发明名称 |
Magnetic recording medium having magnetic storage and saturable layers, and apparatus and method using the medium |
摘要 |
Magnetic record media are described that have an overlying or underlying magnetically saturable high permeability keeper layer in addition to a high coervicity magnetic layer in which magnetic signals are stored. These media are used in magnetic signal processing devices whose transducers are capable of generating a keeper layer-saturating bias flux. In signal reproduction the bias flux magnetically forms a saturation zone in the nature of virtual gap in the keeper layer that directs signal flux between the media and the transducer.
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申请公布号 |
US5041922(A) |
申请公布日期 |
1991.08.20 |
申请号 |
US19900555811 |
申请日期 |
1990.07.23 |
申请人 |
AMPEX CORPORATION |
发明人 |
WOOD, ROGER W.;GOOCH, BEVERLEY R.;NIEDERMEYER, REX |
分类号 |
G11B5/00;G11B5/02;G11B5/09;G11B5/66;G11B5/74 |
主分类号 |
G11B5/00 |
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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