Soft viterbi Reed-Solomon decoder

Details Soft viterbi Reed-Solomon decoder Soft viterbi Reed-Solomon decoder

2007-06-05

2007-06-05

Lamarre, Guy J. (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S756000, C714S794000, C714S795000, C714S796000, C725S044000, C375S341000, C375S262000

Reexamination Certificate

active

10746918

ABSTRACT:
A Viterbi decoder is used to provide erasure information to a symbol based decoder. In a preferred embodiment, a Viterbi decoder is used to provide either minimum distance path metric information or path probability information, which is summed over a symbol window to derive erasure information for the symbol based decoder.

REFERENCES:
patent: 6347389 (2002-02-01), Boyer
patent: 6885711 (2005-04-01), Shiu et al.
patent: 2002/0154620 (2002-10-01), Azenkot et al.
patent: 2003/0192001 (2003-10-01), Maiuzzo et al.
Hagenauer et al., “A Viterbi Algorithm with Soft-Decision Outputs and its Applications”, 1989 IEEE, pp. 1680-1686.
Sawaguchi et al, “Soft-Output Decoding for Concatenated Error Correction In High-Order PRML Channels”, 1999 IEEE, pp. 1632-1637.
Papke et al., “Improved Decoding with the SOVA in a Parallel Concatenated (Turbo-code) Schem”, 1996 IEEE, pp. 102-106.
Yeo et al., “Implementation of High Throughput Soft Output Viterbi Decoders”, University of California, Berkeley, CA, pp. 1-6.

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