发明名称 Personal security and tracking system
摘要 Wireless communication system for location of a person and identification of a distress condition of the person comprising portable transceivers (20) carried by persons, each having an associated alarm switch (40), the transceiver activatable locally and/or via a remote network and the alarm switch operable locally to activate the transceiver.
申请公布号 WO9832105(A3) 申请公布日期 1998.10.01
申请号 WO1998US00896 申请日期 1998.01.20
申请人 HOFFMAN RESOURCES, LLC;HOFFMAN, MARK, S.;HOFFMAN, JUDD, A.;HOFFMAN, ANN;DOE, DAVID, G. 发明人 HOFFMAN, MARK, S.;HOFFMAN, JUDD, A.;HOFFMAN, ANN;DOE, DAVID, G.
分类号 G01S19/48;G08B21/02;G08B21/22 主分类号 G01S19/48
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