APPARATUS FOR USER INPUT BASED ON A SONIC VIBRATION AND METHOD THEREOF

摘要

The present invention relates to a user input device based on sonic vibration amplification, a user input system and a method thereof and, more specifically, to a technique for amplifying a user input by applying the principle of a stethoscope. The user input device based on sonic vibration amplification accodirng to an embodiment of the present invention comprises: a pad part for receiving the sonic vibration of a user; a membrane for pushing the sonic vibration input through the pad part; a pipe connected to the lower part of the membrane to pass the sonic vibration that has been transmitted through the membrane; a first pressure sensor for measuring pressure around the pipe; a second pressure sensor for measuring pressure at the exit side of the pipe; and a comparison part for comparing the output signal of the first pressure sensor with the output signal of the second pressure sensor.