| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a signal generator for tracking a position, which can increase the arrival distance of an ultrasonic signal without increasing the thickness of the signal generator for tracking a position, and to provide an input system using the signal generator for tracking a position. <P>SOLUTION: The signal generator for tracking a position and the input system using the same are provided. The signal generator for tracking a position has effect for increasing the intensity of an ultrasonic signal and its arrival distance by generating an ultrasonic signal at a fixed time interval so that ultrasonic signals generated by a plurality of ultrasonic signal generation sections can be superposed for amplification. Also, the signal generator for tracking a position has effect for solving a problem in a prior art, namely a problem where the thickness of the signal generator for tracking a signal increases because a large ultrasonic sensor is used to increase the intensity of an ultrasonic signal by the structural features. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
