Magnetic transducer for high density recording or writing

Details Magnetic transducer for high density recording or writing Magnetic transducer for high density recording or writing

1984-06-29

1986-11-11

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Plural gaps

G11B 528

Patent

active

046226150

ABSTRACT:
A transducer for writing data on a magnetic carrier includes a magnetic circuit having a writing pole piece (PPI.sub.2), realized in thin magnetic layers of anisotropic magnetic material. A conductor (CMPI) for controlling the writing is coupled magnetically with the pole piece and acts upon the pole piece for writing a datum by reversing the magnetization. A second control is magnetically coupled with the pole piece (PPI.sub.2), but does not act upon the pole piece except in the case of non-writing by diminishing the effective action of the conductor control.

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patent: 4012782 (1977-03-01), Lazzari
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patent: 4138702 (1979-02-01), Magnenet
patent: 4198667 (1980-04-01), Lazzari et al.
patent: 4287544 (1981-09-01), Lazzari
patent: 4317148 (1982-02-01), Chi
patent: 4323941 (1982-04-01), Lazzari et al.
patent: 4358806 (1982-11-01), Arai
patent: 4385334 (1983-05-01), Yanagida

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