发明名称 |
Reading data from a smart card |
摘要 |
A method of reading use-variable data from a smart card (1) includes selected data in the answer-to-reset signal sent from the card in response to a reset signal sent from a card reader (4). In this way a reader can be employed with inexpensive components and limited processing power since full implementation of a communication protocol is not required. An inexpensive key-fob (3) is provided for reading the value balance (7) of an electronic purse card, for example.
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申请公布号 |
US6237848(B1) |
申请公布日期 |
2001.05.29 |
申请号 |
US19940343540 |
申请日期 |
1994.11.29 |
申请人 |
MONDEX INTERNATIONAL LIMITED |
发明人 |
EVERETT DAVID |
分类号 |
G06K7/00;G06K7/06;G06K17/00;G06K19/067;G06K19/07;G06Q40/00;G07F7/08;G07F7/10;(IPC1-7):G06K5/00;G06K19/06 |
主分类号 |
G06K7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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