| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a communication system capable of, when a receiver individually receives an audio signal transmitted from a transmitter, outputting the audio signal stably, and capable of, when the receiver performs control instructed by the transmitter, preventing a response from being delayed. <P>SOLUTION: A communication system includes a transmitter (a microphone device 1) and a receiver (a speaker device 15). The transmitter transmits a tone signal in which DCS data are superimposed on control data, together with an audio signal. The receiver switches whether to output the audio signal or not on the basis of the DCS data extracted from the tone signal, and performs prescribed control instructed by the microphone device 1 on the basis of the control data extracted from the tone signal. The control data superimposed on the tone signal is transmitted prior to the DCS data. When the control data is extracted from the tone signal, the speaker device 15 outputs the audio signal even if the DCS data is not extracted. <P>COPYRIGHT: (C)2013,JPO&INPIT |
