Bias control method and apparatus for magnetic recording

Details Bias control method and apparatus for magnetic recording Bias control method and apparatus for magnetic recording

G - Physics

11

B

352/20.7

G11B 5/03 (2006.01)

Patent

CA 1173560

Abstract Bias Control Method and Apparatus For Magnetic Recording An input signal and a variable amplitude AC bias signal are applied to a record head in a magnetic media recorder. The AC bias signal amplitude is controlled by a feedback circuit in response to the total active bias signal applied to the record head, the total active bias signal including the AC bias signal and the high frequency portion of the input signal.

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