发明名称 |
Method of using chip card memory units |
摘要 |
The method involves exchanging data between the card and a terminal of a first institution whereby identities are exchanged and the terminal additively loads usage or cash units into the card memory with its identifier and makes the units and identifiers available to a second institution, which can determine account status and validate the information to the first institution
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申请公布号 |
DE19745267(A1) |
申请公布日期 |
1999.04.22 |
申请号 |
DE19971045267 |
申请日期 |
1997.10.15 |
申请人 |
ANGEWANDTE DIGITAL ELEKTRONIK GMBH, 21521 DASSENDORF, DE |
发明人 |
KREFT, HANS-DIEDRICH, 21521 DASSENDORF, DE |
分类号 |
G07F7/08;G07F7/10;(IPC1-7):G07F7/08;G06K19/073 |
主分类号 |
G07F7/08 |
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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