发明名称 |
Information recording and reproducing apparatus |
摘要 |
Errors in a first data signal of a first error correction code system in a reproduced signal are corrected to get first correction-resultant data. Errors in a second data signal of a second error correction code system in the reproduced signal are corrected to get second correction-resultant data. All address information pieces in the second correction-resultant data for every error correction block are subjected to error checks. When at least one of all the address information pieces is correct, a descramble initial value is set in response to the correct address information piece. When all the address information pieces are erroneous, a correct address information piece is estimated from an address information piece associated with a previous error correction block and the descramble initial value is set in response to the estimated correct address information piece. The first correction-resultant data are descrambled in response to the descramble initial value.
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申请公布号 |
US7055082(B2) |
申请公布日期 |
2006.05.30 |
申请号 |
US20030683362 |
申请日期 |
2003.10.14 |
申请人 |
VICTOR COMPANY OF JAPAN, LTD. |
发明人 |
MORI TAKARO;IWATA KAZUMI |
分类号 |
G11C29/00;G11B20/00;G11B20/12;G11B20/18;G11B27/10;G11B27/30;H03M13/17;H03M13/29 |
主分类号 |
G11C29/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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