Magneto-optical recording method with switching and maintaining

Details Magneto-optical recording method with switching and maintaining Magneto-optical recording method with switching and maintaining

1993-02-26

1994-06-21

Young, W. R.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369110, 369116, G11B 700

Patent

active

053233662

ABSTRACT:
A magneto-optical recording method is disclosed, by which a magnetic recording pattern is formed in an overwriting mode, utilizing demagnetizing field, by directing a light beam onto a perpendicularly magnetized film layer of a magneto-optical recording medium, wherein when recording is being carried out by the application of a light beam onto the perpendicularly magnetized film layer, on switching the direction of magnetization for recording from downward to upward or from upward to downward, when required, with respect to the surface of the magnetized film layer, a light beam application mode for a light-beam applied portion in the magnetized film layer to which the light beam has been applied, and a light beam application mode in a portion in the magnetized film layer immediately after the light-beam applied portion to which the light beam is yet to be applied, are changed.

REFERENCES:
patent: 4882718 (1989-11-01), Kryder et al.
patent: 5020040 (1991-05-01), Lee

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