Method and device for correcting optical path deviation of...

Details Method and device for correcting optical path deviation of... Method and device for correcting optical path deviation of...

2007-10-16

2007-10-16

Hindi, Nabil Z. (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044250, C369S044350

Reexamination Certificate

active

10912007

ABSTRACT:
A device for correcting optical path deviation of an optical pickup in an optical recording system includes a push-pull signal generator for generating a push-pull signal while the optical pickup is operated in a focusing and non-track-locking state, a low-pass filter module for generating a direct current (DC) level error signal from the push-pull signal, and a combiner for generating a calibrating servo signal based on the DC level error signal and a servo control signal from a servo controller of the optical recording system and for applying the calibrating servo signal to a servo mechanism of the optical recording system so as to adjust position of an objective lens of the optical pickup in order to maintain the DC level of the push-pull signal at an ideal level.

REFERENCES:
patent: 6690628 (2004-02-01), Yoshimi et al.

Affiliated with

Also associated with

Rating

Method and device for correcting optical path deviation of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for correcting optical path deviation of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for correcting optical path deviation of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3901885