一种CLF芯片与SIM卡芯片连接的方法  

A Novel Method to Connect CLF Chip and SIM Chip

作　　者：王琪[1] 王东辉[2] 李云岗[2] 

机构地区：[1]中国科学院研究生院,北京100049 [2]中国科学院声学研究所数字系统集成实验室,北京100190

出　　处：《微计算机应用》2010年第4期73-76,共4页Microcomputer Applications

摘　　要：在NFC技术中,CLF芯片与SIM卡的连接是一个重要问题,本文提出了一种具有自主知识产权的CLF与SIM卡的通信方法,采用新的调制解调方式,使得S2信号在S1信号高低电平时都能传输,实现单线连接NFC与SIM卡,以及它们之间的全双工通信。通过对该方法进行电路级的设计和仿真,验证了该方法的正确性和稳定性。In the NFC technology,the connection between the CLF chip an SIM card is and important question. This paper proposed a new method to solve it. We introduce a new way to modulate and demodulate the signals, as a result, the signocl $2 can communicat whenever the voltage level of signecl S1 is high or low. It realizes the full - duplex communication between NFC anel SVU card. through single wire. We implemented the circuit of it, the simulation results shao this method is validity and stability.

关 键 词：NFC ( Near Field Communication ) SIM ( subscriber IDENTITY Module) SWP( single wire protocol) CLF ( Contact-Less FRONT - end) 

分 类 号：TN92[电子电信—通信与信息系统]