发明名称 |
Optical disk apparatus, method for calculation of amount of lens shift, program and medium |
摘要 |
An optical disk apparatus has an optical head having a lens of converging light from a light source onto an optical disk and a photodetector for detecting the light thus converged and then reflected from the optical disk. A tracking error signal is generated in order to perform tracking control on the basis of the detected light. A disk tilt DT is detected to indicate the amount of tilt of the optical head relative to the optical disk. A calculation is performed to calculate a lens shift LS indicating the amount of shift of the lens relative to the optical head, according to a predetermined rule on the basis of the generated tracking error signal and the detected disk tilt DT.
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申请公布号 |
US7196991(B2) |
申请公布日期 |
2007.03.27 |
申请号 |
US20010994335 |
申请日期 |
2001.11.26 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NAGAOKA JUNJI;NISHIWAKI SEIJI;MOMOO KAZUO |
分类号 |
G11B7/00;G11B7/095;G11B7/09 |
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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