| 摘要 |
A device for generating a tracking signal and an input system including the same are provided to increase coverage of an ultrasonic signal with the increased intensity of the ultrasonic signal without increasing the thickness of an ultrasonic signal generator by generating the ultrasonic signal at predetermined intervals to amplify the ultrasonic signal with overlap. Two ultrasonic signal generators(240a,240b) respectively generate an ultrasonic signal at predetermined intervals by a control signal. A controller(210) generates the control signal to overlap/amplify the ultrasonic signals and outputs the control signal to each ultrasonic signal generator. A guide(300) includes a radiator(330) radiating the ultrasonic signals, and a guide part receiving the ultrasonic signal generators at the inside and coupled with a main unit(200) supporting the ultrasonic signal generators. The controller generates/outputs the control signal to the ultrasonic signal generator far from the radiator at first between two ultrasonic signal generators to output the overlapped ultrasonic signal through the radiator. |
