发明授权
- 专利标题: Process and apparatus for simultaneous erasure and recording in magneto-optical recording
- 专利标题(中): 在磁光记录中同时擦除和记录的方法和装置
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申请号: US131327申请日: 1987-12-08
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公开(公告)号: US4853912A公开(公告)日: 1989-08-01
- 发明人: Hideki Akasaka , Masatoshi Sato
- 申请人: Hideki Akasaka , Masatoshi Sato
- 申请人地址: JPX Tokyo
- 专利权人: Nikon Corporation
- 当前专利权人: Nikon Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX59-91360 19840508
- 主分类号: G11B11/10
- IPC分类号: G11B11/10 ; G11B11/105
摘要:
A magneto-optical recording process is produced by irradiating a recording track of a recording medium, in the course of movement thereof, with a main light beam of intensity sufficient for heating the medium to a temperature at which the coercive force thereof is reduced to zero or a very small value in a continuous manner during the recording operation and irradiating a separating area with a subsidiary beam of a modulated intensity, thereby modulating the vertical magnetization of said separating area. A floating magnetic field generated by the thus modulated vertical magnetization generates magnetic fields of mutually different directions, thus forming a record bit on the recording track.
公开/授权文献
- US6031441A Ballast stabilizer and its fabrication method 公开/授权日:2000-02-29
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