| 摘要 |
The present invention relates to a position measuring device for accurately measuring the position of the tip of an electronic pen, comprising: a position measuring unit for measuring the position of the tip of an electronic pen using a reference signal and an ultrasonic signal, and for inputting the position information of the tip of the electronic pen into an electronic device; a housing having the position measuring unit installed therein; and a coupling means for coupling the housing to a side of the electronic device, the coupling means having one end connected to the housing and the other end coupled to the electronic device. Thus, the present invention improves the reliability of an electronic device by enabling the accurate measurement of the positions of characters or symbols to be inputted when the characters or symbols are inputted into the electronic device with a screen, and enables the convenient use of the electronic device by preventing malfunction and thus reducing the time for inputting characters or symbols. |
