TOUCH SENSING DEVICE
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United States of America Patent
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Issued Date -
Mar 31, 2016
app pub date -
Sep 22, 2015
filing date -
Sep 25, 2014
priority date (Note) -
Abandoned
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Abstract
A touch sensing device for detecting approach of a detection target to a detection area of a sensing face, including a base, detection electrodes, and a controller. The base includes a counterpart area corresponding to the detection area and being located on a deeper side in the touch sensing device relative to the detection area. The detection electrodes are arranged at intervals in the counterpart area, and an electrostatic capacitance between at least one of the detection electrodes and the detection target changes in response to an approach of the detection target to the detection electrode so as to change an output signal from the detection electrode. The controller detects that the detection target approaches the detection area corresponding to the counterpart area when an output signal or signals from a predetermined number, being at least one, of the detection electrode or electrodes in the counterpart area has changed.
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