Television – Bandwidth reduction system – Data rate reduction
Patent
1993-01-28
1995-02-28
Britton, Howard W.
Television
Bandwidth reduction system
Data rate reduction
348407, H04N 7133, H04N 7137
Patent
active
053941896
ABSTRACT:
A motion picture coder for coding plural macro blocks of motion picture data based on a standardizing system is disclosed. The coder comprises first and second pipe-lined processors executing different coding processes respectively, both of which are separated from one another so as to accomplish a parallel operation thereof. The first processor executes a motion vector detection for a second macro block, an inter-frame addition for a first macro block and an inter-frame difference for the first macro block. The second processor executes a discrete cosine transform for the first macro block, a quantization for the first macro block, an inverse quantization for the first macro block, an inverse discrete cosine transform for the first macro block and a loop filtering for the second macro block. The motion vector detection and the discrete cosine transform are concurrently processed and the inter-frame addition and the loop filtering are concurrently processed, thereby the processing times for each macro block are shortened and thus a high speed processing is realized.
REFERENCES:
patent: 5054103 (1991-10-01), Yasuda
patent: 5057918 (1991-10-01), Denoyelle
Enomoto Tadayoshi
Motomura Masato
Britton Howard W.
NEC Corporation
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