Dynamic magnetic information storage or retrieval – General recording or reproducing
Patent
1990-07-23
1991-08-20
Heinz, A. J.
Dynamic magnetic information storage or retrieval
General recording or reproducing
360 66, 360131, G11B 502, G11B 503, G11B 574
Patent
active
050419226
ABSTRACT:
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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Electro-Communication Society, No. 46, 1979.
Electronic Related Society, No. 48, 1979.
Gooch Beverley R.
Niedermeyer Rex
Wood Roger W.
Ampex Corporation
Ciotti Thomas E.
Heinz A. J.
LaBarre James A.
Mossino Ralph L.
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