H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/50 (2006.01) G06F 12/02 (2006.01) G06F 12/06 (2006.01) G06F 13/16 (2006.01) G06F 13/28 (2006.01) G06T 9/00 (2006.01) H04N 7/173 (2006.01) H04N 7/26 (2006.01) H04N 7/62 (2006.01) G06F 12/04 (2006.01)
Patent
CA 2154962
An MPEG video decompression method and apparatus utilizing a plurality of stages interconnected by a two-wire interface arranged as a pipeline process-ing 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 thesystem, including memory addressing, transforming data using a common processing block, time synchronization, asynchronous swing buffering, storing ofvideo information, a parallel Huffman decoder, and the like.
Barnes David Andrew
Barnes Mark
Birch Nicholas
Claydon Anthony Peter John
Dewar Kevin D.
Discovision Associates
Smart & Biggar
LandOfFree
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