Determining a skew error signal (SES) offset used to determine an SES to adjust heads in a drive unit
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United States of America Patent
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Apr 28, 2015
Grant Date -
Sep 18, 2014
app pub date -
May 28, 2014
filing date -
Jul 10, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Provided are a computer program product, system, and method for determining a skew error signal (SES) offset used to determine an SES to adjust heads in a drive unit. A determination is made of a first difference in a first orientation with respect to a direction of movement of the recordable storage media based on first and second position information read by first and second servo read elements on a first head. A determination is made of a second difference in a second orientation with respect to the direction of movement of the recordable storage media based on third and fourth position information read by the first servo read element and a third servo read element on a second head. An offset, calculated based on the determined first and second difference, is used to generate an error signal to adjust the first and second heads.
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