sequences from the media sources sequentially or simultaneously; and
at least one media presentation display connected to the presentation server, each presentation display being responsive to the presentation server and operable to display the media sequence of the media sources.
2 Assignments
0 Petitions
Accused Products
Abstract
Media slides are often employed in conference sessions, meetings, lectures, and other interactive forums. The proliferation of laptops and handheld computers allows a speaker to present directly from the laptop by connecting to the projector at the conference site. Physically connecting and disconnecting each presenter'"'"'s laptop to the projection apparatus, however, can be a clumsy and disruptive process, particularly since the presenters may be seated at various locations around the room. A wireless interface between a presentation server and a laptop in a multi-user multi-projector presentation system allows a media sequence from each media source to be displayed on a common display via the presentation server and the wireless interface. Presenters need not run or swap cables or other physical connections to switch media sources to the common display. The interface requires no software modification to the media source laptops and maintains independence between media sources and the server for security. The presentation server communicates with the media sources over the mouse port allowing innovative user interfaces, such as gesture recognition, to be employed for presentation control without additional software. Multiple projectors redundantly illuminate the display surface, dynamically eliminating shadows and other display artifacts when presenters walk between a projector and the screen. Distracting projected light cast on to the occluding presenters is automatically suppressed.
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Citations
23 Claims
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1. A system for integrating and coordinating a plurality of media presentation displays comprising:
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at least one media source having a media sequence; for each media source, a presentation controller responsive to the media source, and connected via a video output port to receive the media sequence from the media source, the presentation controller being operable for wireless communication; a presentation server operable for wireless communication with each presentation controller such that the presentation server receives the media sequences of each media source, the presentation server comprising an arbitrator responsive to each presentation controller and operable to selectively display the media sequences from the media sources sequentially or simultaneously; and at least one media presentation display connected to the presentation server, each presentation display being responsive to the presentation server and operable to display the media sequence of the media sources. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of transmitting presentation data from a media source to a media presenter comprising:
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establishing a wireless link between the media source and the media presenter, the media source having a media sequence comprising frames; transmitting at least one frame from the media source to the media presenter; rendering a displayed image by the media presenter on a common medium based on the transmitted frame; selectively arbitrating among media sequences transmitted from each of a plurality of media sources; and selectively transmitting at least a portion of a subsequent frame in the media sequence from the media source to the media presenter when a measurable difference in images from one frame to another frame is detected in the media sequence. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A computer program product having computer program code for transmitting presentation data from a media source to a media presenter comprising:
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computer program code for establishing a wireless link between the media source and the media presenter, the media source having a media sequence comprising frames; computer program code for transmitting at least one frame from the media source to the media presenter; computer program code for rendering a displayed image by the media presenter on a common medium based on the transmitted frame; computer program code for selectively arbitrating among media sequences transmitted from each of a plurality of media sources; and computer program code for selectively transmitting at least a portion of a subsequent frame in the media sequence from the media source to the media presenter when a measurable difference in images from one frame to another frame is detected in the media sequence.
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22. A computer data signal including program code for transmitting presentation data from a media source to a media presenter comprising:
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program code for establishing a wireless link between the media source and the media presenter, the media source having a media sequence comprising frames; program code for transmitting at least one frame from the media source to the media presenter; program code for rendering a displayed image by the media presenter on a common medium based on the transmitted frame; program code for selectively arbitrating among media sequences transmitted from each of a plurality of media sources; and program code for selectively transmitting at least a portion of a subsequent frame in the media sequence from the media source to the media presenter when a measurable difference in images from one frame to another frame is detected in the media sequence.
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23. A system for integrating and coordinating a plurality of media presentation displays comprising:
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means for establishing a wireless link between the media source and the media presentation display, the media source having a media sequence comprising frames; means for transmitting at least one frame from the media source to the media presentation display; means for rendering a displayed image by the media presentation display on a common medium based on the transmitted frame; means for selectively arbitrating among media sequences transmitted from each of a plurality of media sources; and means for selectively transmitting at least a portion of a subsequent frame in the media sequence from the media source to the media presentation display when a measurable difference in images from one frame to another frame is detected in the media sequence.
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Specification