Bias magnetic field generating apparatus for magneto-optical rec

Details Bias magnetic field generating apparatus for magneto-optical rec Bias magnetic field generating apparatus for magneto-optical rec

1990-12-27

1993-07-20

Beausoliel, Jr., Robert W.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360 59, 360114, G11B 1304, G11B 1112

Patent

active

052299830

ABSTRACT:
An apparatus for generating a bias magnetic field to a magneto-optical disk includes a movable magnet which serves to generate a bias magnetic field. A suitable device serves to generate a drive magnetic field to move the magnet. A stopper is engageable with the magnet to stop the magnet at a predetermined position.

REFERENCES:
patent: 4701895 (1987-10-01), VanSant
patent: 4748606 (1988-05-01), Naito et al.
patent: 4962492 (1990-10-01), Mathildus et al.
patent: 4972337 (1990-11-01), Eguchi et al.
patent: 4984224 (1991-01-01), Tsuyuguchi et al.
patent: 5038330 (1991-08-01), Tanaka

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