Optical disk drive responsive to internal temperature change

Details Optical disk drive responsive to internal temperature change Optical disk drive responsive to internal temperature change

2007-10-09

2007-10-09

Psitos, A M (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S053180

Reexamination Certificate

active

09964874

ABSTRACT:
There is provided an optical disk drive capable of appropriately effecting recording and reproducing operations without being affected by offset values and a laser output value, which are set at startup of the disk drive, even when changes have arisen in the internal temperature of the disk drive because of changes in ambient temperature. In an optical disk drive, a temperature sensor provided on a pickup measures a temperature. When changes in temperature are greater than a predetermined level, a focus offset value, a tracking offset value, and a value of laser output from the pickup are reset.

REFERENCES:
patent: 4507767 (1985-03-01), Takasugi
patent: 5276697 (1994-01-01), Davis
patent: 5532991 (1996-07-01), Sasaki
patent: 5566077 (1996-10-01), Kulakowski et al.
patent: 5699333 (1997-12-01), Tsutsui
patent: 5852596 (1998-12-01), Kurita et al.
patent: 6064534 (2000-05-01), Simozato
patent: 6115338 (2000-09-01), Masaki et al.
patent: 6169930 (2001-01-01), Blachek et al.
patent: 6259466 (2001-07-01), Oomura et al.
patent: 6494370 (2002-12-01), Sanchez
patent: 6567350 (2003-05-01), Takagi et al.
patent: 02-031341 (1990-02-01), None
patent: 03-066031 (1991-03-01), None
patent: 04-283435 (1992-10-01), None
patent: 08-306052 (1996-11-01), None
patent: 09-102147 (1997-04-01), None
patent: 10-283645 (1998-10-01), None
patent: 11-134663 (1999-05-01), None
patent: 2000-2361888 (2000-08-01), None
MAT (machine assisted translation) of JP 2000-236188.
MAT (machine assisted translation) of JP 10-283645.
MAT (Machine assited translation) of JP 08-306052.

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