多媒体通信系统的五大关键技术多媒体通信系统特指那些能对多种表示媒体进行处理，同时能使多种显现媒体工作的通信系统。多媒体通信系统是一个大系统，它至少涉及终端设备、网络接入设备和数据库等主要设备。每一种设备的研究都会涉及若干关键技术，这里主要从系统的角度... Five key technologies of multimedia communication system The multimedia communication system especially refers to those communication systems that can handle a variety of presentation media and enable a variety of presentation media to work at the same time. Multimedia communication system is a large system, it involves at least terminal equipment, network access equipment and databases and other major equipment. The research on each device involves a number of key technologies, mainly from the system point of view.