Magneto-optic recording apparatus and method therefor

Details Magneto-optic recording apparatus and method therefor Magneto-optic recording apparatus and method therefor

1993-06-21

1995-02-28

Pascal, Robert J.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360114, G11B 700

Patent

active

053943805

ABSTRACT:
In a magneto-optic recording method and apparatus, an optical head irradiates a magneto-optic recording medium with a light beam, a magnetic head applies a modulated magnetic field to the recording medium to record a signal on the recording medium, a drive circuit supplies a drive signal to the magnetic head, a reference signal generating device causes the drive circuit to generate a reference signal having a predetermined duty, a reproducing device reproduces the signal recorded on the recording medium, a detection circuit detects a duty of a reproduced signal and a control circuit controls the drive signal such that the duty of the signal recorded on the basis of the reference signal and detected by the detection circuit becomes close to the predetermined duty.

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patent: 5220467 (1993-06-01), Zucker
Patent Abstracts of Japan, No. 61-059605, vol. 10, No. 223, Aug., 1986.
Patent Abstracts of Japan, No. 03-276404, vol. 10, No. 100, Mar., 1992.
Patent Abstracts of Japan, No. 03-189944, vol. 15, No. 451, Nov., 1991.

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