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论述了局域网会议电视系统的组成特点，根据在一个多点会议中MCU与终端硬件构成和分工协作情况，提出了3种多点会议的组织方式，即集中方式、分散方式和混合方式，并分析了各自的特点和应用场合及当前流行的多点控制模式─—主席控制模式的实现过程．
Based on the hardware composition and division of labor between MCU and terminal in a multi-point conference, the paper presents the organization methods of three kinds of multi-point conferences, namely centralized mode, decentralized mode and mixed mode, and analyzes Their own characteristics and applications and the current multi-point control mode ─ ─ chairman of the realization of the control mode.