Title :
Optical audio and video signal transmission system for home appliances
Author :
Li, Jinzhu ; Ikeda, Hiroaki ; Shinohara, Singenobu ; Wakai, Kazuaki ; Yoshida, Hirofumi ; Tsuchiya, Etsuo
Author_Institution :
Shizuoka Univ., Hamamatsu, Japan
fDate :
8/1/1992 12:00:00 AM
Abstract :
The authors describe a four-channel-audio and two-channel-video signal transmission system that constitutes an optical wavelength division multiplexed light-emitting diode (LED) 850/1300-nm network for use in home video, television, or any other video distribution system. Since the pulse frequency modulation scheme was used to modulate the LED, excellent linearity was achieved compared with direct intensity modulation of the light source. The SNR was also improved by increasing the modulation index, although the CNR was decreased by the transmission loss of the optical fiber and the insertion loss of the optical multiplexer
Keywords :
audio signals; audio systems; domestic appliances; frequency modulation; light emitting diodes; multiplexing equipment; optical communication equipment; optical links; optical modulation; video signals; wavelength division multiplexing; 1300 nm; 850 nm; CNR; LED; SNR; TV system; audio transmission system; direct intensity modulation; home appliances; home video; insertion loss; light source; light-emitting diode; modulation index; optical fiber; optical multiplexer; optical transmission system; optical wavelength division; pulse frequency modulation; transmission loss; video distribution system; video signal transmission system; Intensity modulation; Light emitting diodes; Optical fiber losses; Optical fiber networks; Optical modulation; Optical pulses; Propagation losses; Pulse modulation; TV; Wavelength division multiplexing;
Journal_Title :
Consumer Electronics, IEEE Transactions on
