INPUT DEVICE

Abstract

An input device is provided that is configured to detect a position at which an operator input occurs based on an input signal and a reflected signal. The input device comprises a signal generator configured to produce a waveform signal; a transmission line with a first end connected to the signal generator and a second end opposite the first end, configured to transmit the waveform signal; and a reflection-free termination connected to the second end of the transmission line.and a position determination unit configured to determine, on the basis of an input signal, which is the waveform signal fed into the transmission line by the signal generator, and a reflected signal generated by the input signal being reflected towards the first end by an object moving between the first end and the second end of the transmission line, an approach position at which the object is located near the transmission line.