Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate
2003-05-22
2008-01-01
Young, Wayne (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
C369S044320
Reexamination Certificate
active
07315499
ABSTRACT:
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.
REFERENCES:
patent: 6041030 (2000-03-01), Ohmi
patent: 6137754 (2000-10-01), Furukawa et al.
patent: 6160772 (2000-12-01), Muramatsu
patent: 6459664 (2002-10-01), Yamada et al.
patent: 6526007 (2003-02-01), Fujita
patent: 6590844 (2003-07-01), Fujita et al.
patent: 6639891 (2003-10-01), Katagiri
patent: 6963520 (2005-11-01), Park et al.
patent: 2002/0021640 (2002-02-01), Fujita et al.
patent: 2003/0026193 (2003-02-01), Shiomi et al.
patent: 2003/0147314 (2003-08-01), Kondo et al.
patent: 2005/0195707 (2005-09-01), Park et al.
patent: 11-39683 (1999-02-01), None
patent: 2000-339727 (2000-12-01), None
patent: 2001-176103 (2001-06-01), None
Katagiri Susumu
Kimura Masafumi
Yamashiro Toshihiro
Dickstein & Shapiro LLP
Pham Van T.
Ricoh & Company, Ltd.
Young Wayne
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