Method and apparatus for measuring dynamic track...

Details Method and apparatus for measuring dynamic track... Method and apparatus for measuring dynamic track...

G - Physics

11

B

352/21.32

G11B 21/10 (2006.01) G11B 33/10 (2006.01)

Patent

CA 1309176

ABSTRACT OF THE DISCLOSURE A method and apparatus for measuring dynamic head and track misregistration in, for example, a magnetic disk file. A reference signal waveform is recorded onto a track on a recording medium. The track has a center line and an off-center line parallel to the center line. The recorded reference signal waveform is read a plurality of times with the transducer centered approximately above the off-center line of the track to produce a plurality of off-track playback signal waveforms. A track misregistration signal waveform is produced by computing the difference between one off-track playback signal waveform and the average off-track playback signal waveforms. YO987-029

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