A visible light communication system for transmission
of audio and video signals employing visible LEDs was
presented. The S/PDIF formatted audio signal is digitized
and used to intensity-modulate white illumination LEDs.
Simultaneously, the analog video signal was transmitted
using PWM via red illumination LEDs. The transmission
and signal recovery were successful at the transmission
distance of 50 cm without optical filters. The system
quality was assessed using standard test signals for both
links as well as by viewing the video signal and listening
to the audio signal. It is expected that the proposed system
could be adopted for a number of applications where
high-quality sound and vision are required