Recording method on magnetooptical disc with laser magnetic fiel

Details Recording method on magnetooptical disc with laser magnetic fiel Recording method on magnetooptical disc with laser magnetic fiel

1988-07-20

1989-08-15

Faber, Alan

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360 59, 360114, 365122, G11B 1112, G11B 1304

Patent

active

048582123

ABSTRACT:
A magnetooptical disc is initialized by reversing the direction of magnetization at fixed intervals and the direction of external magnetic field applied to it is reversed for each overwrite recording by exposure to laser light.

REFERENCES:
patent: 3474430 (1969-10-01), Heisseier et al.
patent: 4354208 (1982-10-01), Maury
patent: 4412264 (1983-10-01), Imamura et al.
patent: 4446492 (1984-05-01), Yoshimaru
patent: 4472748 (1984-09-01), Kato et al.

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