发明名称 |
Optical disk apparatus and method of adjusting the same |
摘要 |
<p>There is provided a control circuit (10, 11) for arithmetically processing at least one of focus-directional and tracking-directional position error signals, and adding the arithmetic operation result as an input amount to a coil for driving in the opposite direction. The control circuit (10, 11) produces such a control signal as to cancel the effect of an oscillation mode of an objective lens holder (16). An output determination circuit (20) temporarily restricts functions of the control circuit when the determination circuit has determined that a disturbance component is mixed in the position error signal. Thereby, even in the case of slight displacement, the objective lens (3) can be controlled independently in the focusing and tracking directions while avoiding interference movement in both directions. <IMAGE></p> |
申请公布号 |
EP1162608(A2) |
申请公布日期 |
2001.12.12 |
申请号 |
EP20010112935 |
申请日期 |
2001.06.06 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
YONEZAWA, MINORU;KUBOTA, HIROSHI;ARAKAWA, SHINICHIRO |
分类号 |
G11B7/007;G11B7/09;G11B7/095;(IPC1-7):G11B7/09 |
主分类号 |
G11B7/007 |
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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