Optical disc apparatus, method of adjusting focus offset for...

Details Optical disc apparatus, method of adjusting focus offset for... Optical disc apparatus, method of adjusting focus offset for...

2011-08-16

2011-08-16

Giesy, Adam R (Department: 2627)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

C369S053280

Reexamination Certificate

active

08000194

ABSTRACT:
In an optical disc apparatus, whether an unrecorded recording layer without information recorded thereon is included in the multiple recording layers of the optical disc mounted inside the apparatus is judged. then when the unrecorded recording layer is judged to be present, a signal for focus offset adjustment is recorded in a non-user data recording area of the unrecorded recording layer, and reproduction of the recorded focus offset adjusting signal is followed by its quality evaluation, which is further followed by calculation and setup of an appropriate focus offset value based on evaluation results.

REFERENCES:
patent: 6392971 (2002-05-01), Takiguchi et al.
patent: 6407968 (2002-06-01), Nakata et al.
patent: 7344077 (2008-03-01), Sagara et al.
patent: 7577065 (2009-08-01), Kuroda et al.
patent: 2004/0076084 (2004-04-01), Yonezawa
patent: 2006/0072416 (2006-04-01), Chen et al.
patent: 08-235643 (1996-09-01), None
patent: 09-007193 (1997-01-01), None
patent: 11-003550 (1999-01-01), None
patent: 11-025467 (1999-01-01), None
patent: 2000-276743 (2000-10-01), None
patent: 2001-093162 (2001-04-01), None
patent: 2002-92880 (2002-03-01), None
patent: 2002-298356 (2002-10-01), None
patent: 2002-304730 (2002-10-01), None
patent: 2002-373430 (2002-12-01), None
patent: 2003-217140 (2003-07-01), None
patent: 2003-338057 (2003-11-01), None
patent: 2004-326987 (2004-11-01), None
patent: 2005-259257 (2005-09-01), None
patent: 2005-259259 (2005-09-01), None
patent: WO 2004086382 (2004-10-01), None
patent: WO2004/086382 (2005-12-01), None
Japan Patent Office office action for patent application JP2005-126478 (Jul. 13, 2010).

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