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A contact sensing device includes: a first electrode and a second electrode facing each other, a drive detection circuit of an electrostatic capacitance type, a first switching circuit that implements switching between connection and disconnection between the first electrode and ground, and a second switching circuit that implements switching between connection and disconnection between the first electrode and the second electrode. The drive detection circuit implements switching between a first state and a second state and detects an electrostatic capacitance change in the first state and an electrostatic capacitance change in the second state.
A contact sensing device includes: a first electrode and a second electrode facing each other, a drive detection circuit of an electrostatic capacitance type, a first switching circuit that implements switching between connection and disconnection between the first electrode and ground, and a second switching circuit that implements switching between connection and disconnection between the first electrode and the second electrode. The drive detection circuit implements switching between a first state and a second state and detects an electrostatic capacitance change in the first state and an electrostatic capacitance change in the second state.
CONTACT SENSING DEVICE
NISHIYAMA SHIGEKI (author)
2016-03-24
Patent
Electronic Resource
English
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