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随着数字电视飞速发展,承载着数字电视运营商收益的限制条件接收系统也取得了巨大成功,笔者介绍了限制条件接收系统的各功能模块,并讨论了各模块的应用功能。最后论述了限制条件接收模块的工作原理。
With the rapid development of digital television, the receiving system of limited conditions that carries the benefits of digital TV operators has also achieved great success. The author introduces the various functional modules of the conditional access system and discusses the application functions of each module. Finally, it discusses the working principle of the conditional access module.