发明名称 |
Identification system for confirming authorization for access to an object or the use of an object, in particular of a motor vehicle |
摘要 |
An identification system in which a trigger signal, emitted on an object side and received by a portable code generator, is provided. The trigger signal is used on the object side to phase code a reference signal. The code generator encodes a response signal using the trigger signal in a phase-coded manner and retransmits the response signal. The received response signal is compared with the generated reference signal in an object-side evaluation unit using an autocorrelation function. If the value of the autocorrelation function is larger than a threshold value, an enabling signal is generated.
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申请公布号 |
US6873248(B2) |
申请公布日期 |
2005.03.29 |
申请号 |
US20020270955 |
申请日期 |
2002.10.15 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
OTT ALBERT |
分类号 |
B60R25/10;B60R25/00;B60R25/24;E05B49/00;G07C9/00;(IPC1-7):G05B19/00;G06F7/00;G08B29/00;H04B1/00 |
主分类号 |
B60R25/10 |
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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