Patent ID: 9542031
Date: 2017-01-10
CPC Classifications: G06F

Claim:
1. An input device using detection of both a capacitance and a pressure, comprising: an input part including electrode parts which are arranged with facing each other and with being electrically connectable and one of which has an electrode to be an operation object, and a pressure-sensitive layer which is disposed between the electrode parts facing each other and an electrical resistance of which changes according to a pressure against the electrode part being the operation object by input means of a conductor; a charge/discharge waveform forming part which includes a charge/discharge circuit having at least a constant current source, a switching element, a capacitor and a resistor and which forms a charge/discharge waveform by being connected to the input part; a charge/discharge waveform calculating part which calculates an operation state, an operation position and an operation pressure of the input means by detecting a change of a capacitance and of a pressure in the input part based on a charge/discharge waveform formed by the charge/discharge waveform forming part; and an output part which outputs a signal showing the operation state, the operation position and the operation pressure of the input means calculated in the charge/discharge waveform calculating part.