摘要： 多媒体实时交互环境是建立实时协同设计系统的重要手段之一，这种环境将使普通多媒体会议系统原本存在的网络带宽资源占用量大的问题表现得尤其突出，提出了一种将本地多播与远程定向传输相结合的混合式的多媒体信息处理与传输方法，使实时协同设计系统中多媒体数据的网络带宽占有量明显下降。

关键词: 实时协同设计, 多媒体信息, 多播

Abstract: The multimedia interactive environment is one of the essential means in real-time cooperative application. This environment will enlarge very much the problem for the occupation of large volume network bandwidth resource, which exists originally in ordinary multimedia conferencing system. Based on unicast and multicast way, a hybrid multimedia information process and transmission method is put forward, which makes the occupation of network bandwidth for multimedia information transmission in read-time cooperative design application decreased distinctly.

中图分类号: 

• TP391.7