Disk drive selecting TPI profile by estimating head geometry

---A disk drive is disclosed comprising a disk and a head actuated radially over the disk. The head is positioned over a first radial location, and a first data tracks per inch (TPI) is selected for data tracks recorded near the first radial location. The head is positioned over a second radial loca...

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Bibliographic Details
Main Authors Mei, Lin, Chew, Xiaokun L, Yeo, Teik EE
Format Patent
LanguageEnglish
Published 30.03.2010
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Summary:---A disk drive is disclosed comprising a disk and a head actuated radially over the disk. The head is positioned over a first radial location, and a first data tracks per inch (TPI) is selected for data tracks recorded near the first radial location. The head is positioned over a second radial location, and a second data tracks per inch (TPI) is selected for data tracks recorded near the second radial location. The head is positioned over a third radial location, and a third data tracks per inch (TPI) is selected for data tracks recorded near the third radial location. A geometry of the head is estimated in response to TPI, TPI and TPI