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Patent Searching and Data


Title:
DATA DECODING APPARATUS, DATA REPRODUCING APPARATUS, AND DATA DECODING METHOD
Document Type and Number:
Japanese Patent JP2009271956
Kind Code:
A
Abstract:

To provide a data decoding apparatus, a data reproducing apparatus, and a data decoding method to correct data by using both the LDPC decoding and decoding using the parity restriction.

The data decoding device includes: a check matrix including a submatrix which indicates a parity restriction and used for LDPC decoding; a first decoding module configured to decode data by using the submatrix so that the parity restriction is satisfied; and a second decoding module configured to LDPC-decode the decoded data by using the check matrix.


Inventors:
YOSHIDA KENJI
Application Number:
JP2008000118796
Publication Date:
November 19, 2009
Filing Date:
April 30, 2008
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
G11B20/18; H03M13/19
Attorney, Agent or Firm:
須山 佐一
川原 行雄
山下 聡
須山 英明