发明名称 |
Security system for portable electrical devices |
摘要 |
The invention relates to a security system for portable devices (1 to 3). The security system consists of at least one portable transmitter unit (5), at least one portable receiver unit (6) and a reaction unit (7). The transmitter unit (5) regularly transmits a signal which is regularly received by the receiver unit (6) within a range of the signal. If the receiver unit (6) does not receive a signal, the reaction unit (7) generates a warning signal and/or activates a blocking mode, which renders a portable device to be protected (1 to 3) unusable.
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申请公布号 |
US2003083044(A1) |
申请公布日期 |
2003.05.01 |
申请号 |
US20020277584 |
申请日期 |
2002.10.22 |
申请人 |
SCHREYER OLIVER;FALCK THOMAS;MAASS HENNING |
发明人 |
SCHREYER OLIVER;FALCK THOMAS;MAASS HENNING |
分类号 |
G08B13/22;G08B13/14;H04M1/21;H04Q7/38;(IPC1-7):H04M1/66;H04M1/68;H04M3/16 |
主分类号 |
G08B13/22 |
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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