发明名称 |
Method for tamper-proofing magnetic stripe card reader |
摘要 |
A method for inhibiting tampering with data on a magnetic stripe card is disclosed. The data are erased if the card is prematurely withdrawn from the reader/writer. A write protect bit is set and recorded on the card if the power source is interrupted. Apparatus for activating the tamper-proofing techniques are disclosed.
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申请公布号 |
US4322613(A) |
申请公布日期 |
1982.03.30 |
申请号 |
US19800138389 |
申请日期 |
1980.04.08 |
申请人 |
VENDACOPY, INC. |
发明人 |
OLDENKAMP, RALPH J. |
分类号 |
G06K7/08;G07F7/08;(IPC1-7):G06K7/08;G06K13/00;G11B5/00;G06K5/00 |
主分类号 |
G06K7/08 |
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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