Optical device including a calibrating unit for calibrating...

Details Optical device including a calibrating unit for calibrating... Optical device including a calibrating unit for calibrating...

2005-03-08

2005-03-08

Patel, Gautam R. (Department: 2655)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044160, C369S044350

Reexamination Certificate

active

06865143

ABSTRACT:
An optically recorded information recording and/or reading apparatus which eliminates the influence of stray light occurring within an optical system. In a state or a focus state which is forcedly set to position a reading point outside the outermost periphery of a disk surface, and the signal level is adjusted in a signal combiner circuit such that a light receiving level at that time matches a desired level.

REFERENCES:
patent: 4700056 (1987-10-01), Silvy et al.
patent: 5026981 (1991-06-01), Yamane et al.
patent: 5233444 (1993-08-01), Musha et al.
patent: 5721723 (1998-02-01), Uchimaru et al.
patent: 5903529 (1999-05-01), Nishi et al.
patent: 6101156 (2000-08-01), Tanaka et al.
patent: 6621771 (2003-09-01), Furuta et al.
patent: 0 3732 974 (1990-06-01), None
patent: 0 478 367 (1992-04-01), None
patent: 2-156424 (1990-06-01), None
patent: 10-105997 (1998-04-01), None
patent: 10-134376 (1998-05-01), None
European Search Report.

Affiliated with

Also associated with

Rating

Optical device including a calibrating unit for calibrating... 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 device including a calibrating unit for calibrating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical device including a calibrating unit for calibrating... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3403026