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有条件接收是电视业向高层发展的必经之路 处于世纪之交的我国广播电视网络(天上,地面,有线)正面对着数字化、网络化、综合信息交互化的机遇和挑战,正处于从模拟转向数字、单向广播朝双向互动转变,基本业务向扩展、增值服务拓展的阶段。数字化可大容量高速传输信息;网络化可达到信息资源全民共享;信息化可开展增值、扩展、个性化服务,其中有条件接收(Conditional Access-CA)则是达到这个目标的技术基础,也是我国广播电视业向高层次发展的一条必经之路。 如果说在过去还可以靠基本收视费、广告费来支撑广电事业的发展,那么如今正如张海涛副总局长在
Conditional access is the only way for the TV industry to develop at a high level At the turn of the century, China’s radio and television networks (heaven, earth, and cable networks) are facing the opportunities and challenges of digitalization, networking and integrated information exchange. Analog to digital, one-way broadcast toward two-way interaction, basic business expansion, value-added services to expand the stage. Digitalization can transfer large-capacity and high-speed information; network can achieve the sharing of information resources; information can carry out value-added, expansion, personalized service, conditional access (Conditional Access-CA) is the technology base to achieve this goal, Radio and television industry to a high-level development of the only way. If in the past can also rely on the basic viewing fees, advertising costs to support the development of radio and television business, so now as Deputy Director Zhang Haitao at