发明名称 |
Magneto-optical recording and reading method |
摘要 |
A recording and reading method and device of magneto-optical memory elements are provided to record and read an information signal to and from the magneto-optical memory elements, which contain at least two magnetic layers that are magnetically coupled, by means of a light-intensity modulated overwriting method employing a recording magnetic field and an initializing magnetic field. A control feature is included for applying the initializing magnetic field to the magneto-optical memory elements at least one time between the point of time when moving the magneto-optical memory elements to a recording or reading position, finishing a reading or recording, and ascertaining the selected operation such as recording or erasing and the point of time when subsequent recording begins such that the initializing magnetic field is not applied at the same time as the recording magnetic field.
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申请公布号 |
US5270994(A) |
申请公布日期 |
1993.12.14 |
申请号 |
US19920931990 |
申请日期 |
1992.08.19 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
NAKAYAMA, JUNICHIRO;MIYAKE, TOMOYUKI;KATAYAMA, HIROYUKI;OHTA, KENJI |
分类号 |
G11B11/105;G11B19/02;(IPC1-7):G11B7/00 |
主分类号 |
G11B11/105 |
代理机构 |
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主权项 |
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地址 |
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