发明授权
- 专利标题: Optical record carrier
- 专利标题(中): 光记录载体
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申请号: US09571458申请日: 2000-05-16
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公开(公告)号: US06853615B1公开(公告)日: 2005-02-08
- 发明人: Johannes Hendrikus Maria Spruit , Johannes Josephus Leonardus Maria Van Vlerken
- 申请人: Johannes Hendrikus Maria Spruit , Johannes Josephus Leonardus Maria Van Vlerken
- 申请人地址: NL Eindhoven
- 专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人地址: NL Eindhoven
- 代理商 Michael E. Belk
- 优先权: EP99202098 19990629
- 主分类号: G11B7/24
- IPC分类号: G11B7/24 ; G11B7/005 ; G11B7/007 ; G11B20/14
摘要:
An optical record carrier (1) is provided with tracks having a groove (4) wobbled in a transverse direction and predetermined positions (18) along the track. The wobble comprises a substantially monotonous undulation (15). Local excursions (16) of the groove superposed on the undulation at the predetermined positions represent position information, such as addresses. The spatial frequency of the undulation is lower than that of the excursions.