Opto-magnetic recording apparatus with a bias magnetic field gen

Details Opto-magnetic recording apparatus with a bias magnetic field gen Opto-magnetic recording apparatus with a bias magnetic field gen

1990-03-22

1991-02-12

Levy, Stuart S.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360114, 360137, G11B 1304, G11B 1112, G11B 1110

Patent

active

049930095

ABSTRACT:
An opto-magnetic recording apparatus for radiating a light beam onto an opto-magnetic recording medium. The opto-magnetic recording apparatus includes a magnet for generating a magnetic field for biasing the opto-magnetic recording medium while the same is irradiated by light, thereby recording information thereon. The opto-magnetic recording apparatus is adapted to receive the opto-magnetic recording medium in a direction extending substantially along a recording surface of the opto-magnetic recording medium. The opto-magnetic recording apparatus further includes a mechanism for removing the magnet from an insertion path when the opto-magnetic recording medium is inserted.

REFERENCES:
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patent: 4740948 (1988-04-01), Nakamori et al.
patent: 4748606 (1988-05-01), Naito et al.
Ojima, et al., "Compact Magnetooptical Disk for Coded Data Storage", Applied Optics, 2/1986, vol. 25, No. 4, pp. 483-489.

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