发明名称 |
SYSTEMS AND METHODS FOR IP AND VOIP DEVICE LOCATION DETERMINATION |
摘要 |
A method and system for precise position determination of general Internet Protocol (IP) network-connected devices. A method enables use of remote intelligence located at strategic network points to distribute relevant assistance data to IP devices with embedded receivers. Assistance is tailored to provide physical timing, frequency and real time signal status data using general broadband communication protocols. Relevant assistance data enables several complementary forms of signal processing gain critical to acquire and measure weakened or distorted in-building Global Navigation Satellite Services (GNSS) signals and to ultimately extract corresponding pseudo-range time components. A method to assemble sets of GNSS measurements that are observed over long periods of time while using standard satellite navigation methods, and once compiled, convert using standard methods each pseudo-range into usable path distances used to calculate a precise geographic position to a known degree of accuracy. |
申请公布号 |
EP1889188(A4) |
申请公布日期 |
2011.12.21 |
申请号 |
EP20060770307 |
申请日期 |
2006.05.12 |
申请人 |
IPOSI, INC. |
发明人 |
LEE, RICHARD, M.;KEEGAN, RICHARD |
分类号 |
G01S19/13;H04M11/04;G01C21/00;G01S5/00;G01S19/06;G01S19/23;G01S19/25;G01S19/35;G01S19/49;H04L29/06;H04M7/00 |
主分类号 |
G01S19/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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