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随着网络双向化改造进程的加快,双向互动业务越来越受到人们的重视,数字电视的发展方向(后平移时代)也必然是糅合了多种业务形态的以互动为主要特征的双向化时代。而在一个双向的广电网络中,我们如何为节目加密?何种加密方式才是更经济和更安全的?天柏公司作为国内数字电视广播系统的集成和终端产品供应商,在CCBN2007上展出的BiCAS双向条件接收系统将会解决这些疑问。
With the speeding up of the two-way transformation of the network, two-way interactive services are paid more and more attention. The development direction of digital television (the post-translation era) must also be an interactive two-way era characterized by interaction . How can we encrypt a program in a two-way broadcasting network? What kind of encryption is more economical and safer? As a supplier of integrated and terminal products for domestic digital TV broadcasting system, Tembec has exhibited at CCBN2007 BiCAS Bidirectional Conditional Access System will address these questions.