Advanced forward error correction

Details Advanced forward error correction Advanced forward error correction

2005-01-11

2005-01-11

Tu, Christine T. (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Data pulse evaluation/bit decision

C714S752000

Reexamination Certificate

active

06842873

ABSTRACT:
A computer program product, apparatus, and method for correcting errors introduced into a set of data bits during transmission of the set of data bits over a channel includes determining a confidence measure for each data bit based only on the values of one or more of the data bits, each confidence measure representing the probability that the value of the corresponding data bit is correct; and changing the value of a given data bit when the confidence measure for the given data bit indicates that the value of the given data bit is not correct, thereby producing a corrected data bit.

REFERENCES:
patent: 6735725 (2004-05-01), Wu et al.
patent: 20030051206 (2003-03-01), Kondo
patent: 20030101409 (2003-05-01), Levy et al.
Gallager, R. G., “Low-Density Parity-Check Codes”, IRE Transactions on Information Theory, p. 21, 1962.
Y. Kou, S. Lin, M. Fossorier, “Low Density Parity Check Codes Based on Finite Geometries: A Rediscovery and More”, IEEE Transactions on Information Theory, vol. 47, Issue 7, Nov. 2001, pp. 2711-2736.

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