Magneto-optic recording apparatus for recording information sele

Details Magneto-optic recording apparatus for recording information sele Magneto-optic recording apparatus for recording information sele

1988-09-09

1990-05-15

Richardson, Robert L.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360114, 369199, G11B 700, G11B 1100, G11B 1114

Patent

active

049264036

ABSTRACT:
A magneto-optical recording system comprises a first optical system carried by a first focusing actuator disposed at a first side of a magneto-optical recording medium and second optical system carried by a second focusing actuator disposed at a second side of the magneto-optical recording medium. When recording an information signal on the first side of the magneto-optical recording medium by means of an optical beam focused by the first optical system, the second focusing actuator is supplied with a biasing current and produces a magnetic field for recording. When recording an information signal on the second side of the magneto-optical recording medium, the first focusing actuator is supplied with a biasing current and produces a second magnetic field for recording.

REFERENCES:
patent: 3774172 (1973-11-01), Silverman
patent: 3905040 (1975-09-01), Otala
patent: 4416003 (1983-11-01), Suzuki
patent: 4566087 (1986-01-01), Kraft

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