Disk drive employing different servo TPI to data TPI ratios across the disk surface
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United States of America Patent
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Jul 19, 2011
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N/A
app pub date -
Dec 19, 2008
filing date -
Dec 19, 2008
priority date (Note) -
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Abstract
A disk drive is disclosed having a first disk surface, and a head actuated over the first disk surface. The first disk surface comprises a plurality of servo tracks and a plurality of data tracks. The data tracks of the first disk surface are banded together into a plurality of data zones, including a first data zone and a second data zone. A first servo tracks per inch (STPI) to data tracks per inch (DTPI) ratio of the first data zone is substantially different from a second STPI to DTPI ratio of the second data zone.
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