The STB software structure is described with focus on the software of front-end control, program management and CA interface.
文章对机顶盒的软件结构进行了概述并重点介绍了前端控制软件、节目管理软件和有条件接收接口软件。
The source program is analysed by the front end compiler and the medial language of the abstract ins truetion is generated.
前端编译对源程序进行分析，生成抽象指令形式的中间语言；
The dissertation introduces design of each module's hardware circuit and software program adopted modularization thinking in Front-end and Detection Base.
在文中笔者运用模块化的设计思想完成了前端和检测台的硬件电路和软件程序的设计。
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