| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a system capable of excellently using a larger number of wireless microphones in proximity to each other. <P>SOLUTION: A system is provided that includes a plurality of portable wireless microphone transmitter units 14, 16, a plurality of digital receiver modules 20, 22 that alternately transmit wireless synchronization pulses and receive audio information from the plurality of microphone transmitter units synchronized to the synchronization pulses, a coordinator module 24 in communication with each of the digital receiver modules that coordinates transmission of synchronization pulses among the plurality of digital receiver modules in accordance with a predetermined transmission sequence, and a loudspeaker system that receives the audio information from at least some of the microphone transmitter units through the digital receiver modules, amplifies the received audio information, and delivers the amplified audio information exclusively to a geographic area close to a source of the audio information. <P>COPYRIGHT: (C)2012,JPO&INPIT |
