SELF-SERVO WRITER WITH ITERATIVE LEARNING CONTROL MECHANISM AND METHOD OF OPERATION THEREOF
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United States of America Patent
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Issued Date -
Sep 13, 2012
app pub date -
Mar 10, 2011
filing date -
Mar 10, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of operation of a servo writing system includes: initializing a disk and a head positioned over the disk for writing a servo pattern on the disk; calculating a target velocity profile for writing the servo pattern on the disk; setting a movement profile for operating the disk, the head, or a combination thereof to the target velocity profile; determining a back electromotive force from operating the disk, the head, or a combination thereof according to the movement profile; calculating an actual profile of the movement of the disk, the head, or a combination thereof from the back electromotive force; and adjusting the movement profile by the actual profile to match the actual profile to the target velocity profile for writing the servo pattern on the disk.
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