APPARATUS AND METHOD FOR FOCUSING AND DIRECTING SOUND WAVE THROUGH ULTRASOUND MODULATION

摘要

PURPOSE: A sound wave concentration through the ultrasound modulation, a directionality providing apparatus, and a method are provided to transceiver the desired sound wave to the desired direction, thereby minimizing the surrounding effect. CONSTITUTION: A sound wave concentration through the ultrasound modulation and a directionality providing apparatus (100) comprise a sound wave signal generator (110), an ultrasound wave generator (120), a signal controller (130), a modulator (140), an amplifier (150), and an ultrasound wave converter (170). The sound wave signal generator generates a sound wave signal. The ultrasound wave generator generates an ultrasound signal. The signal controller decides the size and frequency of the sound wave signal or the ultrasound signal. The modulator modulates the sound wave signal and the ultrasound signal into the predetermined modulated electric signal. The amplifier amplifies the modulated electric signal. The ultrasound wave converter converts the signal which is amplified by the amplifier into the modulated ultrasound signal. [Reference numerals] (110) Sound wave signal generator; (120) Ultrasound wave generator; (130) Signal controller; (140) Modulator; (150) Amplifier; (160) Reception unit; (170) Ultrasound wave converter; (AA) Medium