发明名称 |
Vehicle security system |
摘要 |
The system has an access control part (4) and an authentication element (2) which includes a communication channel (6) for exchanging a signal (2) that is modulated based on frequency shift keying. At least two receivers (8a,8b) separately receive the two frequencies (fma, fmb) representing the frequency shift keying. The receivers may have mirror-symmetric center frequencies. |
申请公布号 |
EP1304660(A3) |
申请公布日期 |
2005.04.13 |
申请号 |
EP20020018832 |
申请日期 |
2002.08.23 |
申请人 |
DAIMLERCHRYSLER AG |
发明人 |
HUELS, HELMUT;REINHARDT, MATTHIAS |
分类号 |
B60R25/24;G06K7/00;G06K19/07;G07C9/00;H04L1/04;(IPC1-7):G07C9/00;B60R25/00 |
主分类号 |
B60R25/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|