发明名称 |
OPTICAL INFORMATION RECORDING DEVICE, OPTICAL INFORMATION RECORDING METHOD, OPTICAL INFORMATION REPRODUCTION DEVICE, OPTICAL INFORMATION REPRODUCTION METHOD, AND OPTICAL INFORMATION RECORDING MEDIUM |
摘要 |
<p>The present invention can record sub-data. An optical disk drive (20) controls a laser diode (51), which serves as a light source, according to recording main-data information (Da) based on main data, and thus forms a record mark (RM) along a virtual irradiation line (TL) in an optical disk (100). The optical disk drive (20) shifts a target depth in a focusing direction according to recording sub-data information (Db) based on sub-data, and thus forms the record mark (RM) with the center of the record mark deviated in the focusing direction from the irradiation line (TL).</p> |
申请公布号 |
EP2189979(A4) |
申请公布日期 |
2011.11.23 |
申请号 |
EP20090735642 |
申请日期 |
2009.04.22 |
申请人 |
SONY CORPORATION |
发明人 |
UEDA, DAISUKE |
分类号 |
G11B7/0045;G11B7/007;G11B7/09;G11B7/135;G11B7/24 |
主分类号 |
G11B7/0045 |
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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