摘要
提出了一种针对DVB图文的终端软件解决方案,介绍了该方案基于UML技术的建模设计过程,分析了解码,存储,导航等关键功能,提出了操作系统抽象和回调处理页面显示的思想,解决了组件的兼容性和可移植性问题,最终完成了一个可被广泛集成的通用图文处理组件。
A software solution for processing DVB teletext in terminal unit is given, and the modeling and designing process based on UML technology are introduced. Then, the key features such as page decoding, caching and navigating are analyzed. Meanwhile, the OS abstraction and page rendering call back mechanism are applied in order to satisfy the requirements of com- patibility and portability. Finally, a universal teletext processing component is completed.
出处
《电视技术》
北大核心
2009年第4期30-32,35,共4页
Video Engineering
