| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radio audio system that performs both transmission of an audio signal by radio and communication by another radio device. <P>SOLUTION: A transmitter and a receiver use the same utilization channel; the transmitter detects that the channel has become idle, then waits for a waiting time T1 shorter than the shortest packet interval defined by other radio communication procedures, and then transmits an audio packet; the receiver waits for a waiting time T2 shorter than the shortest packet interval after completion of receiving the audio packet, and then returns a response signal. After completion of transmitting and receiving a prescribed transmission packet number of audio packets according to this procedure, the transmitter and receiver switch the communication channel and repeat the above processing. According to a busy rate of each channel, the number of transmission packets of each channel is updated. <P>COPYRIGHT: (C)2013,JPO&INPIT |
