发明名称 |
Optical recording carrier having groove wobble phase changes between subsequent predetermined positions |
摘要 |
An optical record carrier (1) is provided with tracks having a groove (4) wobbled in a radial direction and predetermined positions (18) along the track. Embossed pits (18) at the predetermined positions represent addressing information. The phase of the wobble near the predetermined positions depends on whether a pit is present (18) on a predetermined position or not (19). The wobble changes phase between each two subsequent predetermined positions of which one on the positions contains no pit and the other position contains a pit.
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申请公布号 |
US6714508(B1) |
申请公布日期 |
2004.03.30 |
申请号 |
US20000577546 |
申请日期 |
2000.05.24 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
SPRUIT JOHANNES HENDRIKUS MARIA;VAN VLERKEN JOHANNES JOSEPHUS LEONARDUS MARIA |
分类号 |
G11B7/24;G11B7/007;G11B7/30;(IPC1-7):G11B7/24 |
主分类号 |
G11B7/24 |
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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