Asymmetrical shields for controlling feedthrough in read/write h

Details Asymmetrical shields for controlling feedthrough in read/write h Asymmetrical shields for controlling feedthrough in read/write h

1984-09-26

1987-01-27

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Plural gaps

360113, 360128, G11B 5115, G11B 514, G11B 527

Patent

active

046398082

ABSTRACT:
An improved magnetic tape transducer of the type having both a write head and a read head in the same assembly, includes asymmetrical shields disposed on either side of a magnetoresistive element comprising the read head in order to reduce magnetic feedthrough between the write head and the read head. The shield upon the side of the magnetoresistive element which is closer to the write head has a thinner cross-section than the shield on the other side, thereby balancing the amount of coupled flux from the write head and reducing the resultant feedthrough.

REFERENCES:
patent: 3975772 (1976-08-01), Lin
patent: 4001890 (1977-01-01), Kayser
patent: 4072993 (1978-02-01), Nomura et al.
patent: 4320428 (1982-03-01), Somers

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