随着数字电视的普及和推广,电视机将成为家庭多媒体的信息终端,是家庭获取各种信息的主要手段和方式。如何解决和保障数字电视信号入户的质量和安全,如何提高用户的服务质量,已是普及和推广数字电视的基础和重要前提,是运营商急待解决的课题。 With the popularization and popularization of digital television, the television set will become the home multimedia information terminal and the main means and method for families to obtain various kinds of information. How to solve and protect the quality and safety of digital TV signals at home and how to improve the service quality of users are the basic and important prerequisites for popularizing and popularizing digital television and are the urgent problems to be solved by operators.