Fast min*- or max*-circuit in LDPC (low density parity...

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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07383485

ABSTRACT:
Fast min*− (min-star-minus) or max*− (max-star-minus) circuit in LDPC (Low Density Parity Check) decoder. A novel and efficient approach by which certain of the calculations required to perform check node processing within various types of decoders is presented. The functionality and architectures presented herein are applicable to LDPC decoders and may also be employed within other types of decoders that are operable to decode other types of coded signals as well. The parallel and sometimes simultaneous calculation and determination of certain parts of the overall resultant of the max*− and/or min*− processing allows for very fast operation when compared to prior art approaches.

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