摘要： 随着数字电视的发展，市场上急需一种具有交互功能的机顶盒。但由于目前三网合一的标准尚未确定，网络数据和数字电视的压缩数据流还不能在同一条线路中传输。为解决此问题，该文给出了一个双模块设计的网络交互式机顶盒，详细阐述了其硬件和软件设计方案。

关键词: 机顶盒, DVB, 嵌入式系统

Abstract: The interactive set top box (STB) is in a great need for the current market with the development of digital HDTV. But now it is not popular that the network data stream and compressed MPEG2 data stream are transported in the same cable for some reasons of the standard. To solve this problem, this paper introduces an interactive two-module STB with network access, including the design of the hardware and software, which makes it available that the two data streams are received from the different module.

中图分类号: 

• TP393.2