公开(公告)号：US20070169555A1

公开(公告)日：2007-07-26

申请号：US11560651

申请日：2006-11-16

Applicant: Peng Gao ,  Xiaobing Sun ,  Kanzo Okada

Inventor： Peng Gao ,  Xiaobing Sun ,  Kanzo Okada

IPC: H04R1/02

CPC classification number: H04R1/403 ,  H04R3/12 ,  H04R2217/03 ,  H04R2499/15

Abstract: An audio-visual reproduction apparatus is provided. The audio-visual reproduction apparatus includes a visual display screen and an ultrasonic transducer array having two or more transducer elements arranged around the periphery of the screen for generating an ultrasonic beam modulated with an audio-frequency signal. Non-linear effects in the air demodulate the audio-signal to generate an audio beam propagating perpendicular to the screen. Such an integration of audio and vision may make the user feel as if the sound is being generated from the display screen when he or she is watching it, and also may project the sound towards a target user and seldom, or never, disturb unrelated persons. The ultrasonic transducer array may be made up of independent transducer elements, or may comprise two or more sub-arrays of transducer elements.

Abstract translation: 提供了一种视听再生装置。 该视听再现装置包括可视显示屏和超声换能器阵列，该阵列具有布置在屏幕周围的两个或更多个换能器元件，用于产生用音频信号调制的超声波束。 空中的非线性效应解调了音频信号以产生垂直于屏幕传播的音频波束。 这样的音频和视觉的集成可能使得用户感觉到当他或她正在观看声音时从显示屏产生声音，并且还可以将声音投射到目标用户，并且很少或从未干扰不相关的人 。 超声换能器阵列可以由独立的换能器元件组成，或者可以包括两个或更多个换能器元件的子阵列。