Sensor apparatus and information processing apparatus
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United States of America Patent
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May 7, 2013
Grant Date -
Jun 23, 2011
app pub date -
Dec 16, 2010
filing date -
Dec 22, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A sensor apparatus includes a first capacitance element, a second capacitance element, a ground circuit, and a signal processing circuit. The first capacitance element has a first capacitance. The second capacitance element includes a first electrode and a second electrode that form a second capacitance larger than the first capacitance. The ground circuit includes a third electrode arranged adjacently to the first electrode, and converts the second capacitance into a third capacitance smaller than the second capacitance by connecting the third electrode to a ground potential. The signal processing circuit processes a first signal output from the first capacitance element based on a change of the first capacitance, and a second signal output from the second capacitance element based on a change of the third capacitance.
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