Location of wireless nodes using signal strength weighting metric

PF Dietrich, GS Davi, RJ Friday - US Patent 7,116,988, 2006 - Google Patents
5,327,144. A* 7/1994 Stilp et al................... 342,387 5,394,158 A 2, 1995 Chia..........................
342/457 5,396,582 A 3, 1995 Kahkoska 5,564,079 A 10, 1996 Olsson 5,570.412 A 10, 1996 …

Wireless node location mechanism featuring definition of search region to optimize location computation

PF Dietrich, GS Davi, RJ Friday - US Patent 7,433,696, 2008 - Google Patents
(57) ABSTRACT A Wireless node location mechanism that de? nes a search region to
optimize the computations associated With estimat ing the location of a given Wireless node …

Wireless node location mechanism using antenna pattern diversity to enhance accuracy of location estimates

RJ Friday, PF Dietrich - US Patent 7,260,408, 2007 - Google Patents
6,140,964 6,167,274 6,198,935 6,212,391 6,226,400 6,236,365 6,243,811 6,249,252
6,269,246 6,272,541 6,275,190 6,282,427 6,304,218 6,317,599 6,317,604 6,414,634 …

Wireless node location mechanism responsive to observed propagation characteristics of wireless network infrastructure signals

GS Davi, PF Dietrich, AH Hills - US Patent 7,205,938, 2007 - Google Patents
Int. Cl. G01S 3/02(2006.01)(52) us. Cl........................................ 342/451-342/458 A Wireless
node location mechanism that dynamically (58) Field of Classi? cation Search 3 None …

Location estimation of wireless terminals through pattern matching of deduced and empirical signal-strength measurements

DS Spain Jr, RL Martin, TK Bhattacharya - US Patent 7,116,987, 2006 - Google Patents
(57) ABSTRACT A method of estimating the location of a wireless terminal is disclosed. The
illustrative embodiment of the present inven tion is based on the observation that the signal …

Location determination and location tracking in wireless networks

M Tao, KN Lau - US Patent 7,359,718, 2008 - Google Patents
It is sometimes desirable to locate the position of a station operable within a wireless, eg,
radio frequency (RF), network. For example, the United States Federal Commu nications …

Location estimation of wireless terminals through pattern matching of signal-strength differentials

DS Spain - US Patent 7,460,505, 2008 - Google Patents
(57) ABSTRACT A method of estimating the location of a wireless terminal is disclosed that
is ideally Suited for use with legacy systems. The illustrative embodiment of the present …

Method and apparatus for determining the location of a node in a wireless system

F Niu, J Huang, S Kyperountas - US Patent 7,317,925, 2008 - Google Patents
(57) ABSTRACT A location technique is utilized within a wireless commu nication system
where power measurements from various nodes are weighted to determine a node's …

System for automatically determining cell transmitter parameters to facilitate the location of wireless devices

RJ Anderson - US Patent 7,797,000, 2010 - Google Patents
BACKGROUND Several techniques for locating wireless devices involve the Mobile Station
(MS) making measurements of the signals transmitted by the base stations of a wireless …

Simultaneous localization and RF modeling

KK Chintalapudi, VN Padmanabhan, AP Iyer - US Patent 8,077,090, 2011 - Google Patents
The simultaneous localization and RF modeling technique pertains to a method of providing
simultaneous localization and radio frequency (RF) modeling. In one embodiment, the …