Magnetic recording and reproducing system

Details Magnetic recording and reproducing system Magnetic recording and reproducing system

1980-06-24

1983-02-15

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360110, G11B 512

Patent

active

043744036

ABSTRACT:
A magnetic recording and reproducing system having a magnetic switching device of the thin film type which is disposed in a magnetic head and composed of a layer which is made of a magnetic material having a low coercive force and a layer which is made of a magnetic material having a high coercive force both layers are premagnetized by a magnetizing means; the magnetic switching is effected in the magnetic switching device in response to a magnetic recorded signal located on a facing magnetic recording media so that the magnetic switching is detected as a pulse voltage by means of a detecting coil which is wound around the magnetic switching device, so as to thereby generate a reproduced output corresponding to the recorded signal.

REFERENCES:
patent: 3125745 (1964-03-01), Oakland
patent: 3188613 (1965-06-01), Fedde
patent: 3451793 (1969-06-01), Marsushita
patent: 3456250 (1969-07-01), Barcaro et al.
patent: 3526899 (1970-09-01), Speliotis et al.
patent: 3633188 (1972-01-01), Bittman
patent: 3921218 (1975-11-01), Kayser
patent: 4164770 (1979-08-01), Jeffers
patent: 4190871 (1980-02-01), Walraven

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