Opto-magnetic recording apparatus for sequentially driving optic

Details Opto-magnetic recording apparatus for sequentially driving optic Opto-magnetic recording apparatus for sequentially driving optic

1990-04-06

1990-11-20

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 1114

Patent

active

049723952

ABSTRACT:
An opto-magnetic recording apparatus for sequentially driving an optical head driver and a biasing magnetic field generator. The apparatus includes a biasing magnetic field generator for applying a biasing magnetic field to an opto-magnetic recording medium, an optical head for irradiating a light beam spot onto a portion of the medium while the biasing magnetic field is applied, thereby to record or erase information, an optical head driver to drive an optical head by an electromagnetic force to make the light beam spot access desired positions on the medium, and a controller for deactivating the magnetic field generator when the driver is activated and activating the magnetic field generator after the drive by the driver is completed.

REFERENCES:
patent: 4120010 (1978-10-01), Mitsuya
patent: 4316278 (1982-02-01), Endter
patent: 4608676 (1986-08-01), Yoshida et al.
patent: 4701894 (1987-10-01), Watson
patent: 4712203 (1987-12-01), Saito et al.

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