Viterbi traceback initial state index initialization for...

Details Viterbi traceback initial state index initialization for... Viterbi traceback initial state index initialization for...

2007-08-16

2009-11-10

Lamarre, Guy J (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S791000, C714S792000, C714S796000, C375S262000, C375S265000, C375S341000

Reexamination Certificate

active

07617440

ABSTRACT:
This invention provides the correct Viterbi decode traceback starting index is obtained for all constraint lengths and frame sizes. Reverse transpose operations that depend on the last active add-compare-select unit a cascade block of the state metric update process. This last active add-compare-select unit controls selection of T counter signals used in the decode.

REFERENCES:
patent: 6690750 (2004-02-01), Hocevar et al.
patent: 2006/0256897 (2006-11-01), Wolf

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