发明名称 Location-determining system for radio clients within local-area spaces
摘要 Systems, devices, features, and/or methods for determining a location of a mobile device are disclosed. A method may include (a) receiving, into a mobile device, a common RF signal on a common carrier frequency, wherein the common RF signal includes a respective RF signal output by each of three or more transmitters on a common time basis in a round-robin manner, and wherein each of the three or more transmitters is positioned at a known location, (b) capturing data representing the common RF signal, (c) based on the captured data, discriminating between each respective RF signal that forms the received common RF signal, (d) determining a relative phase shift of each respective RF signal, and (e) determining the location of the mobile device based on the determined relative phase shifts and the known locations of the three or more transmitters.
申请公布号 US8294617(B2) 申请公布日期 2012.10.23
申请号 US20100857808 申请日期 2010.08.17
申请人 RIEGER, III CHARLES J.;NAVTEQ B.V. 发明人 RIEGER, III CHARLES J.
分类号 G01S3/02 主分类号 G01S3/02
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