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:
JP2008118796A
Publication Date:
November 19, 2009
Filing Date:
April 30, 2008
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
G11B20/18; H03M13/19
Attorney, Agent or Firm:
Saichi Suyama
Yukio Kawahara
Satoshi Yamashita
Hideaki Suyama
Yukio Kawahara
Satoshi Yamashita
Hideaki Suyama