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本文针对Ｉｎｔｅｒｎｅｔ数据通信的特点；提出一种根据用户不同的网络带宽。采用不同的压缩模式，使压缩后的影象数据带宽能最大限度的匹配用户的网络下传带宽，以达到实时传送之目的；并利用ＲｅａｌｐｌａｙｅｒＳＤＫ技术，实际开发了一套针对窄带用户的ＶＯＤ影象传输系统；经实验证明，本系统对不同速率的调制解调器用户和局域网用户可以得到良好的收视效果。
In this paper, the characteristics of Internet data communications; proposed a network bandwidth based on different users. Using different compression mode, the compressed image data bandwidth to maximize the user’s network bandwidth to match the transmission in order to achieve the purpose of real-time transmission; and RealplayerSDK technology, the actual development of a narrow-band user for the VOD image Transmission system; the experiment proved that the system for different rates of modem users and LAN users can get good viewing results.