Adaptive Video Telephone System
First Claim
1. A videotelephone system, comprising:
- first and second videophones each having a camera connected to an encoder and a transmitter, and having a decoder connected to a display;
a network interconnecting the encoders and decoders of said videophones for video communication; and
wherein said encoders are adaptively responsive to network-caused errors in said communication to provide real-time error recovery.
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Accused Products
Abstract
A videophone system providing high resolution video transmission between videophones utilizes compressed video signals and audio signals which may be transmitted through any communications network, with the system providing real time adaptive error recovery and synchronization between the audio and video signals to produce high quality video images and sound. The system is highly resilient, adapting in real time to changing conditions in a network or to network errors due to data corruption or loss that can be produced, for example, by noise or line losses, thereby substantially eliminating fitter, signal packet loss or delay, or other errors which produce signal degradation.
30 Citations
23 Claims
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1. A videotelephone system, comprising:
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first and second videophones each having a camera connected to an encoder and a transmitter, and having a decoder connected to a display; a network interconnecting the encoders and decoders of said videophones for video communication; and wherein said encoders are adaptively responsive to network-caused errors in said communication to provide real-time error recovery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of high resolution video communication, comprising:
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transmitting compressed video data signals representing an image through a communications network; detecting network-caused errors in said video data signals; adaptively changing said video data signals in real time to provide error recovery; and storing or displaying said image. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification