Method and apparatus for low density parity check encoding...

Details Method and apparatus for low density parity check encoding... Method and apparatus for low density parity check encoding...

2005-05-17

2005-05-17

Chase, Shelly A (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Error/fault detection technique

Reexamination Certificate

active

06895547

ABSTRACT:
A method for low-density parity-check (LDPC) encoding of data comprises defining a first M×N parity check matrix; generating, based on the first parity check matrix, a second parity check matrix having an M×M triangular sub-matrix; and, mapping the data into an LDPC code word based on the second parity check matrix. The method is particularly useful for data communications applications, but may also be employed in other applications such as, for example, data storage.

REFERENCES:
Bond et al., Low density parity check codes based on sparse matrices with no small cycles, 1997, Proceedings of the 6th IMA international Conference, p. 47-58.*
Bond et al., Constructing low density parity check codes, 2000, IEEE, p. 260-262.*
Zhang et al., A class of efficient-encoding generalized low density parity check codes, 2001, IEEE, p. 24772480.*
Richardson et al., Efficient encoding of low density parity check codes, 2001, IEEE, p. 638-656.

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