Controlling an overshoot amplitude level based on a recording data pattern in a magnetic disk drive
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United States of America Patent
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Nov 9, 2010
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N/A
app pub date -
Aug 3, 2007
filing date -
Aug 4, 2006
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Abstract
Embodiments of the present invention reduce lowering of a recording current and a recording magnetic field that might occur upon execution of write pre-compensation for compensating the NLTS according to a perpendicular magnetic recording method. According to one embodiment, the recording current overshoot is increased for recording a high NLTS recording data pattern. The read signal quality is improved, thereby a highly reliable magnetic disk can be provided.
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