发明公开
- 专利标题： PHOTOMAGNETIC RECORDING METHOD
- 专利标题（中）： 照片AUFZEICHNUNGSVERFAHREN。
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申请号： EP89902543.1申请日： 1989-02-18
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公开(公告)号： EP0358775A1公开(公告)日： 1990-03-21
- 发明人: INOUE, Hideki
- 申请人： Sony Corporation
- 申请人地址： 7-35 Kitashinagawa 6-chome Shinagawa-ku Tokyo 141 JP
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： 7-35 Kitashinagawa 6-chome Shinagawa-ku Tokyo 141 JP
- 代理机构： Cotter, Ivan John
- 优先权： JP3626988 19880218
- 国际公布： WO1989007823 19890824
- 主分类号： G11B11/10
- IPC分类号： G11B11/10 ; G11B5/02
摘要：
This invention relates to a photomagnetic recording method for writing data into a photomagnetic medium by using a magnetic head whose magnetic field is modulated by a recording signal and an optical pickup. In accordance with the present invention, a first data pit group is first recorded on the photomagnetic recording medium with gaps greater than a predetermined data pit recording gap and then each data pit of a second data pit group is recorded between the adjacent data pits of the first data pit group. A photomagnetic recording apparatus according to the present invention can cope, by interleaving write method, with both the factors of frequency characteristics of the magnetic head and the thermal interference of adjacent pits that limit high density recording or high speed access, and can accomplish both high density recording and high speed access.
公开/授权文献
- EP0358775B1 PHOTOMAGNETIC RECORDING METHOD 公开/授权日：1994-10-12
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