发明名称 |
INFORMATION RECORDING MEDIUM |
摘要 |
<p>An information recording medium has a plurality of recording layers, one (L0 layer) of which has an identifier recording area (NBCA) containing an identifier for identifying the information recording medium. In the identification information recording area, a groove track (GT) is divided in the direction along the groove track by a spatial frequency not lower than a specified spatial frequency (2NA/?) at which reproduction becomes impossible according to the optical transmission characteristics (MTF) of a reproduction optical system.</p> |
申请公布号 |
WO2006004087(A1) |
申请公布日期 |
2006.01.12 |
申请号 |
WO2005JP12330 |
申请日期 |
2005.07.04 |
申请人 |
PIONEER CORPORATION;MURAMATSU, EIJI;SUZUKI, TOSHIO;KURODA, KAZUO |
发明人 |
MURAMATSU, EIJI;SUZUKI, TOSHIO;KURODA, KAZUO |
分类号 |
G11B7/24;G11B7/24038;(IPC1-7):G11B7/24 |
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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