초록 ▼

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

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 waveform.

대표청구항 ▼

An apparatus for measuring dynamic track misregistration in a record/playback device, said device comprising a transducer and a recording medium, said apparatus comprising: means for recording a reference signal waveform onto a track on the recording medium, said track having a center line and an of

An apparatus for measuring dynamic track misregistration in a record/playback device, said device comprising a transducer and a recording medium, said apparatus comprising: means for recording a reference signal waveform onto a track on the recording medium, said track having a center line and an off-center line parallel to the center line; means for reading the recorded reference signal waveform 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; means for averaging a number of off-track playback signal waveforms to produce an average off-track playback signal waveform; and means for calculating the difference between one off-track playback signal waveform and the average off-track playback signal waveform to produce a track misregistration signal waveform.