Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2006-12-12
2006-12-12
An, Shawn S. (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240120, C375S240250, C375S240030, C375S240210, C375S240260, C382S233000, C382S238000, C382S235000, C382S236000, C382S251000, C348S034000
Reexamination Certificate
active
07149249
ABSTRACT:
In one aspect of a preferred embodiment, the present invention comprises a system for video compression comprising a video preprocessor; a predictor configured to receive video data from the preprocessor; and an encoder configured to communicate with the predictor. Preferably, the preprocessor comprises a colorspace converter, a frame activity detector, and a subsampler, the predictor comprises a frame differencer and a reference frame handler, and the encoder comprises an error image encoder and an image adder. In another aspect, the invention comprises a system for video decompression comprising a predictor and a decoder configured to communicate with the predictor. Preferably, the predictor comprises a reference frame handler and wherein said decoder comprises an error image decoder and a colorspace converter.
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Jawerth Bjorn
Råde Johan
Storm Henrik
An Shawn S.
Summus, Inc.
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