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介绍了智能卡的有关情况,并就智能卡在收费电视系统中的硬件和软件设计进行了研究,给出了相关的电路结构和主要的程序流程图。
Introduced the relevant situation of the smart card, and studied the hardware and software design of the smart card in the pay TV system, gave the related circuit structure and the main program flow chart.