Transducer positioning system

Details Transducer positioning system Transducer positioning system

G - Physics

11

B

352/21.32

G11B 17/00 (2006.01) G11B 5/596 (2006.01)

Patent

CA 1044804

ABSTRACT A transducer positioning system is disclosed wherein a transducer is positioned over a magnetic disc by sensing previously recorded information. The information consists of separately identifiable magnetic recordings occurring on adjacent tracks of a disc surface. The information is sensed by a servo transducer which produces a servo signal containing responses to each identifiable magnetic recording. A transducer position is defined when the signal strength of each of the responses is exactly equal. The signal strengths of each response are evaluated by a novel detection system which first identifies the responses within the servo signal. The peak amplitudes of the responses are thereafter separately measured and separate signals are produced indicative of the measured peak amplitudes. These separate signals are thereafter combined so as to indicate whether the signal strength of either response dominates over the other. -1-

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