GENERATING APPARATUS OF HIGH DIRECTIVITY AUDIO FREQUENCY, GENERATING METHOD USING THE SAME, AND RECORDING MEDIUM THEREOF

摘要

PURPOSE: A highly directional audible frequency generation device, a method thereof, and a recording medium thereof are provided to apply a parametric array technique to human body sound communication, thereby generating a highly directional audible frequency. CONSTITUTION: A first piezoelectric element(110) receives a first frequency of a supersonic band. A second piezoelectric element(120) receives a second frequency. The first piezoelectric element and the second piezoelectric element are combined to face with each other. The touch side of the first piezoelectric element and the touch side of the second piezoelectric element are earthed. A highly directional audible frequency of an audible band is generated by overlapping the first frequency and the second frequency. [Reference numerals] (110) First piezoelectric element; (120) Second piezoelectric element;