Magnetic record medium having discrete magnetic storage and...

Details Magnetic record medium having discrete magnetic storage and... Magnetic record medium having discrete magnetic storage and...

G - Physics

11

B

352/31, 352/20.1

G11B 5/03 (2006.01) G11B 5/70 (2006.01)

Patent

CA 1322407

MAGNETIC RECORD MEDIUM HAVING DISCRETE MAGNETIC STORAGE AND SATURABLE LAYERS AND MAGNETIC SIGNAL PROCESSING APPARATUS AND METHOD USING THE MEDIUM Abstract Magnetic record media are described that have an overlying or underlying magnetically saturable high permeability keeper layer in addition to a high coercivity 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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