| 摘要 |
A data/audio multiplex transmission system comprising an audio modulator to modulate an input audio signal and output the modulated audio signal, an optical pulse signal generator to generate an optical pulse signal for carrying a LAN data, amplitude of the optical pulse signal being modulated by the modulated audio signal, according to the LAN data and the modulated audio signal, an optical fiber to propagate the optical signal output from the optical pulse signal generator, an opto-electric converter to convert the optical signal propagated on the optical fiber into an electric signal, a filter to extract a predetermined band out of the output signal from the opto-electric converter, an audio demodulator to demodulate the audio signal out of the output from the filter, and a data transmitter to transmit the LAN data included in the output signal from the opto-electric converter for a LAN.
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