Patent ID: 7224343

Claim:
An input apparatus that is provided on a housing of a portable electronic device and with which an input operation by a user is performed, comprising: a contact detection sensor, which is provided near a rotating component of said portable electronic device, and which detects contact by a living body or an object based on an input operation by said user with a portion of a surface of a cylindrical member as a detection area; control means, which performs input processing for accepting input of a predetermined function in accordance with a contact position, a change in said contact position or the area of a contacted portion detected by said contact detection sensor, and which outputs an actuating signal based on a change in said contact position of or above a predetermined amount and/or the size of said area of said contacted portion; and an actuator for temporarily vibrating at least an area close to where said contact detection sensor is provided by said actuating signal outputted by said control means.