| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an input/output device which easily outputs the sound and image, etc., of a musical instrument or the like at a low cost. <P>SOLUTION: A sheet 21 where a keyboard 51 is drawn is placed on a sheet mounting base 11 where a virtual screen S is set, the sheet 21 is photographed in an image pickup part 13, a coordinate area on the virtual screen S on a sheet surface is generated for each key 51a and the sound of a frequency corresponding to the key 51a is related to each coordinate area. The state of indicating the key 51a of the keyboard 51 by a light emitting part 41 is photographed in the image pickup part 13 and the sound related to the coordinate area on the virtual screen S indicated by the light emitting part 41 is generated as the sound corresponding to the key 51a. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
