| 摘要 |
PURPOSE: A video conference system for adding a microphone is provided to reduce a producing cost by increasing the number of microphones without additional installation of audio mixers. CONSTITUTION: A video conference system includes microphone devices, cameras and a video conference controller. The microphone device includes a microphone, the first amplifier, a signal sensor, a touch switch, a touch sensor, the second amplifier, a timing controller, a communicating unit, an MCU(Main Controller Unit) and a switch. The Camera is installed in different location and captures images of a designated person respectively. The video conference controller includes a key input unit(110), an audio processor(112), a video matrix(114), a conference room monitor(118), a main controller monitor(120), an MCU(122) and a memory(124).
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