Journal of the Korean Graphic Arts Communication Society (한국인쇄학회지)

The Korean Graphic Arts Communication Society (한국인쇄학회)
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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) ;
  • Shin, Jong-Soon (Dept. of Graphic Arts & Media, College of Engineering, Joong-Bu University)
  • 윤만영 (중부대학교 공과대학 정보통신학과) ;
  • 신종순 (중부대학교 공과대학 인쇄미디어학과)
  • Published : 2005.12.01
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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.

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