Dynamic magnetic information storage or retrieval – General recording or reproducing – Specifics of biasing or erasing
Patent
1993-03-12
1995-02-14
Hajec, Donald
Dynamic magnetic information storage or retrieval
General recording or reproducing
Specifics of biasing or erasing
G11B 503
Patent
active
053900545
ABSTRACT:
A digital recording system utilizing a magnetoresistive transducer in a magnetic recording head. The system measures the amplitude of an output signal, E.sub.o, from the transducer for various bias currents as a recorded magnetic media passes by the head. The system then determines the bias current for which the output signal, E.sub.o, is maximized and multiplies that bias current by a suitable factor. The system then operates at the calculated bias current level, thereby minimizing the error rate of the system.
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Molstad Richard
Ngo Tim
Schwarz Theodore
Youngquist Robert
Griswold Gary L.
Hajec Donald
Kim Won Tae C.
Kirn Walter N.
Levinson Eric D.
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