论文部分内容阅读
随着科技的发展以及人们对电视媒介越来越高的要求,有线电视网络正逐步向通信网络的方向发展,数字电视的接收系统技术也在随IPTV的发展而不断的发展。当前数字电视的接收系统主要是靠两大块来完成,一部分是网络运营商,另一部分是提供内容的双向通信网络业务的安全保障系统。在这两大模块稳定运行的前提下,又分支出若干接收系统网络,形成一个整体架构。基于这一特点,设计了可以实施双向任务的非对称加密算法的可下载接收系统。本文将针对这一系统的架构、流程、特点、成就、前景等方面进行详尽的阐述。
With the development of science and technology and the ever-increasing demands of the people on the television media, the cable television network is gradually developing towards the communication network. The reception technology of the digital television is also constantly evolving with the development of IPTV. At present, the receiving system of digital television is mainly implemented by two big blocks, one is the network operator, and the other is the security guarantee system of the two-way communication network service providing content. In these two modules under the premise of stable operation, but also a number of branches out of the receiving system network to form a whole structure. Based on this feature, a downloadable receiving system with asymmetric encryption algorithm that can implement bidirectional tasks is designed. This article will elaborate on the system architecture, processes, features, achievements, prospects and so on.