Track following method by using off-track and on-track offset adjusting method in magnetic disk driving device
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United States of America Patent
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Mar 24, 1998
Grant Date -
N/A
app pub date -
Sep 15, 1995
filing date -
Oct 27, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for following and reading data from a corresponding track on a magnetic disk has two embodiments. Under the first embodiment, an on-track offset value is adjusted upwardly and downwardly in an alternating manner, wherein each successive adjustment increases or decreases by a predetermined step value. Under the second embodiment, maximum and minimum values for the on-track offset value are determined by incrementing the on-track offset value upwardly and downwardly, respectively, an average value based on these maximum and minimum on-track offset values is computed, and the average value is designated as an initial on-track offset value.
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