COMMUNICATION TERMINAL DEVICE

摘要

A communication terminal device is provided with a case; a plurality of keys arranged on the case, by permitting the keys to advance and retract to and from the case, at positions where each finger of a user holding the case hits the keys; a key potential generator for generating a potential depending on shifting of the key in accordance with movement of the fingers of the operator; a coding circuit for converting the generated potential into a transmission code signal; a decoding circuit for converting the received code signal into a potential for shifting the key; a key drive generator for shifting the key by the converted potential from the decoding circuit; and a transmitter/receiver for transmitting and receiving the coded signal.