Static magnetic reading head having a plurality of elementary he

Details Static magnetic reading head having a plurality of elementary he Static magnetic reading head having a plurality of elementary he

1990-04-06

1992-02-18

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Plural gaps

360115, 360119, 360122, 360123, G11B 517, G11B 523, G11B 5265, G11B 5187

Patent

active

050899236

ABSTRACT:
The disclosed static reading head includes a dense network of micro-heads. Each of these micro-heads has a magnetic circuit body made of ferrite, closed by the tape to be read through narrow Permalloy pieces. The micro-heads are associated with lines of excitation wires supplied with DC current with a high-frequency component, and columns of reading wires connected to detection circuits.

REFERENCES:
patent: 2762861 (1956-09-01), Somers
patent: 3626396 (1971-12-01), Eastman et al.
patent: 3662361 (1972-05-01), Mee
patent: 4751598 (1988-06-01), Hamilton
patent: 4992897 (1991-02-01), Deroux-Dauphin
IBM Technical Disclosure Bulletin, vol. 9, No. 2, Jul. 1966, Armonk, N.Y. U.S.A., p. 124, J. R. Morrison et al.: "Readback Head for High-Density Recording".
IBM Technical Disclosure Bulletin, vol. 3, No. 11, Apr. 1961, Armonk, N.Y. U.S.A., p. 18, J. Flora et al.: "Multitrack Probe Type Recording Transducer".
Patent Abstracts of Japan, vol. 10, No. 195 (P-475) (2251) Jul. 9, 1986, JP-A-61 039914, Feb. 26, 1986.

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