Then the software design is explained, including head-end system software, DVB module software, USB driver program and file receive mechanism.

接着详细介绍了系统的软件设计，包括前端播控软件、接收模块的软件设计、USB驱动程序设计、文件接收机制等。

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In the aspects of software modularization, emphasize to analyze USB device firmware, driver program of computer operating system and interface program-three parts of programming method.

在针对软件的模块化方面，着重分析了USB外设端的固件、主机操作系统上的客户驱动程序以及操作界面程序三个部分程序编写方法。

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This paper focuses on the design of USB driver in WDM mode and Windows interface application program of video stream.

重点阐述了WDM模式的USB设备驱动程序与采集视频流的界面应用程序的设计。

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