Compressed motion video code processor

Details Compressed motion video code processor Compressed motion video code processor

1995-09-27

1998-01-06

Britton, Howard W.

Television

Bandwidth reduction system

Data rate reduction

348402, 348415, 348416, H04N 736, H04N 750

Patent

active

057060533

ABSTRACT:
A compressed motion video code processing circuit and a compressed motion video code processing method are disclaused. The processor decodes a bitstream into a moving picture data sequence and outputts each picture to an outside circuit (e.g., a monitor circuit) according to the original video sequence. That is, the bitstream includes I-pictures, P-pictures and B-pictures, and each pictures are arranged according to a different rule from the original video sequence. When an error is caused in the bitstream, the data of the error portion is replaced by decoded data of corresponding portion in a correction picture which has been decoded and stored. The correction picture is selected, for example, as a picture which has short inter-frame distance from a current picture under decoding.

REFERENCES:
patent: 5231484 (1993-07-01), Gonzales et al.
patent: 5293229 (1994-03-01), Iu
patent: 5325125 (1994-06-01), Naimpally
patent: 5353059 (1994-10-01), Lawlor
patent: 5386234 (1995-01-01), Veltman
patent: 5400076 (1995-03-01), Iwamura
patent: 5436664 (1995-07-01), Henry
"Performance of a Software MPEG Video Decoder", K. Patel et al., Computer Science Division-EECS, Univ. of Calif., Berkeley, CA.

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