Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Patent
1983-04-14
1987-06-02
Psitos, Aristotelis M.
Dynamic information storage or retrieval
Storage or retrieval by simultaneous application of diverse...
Magnetic field and light beam
360114, 360 59, 365122, G11B 1100
Patent
active
046708650
ABSTRACT:
A method of recording information on a magneto-optic information storage medium having a normal magnetization film, comprising modulating a recording beam of light with the pieces of information to be recorded on the information storage medium; irradiating the normal magnetization film with the modulated beam of light in the presence of a bias magnetic field; detecting the sensitivity of recording of the information storage medium throughout the recording area of the information storage medium; and controlling the bias magnetic field to vary with the detected sensitivity of recording.
REFERENCES:
patent: 4410277 (1983-10-01), Yamamoto et al.
patent: 4454548 (1984-06-01), Jensen
"Readout Performance Analysis of a Cryogenic Magneto-Optical Data Storage System"; Brown, IBM J. Res. Develop, Jan. 1972.
"Experimental Study on Magneto-Optical Disk Exerciser with the Laser Diaode and Amorphous Magnetic Thin Films", by Imamura et al., Japanese Journal of Applied Physics, vol. 19, pp. L731-L734, Dec. 1980.
Pioneer Electronic Corporation
Psitos Aristotelis M.
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