发明名称 Wireless warning system
摘要 A wireless warning system for alerting and advising selected uses of a potential or existing emergency within a predetermined geographic area. The system operates on the principle of a common or party-line pager communication link, where all users within the predetermined geographic area are alerted simultaneously of the emergency situation. When the system is activated a detectable alarm, in the form of an LED readout panel for portable pager receivers, or as an audio or visual alarm for fixed structures, alerts all users in the geographic area.
申请公布号 US6463273(B1) 申请公布日期 2002.10.08
申请号 US19990309528 申请日期 1999.05.11
申请人 DAY J. CAMERON 发明人 DAY J. CAMERON
分类号 G08B3/10;G08B21/00;H04M11/00;(IPC1-7):H04M11/00 主分类号 G08B3/10
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