Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Patent
1998-09-25
2000-08-15
Dinh, Tan
Dynamic information storage or retrieval
Storage or retrieval by simultaneous application of diverse...
Magnetic field and light beam
G11B 1100
Patent
active
061046760
ABSTRACT:
A magneto-optical information reproducing apparatus and method reproduces information by displacement of a domain wall of a magnetic domain recorded by mark-edge recording on a recording medium. The apparatus applies a magnetic field for reproduction, extracts a signal produced by displacement of a domain wall of one of a front edge and a rear edge of a magnetic domain, then optionally reverses the direction of the magnetic field, and extracts a signal produced by displacement of the domain wall at the other edge. The apparatus may also synthesize a signal produced by displacement of a domain wall at the front edge with a signal produced by displacement of a domain wall at the rear edge, with the synthesized signal being used as the reproduced signal.
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Canon Kabushiki Kaisha
Dinh Tan
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