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학술지 Innovative Sound Transmission System for an Intuitive Service
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저자
김성은, 강태욱, 황정환, 강성원, 박경환, 손승원
발행일
201311
출처
Electronics Letters, v.49 no.23, pp.1417-1418
ISSN
0013-5194
출판사
IET
DOI
https://dx.doi.org/10.1049/el.2013.2291
협약과제
12SC1800, 초음파 기반 인체 음향 전송기술, 손승원
초록
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 제안 키워드
Audio signal, Difference frequency, Different frequency, Human body, Nonlinear characteristics, Sound generation, Sound transmission, Transmission line, Transmission medium, Transmission system, the body