Method and apparatus for providing write current optimization
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United States of America Patent
Stats
-
Sep 14, 2004
Grant Date -
Apr 17, 2003
app pub date -
Oct 15, 2001
filing date -
Oct 15, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention is a method and system to optimize a write channel in a hard disk drive. The method comprises providing a disk having a at least one side with a plurality of tracks, and selecting a target track from the plurality of tracks. Data is written at least once on a predetermined plurality of tracks adjacent to either side of the target track and on the target track. Data is also written a predetermined number of times on tracks immediately adjacent to the target track. Data written on the predetermined plurality of tracks adjacent to either side of the target track and on the target track is then read. The process then determines if a number of errors on the tracks is greater than a predetermined criteria, if so, a write current value of the write channel is decreased, otherwise the write current value is increased.
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