发明名称 |
Optical recording medium and manufacturing method thereof |
摘要 |
<p>At least a portion of groove tracks in a information-data recording region of an optical recording medium comprises a plurality of groove portions (12) separated by groove-absent portions (13) in a rotational direction of the optical recording medium, each of the mark portions or each of the space portions includes one of the groove-absent portions. At least one of two groove tracks adjacent to prepit train (14), which is formed in land tracks, has a continuous groove portion (12A,12B) or a groove-absent portion extending at least from a leading end to a trailing end of at least one prepit included in the prepit train in a rotational direction of the optical recording medium. The frequency band for separation of the groove tracks includes at least a portion of a frequency band of a modulated recording signal for recording information data on the optical recording medium. <IMAGE></p> |
申请公布号 |
EP1065659(A2) |
申请公布日期 |
2001.01.03 |
申请号 |
EP20000113391 |
申请日期 |
2000.06.23 |
申请人 |
PIONEER CORPORATION |
发明人 |
MURAMATSU, EIJI;SUZUKI, TOSHIO;KATO, MASAHIRO;TANIGUCHI, SHOJI |
分类号 |
G11B7/26;G11B7/24;G11B7/0037;G11B7/007;G11B20/12;(IPC1-7):G11B7/007;G11B27/19;G11B27/24 |
主分类号 |
G11B7/26 |
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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