发明名称 WIRELESS WARNING SYSTEM AND METHOD OF USING THE SAME
摘要 A wireless warning system (100) includes a primary terminal (10) and a secondary terminal (20). The primary terminal includes a first alarm apparatus (11) and a first communicating apparatus (12). The secondary terminal includes a second alarm apparatus (21) and a second communicating apparatus (22). The first communicating apparatus and the second communicating apparatus contact with each other and respectively calculate a distance between the primary terminal and the secondary terminal. The first alarm apparatus and the second alarm apparatus alarm when the calculated distance being beyond a predetermined safe distance.
申请公布号 US2008291031(A1) 申请公布日期 2008.11.27
申请号 US20070926663 申请日期 2007.10.29
申请人 CHI MEI COMMUNICATION SYSTEMS, INC. 发明人 CHEN CHIN-YUAN;CHANG CHIH-WEI
分类号 G08B23/00 主分类号 G08B23/00
代理机构 代理人
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