Magneto-optical information recording method and apparatus in wh

Details Magneto-optical information recording method and apparatus in wh Magneto-optical information recording method and apparatus in wh

1990-02-01

1992-09-01

Nguyen, Hoa

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369 4413, 369110, 369112, G11B 1304, G11B 1112

Patent

active

051446022

ABSTRACT:
By performing a recording operation and an erasing operation while oscillating a position of a laser beam irradiation on an optical recording medium in a direction perpendicular to the track direction, an improvement in the S/N ratio during reproduction and a reduction of jitter in the detecting signal are attained. As an element for oscillating the laser beam irradiation position in the direction perpendicular to the track direction, an acousto-optical deflector or an electro-optical deflector is used.

REFERENCES:
patent: 4791627 (1988-12-01), Yonezawa
patent: 4802153 (1989-01-01), Kataoka et al.
patent: 4886958 (1989-12-01), Merryman et al.
patent: 4907211 (1990-03-01), Horimai et al.
patent: 4949331 (1990-08-01), Maeda et al.

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