Thin film magnetic head with a gap formed between a loop shaped

Details Thin film magnetic head with a gap formed between a loop shaped Thin film magnetic head with a gap formed between a loop shaped

1976-01-12

1978-04-18

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Gap spacer

360121, G11B 525, G11B 527

Patent

active

040854302

ABSTRACT:
A thin-film magnetic head having improved playback properties in which the gap-bounding core parts overlap each other laterally while enclosing a layer having a gap and in which a first core part has the shape of a closed loop and is bridged in the center by a second core part. The parts of the first core part on either side of the bridge are provided with identical coils, while the first core part at the area of the overlap is divided centrally by an extra gap. Upon playing back, the difference signals of the coils then provides an indication as regards the position relative to the track.

REFERENCES:
patent: 3013123 (1961-12-01), Camras
patent: 3889295 (1975-06-01), Billawala

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