Position detection apparatus, drive control apparatus, and lens apparatus
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United States of America Patent
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Apr 12, 2016
Grant Date -
Jul 3, 2014
app pub date -
Dec 23, 2013
filing date -
Dec 27, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A position detection apparatus includes a signal output configured to output a plurality of signals, the position detection apparatus detecting a relative position of a position detection target from a reference position on the basis of the plurality of signals, a relative position detection unit configured to detect the relative position of the position detection target from the reference position on the basis of the plurality of signals, an absolute position detection unit configured to detect an absolute position of the position detection target on the basis of the plurality of signals; and a reference position setting unit configured to set the absolute position detected by the absolute position detection unit as the reference position.
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