Drive control apparatus and drive control method for vibration wave driving apparatus
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United States of America Patent
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Feb 2, 2016
Grant Date -
Nov 15, 2012
app pub date -
Jan 25, 2011
filing date -
Jan 28, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
Provided are a drive control apparatus and a drive control method for a vibration wave driving apparatus enabling a wider dynamic range and increased quietness. The drive control apparatus for a vibration wave driving apparatus of the present invention is a drive control apparatus for a vibration wave driving apparatus in which, by providing a drive signal to a vibrator provided with an electro-mechanical energy conversion device, a driven part in contact with the vibrator is relatively moved, wherein, when the driven part is activated by changing a frequency of the drive signal, a time throughout which the drive signal is made to be in an off state is provided every time the frequency is changed.
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