发明名称 |
PERSONAL ALARM SYSTEM FOR LARGE GEOGRAPHIC AREAS |
摘要 |
A personal alarm system is provided that employs two different radio frequency subsystems to maximize the probability that the alarm message will reach its destination. The personal alarm sends its alarm message over a dedicated and unshared RF channel to minimize problems of RF interference and obstructed signal paths. The alarm message is then delivered to its destination over a separate spread spectrum, redundant and self healing communications network.
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申请公布号 |
US2010141428(A1) |
申请公布日期 |
2010.06.10 |
申请号 |
US20090626023 |
申请日期 |
2009.11.25 |
申请人 |
MILDENBERGER STEPHEN;MILLER PETER |
发明人 |
MILDENBERGER STEPHEN;MILLER PETER |
分类号 |
G08B1/08 |
主分类号 |
G08B1/08 |
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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