发明名称 |
Data synchronization detection device, information recording device, information reproduction device, information recording format, signal processing device, information recording and reproducing device, and information recording medium |
摘要 |
Data synchronization detection is provided between data identification and code demodulation in a data reproduction system, which performs data synchronization detection using code-modulated data. A specified bit pattern generated in a data codeword is calculated in each phase (bit), using a specified bit sequence pattern that is not generated in a specified phase of the data codeword. For example, a specified bit sequence pattern is generated only in a specified phase of the codeword. The positions of the data codeword partitions are thereby identified. Scrambling is then applied to the write data as required in order to ensure accurate synchronization detection.
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申请公布号 |
US7039141(B2) |
申请公布日期 |
2006.05.02 |
申请号 |
US20010930161 |
申请日期 |
2001.08.16 |
申请人 |
HITACHI, LTD. |
发明人 |
WATANABE YOSHIJU;ITO YASUYUKI |
分类号 |
G11B5/09;G11B20/14;G11B20/10;G11B20/12;G11B27/30;H04L1/00;H04L7/00;H04L7/02;H04L7/04;H04L7/08 |
主分类号 |
G11B5/09 |
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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