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Conference Paper Generation of Audible Sound with Ultrasonic Signals through the Human Body
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Authors
S. E. Kim, J. H. Hwang, T. W. Kang, S. W. Kang, S. W. Sohn
Issue Date
2012-06
Citation
International Symposium on Consumer Electronics (ISCE) 2012, pp.1-3
Publisher
IEEE
Language
English
Type
Conference Paper
DOI
https://dx.doi.org/10.1109/ISCE.2012.6241713
Project Code
11SC1700, Human body sympathetic UI-based new interaction techniques, Sohn Sung Won
Abstract
This paper presents an innovative hearing system. The hearing system generates audible sound in the ears without any receivers, and no one can hear the generated sound except the user. The theory for generating audible sound is based on a self-demodulation effect which arises from the nonlinearity of the transmission medium. The nonlinear acoustics of the human body allow ultrasonic waves to interact in the transmission medium. When two ultrasonic waves with different frequencies are transmitted through the human body, an audio signal at the difference frequency of two waves is produced in the ears due to the self-demodulation effect. © 2012 IEEE.
KSP Keywords
Audible sound, Audio signal, Difference frequency, Different frequency, Human body, Self-demodulation, Transmission medium, Ultrasonic signal, nonlinear acoustics, ultrasonic waves