Method and apparatus for correcting for random errors in timing pattern generation
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United States of America Patent
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Nov 27, 2001
Issued Date -
N/A
app pub date -
May 21, 1999
filing date -
Dec 1, 1994
priority date (Note) -
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Abstract
Improvements in placement of timing patterns in self-servowriting include correcting for random errors. Random errors may be caused by variations in disk velocity and therefore, one technique for correcting for random errors includes reducing velocity jitter. Additionally, random errors can be corrected by improving interval control during the propagation of trigger patterns used in writing timing information on storage media. Further, random errors, in the writing of timing information, can be corrected during a single revolution of the storage media. This eliminates additional rotations, thereby providing a large capital cost savings.
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