发明名称 |
Optical disc and apparatus for scanning the optical disc |
摘要 |
An optical disc is described for recording data, which disc has a recording area for recording data encoded in optical marks at a recording density. The recording area has circular or spiral tracks provided with a servopattern comprising headers alternating with track portions. The headers contain position information encoded in preformed marks. The track portions comprise periodic characteristics, e.g. a wobble, to synchronise the data writing and reading operations. For reliably detecting the headers the phase of the periodic characteristics comprises a phase jump at a predetermined distance before each header.
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申请公布号 |
US6850477(B2) |
申请公布日期 |
2005.02.01 |
申请号 |
US20030395957 |
申请日期 |
2003.03.24 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
VAN DEB ENDEN GIJSBERT J. |
分类号 |
G11B7/24;G11B7/0045;G11B7/005;G11B7/007;G11B11/105;(IPC1-7):G11B7/00 |
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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