发明名称 |
OPTICAL RECORDING MEDIUM DATA RECORDING METHOD, OPTICAL RECORDING MEDIUM DATA RECORDER, AND OPTICAL RECORDING MEDIUM |
摘要 |
<p>It is an object of the present invention to provide a method for recording data in an optical recording medium which can form a recording mark having desired length and width in a write-once type optical recording medium. <??>The method for recording data in an optical recording medium according to the present invention is constituted so as to project a laser beam whose power is modulated by a pulse train pattern onto an optical recording medium including a substrate, a first recording layer, a second recording layer and a light transmission layer 16 wherein a recording pulse of the pulse train pattern is divided into (n - 1) divided pulses and the power of the laser beam is set to a recording power Pw at the peak of each of the divided pulses, set to a second bottom power Pb2 at a portion immediately after a last divided pulse and set to a first bottom power Pb1 at other intervals where Pb1 is higher than Pb2. <IMAGE></p> |
申请公布号 |
EP1511014(A1) |
申请公布日期 |
2005.03.02 |
申请号 |
EP20030730509 |
申请日期 |
2003.05.19 |
申请人 |
TDK CORPORATION |
发明人 |
KATO, TATSUYA;HIRATA, HIDEKI |
分类号 |
G11B7/00;G11B7/0045;G11B7/24;G11B7/24038;G11B7/243;G11B7/2433;(IPC1-7):G11B7/004;G11B7/125 |
主分类号 |
G11B7/00 |
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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