Servo phase compensation selection system for an optical disc pl

Details Servo phase compensation selection system for an optical disc pl Servo phase compensation selection system for an optical disc pl

1992-06-11

1993-11-23

Psitos, Aristotelis

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4432, 369 4415, 369 54, G11B 700

Patent

active

052650804

ABSTRACT:
A servo circuit for controlling an actuator provided on an optical pickup of a disc reproducing apparatus, the optical pickup optically reading out an information signal recorded on a disc is comprised of a phase compensating unit including a first phase compensator circuit whose gain characteristic and phase characteristic are set to first characteristics and a second phase compensator circuit whose gain characteristic and phase characteristic are set to second characteristics, the first and second phase compensator circuits being selectively coupled, a detecting circuit for detecting an oscillation of the actuator, and a switching circuit for switching the first and second phase compensator circuits from one to the other on the basis of an output from the detecting circuit.

REFERENCES:
patent: 4623994 (1986-11-01), Nabeshima et al.
patent: 4722079 (1988-01-01), Matsumoto
patent: 5046820 (1991-09-01), Saekusa et al.
patent: 5105406 (1992-04-01), Imanaka
patent: 5117410 (1992-05-01), Akiyama

Affiliated with

Also associated with

Rating

Servo phase compensation selection system for an optical disc pl does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Servo phase compensation selection system for an optical disc pl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Servo phase compensation selection system for an optical disc pl will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1855281