Information reproducing method and apparatus for reproducing inf

Details Information reproducing method and apparatus for reproducing inf Information reproducing method and apparatus for reproducing inf

1997-09-18

1999-10-12

Neyzari, Ali

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369 47, G11B 1100

Patent

active

059663480

ABSTRACT:
Method and apparatus for reproducing information by enlarging a magnetic domain on a medium by moving a magnetic wall. The apparatus includes a heating device for partially heating the medium in order to cause movement of the magnetic wall, and a magnetic head for detecting a leakage magnetic field generated in association with movement of the magnetic wall, wherein the information is reproduced on the basis of a detection result of the magnetic head. The medium is made up of a layer in which the magnetic wall moves, an intermediate layer, and a layer in which information is accumulated. The magnetic head is arranged on the layer side where the magnetic wall moves. The heating device is arranged on the side of the layer in which information is accumulated.

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patent: 5648134 (1997-07-01), Shiratori et al.
patent: 5754500 (1998-05-01), Tanaka et al.

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