Video decoder

Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium

Reexamination Certificate

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Details

C386S349000, C386S349000

Reexamination Certificate

active

06871001

ABSTRACT:
An MPEG video decoder1decodes a MPEG video stream using a discrete cosine transform together with a motion compensated prediction performing backward prediction and forward prediction. A frame buffer104ais provided with a storage area for forward-reference luminance data used for the backward prediction and a storage area for rearward-reference color-difference data used for the forward prediction. A frame buffer104bis provided with a storage area for forward-reference color-difference data used for the backward prediction and a storage area for rearward-reference luminance data used for the forward prediction. Memory access for each of the frame buffers104a, 104bwith an input/output data bus width of 16 bit is performed in a parallel processing.

REFERENCES:
patent: 5412428 (1995-05-01), Tahara
patent: 6571050 (2003-05-01), Park
patent: 6735340 (2004-05-01), Ohno
patent: 0 602 642 (1994-06-01), None
patent: 6-189298 (1994-07-01), None
patent: 7-298264 (1995-11-01), None
patent: 8-186826 (1996-07-01), None
patent: 11-55668 (1999-02-01), None
ISO/IEC 11172-1; First edition Jan. 8, 1993; Information technology -coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s--; Part 1: Systems.
ISO/IEC 11172-2; First edition Jan. 8, 1993; Information technology -coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s-; Part 2: Video.
ISO/IEC 11172-3; First edition Jan. 8, 1993; Information technology -coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s-; Part 3: Audio.

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