Magnetic disk drive and method for correcting defective location detected using head disk interference sensor

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United States of America Patent

PATENT NO 8861108
SERIAL NO

14051848

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Abstract

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According to one embodiment, a first defect detector executes a first scan test. The first scan test includes detecting a defect on a disk using a head disk interference sensor by scanning the disk using a head. The first scan test further includes identifying a range of cylinders indicated by servo data read by a read element when the defect is detected, as a first detected location of the detected defect. A compensator corrects the first detected location to a second detected location based on a position difference. The second detected location corresponds to a position of the head disk interference sensor at a time of detection of the defect.

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Patent Owner(s)

  • KABUSHIKI KAISHA TOSHIBA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ikeda, Naomichi Yokohama, JP 2 1

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