【摘要】 根据南通市的实践,阐述了如何实现传输区域管理必需的信号差异。比较了分区域管理的实现方案,分析了各方案的特点和能达到的控制程度,以及智能卡分区域管理中对机顶盒提出的功能性要求。更多还原

【Abstract】 In this paper, based on the experience from the digital TV operator of Nantong, we discuss how to transmit the different signal needed by region control. The methods are compared and analyzed their effects. The demands on STB are also mentioned.更多还原