Decoder and decoding method

Details Decoder and decoding method Decoder and decoding method

2006-05-30

2006-05-30

Torres, Joseph D. (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S780000

Reexamination Certificate

active

07055089

ABSTRACT:
A decoding system and method for providing relatively high likelihood of obtaining at least two paths of getting to each decoding state from at least three paths. The system and method also selects a maximum likelihood path from the two paths, where a log likelihood of getting to a state in the decoder is determined by a soft-input value encoded with a trellis so as to provide at least three paths for getting to the state.

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S. Benedetto, D. Divsalar, G. Montorsi, and F. Pollara, A Soft-Input Soft-Output Maximum A Posteriori (MAP) Module to Decod Parallel and Serial Concatenated Codes, TDA Progress Report 42-127, NASA Code 315-91-20-20-53.
Liew, T.H.; Yeap, B.L.; Woodard J.; Hanzo, L.; Modified MAP algorithm for extended turbo BCH codes and turbo equalizers; First International Conference on 3G Mobile Communication Technologies (IEE Conf. Publ. No. 471), Mar. 27-29, 2000; pp.: 185-189.
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