Optical recording method and apparatus

Details Optical recording method and apparatus Optical recording method and apparatus

1996-04-08

1998-03-10

Dinh, Tan

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369116, 369 54, G11B 1100

Patent

active

057269548

ABSTRACT:
A method and apparatus for recording data on a magnetooptical recording medium finds an optimum laser beam intensities for recording. The method and apparatus do not cause a low level P.sub.L setting to become excessively low and poor overwriting of data during overwrite recording. Recording can be accomplished changing low level and high level laser beam intensities, while holding the ratio of the low level and high level laser beam intensities constant. Data can be reproduced and evaluated. When the optimum laser beam intensities have not been determined, the intensity ratio of the low level and high level intensities can be altered. After data has been is reproduced and evaluated, the process can be repeated, until the optimum laser beam intensities are obtained. Further, recording can be based on temperature of the recording medium and surroundings to obtain optimum laser beam intensities.

REFERENCES:
patent: 5239524 (1993-08-01), Sato et al.
patent: 5335213 (1994-08-01), Fukumoto et al.
patent: 5337305 (1994-08-01), Hashima et al.
patent: 5390162 (1995-02-01), Fukumoto et al.
patent: 5398227 (1995-03-01), Miyaoka et al.
patent: 5410527 (1995-04-01), Ashinuma
patent: 5475666 (1995-12-01), Ito et al.
patent: 5615182 (1997-03-01), Murakami et al.

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