System for applying a perpendicular magnetic field to the illumi

Details System for applying a perpendicular magnetic field to the illumi System for applying a perpendicular magnetic field to the illumi

1989-02-16

1991-06-04

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

Patent

active

050220187

ABSTRACT:
An apparatus for providing a bias magnetic field coincident with the read/write laser in a magneto-optic recording system is disclosed, with special utility for systems wherein the thickness or configuration of the media necessitates a functioning bias magnet being located on the same side of the media as the read/write laser.

REFERENCES:
patent: 4340914 (1982-07-01), Hansoka
patent: 4466004 (1984-08-01), Kobayashi et al.
patent: 4477852 (1984-10-01), Ota et al.
patent: 4497006 (1985-01-01), Deguchi et al.
patent: 4610009 (1986-09-01), Connell
patent: 4660190 (1987-04-01), Fujii et al.
patent: 4701894 (1987-10-01), Watson
patent: 4803674 (1989-02-01), Nakao et al.
patent: 4868802 (1989-09-01), Kobori

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