发明名称 |
Optical disk apparatus, tilt compensation method, program, and information recording medium |
摘要 |
An optical disk apparatus includes a tilt detection unit detecting the tilt value of an optical disk medium with respect to an optical system. A tilt compensation unit compensates for the tilt of the optical disk medium by adjusting a relative angle between the optical system and the optical disk medium according to the tilt value detected by the tilt detection unit. A tilt detection error estimation unit estimates tilt detection error of the tilt detection unit with respect to a radial position of the optical disk medium at which information is recorded/reproduced by the optical systems by referring to tilt values that are previously detected at a plurality of radial positions of the optical disk medium by the tilt detection unit. The tilt compensation unit has a correction unit that corrects the tilt value according to the tilt detection error estimated by the tilt detection error estimation unit. The tilt compensation unit compensates for the tilt of the optical disk medium according to the tilt value corrected by the correction unit.
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申请公布号 |
US2003223337(A1) |
申请公布日期 |
2003.12.04 |
申请号 |
US20030442998 |
申请日期 |
2003.05.22 |
申请人 |
KIMURA MASAFUMI;KATAGIRI SUSUMU;YAMASHIRO TOSHIHIRO |
发明人 |
KIMURA MASAFUMI;KATAGIRI SUSUMU;YAMASHIRO TOSHIHIRO |
分类号 |
G11B7/095;(IPC1-7):G11B7/095 |
主分类号 |
G11B7/095 |
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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