Journal of the Korean Graphic Arts Communication Society (한국인쇄학회지)
- Volume 23 Issue 2
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- Pages.15-23
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- 2005
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- 1226-1149(pISSN)
Study on the Characteristics of Voice Communication System using Lights
빛을 이용한 음성통신시스템 특성에 관한 연구
- Yoon, Man-Young (Dept. of Information & Communications, College of Engineering, Joong-Bu University) ;
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Shin, Jong-Soon
(Dept. of Graphic Arts & Media, College of Engineering, Joong-Bu University)
- Published : 2005.12.01
Abstract
This analog communication system overcomes a limit of the digital communication that used an electric power line, and shows a strong characteristic by decrease of impedance along a load or surge-voltage and the same noise. this system is to detect an sound signal added to light through an photo-sensor and a filter circuit. And a signal detected in this way is transmitted to sound through a speaker of an earphone again.
Keywords