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Journal Article Innovative Sound Transmission System for an Intuitive Service
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Authors
S.E. Kim, T.W. Kang, J.H. Hwang, S.W. Kang, K.H. Park, S.W. Sohn
Issue Date
2013-11
Citation
Electronics Letters, v.49, no.23, pp.1417-1418
ISSN
0013-5194
Publisher
IET
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1049/el.2013.2291
Project Code
12SC1800, Human body sympathetic UI-based new interaction techniques, Sohn Sung Won
Abstract
An innovative sound transmission system for an intuitive service utilises the human body as a sound transmission medium. By using the human body as a transmission medium, sound generation in the body and sound transmission through the body can be achieved at the same time. Sound generation in the body is based on the nonlinear characteristics of the human body. Two ultrasonic waves with different frequencies produce an audio signal at the difference frequency of the two waves during the propagation process due to the nonlinearity of the body. By substituting a transmission line with the human body, wireless sound transmission is achieved. This system does not require sound transmitters and the sound transmission line required in the conventional earphones. Users can hear sound without sound transmitters and a transmission line by touching the system without making any other noise outside. © The Institution of Engineering and Technology 2013.
KSP Keywords
Audio signal, Difference frequency, Different frequency, Human body, Nonlinear characteristics, Sound generation, Sound transmission, Transmission line, Transmission medium, Transmission system, the body