摘要
目前,有线电视全面由模拟电视向数字电视进行整体转换,本文主要介绍有线电视中的数字电视相关技术。对机房节目的来源,节目源经过的相关编辑、复用、加扰、调制等过程后输入到网络中的全部过程都进行了详细的描述。随着有线电视技术及网络的发展变化,一些新的业务应运而生。总之,通过本文的讲解读者可以深入地了解有线电视相关技术及有线电视可以为人们提供哪些服务。
At present the cable TV is on the comprehensive shift from analog TV to digital TV.This paper is focused on the related technology of digital TV in cable TV.It gives a detailed description of the origin of programmes,the process of edition,repeating,scrambling,adaptation,and the input into the net.With the development of cable TV technology and the net,some new businesses have been produced.In all,the readers can get a thorough understanding of the related cable TV technology and the services provided by the cable TV.
出处
《吉林省教育学院学报》
2011年第7期153-154,共2页
Journal of Jilin Provincial Institute of Education
关键词
数字电视
机顶盒
条件接收
digital TV
set top box
conditional access
