Selectively controlling the erasure in a magneto-optic recording

Details Selectively controlling the erasure in a magneto-optic recording Selectively controlling the erasure in a magneto-optic recording

1986-12-22

1988-12-06

Cardillo, Raymond F.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

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

Patent

active

047899727

ABSTRACT:
In a magnetic recorder, magnetooptic, for example, the erasure dircetion for successive recording areas (sectors) are determined by the direction of magnetization of prior recording. A mark is placed in each sector for identifying its erasure direction.

REFERENCES:
patent: 3821703 (1974-06-01), Irivin et al.
patent: 4412264 (1983-10-01), Imamura
patent: 4472748 (1984-09-01), Kato et al.
patent: 4539662 (1985-09-01), Hatano
patent: 4670865 (1987-06-01), Hatano
patent: 4701894 (1987-10-01), Watson
patent: 4701895 (1987-10-01), VanSant

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