Coding and decoding technique which use low density parity check numerals

Japanese Patent JP5913560

B2

Some embodiments include apparatus and methods for encoding message information. Such apparatus and methods can include using a parity check matrix of a low-density parity check (LDPC) code to generate a first matrix having an upper triangular sub-matrix. Parity information to encode the message information can be generated based on the first matrix if a total number of rows of the upper triangular sub-matrix is equal to the rank of the parity check matrix. If the total number of rows of the upper triangular sub-matrix is less than the rank of the parity check matrix, then a triangularization operation can be performed on a second sub-matrix of the first matrix to generate a second matrix. Parity information to encode the message information can be generated based on the second matrix. Other embodiments including additional apparatus and methods are described.

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Varanasi, Chandrasie.
Don kui chan

JP2014503914A

April 27, 2016

April 03, 2012

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APPLIED MATERIALS,INCORPORATED

H03M13/19

US20070033485
WO2008112625A1

Tom Richardson et al.,Modern Coding Theory,Cambridge University Press,2008年,p.437-448,457
Thomas J. Richardson et al.,Efficient encoding of low-density parity-check codes,Information Theory, IEEE Transactions on ,2001年 2月,Vol.47, No.2,pp.638-656
楫 勇一,行列の三角分解を利用したLDPC符号化アルゴリズム,電子情報通信学会技術研究報告,2004年 5月12日,Vol.104, No.52,pp.7-12,IT2004-2

Nomura Yasuhisa
Yoshiyuki Osuga

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