| 摘要 |
<p>A wireless input device for computer comprises a pen-type input device, 5, having a source of light capable of transmitting pulses. Two light receiving elements 20, 21 are provided in an input body, 4, and these light receiving elements are disposed for detecting an incident angle of light inputted from the source of light. The input unit body has an operational unit for calculating the position of the pen-type input device from the amounts of light detected by the two light receiving elements. <IMAGE></p> |
