Method and apparatus for recording information on an opto-magnet

Details Method and apparatus for recording information on an opto-magnet Method and apparatus for recording information on an opto-magnet

1991-04-29

1992-03-03

Levy, Stuart S.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360114, 360 59, G11B 1304, G11B 1112

Patent

active

050938177

ABSTRACT:
Method and apparatus for recording information on an opto-magnetic recording medium by applying an A.C. magnetic field of a constant frequency to the opto-magnetic recording medium as a recording bias magnetic field and scanning the medium by a light beam modulated with a recording signal in synchronism with the A.C. magnetic field to record the information.

REFERENCES:
patent: 3521294 (1970-07-01), Treves
patent: 4422106 (1983-12-01), Sawazaki
patent: 4472748 (1984-09-01), Kato et al.
patent: 4539662 (1985-09-01), Hatano et al.
patent: 4550346 (1985-10-01), Hatano
patent: 4630249 (1986-12-01), Braat et al.
patent: 4633338 (1986-12-01), Sato et al.
patent: 4712203 (1987-12-01), Saito et al.
patent: 4733385 (1988-03-01), Henmi et al.

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