Beam controller for magneto-optical disc memory system

Details Beam controller for magneto-optical disc memory system Beam controller for magneto-optical disc memory system

1986-10-16

1989-06-27

Faber, Alan

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369106, 369 13, 250205, G11B 1112

Patent

active

048436046

ABSTRACT:
A beam controller for controlling a semiconductor laser included in an optical recording-play-back apparatus. The beam controller is comprised of first and second current sources for driving the semiconductor laser at a low level during a play-back mode and at a high level during an erasing mode. The first and second current sources are respectively automatically controlled by a first and second auto-power control circuit to provide stable power outputs.

REFERENCES:
patent: 4404479 (1983-09-01), Toyomaki
patent: 4509156 (1985-04-01), Ohara et al.
patent: 4651034 (1987-03-01), Sato
Hatsios, IBM Tech. Dis. Bulletin, p. 761, vol. 13, No. 3, Aug. 1970.

Affiliated with

Also associated with

Rating

Beam controller for magneto-optical disc memory system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Beam controller for magneto-optical disc memory system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beam controller for magneto-optical disc memory system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-818937