Patent
1995-06-07
1999-03-02
Lee, Thomas C.
39580018, 395377, 395384, 395561, G06F 1300
Patent
active
058782737
ABSTRACT:
An MPEG video decompression method and apparatus utilizing a plurality of stages interconnected by a two-wire interface arranged as a pipeline processing machine. Control tokens and DATA Tokens pass over the single two-wire interface for carrying both control and data in token format. A token decode circuit is positioned in certain of the stages for recognizing certain of the tokens as control tokens pertinent to that stage and for passing unrecognized control tokens along the pipeline. Reconfiguration processing circuits are positioned in selected stages and are responsive to a recognized control token for reconfiguring such stage to handle an identified DATA Token. A wide variety of unique supporting subsystem circuitry and processing techniques are disclosed for implementing the system, including memory addressing, transforming data using a common processing block, time synchronization, asynchronous swing buffering, storing of video information, a parallel Huffman decoder, and the like.
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Robbins William P.
Sotheran Martin William
Wise Adrian P.
Bickel Arthur S.
Braun Robert T.
Chen Anderson J.
Clark Ronald J.
Discovision Associates
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