| 摘要 |
a light connector module(22) of a light emitting part as a signal output terminal of an audio/video apparatus generating an audio/video signal; a light connector module(24) of a detecting part as a signal input terminal of a TV receiver receiving the audio/video signal; and an optical fiber(23) connecting light connector modules. The light connector module of a light emitting part converts the audio/video signal into an optical pulse and the light connector module converts the optical signal transmitted through the optical fiber into an audio/video signal. The light modulation method is characterized by the features that: a multi signal comprising an image signal 1 channel and a voice signal 2 channels is transmitted through one optical fiber; the image signal is transmitted in base band and 2 channels of the voice signal arrange a carrier frequency besides the band of the image signal after high frequency-conversion; and in the arrangement of the carrier frequency, an add level of the voice signal is lower than the maximum amplitude of the image signal. |
