Proposal of 3 dimension imaginary space touch panel using ultrasonic sensors

It proposes three dimension virtual space touch panel that can be intuitively operated by moving the finger. In the present study, the ultrasonic wave transmission sensor is installed in the finger as a pointer, and four ultrasonic wave reception sensors are put on the floor. Then, three dimension coordinates of the pointer are specified by measuring the distance of each ultrasonic wave reception sensor from the ultrasonic wave transmission sensor. The simulation shows a good performance and accuracy. It is aimed to be used for 3D device operation.