基于DMB-TH的数字电视机顶盒EPG的设计与实现

The Design and Implementation of EPG for DMB-TH Digital TV STB

电子节目指南(EPG)功能强大与否已经成为数字电视机顶盒能否占领市场的关键.本文阐述了基于DMB-TH标准的数字电视机顶盒系统构成,提出了一个基于此的EPG系统的实现方案.以LGS-8913和STM5105为主要硬件平台,将整个系统分为3个功能模块:EPG信息的提取和解析、EPG信息的存储和OSD界面的显示.系统通过模块化的设计实现了EPG软件的显示功能并增强了数据操作的灵活性,起到了很好的效果.

Electronic program guide （EPG） is a key point for the digital TV set-top box （STB）. The structure of STB based on terrestrial digital mMultimedia TV/Handle broadcasting（DMB-TH） was analyzed in this paper. We proposed the design scheme of EPG based on this structure. The design was based on chip LGS-8913 and STMS105. Module ideology was used in the design of this scheme of EPG too. In this scheme,EPG information searching and parsing module,database module and On Screen Display （OSD） module were involved. The design implemented the display function and enhanced the facility of the data operation of the system.