Head positioning system for positioning a magnetic head on an eccentric target track
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United States of America Patent
Stats
-
Nov 29, 1988
Grant Date -
N/A
app pub date -
Oct 22, 1986
filing date -
Oct 22, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A head positioning system for driving a magnetic disk from its current track to a target track in the radial direction of a magnetic disk. The positioning system employs a closed loop servo system including a compensation digital filter for generating a compensation signal whose frequency is synchronized with a higher frequency component of the track eccentricity. The system is effective in positioning the magnetic head at the center line of a target track with a high degree of accuracy even if the track is eccentric and in increasing the track density of the disk.
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