Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Patent
1996-09-27
1998-05-26
Neyzari, Ali
Dynamic information storage or retrieval
Storage or retrieval by simultaneous application of diverse...
Magnetic field and light beam
369116, G11B 1100
Patent
active
057577366
ABSTRACT:
The magneto optical disc is provided with at least first and second recording layers such that the record information is recorded to the first recording layer at a vertically magnetized state thereof and is also recorded to the second recording layer at a vertically magnetized state thereof. The information recording method of recording record information to the magneto optical disc is provided with the steps of: controlling an output power of a recording light; irradiating the recording light to the record position; and applying, while irradiating the recording light to the magneto optical disc, to the record position, an external magnetic field.
REFERENCES:
patent: 5163031 (1992-11-01), Osato
patent: 5168482 (1992-12-01), Arateini et al.
patent: 5239524 (1993-08-01), Sato et al.
patent: 5458987 (1995-10-01), Sato et al.
Neyzari Ali
Pioneer Electronic Corporation
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