Dynamic magnetic information storage or retrieval – Head – Hall effect
Patent
1985-08-15
1987-03-10
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Head
Hall effect
338 32R, 324252, G11B 5127
Patent
active
046494472
ABSTRACT:
A magnetic head assembly includes a magnetoresistive (MR) element for reading magnetically recorded information from a record medium. The MR element comprises an elongated member having a predetermined height and a plurality of elongated attachments which are contiguous with and made of the same material as the MR element. The elongated attachments have a predetermined width and a predetermined spacing and the attachments are unidirectionally magnetized along their length so that a bias is produced to maintain the MR sensor in a single domain state and to obtain a substantially linear component in the MR response in the MR element so that Barkhausen noise is suppressed and so that previously recorded information is read from the medium with optimum sensitivity.
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Huang Shiezen
Voegeli Otto
International Business Machines
Schmid, Jr. Otto
Sniezek Andrew L.
Tupper Robert S.
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