| 摘要 |
<P>PROBLEM TO BE SOLVED: To detect rotation of a ball by a simple configuration and to reduce processing burdens. <P>SOLUTION: A track ball includes: a ball 10; rotation transmission disks 24 and 34 rotated in linkage with the rotation of the ball 10; slide disks 25 and 35 moved so as to follow the rotation of the rotation transmission disks 24 and 34 with delay; and sensors 28, 29, 38 and 39 for detecting displacement of the slide disks 25 and 35. <P>COPYRIGHT: (C)2013,JPO&INPIT |
