发明名称 Magneto-optical recording method capable of determining optimum laser beam intensities
摘要 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 PL 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.
申请公布号 US5862103(A) 申请公布日期 1999.01.19
申请号 US19970954663 申请日期 1997.10.20
申请人 NIKON CORPORATION 发明人 MATSUMOTO, HIROYUKI;KURITA, SHINICHI;ISHII, KOICHIRO;HORIKAWA, MASASHI
分类号 G11B7/0045;G11B7/006;G11B7/125;G11B11/105;(IPC1-7):G11B11/00 主分类号 G11B7/0045
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