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Class Information
Number: 342/465
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Position indicating (e.g., triangulation) > Having plural transmitters or receivers > Plural receivers only
Description: Subject matter including more than one receiver.

Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8669902 Location estimation for wireless devices Mar. 11, 2014
8630674 Method of driving a mobile communication terminal Jan. 14, 2014
8626548 Access point triangulation for task assignment of warehouse employees Jan. 7, 2014
8588814 Client in mobile device for sending and receiving navigational coordinates and notifications Nov. 19, 2013
8576123 Method and system for vessel authentication and location validation Nov. 5, 2013
8570150 Sensing system and method with integral sensor locating capability Oct. 29, 2013
8548177 Methods and systems for source tracking Oct. 1, 2013
8525725 Method and system for position and track determination Sep. 3, 2013
8508411 Method and system for positioning mobile units based on angle measurements Aug. 13, 2013
8489039 Beamformed multi-input multiple-output communication with uplink transmission rotation Jul. 16, 2013
8456362 Receiving apparatus, radio communication system, position estimation method and program Jun. 4, 2013
8456281 Non-contact IC medium communication device Jun. 4, 2013
8446321 Deployable intelligence and tracking system for homeland security and search and rescue May. 21, 2013
8432253 Zone determination by combining signal strength with topological factors Apr. 30, 2013
8428878 Lightning strike simulation apparatus, method thereof, and program Apr. 23, 2013
8412457 Method and apparatus for setting destination in navigation terminal Apr. 2, 2013
8384595 Position estimation through iterative inclusion of measurement data Feb. 26, 2013
8314736 Determining the position of a mobile device using the characteristics of received signals and a reference database Nov. 20, 2012
8315632 Adaptive enhanced cell identity positioning Nov. 20, 2012
8294616 Using antennas separated in flight direction to avoid effect of emitter clock drift in geolocation Oct. 23, 2012
8274432 Method and system for detecting signal sources in a surveillance space Sep. 25, 2012
8264409 Electromagnetic radiation source locating system Sep. 11, 2012
8253627 Position determination with NRSC-5 digital radio signals Aug. 28, 2012
8249808 Method and apparatus for setting destination in navigation terminal Aug. 21, 2012
8232913 Multilateration system and method Jul. 31, 2012
8229091 Interactive voice response to short message service text messenger Jul. 24, 2012
8208942 Extended clustering for improved positioning Jun. 26, 2012
8193987 Apparatus and method for determining signal quality in a geolocation system Jun. 5, 2012
8193984 Calibration of a location system Jun. 5, 2012
8174448 Multilateration apparatus May. 8, 2012
8149168 Position determination using wireless local area network signals and television signals Apr. 3, 2012
8138975 Interference detection, characterization and location in a wireless communications or broadcast system Mar. 20, 2012
8138967 Multilateration system and method Mar. 20, 2012
8098200 Method and system for locating signal emitters using residual values Jan. 17, 2012
8095161 System and method for determining a transmit timing for communication in a radio communication system Jan. 10, 2012
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
8077659 Method and apparatus for locating mobile multimedia multicast system capable wireless devices Dec. 13, 2011
8059108 Determining the location of a stylus for a portable electronic device Nov. 15, 2011
8049668 Method and system for locating signal emitters using iterative residual weighting Nov. 1, 2011
8044859 Reference beacon methods and apparatus for TDOA/FDOA geolocation Oct. 25, 2011
8041304 Area estimation system, area estimation method and area estimation apparatus Oct. 18, 2011
8019352 System, method, and apparatus for determining and using the position of wireless devices or infrastructure for wireless network enhancements Sep. 13, 2011
8014791 Method and system for determining position of a wireless electronic device within a volume Sep. 6, 2011
8009100 Radio frequency emitter detection and location method and system Aug. 30, 2011
7999741 Systems and methods for facilitating a first response mission at an incident scene using precision location Aug. 16, 2011
7995988 System and method for identifying the position of mobile terminals Aug. 9, 2011
7957902 Method and system for determining cloud-to-ground lightning information Jun. 7, 2011
7952363 System and method for sorting detection of signal egress from a wired communication system May. 31, 2011
7952523 Method and apparatus for passively locating radar emissions from rotating transmitters May. 31, 2011
7952524 Method and system for positioning mobile units based on angle measurements May. 31, 2011

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