发明授权
- 专利标题： Information recording medium and information recording/reproducing apparatus
- 专利标题（中）： 信息记录介质和信息记录/再现装置
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申请号： US10925143申请日： 2004-08-25
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公开(公告)号： US07447142B2公开(公告)日： 2008-11-04
- 发明人: Kazuo Kuroda , Akira Imamura
- 申请人： Kazuo Kuroda , Akira Imamura
- 申请人地址： JP Tokyo
- 专利权人： Pioneer Corporation
- 当前专利权人： Pioneer Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Drinker Biddle & Reath LLP
- 优先权： JP2003-301123 20030826
- 主分类号： G11B7/00
- IPC分类号： G11B7/00
摘要：
A groove is formed on a master disc. The groove is formed substantially along a spiral standard locus, but a groove position is displaced in a direction crossing the standard locus according to record data. The wobble is determined from a wobble signal. A wobble is formed such that an average value of displacement of the groove position with the standard locus as a reference is zero for each predetermined data unit.
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