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Class Information
Number: 342/126
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Determining distance > Triangulation
Description: Subject matter including distance determination be radar derived procedures of finding the location of a third point by taking bearings from two fixed points a known distance apart from each other or the third point; or by determining the distance from a third point to two known points.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8704702 Method for estimating an object motion characteristic from a radar signal, a computer system and a computer program product Apr. 22, 2014
8682351 Method and apparatus for locating a WLAN station based on a propagation delay of a signal Mar. 25, 2014
8660815 Methods and apparatus for filtering noise in a three-dimensional position measurement system Feb. 25, 2014
8654002 Multistatic radar system for airport monitoring Feb. 18, 2014
8624774 Method and system of locating objects Jan. 7, 2014
8525725 Method and system for position and track determination Sep. 3, 2013
8416120 Method of sensor network localization through reconstruction of radiation pattern Apr. 9, 2013
8380218 Transponder subsystem for supporting location awareness in wireless networks Feb. 19, 2013
8355739 Method and apparatus for locating a WLAN station based on a propagation delay of a signal Jan. 15, 2013
8326320 Method and locating device for locating at least one mobile radio subscriber Dec. 4, 2012
8320934 Dynamic location almanac for wireless base stations Nov. 27, 2012
8232913 Multilateration system and method Jul. 31, 2012
8219111 Method for an improved linear least squares estimation of a mobile terminal's location under LOS and NLOS conditions and using map information Jul. 10, 2012
8164510 Quantity smoother Apr. 24, 2012
8159387 Multi-transmitter interferometry Apr. 17, 2012
8138967 Multilateration system and method Mar. 20, 2012
8138918 Intrusion detection and tracking system Mar. 20, 2012
8134493 System and method for precision geolocation utilizing multiple sensing modalities Mar. 13, 2012
8130136 System and method for target signature calculation and recognition Mar. 6, 2012
8116350 Ultrawideband asynchronous tracking system and method Feb. 14, 2012
8089392 Radar coordinate registration Jan. 3, 2012
8005486 Precise node localization in sensor ad-hoc networks Aug. 23, 2011
7996020 Locating a WLAN station using signal propagation delay Aug. 9, 2011
7952512 Mobile device enabled radar tags May. 31, 2011
7948431 Radiobased locating system provided with a synthetic aperture May. 24, 2011
7907579 WiFi geolocation from carrier-managed system geolocation of a dual mode device Mar. 15, 2011
7877101 Locating a WLAN station using signal propagation delay Jan. 25, 2011
7782247 System and method for target location Aug. 24, 2010
7764217 Surface RF emitter passive ranging accuracy confirmation algorithm Jul. 27, 2010
7764794 Location-based wireless messaging for wireless devices Jul. 27, 2010
7760132 Method and system of three-dimensional positional finding Jul. 20, 2010
7750841 Determining positional information Jul. 6, 2010
7742772 Determining relative elevation using GPS and ranging Jun. 22, 2010
7742773 Using GPS and ranging to determine relative elevation of an asset Jun. 22, 2010
7692572 Detecting and ranging apparatus and detecting and ranging program product Apr. 6, 2010
7679562 Target detection apparatus and system Mar. 16, 2010
7612708 RF system for tracking objects Nov. 3, 2009
7602329 Systems and methods of tracking and/or avoiding harm to certain devices or humans Oct. 13, 2009
7592944 System and method for intrusion detection using a time domain radar array Sep. 22, 2009
7590720 Systems and methods for locating geographical regions of mobile computer users Sep. 15, 2009
7580995 Systems and methods for locating mobile computer users in a wireless network Aug. 25, 2009
7573418 Tag communication apparatus, control method for tag communication apparatus, computer readable medium for tag communication control and tag communication control system Aug. 11, 2009
7573419 Method and system for unambiguous angle resolution of a sparse wide-band antenna array Aug. 11, 2009
7558851 Locating a mobile computing unit Jul. 7, 2009
7548731 Method to reduce power consumption of static wireless beacons and cost of infrastructure Jun. 16, 2009
7545312 Target detection device and its detection method Jun. 9, 2009
7545311 Method and system for predicting air-to-surface target missile Jun. 9, 2009
7541968 System and method for detecting an intruder using impulse radio technology Jun. 2, 2009
7538716 System and method for location determination using time differences May. 26, 2009
7515090 High-frequency position/path sensor for detecting the approach of an object and method for detecting the approach of an object Apr. 7, 2009

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