| 摘要 |
PROBLEM TO BE SOLVED: To provide an input device capable of preventing erroneous input by detecting any other state than tap operation in the input device which uses a touch sensor of an electrostatic capacitive system.SOLUTION: An input device comprises a touch sensor 11 which detects a change in electrostatic capacitance in response to an input operation, an acceleration sensor 13 which outputs a voltage corresponding to acceleration of the input operation, an acceleration information detection determination circuit 14B including a low-pass filter which removes a frequency component exceeding a first cutoff frequency from the voltage, a first comparator which determines whether the filtered voltage exceeds a first reference voltage value, a high-pass filter which removes a frequency component lower than a second cutoff frequency from the voltage and a second comparator which determines whether the filtered voltage exceeds a second reference voltage value, and an operation determination section 212 which determines that an operator performs a long-push operation to an input operation section in the case where the voltage exceeds the first reference voltage value, the second reference voltage value and a reference variation. |
