Magneto-optic recording system

Details Magneto-optic recording system Magneto-optic recording system

1995-02-23

1996-06-18

Epps, Georgia Y.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369110, 360 59, G11B 1100

Patent

active

055285651

ABSTRACT:
A magneto-optic recording system uses a unit recording medium having on a substrate a first magnetic layer whose Curie temperature is low and also having on the first magnetic layer a second magnetic layer whose Curie temperature is high. The system heats a spot on the medium with a heating device. The system may employ two such unit recording media, each having the second magnetic layer magnetized in one direction. The two unit recording media are superposed on each other and formed integrally so as to obtain a magneto-optic recording medium in which the amount of information recorded and the recording speed are doubled. In addition, a light-emitting device and a magnetic field generator are added to the magneto-optic recording medium to obtain a compact magneto-optic recording system with a low level of power consumption.

REFERENCES:
patent: 5287334 (1994-02-01), Iwabuchi et al.
patent: 5369628 (1994-11-01), Yoshimoto et al.
patent: 5392262 (1995-02-01), Finkelstein et al.
patent: 5392263 (1995-02-01), Watanabe et al.

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