Magneto-optical reproducing method using a reproducing layer of

Details Magneto-optical reproducing method using a reproducing layer of Magneto-optical reproducing method using a reproducing layer of

1996-10-07

1998-08-11

Dinh, Tan

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369110, G11B 1100

Patent

active

057937125

ABSTRACT:
A method of recording and reproducing information on a magnetooptical recording medium includes the steps of irradiating the medium with laser light to heat a reproducing layer at least to a predetermined temperature at which the layer is vertically magnetizable, thereby rendering the reproducing layer vertically magnetizable and causing it to effect exchange coupling with a recording layer. The method also includes the step of applying a vertical external magnetic field to a portion of the medium irradiated with the laser light and applying a horizontal external magnetic field, weaker than the vertical external magnetic field, during recording and reproducing of data.

REFERENCES:
patent: 5615182 (1997-03-01), Murakami et al.
patent: 5616428 (1997-04-01), Nishimura
Patent Abstract of Japan, vol. 17, No. 438, p. 1591 (Aug. 12, 1993) (Abstract in English of JP 05-089536).

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