Dynamic magnetic information storage or retrieval – Head – Hall effect
Patent
1975-08-18
1977-09-27
Eddleman, Alfred H.
Dynamic magnetic information storage or retrieval
Head
Hall effect
338 32R, G11B 512, G11B 522
Patent
active
040515427
ABSTRACT:
A thin ferromagnetic sheet or layer exhibiting magnetoresistance property is connected in the magnetic circuit of a magnetic head including a head or air gap, and a pair of current terminals are attached to the thin ferromagnetic sheet and spaced apart by a predetermined distance from each other so as to flow the current of a predetermined magnitude through the thin ferromagnetic sheet, whereby the variation in magnetic field produced by a magnetic recording medium passing over the head or air gap may be detected in terms of the voltage variation between the current terminals.
REFERENCES:
patent: 3274575 (1966-09-01), De Koster
patent: 3493694 (1970-02-01), Hunt
patent: 3881190 (1975-04-01), Brock et al.
patent: 3887945 (1975-06-01), Nepela
patent: 3945038 (1976-03-01), Lazzari
patent: 3967368 (1976-07-01), Brock et al.
Eddleman Alfred H.
Matsushita Electric - Industrial Co., Ltd.
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