Addressed audio and video signal transmission through optical fibers

摘要

Describes an addressed audio and video signal transmission system in which audio and video signals together with their address consisting of up to 8 frequencies can simultaneously be sent from the sender to the designated receivers through the optical fibers. The received audio signal covered the frequency range of 10 Hz to 20 kHz with a distortion factor of less than 0.5% and with an SNR of 60 dB (62 dB without addresses). The received video signal covered the frequency range of 100 Hz to 4.2 MHz with a differential gain (DG) of less than 1.0% and with a differential phase (DP) of less than 2.5 degrees.