数字电视接收机用户接口界面软件的设计和实现

The Design And Implementation of USIF Software for Digital Television Receiver

本文主要论述了数字电视机顶盒软件中用户接口界面模块的设计和实现。本模块结构设计的最大特点是引入了面向对象和封装的概念,通过自定义五个基本元素类和一个基本单元类,组合实现用户接口界面。基于这种设计的用户接口界面程序可以完成所需的图形显示和机顶盒系统设置、频道选择等功能,而且程序的结构层次鲜明、简单易懂,有利于日后的移植和升级扩展工作。

In this paper, the design and implementation of USIF in DTV STB software are presented. The most prominent characteristic of the structure design of this module is the introduction of concepts of object-oriented and encapsulation. Through designing and combining five basic element classes and a basic unit class, the required USIF are realized. The USIF software based on this idea can implement the needed graphic display and functions. It has a clear structure and is easy to understand, transplant and update.