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论述了多媒体会议电视系统中的数据采集和帧结构分析的方法和实现技术。着重介绍数据采集卡的硬件工作原理、控制软件和结构分析的程序设计方法。该数据采集卡采用FIFO存储技术，通过直接写内存和多次捕获的方法，实现了会议电视系统中付221帧的高速串行数据流的实时采集和存储功能。具有简便实用、身于实现的特点，只需插入一台386以上微机的总线扩展槽即可使用。文中还分析了硬件设计与实现中的关键技术，给出了数据采集卡的硬件设计框图和控制软件流程图，介绍了H．221帧结构分析的软件编程流程及结构分析结果。
Discusses the method and implementation technology of data acquisition and frame structure analysis in multimedia conferencing television system. Focus on the introduction of data acquisition card hardware working principle, control software and structural analysis of the programming method. The data acquisition card adopts FIFO storage technology and realizes the real-time acquisition and storage of high-speed serial data stream of paying 221 frames in the conferencing TV system by directly writing the memory and capturing multiple times. Has a simple and practical, in the realization of the characteristics, just insert a computer bus expansion slot above 386 can be used. The paper also analyzes the key technologies in hardware design and implementation, gives the hardware design block diagram and control software flow chart of data acquisition card, and introduces H. 221 frame structure analysis of software programming flow and structure analysis results.