| 摘要 |
The present invention is to disclose an ultrasonic signal receiver and a position information input device including the same. A signal generating device and the ultrasonic signal receiver are operated by including a battery which can be charged therein, and are combined to a main body part when inputting position information is terminated. The main body part includes a large battery therein which is charged as charging current is supplied from an external electronic device. When the signal generating device and the ultrasonic signal receiver are combined, the same are charged by supplying charging current to the same from the large battery. Therefore, the present invention can be simply carried as the signal generating device and the ultrasonic signal receiver are coupled to the main body part, and can always maintain the charging state as charging current is supplied from the large battery installed in the main body part when the position information is not inputted. |
