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发明名称
电子计费器智能IC卡税控装置
摘要
本实用新型是一个用于电子计费器的智能IC卡税控装置。通过串行口与电子计费器相连,得到电子计费器的每次交易数据,将其存储在智能IC卡中,利用智能IC卡作为数据存放和传递的媒介,从而实现税务部门对交易数据的准确统计,达到税控目的。本实用新型使用符合ISO7816标准的智能IC卡,卡的双向I/O线经驱动与单片机相连。单片机的根据ISO7816时序,向智能IC卡发出APDU命令,进行数据读出或改写操作。
申请公布号
CN2372730Y
申请公布日期
2000.04.05
申请号
CN99213678.4
申请日期
1999.06.09
申请人
北京天大天财智能卡系统有限公司;谢捷生
发明人
谢捷生;平庆忠;郑海东
分类号
G07G1/12;G06F17/60
主分类号
G07G1/12
代理机构
代理人
主权项
1.一种用于电子计费器的智能IC卡税控装置,该装置由一个单片机(U1)、两个智能IC卡(CARD和SIMCARD)和一个电子计费器接口(J1)组成,其特征在于单片机(U1)的P1.4和P1.5通过7407的两个门与外部智能IC卡(CARD)的I/O线相连;单片机(U1)的P3.4和P3.5通过7407的两个门与内部认证卡(SIMCARD)的I/O线相连;单片机通过这些线分别对两个IC卡进行读写。
地址
100038北京市海淀区羊坊店路6号平庆忠转
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