发明名称 |
Apparatus for selectively inverting a magnetic biased field for magneto-optic recording |
摘要 |
An apparatus for selectively inverting an external magnetic field in a magneto-optic recording system so that information can be selectively recorded on or erased from a magneto-optic recording element of the system moving through said field, the apparatus comprises a permanent magnet having its north and south poles oriented along its cross-sectional dimension. A core having a shape which is adaptable to selectively impart a predetermined magnetic field to the permanent magnet for rotating the permanent magnet, which directs a flux generated by the predetermined magnetic field for reducing electro-magnetic interference, and which defines a preferential orientation of the magnet for selectively maintaining the magnet in the preferential orientation.
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申请公布号 |
US5544132(A) |
申请公布日期 |
1996.08.06 |
申请号 |
US19950403030 |
申请日期 |
1995.03.13 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
FURLANI, EDWARD P.;LEE, J. KELLY |
分类号 |
G11B11/105;(IPC1-7):G11B13/04 |
主分类号 |
G11B11/105 |
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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