| 摘要 |
PURPOSE: A system for synchronizing IP voice in a multiple wireless network is provided to improve sound quality by revising voice sampling in a slave terminal in consideration of the deviation of clock rates at a master terminal and the slave terminal. CONSTITUTION: A plurality of wireless devices(100-1-100-N) receives a voice signal of the same frequency transmitted from airplanes at different places. A plurality of remote terminals(200-1-200-N) is connected to the plurality of wireless devices by one-to-one to transmit a received an analog audio signal through a wired network. A plurality of slave terminals(300-1-300-N) is wirily connected to the plurality of remote terminals by one-to-one with a cable. The plurality of slave terminals changes the analog audio signal into a digital audio packet of a fixation unit. A master terminal(400) periodically broadcasts a master synchronizing signal to the plurality of slave terminals. A control center terminal(500) synthesizes digital audio packets, transmitted from a plurality of audio pattern converting terminals, into the fixation unit. |
