发明名称 |
Optical disk recording and/or playback apparatus, optical disk recording and/or playback method and tracking control method |
摘要 |
Disclosed is an apparatus for recording and playback data into and from an optical disc having: first tracks including a wobbled track and a non-wobbled track each implemented by either a land or a groove; and second tracks each sandwiched by the first tracks and used for recording information wherein if the first track is implemented by a groove, the second track is implemented by a land and if the first track is implemented by a land, the second track is implemented by a groove. The apparatus includes a unit for radiating a beam to a particular track on the disc; a unit for detecting a beam reflected by the particular track on the disc; and a unit for controlling the radiation unit so as to have the radiation unit trace a wobbled track adjacent to the particular track in accordance with the reflected beam.The apparatus is capable of generating a tracking-error signal by using only 1 beam.
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申请公布号 |
US6577566(B1) |
申请公布日期 |
2003.06.10 |
申请号 |
US20000556724 |
申请日期 |
2000.04.21 |
申请人 |
SONY CORPORATION |
发明人 |
TOMITA NOBUYOSHI |
分类号 |
G11B7/24;G11B7/007;G11B7/085;G11B7/09;G11B7/095;G11B11/105;G11B31/00;(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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