| 发明名称 |
Safety device for data carrier |
| 摘要 |
<p>The security device (3) is configured to exchange data stored in an optical data carrier (1) bidirectionally and securely by a read/write device. An independent claim is also included for data carrier protection method.</p> |
| 申请公布号 |
EP1562195(A2) |
申请公布日期 |
2005.08.10 |
| 申请号 |
EP20050001163 |
申请日期 |
2005.01.21 |
| 申请人 |
KBA-METRONIC AG |
发明人 |
SCHMITT, PETER, DIPL.-PHYS. |
| 分类号 |
H04N5/91;G11B7/24;G11B20/00;G11B20/10;G11B23/00;G11B23/28;G11B23/30;H04L9/00;(IPC1-7):G11B23/28 |
主分类号 |
H04N5/91 |
| 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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