Optical disk apparatus

Details Optical disk apparatus Optical disk apparatus

2011-01-04

2011-01-04

Negrón, Daniell L (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044130, C369S044360, C369S047250, C369S047280, C369S053340

Reexamination Certificate

active

07864639

ABSTRACT:
An optical disk apparatus includes a signal detection unit which detects a signal corresponding to a wobbling guide groove formed on an optical disk, a timing signal generating unit which generates first and second timing signals in accordance with an amplitude level of the signal detected, a photodetector which detects reflective light from the optical disk, and a wobble signal generating unit which outputs as a wobble signal a signal which is amplified with a low gain amount by the first timing signal in a case where an arithmetic signal, which is generated for the wobble signal on the basis of a signal detected by the photodetector, is at a high amplification level, and outputs as the wobble signal a signal which is amplified with a high gain amount by the second timing signal in a case where the arithmetic signal is at a low amplification level.

REFERENCES:
patent: 6891782 (2005-05-01), Saito et al.
patent: 2001-134943 (2001-05-01), None
patent: 2002-279640 (2002-09-01), None
patent: 2003-173540 (2003-06-01), None
patent: 2003-217127 (2003-07-01), None
patent: 3458502 (2003-08-01), None
patent: 2004-227644 (2004-08-01), None
patent: WO 2004/100138 (2004-11-01), None

Affiliated with

Also associated with

Rating

Optical disk apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical disk apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical disk apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2703931