| 摘要 |
Wireless input peripheral element for computer, comprising a pen-like input device (5) having a light source (10) capable of transmitting pulses. Two light receivers (20, 21) are provided and these light-receiver elements are arranged so as to detect an incident angle of input light originating from the light source. This wireless input device also has an input unit body (4) having an operational unit for calculating the position of the pen-like input device (5) from the quantities of light detected by the two light-receiver elements (20, 21). <IMAGE> |
