| 摘要 |
A multiple transmission system of one or more information signals on a color television signal, wherein at least one information signal, such as a voice signal, is sampled and coded to form a coded digital signal representing the information signal. The coded digital signal consists of pulses having a bit frequency and a phase identical with the frequency and the phase of the color burst signal of the color television signal. Successive sample values of said coded digital signal are transmitted during the period of the horizontal blanking signal of the color television signal with the phase of the color burst signal so that the superposed coded digital signal represents also the information of the color burst signal.
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