发明名称 |
Optical recording medium with aligned prepit portion |
摘要 |
An optical recording medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction. The prepit portion includes first and second prepit portions divided in a track direction with a prepit of the respective first and second prepit portions being arranged on a boundary of the respective tracks. The first prepit portion has an address information prepit and a synchronous information prepit and the second prepit has a synchronous information prepit. The prepit of the first prepit portion and the prepit of the second prepit portion are arranged at every two-track pitch in the radial direction and the prepit of the first prepit portion and the prepit of the second prepit portion are arranged with one track displaced in the radial direction. A trailing edge of an end prepit of the first prepit portion is aligned in the radial direction.
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申请公布号 |
US6529470(B2) |
申请公布日期 |
2003.03.04 |
申请号 |
US20020067734 |
申请日期 |
2002.02.08 |
申请人 |
HITACHI, LTD.;HITACHI MAXELL, LTD. |
发明人 |
MIYAMOTO HARUKAZU;SUKEDA HIROFUMI;TERAO MOTOYASU;MINEMURA HIROYUKI;ANDOU TETSUO |
分类号 |
G11B5/09;G11B7/007;G11B7/013;G11B7/09;G11B7/24;G11B7/26;G11B11/105;G11B15/52;G11B27/19;G11B27/24;G11B27/30;(IPC1-7):G11B7/24 |
主分类号 |
G11B5/09 |
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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