发明授权
US07099263B2 Optical reproducing method for optical medium with aligned prepit portion
有权
具有对准预凹坑部分的光学介质的光学再现方法
- 专利标题: Optical reproducing method for optical medium with aligned prepit portion
- 专利标题(中): 具有对准预凹坑部分的光学介质的光学再现方法
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申请号: US11178404申请日: 2005-07-12
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公开(公告)号: US07099263B2公开(公告)日: 2006-08-29
- 发明人: Harukazu Miyamoto , Hirofumi Sukeda , Motoyasu Terao , Hiroyuki Minemura , Tetsuo Andou
- 申请人: Harukazu Miyamoto , Hirofumi Sukeda , Motoyasu Terao , Hiroyuki Minemura , Tetsuo Andou
- 优先权: JP07-024949 19950214; JP07-270872 19951019; JP07-300961 19951120
- 主分类号: G11B7/24
- IPC分类号: G11B7/24
摘要:
A recording method for an optical recording medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction, wherein the prepit portion includes first and second prepit portions divided in a track direction. A prepit of the respective first and second prepit portions is arranged on a boundary of the respective tracks, the first prepit portion having an address information prepit and a synchronous information prepit and the second prepit having a synchronous information prepit. The prepits of the first and second portions are arranged at every two-track pitch in the radial direction and are arranged with one track displaced in the radial direction with a gap being provided between the first and second prepit portions. The method includes providing the optical medium, and recording information on the optical medium by irradiating an optical spot thereon.
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