Video compression system

Details Video compression system Video compression system

2005-10-05

2010-11-16

Hung, Yubin (Department: 2624)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240260, C375S240280, C382S236000

Reexamination Certificate

active

07835439

ABSTRACT:
A system involves encoding key frames within a data stream as both key frames and delta frames. A data stream including all encoded key and delta frames is formed and upon receipt of a request signal, the formed data stream is transmitted with the first key frame occurring in the stream after receipt of the request signal and the subsequent delta frames. Key frames are inserted in the transmitted data stream if positioned within the stream immediately after receipt of a signal requesting the data stream.

REFERENCES:
patent: 5440346 (1995-08-01), Alattar et al.
patent: 5847763 (1998-12-01), Matsumura et al.
patent: 2002/0147980 (2002-10-01), Satada
patent: 05252511 (1993-09-01), None
patent: 05328324 (1993-12-01), None
patent: 10-304382 (1998-11-01), None
patent: WO 2004/049719 (2004-06-01), None
Chen et al. (“Downloading and stream conversion: supporting interactive playout of videos in a client station”, IEEE Proceedings of the International Conference on Multimedia Computing and Systems, May 15-18, 1995, pp. 73-80).
Inoue, “Patent Abstracts of Japan”, Appln. #: 09118683, Pub. #: 10304382, Pub. date: Nov. 13, 1998, cited in corresponding PCT application.

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