| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an operation input device capable of improving a function recognition property of an operation part in comparison with a conventional one. <P>SOLUTION: The operation input device is provided with a plurality of operation keys, a sound output means and/or a vibration generation means for vibrating a plurality of operation keys, and a control means for controlling the sound output means for outputting sound matching a depressed operation key and/or controlling the vibration generation means for generating vibration matching the depressed operation key. The control means changes volume and/or tone of the sound and/or changes strength of the vibration according to use frequencies of a plurality of operation keys. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
