Apparatus and method for removing the effect of interference mag

Details Apparatus and method for removing the effect of interference mag Apparatus and method for removing the effect of interference mag

1978-04-24

1980-07-08

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360122, G11B 512, G11B 520, G11B 530

Patent

active

042120411

ABSTRACT:
A magnetic transducer and method of operation is disclosed for removing the effect of interference magnetic fields present when detecting information magnetically coded on a carrier. The transducer is provided with a magnetoresistive compensating element disposed to develop a voltage in response to the interference magnetic fields equal to that developed across a magnetoresistive detecting element; however, the compensating element is positioned out of the magnetic leakage field of the coded information.

REFERENCES:
patent: 3969769 (1976-07-01), Gorter et al.
patent: 3979775 (1976-09-01), Schwarz

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