发明名称 |
MASTERING DEVICE, DISC MANUFACTURING METHOD, DISC-SHAPED RECORDING MEDIUM, DISC REPRODUCTION DEVICE, AND DISC REPRODUCTION METHOD |
摘要 |
Second digital information serving as copyright protection information can be stably and reliably read without any effect of a defect or pit missing on a disk-shaped recording medium. Second digital information is recorded onto a disk-shaped recording medium by wobbling a pit sequence recorded as a first signal. The second digital information is recorded so that a plurality of bits constituting the second digital information are allocated in a unit period of an identical sync signal contained in the first signal. During playback, the plurality of bits constituting the recorded second digital information are read a plurality of times every unit period of the sync signal, and information of the read bits is then integrated. Thus, information from a large number of wobbled pits across unit periods of a plurality of sync signals can be integrated to determine the bit values.
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申请公布号 |
US2007297318(A1) |
申请公布日期 |
2007.12.27 |
申请号 |
US20070764418 |
申请日期 |
2007.06.18 |
申请人 |
SONY CORPORATION |
发明人 |
KOBAYASHI SEIJI;PAN JIN |
分类号 |
G11B7/24;G11B20/10;G11B7/0045;G11B7/005;G11B7/007;G11B7/013;G11B7/26;G11B20/00;G11B20/12;G11B23/28 |
主分类号 |
G11B7/24 |
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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