System of and method for decoding trellis codes

Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction

Reexamination Certificate

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Reexamination Certificate

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06973615

ABSTRACT:
Systems and related methods are described for (1) determining one or more state probabilities for one or more states in a trellis representation; (2) determining an estimate of or extrinsic output for a bit using a trellis representation; (3) performing a MAX* 2−>1 operation; and (4) computing forward state probabilities in a forward mode of operation and computing backward state probabilities in a backward mode of operation. Combinations of the foregoing are also described.

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