Track-curvature detection using clock phase shift in azimuth recording
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United States of America Patent
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May 26, 1998
Grant Date -
N/A
app pub date -
Oct 31, 1996
filing date -
Oct 31, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A servomechanism for controlling the position of a magnetic-tape playback head (16) with respect to a track (24) of digital data on a magnetic tape (22) positions the head by reference to an error signal that error-signal-generation circuitry (FIG. 10). generates. Sample-clock signals obtained from simultaneously read azimuth-recorded data tracks clock respective frequency dividers (52 and 54), and a phase detector 56 generates the error signal by comparing the frequency dividers' outputs.
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