Moving picture high-speed coder and moving picture...

Details Moving picture high-speed coder and moving picture... Moving picture high-speed coder and moving picture...

2005-05-24

2005-05-24

Kelley, Chris (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240160

Reexamination Certificate

active

06898242

ABSTRACT:
When all frames, which are used for reference, are stored, vector retrieval means13find correlation with a reference frame. Compression type determination means14compare a predictive error of the found vector position and an average deviation within the frame, and select the compression type with high compression efficiency. Compression mode determination means15select anyone of the compression process at the time of the high-speed mode and the compression process at the time of the normal mode based on the compression type. In the compression process at the time of the high-speed mode, for the macro block the difference between it and the predictive block is not taken in motion predictive means16,it is converted into a frequency component in frequency conversion means17,is quantized in quantization means18,and is coded by the compression in variable-length coding means23to output the compression code from output means24.

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patent: 6408029 (2002-06-01), McVeigh et al.
patent: 6625214 (2003-09-01), Umehara et al.
patent: 3-220887 (1991-09-01), None
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patent: 10-155149 (1998-06-01), None

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