发明名称 |
Method for reading magnetic super resolution type magneto-optical recording medium |
摘要 |
A reading method for a magneto-optical recording medium is provided, irradiating laser light as a reading beam and using a magnetic head. High density and high transmission rate are possible and a correct reading can be performed according to the length of recording marks by reading the magneto-optical recording medium while impressing a magnetic field with an orientation promoting the translation of magnetic domain walls. In the magnetic super resolution type magneto-optical recording medium, which attains a signal only from one portion of the irradiation domain of the reading beam and has at least a recording layer and a reading layer on a substrate, the focused laser light is irradiated as a reading beam and the magnetic field is modulated, using the magnetic head, which is equipped with a slider and glides or floats on the recording medium. The magneto-optical recording medium is read, while impressing a magnetic field 161 that accelerates at least the transcription of the magnetization of the recording layer into the reading layer.
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申请公布号 |
US5986977(A) |
申请公布日期 |
1999.11.16 |
申请号 |
US19970883549 |
申请日期 |
1997.06.26 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
BIRUKAWA, MASAHIRO;HINO, YASUMORI;MIYATAKE, NORIO |
分类号 |
G11B11/10;G11B5/596;G11B11/105;(IPC1-7):G11B11/00 |
主分类号 |
G11B11/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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