Method and apparatus for encoding and decoding data

Details Method and apparatus for encoding and decoding data Method and apparatus for encoding and decoding data

2008-03-11

2008-03-11

Lamarre, Guy J. (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Error/fault detection technique

C714S752000, C714S758000

Reexamination Certificate

active

07343548

ABSTRACT:
A structured parity-check matrix H is proposed, wherein H is an expansion of a base matrix Hb. Base matrix Hbcomprises a section Hb1and a section Hb2. Section Hb2comprises column hbhaving weight wh>=3 and H′b2having a dual-diagonal structure with matrix elements at row i, column j equal to 1 for i=j, 1 for i=j+1, and 0 elsewhere. The 1's of hband Hb1are arranged such that one or more groups of the rows of Hbcan be formed so that the rows of Hbwithin each group do not intersect. Further more, the rows of base matrix Hbcan be permuted such that every two consecutive rows do not intersect.

REFERENCES:
patent: 6718508 (2004-04-01), Lodge et al.
patent: 7188297 (2007-03-01), Blankenship et al.
patent: 7260763 (2007-08-01), Sukhobok et al.
patent: 2004/102810 (2004-11-01), None

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