Thin film magnetic head with three superimposed coils

Details Thin film magnetic head with three superimposed coils Thin film magnetic head with three superimposed coils

1986-01-10

1987-09-15

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Core

360123, G11B 531, G11B 517

Patent

active

046943684

ABSTRACT:
A thin film magnetic head is made with a center-tapped coil structure formed of three layers of coils. The middle coil is configured to be bifilar. When recording data on a magnetic medium, current flows through one-half of the bifilar coil and through one adjacent coil to create positive transitions, and for negative transitions, current flows through the other half of the bifilar coil and through the other adjacent coil. When reading the data that is recorded on a magnetic medium, all turns of the entire coil configuration operate for transducing the data.

REFERENCES:
patent: 3685144 (1972-08-01), Trimble
patent: 4044394 (1977-08-01), Hanazono et al.
patent: 4593334 (1986-06-01), Anderson et al.

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