System And Method For Establishing And Maintaining Synchronization Of Isochronous Audio And Video Information Streams in Wireless Multimedia Applications
First Claim
1. A system for establishing and maintaining synchronization of isochronous audio, video, and data information streams in wireless multimedia applications, the system comprising:
- a media source device capable of sending multimedia content;
a media consumer device capable of receiving said multimedia content;
control signals that are exchanged between said media source device and said media consumer device; and
an algorithm that uses said control signals to synchronize isochronous video and audio streams that pass between said media source device and said media consumer device.
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Abstract
A system and method for establishing and maintaining synchronization of isochronous audio and video information streams in wireless multimedia applications. The system includes a media source device capable of sending multimedia content a media consumer device capable of receiving said multimedia content, control signals that are exchanged between said media source device and said media consumer device, and an algorithm that uses the control signals to synchronize isochronous video and audio streams that pass between said media source device and said media consumer device. Some embodiments of the present invention include an algorithm to enable a device to have both the media sourcing and media consuming functions. The system and method includes algorithms that use the control signals to establish and maintain synchronization between the isochronous audio, data, and video streams of multimedia content, and, optionally, allows a device to both transmit and receive said multimedia content.
125 Citations
20 Claims
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1. A system for establishing and maintaining synchronization of isochronous audio, video, and data information streams in wireless multimedia applications, the system comprising:
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a media source device capable of sending multimedia content; a media consumer device capable of receiving said multimedia content; control signals that are exchanged between said media source device and said media consumer device; and an algorithm that uses said control signals to synchronize isochronous video and audio streams that pass between said media source device and said media consumer device. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A media source device comprising:
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a media application; an application layer adapter operatively coupled to the media application; a medium access controller adapted to interface with the application layer adapter and a radio frequency transmitter-receiver; and a radio frequency transmitter-receiver operatively coupled to said media source device. - View Dependent Claims (8)
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9. A media consumer device comprising:
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a media application; an application layer adapter operatively coupled to the media application; a medium access controller adapted to interface with the application layer adapter and a radio frequency transmitter-receiver; and a radio frequency transmitter-receiver operatively coupled to said media consumer device. - View Dependent Claims (10)
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11. A method for establishing and maintaining synchronization of isochronous audio and video information streams, the method comprising the steps of:
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starting up and connecting a media source device to a media consumer device; delivering media information from said media source device to said media consumer device; starting audio-video synchronization between an audio media consumer device and a video media consumer device; and terminating audio-video synchronization between said audio media consumer device and said video media consumer device. - View Dependent Claims (12, 13, 14)
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15. A system for establishing and maintaining synchronization of isochronous audio, video, and data information streams in multimedia applications, the system comprising:
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a media source device capable of sending multimedia content; a media consumer device capable of receiving said multimedia content; a communications path between said media source device and said media consumer device; control signals that are exchanged between said media source device and said media consumer device; and an algorithm that uses said control signals to synchronize isochronous video and audio streams that pass between said media source device and said media consumer device. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification