INPUT DEVICE, INPUT METHOD THEROF, AND INPUT SYSTEM

摘要

PURPOSE: An input device is provided to utilize waves generated by pressure of a user as an input of an electronic device. CONSTITUTION: An input device(100) comprises: keys generating different frequencies each other; a key identification module(38) of a host(200) identify the keys according to frequency of the waves; a sensor unit(32) sensing waves according to pushing one keys of a plurality of the keys, and generating sensing signals.