发明名称 System and method for locating an object using global positioning system receiver
摘要 A system and method for locating an object uses a plurality of tag signal readers that receive wireless tag signals from a tag transmitter coupled with an object to be located. The tag signals include data indicating the identity of the object to which the tag transmitter is coupled. Each tag signal reader includes a global positioning system receiver associated therewith for determining the location of a tag signal reader. A wireless transmitter transmits a wireless data signal incorporating the wireless tag signal and location of the tag signal reader to a location processor, which receives the wireless data signals and determines which tag signals are first-to-arrive signals and conducts differentiation of the first-to-arrive signals to locate a tag transmitter and object coupled therewith.
申请公布号 US6657586(B2) 申请公布日期 2003.12.02
申请号 US20020137746 申请日期 2002.05.02
申请人 WHERENET CORP 发明人 TURNER THOMAS E.
分类号 G01S5/00;G01S5/06;G01S19/11;(IPC1-7):H04B7/185 主分类号 G01S5/00
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