Magneto-optic recording/reproduction apparatus for minimizing va

Details Magneto-optic recording/reproduction apparatus for minimizing va Magneto-optic recording/reproduction apparatus for minimizing va

1991-11-29

1994-03-22

Psitos, Aristotelis

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4425, 369 4429, 369 4435, 2502015, G11B 700

Patent

active

052971147

ABSTRACT:
In the magneto-optic recording/reproduction apparatus, a light beam from a semiconductor laser that can be used with two wavelengths, for recording and reproduction is converged by an objective lens on a magneto-optic disk, a predetermined offset is added to this focusing error signal by an offset adjusting circuit, and the objective lens is driven in the direction of the optical axis based on the focusing error signal to which an offset was added.

REFERENCES:
patent: 4748610 (1988-05-01), Nakata et al.
patent: 4881216 (1989-11-01), Deguchi et al.
patent: 4890274 (1989-12-01), Kaneko et al.
patent: 5084850 (1992-01-01), Yanagawa et al.
patent: 5097458 (1992-03-01), Suzuki
patent: 5099468 (1992-03-01), Suzuki et al.
patent: 5109367 (1992-04-01), Yoshikawa
Isaibovic, Jordan, Videodisc and Optical Memory System, 1985, pp. 113-119.
Pohlmann, Ken C., Principles of Digital Audio, 1985, pp. 236-244.

Affiliated with

Also associated with

Rating

Magneto-optic recording/reproduction apparatus for minimizing va does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magneto-optic recording/reproduction apparatus for minimizing va, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magneto-optic recording/reproduction apparatus for minimizing va will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-442452