Method of operating pre-amplifier, pre-amplifier, and apparatuses including the same
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United States of America Patent
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Feb 26, 2013
Grant Date -
Feb 17, 2011
app pub date -
Aug 13, 2010
filing date -
Aug 14, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of operating a pre-amplifier of a hard disk drive is provided. The method includes generating a comparison signal corresponding to a result of comparing a reference signal with a difference between differential signals corresponding to write data, and controlling transmission of the differential signals to a write head in response to the comparison signal.
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