Method and system for position error signal generation using aut

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head

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360 7707, 360 7712, G11B 558

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053092996

ABSTRACT:
The present invention provides a method and system for generating a position error signal from a signal produced by a read element detecting a track comprising two harmonically unrelated patterns positioned parallel to each other on a magnetic media. The apparatus of the present invention produces a delayed signal from the read signal produced by the read element. The read signal is multiplied with the delayed signal to form a product signal. The product signal is integrated to produce a position error signal, wherein changes in the position error signal that are proportional to changes in position of the read element over the two patterns positioned parallel to each other on the magnetic media.

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