On the right side of the diagram are the middleware applications and connectors to back-end services such as the Video on Demand (VOD) server, the Electronic Program Guide (EPG) provider, and so on.

在关系图的右侧是中间件应用程序以及到后端服务的连接器，此类后端服务包括视频点播(VOD)服务器、电子节目指南(EPG)提供程序等。

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This paper mainly deals with the application software of STB including the research of Graphics User Interface, program tune and search and the Electronic program Guide (EPG).

本文对机顶盒应用层软件的实现进行了研究，主要包括图形用户界面的实现、机顶盒节目搜索和电子节目指南的实现等。

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Support Electronic Program Guide(EPG) for 7 days;

支持电子节目指南（EPG）为 7 天；

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