Magneto-optical recording device for improving C/N ratio

Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam

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369110, G11B 1304

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active

054756588

ABSTRACT:
A magneto-optical recording device having a light source and external magnetic field applying apparatus, which records information on a magneto-optical recording medium with a magnetic field modulation method. The device has a controller which stops the irradiation of a light beam when switching the direction of applying external magnetic field during recording. This allows an area where information is recorded with a low external magnetic field to be smaller, and thereby achieving reproduced signal of improved quality.

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Fujita, et al., "A Magneto-Optical Recording Method of Magnetic Field Modulation with Pulsed Laser Irradiation," Japanese Journal of Appl. Physics, vol. 28 (1989) Supp. 28-3, pp. 329-333.

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