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Class Information
Number: 342/442
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Beacon or receiver > Direction-finding receiver only > Having a phase detector
Description: Subject matter wherein the received signals are coupled to a phase detector to provide resultant bearing signal.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8711037 Precision geolocation of moving or fixed transmitters using multiple observers Apr. 29, 2014
8581782 Simultaneous radio detection and bearing system Nov. 12, 2013
8581781 Interferometric methods and systems Nov. 12, 2013
8576121 Method for lateral localization of the wheels of a vehicle Nov. 5, 2013
8566022 Managing use of location-identification services Oct. 22, 2013
8508411 Method and system for positioning mobile units based on angle measurements Aug. 13, 2013
8456362 Receiving apparatus, radio communication system, position estimation method and program Jun. 4, 2013
8446254 Methods and apparatuses for RFID tag range determination May. 21, 2013
8436765 Communication processing device and distance measurement method in communication processing device May. 7, 2013
8421676 Method and system for determining the location of an electronic device using multi-tone frequency signals Apr. 16, 2013
8362956 Electrically small, source direction resolving antennas Jan. 29, 2013
8363703 System and method for phase detection Jan. 29, 2013
8354961 Direction finding system and direction finding apparatus Jan. 15, 2013
8334808 Direction finding antenna system and method Dec. 18, 2012
8260324 Establishing wireless links via orientation Sep. 4, 2012
8253626 Multiple phase state near-field electromagnetic system and method for communication and location Aug. 28, 2012
8208963 Communication method and system Jun. 26, 2012
8188919 Globally-convergent geo-location algorithm May. 29, 2012
8155668 Radio communication apparatus, position measurement method for radio communication apparatus, and radio communication system Apr. 10, 2012
8111192 Beam former using phase difference enhancement Feb. 7, 2012
8077089 Precision geolocation of moving or fixed transmitters using multiple observers Dec. 13, 2011
8077088 Method for single satellite geolocation of emitters using an ambiguous interferometer array Dec. 13, 2011
8077091 System and method for determining a position of a mobile device within a surveillance volume in the presence of multipath interference Dec. 13, 2011
8050719 Radio communication system, mobile terminal unit thereof, and azimuth determining method Nov. 1, 2011
8040280 Apparatus and method for computing location of a moving beacon using received signal strength and multi-frequencies Oct. 18, 2011
8027409 Noise prediction-based signal detection and cross-talk mitigation Sep. 27, 2011
8022873 Methods and system for determining angles of sight between two devices Sep. 20, 2011
8014791 Method and system for determining position of a wireless electronic device within a volume Sep. 6, 2011
7978137 Performance and power management in direction of arrival determination by utilizing sensor information Jul. 12, 2011
7961147 Long baseline phase interferometer ambiguity resolution using frequency differences Jun. 14, 2011
7952524 Method and system for positioning mobile units based on angle measurements May. 31, 2011
7932860 Determining a position of a tag Apr. 26, 2011
7924221 Method and apparatus for monitoring the integrity of satellite navigation signals Apr. 12, 2011
7903029 Wireless location routing applications and architecture therefor Mar. 8, 2011
7898479 System and method for signal extraction and angle of arrival determination Mar. 1, 2011
7825858 Methods and systems for frequency independent bearing detection Nov. 2, 2010
7821458 Apparatus and method for locating a terminal in a broadband wireless communication system Oct. 26, 2010
7777676 Method of lightning location using time difference of arrival technology with auto correlation Aug. 17, 2010
7705781 Histogram for ambiguity visualization and evaluation (HAVE) Apr. 27, 2010
7692586 Sparse interferometric array for radio frequency azimuth direction finding Apr. 6, 2010
7688264 Method and apparatus for passive single platform geo-location Mar. 30, 2010
7663547 Determining a geolocation solution of an emitter on earth based on weighted least-squares estimation Feb. 16, 2010
7630738 Radio communication system, mobile terminal unit thereof, and azimuth determining method Dec. 8, 2009
7619563 Beam former using phase difference enhancement Nov. 17, 2009
7613254 Phase detector for comparing phases of data and a plurality of clocks Nov. 3, 2009
7598911 Method and system for positioning mobile units based on angle measurements Oct. 6, 2009
7587174 Antenna unit and radio base station therewith Sep. 8, 2009
7579988 Method, device and system for determining direction of arrival of signal Aug. 25, 2009
7548203 Performance and power management in direction of arrival determination by utilizing sensor information Jun. 16, 2009
7545325 Method of signal processing Jun. 9, 2009

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