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US 6,611,530 B1Granted
Video communication using multiple streams
AssigneeHewlett-Packard Development Company, L.P.
InventorJohn G. Apostolopoulos
Life of this patent
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Abstract
A video communication system that uses multiple streams to carry digital video. The use of multiple streams ensures that errors in one or more of the multiple streams do not prevent reconstruction of remaining ones of the multiple streams. This enables an error free display of the digital video at a reduced frame rate during the loss of a subset of the streams. In addition, the multiple streams provide past and future frames that may be used to recover lost frames and thereby recover the lost stream.
Claims17
A video communication system, comprising:
- sender having means for generating multiple encoded streams in response to a stream of video frames each encoded stream having a series of encoded frames that depend from a previous encoded frame in the corresponding encoded stream;
- receiver having means for reconstructing the stream of video frames in response to the multiple encoded streams such that errors in one or more of the multiple encoded streams do not prevent reconstruction of remaining ones of the multiple encoded streams.
A method for video communication, comprising the steps of:
- generating multiple encoded streams in response to a stream of video frames each encoded stream having a series of encoded frames that depend from a previous encoded frame in the corresponding encoded stream;
- reconstructing the stream of video frames in response to the multiple encoded streams such that errors in one or more of the multiple encoded streams do not prevent reconstruction of remaining ones of the multiple encoded streams.
Dependencies are inferred from the claim text.