LDPC decoding apparatus and method

Details LDPC decoding apparatus and method LDPC decoding apparatus and method

2006-10-10

2006-10-10

Chase, Shelly (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Error/fault detection technique

Reexamination Certificate

active

07120857

ABSTRACT:
An LDPC decoding method and apparatus of LDPC decoding a codeword formed by c code bits transmitted through a channel include receiving the codeword and a p×c parity check matrix formed of 0 and 1 values, comparing the codeword with each of p rows of the parity check matrix, the rows formed with c elements, generating an R matrix by obtaining a first minimum value that is a minimum value among elements that are not 0 in each row, a second minimum value that is a second smallest value in the same row, and a location of the first minimum value, and outputting a decoded codeword formed by c code bits by determining one code bit by adding elements of each column of the R matrix.

REFERENCES:
patent: 6950461 (2005-09-01), Goldstein et al.
patent: 7000177 (2006-02-01), Wu et al.

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