数字电视机顶盒EPG系统的设计与实现  

Design and implementation of EPG system for digital TV STB

作　　者：刘雪[1] 王保保[1] 

机构地区：[1]西安电子科技大学计算机学院,陕西西安710071

出　　处：《计算机工程与设计》2008年第19期5129-5131,共3页Computer Engineering and Design

摘　　要：作为数字电视机顶盒的重要交互式业务,电子节目指南的好坏对机顶盒的功能和性能有着重大的影响,故此设计了一种高效的数字电视EPG系统。该系统在PSI/SI信息接收过程中,采用了与传统方法不同的收表顺序,针对EIT表section较多的客观事实,提出了一种section拼接算法实现section随机且无丢失的快速接收和拼接。在存储过程中,采用树状链表结构实现PSI/SI同级别信息的联合存储,方便了PSI/SI信息的查询。该EPG系统实现了电视节目信息的快速直观展示。As an important interactive service, the electronic program guide produces a great effect on the function and performance of a STB. So a high efficiency EPG system for digital TV STB is expounded. During the receiving process of PSI/SI information, change the order of receiving EPG table, for the fact that there are multitudinous section in EIT table, a section splicing method is designed so that sections is gotten and spliced randomly, completely and quickly. During the storage process, the storage project which adopts dendriform chain structure store the relevant information in the same level. This storage project facilitate searching PS1/S1 information. The system realizes the quick and intuitionistic display of program information.

关 键 词：数字电视 机项盒 电子节目指南 节目专用信息 业务信息 

分 类 号：TP37[自动化与计算机技术—计算机系统结构]