发明名称 |
RECORD CARRIER AND APPARATUS FOR SCANNING THE RECORD CARRIER |
摘要 |
A record carrier (1) is described which has a servo track (4) indicating an information track (9) intended for recording information blocks. The servo track (4) has a periodic variation of a physical parameter at a predetermined frequency, usually called wobble. the servo track has modulated parts for encoding position information according to a predetermined type of modulation. The record carrier comprises a management area in which the servo track comprises permanent data. The permanent data is encoded using a different type of modulation, but using the variations of the same physical parameter. Direct digital modulation (41) is proposed for the different type of modulation. Further a device for reading and/or writing the record carrier is described. |
申请公布号 |
YU47303(A) |
申请公布日期 |
2005.06.10 |
申请号 |
YU2003P000473 |
申请日期 |
2002.09.24 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
SCHEP, CORNELIS |
分类号 |
G11B7/00;G11B7/007;G11B20/00;G11B27/19;G11B27/24 |
主分类号 |
G11B7/00 |
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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