Magneto-optic recording apparatus and method therefor

U.S. Patent Number: 5394380

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.

Inventors: Hasegawa; Koyo (Tokyo, JP)

Assignee: Canon Kabushiki Kaisha (Tokyo, JP)

Application Number: 08/079,371

Issued: 1995-02-28

Expired: 2007-02-28

Classes: 369/13.22

Field of search: 369/13,14 360/114,59,46,67,68 365/122

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