Coded data generation or conversion – Digital code to digital code converters – To or from variable length codes
Patent
1995-06-07
1999-10-05
Williams, Howard L.
Coded data generation or conversion
Digital code to digital code converters
To or from variable length codes
H03M 740
Patent
active
059631546
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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Dewar Kevin D.
Sotheran Martin W.
Wise Adrian P.
Bickel Arthur S.
Braun Robert T.
Discovision Associates
Williams Howard L.
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