Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 342/417
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Beacon or receiver > Direction-finding receiver only
Description: Subject matter including a receiver station which is capable of determining the time of travel or bearing of the received signals with respect to the station.

Sub-classes under this class:

Class Number Class Name Patents
342/418 Doppler 98
342/448 Having a coil or loop type antenna 46
342/443 Having a direction indicator 63
342/441 Having a goniometer 17
342/449 Having a moving antenna 28
342/442 Having a phase detector 235
342/447 Having a spiral antennas 9
342/445 Having more than two antennas 95
342/444 Having plural receivers 81
342/419 Portable 77
342/428 With continuously movable antenna pattern 15
342/420 With error or deviatioan compensator or eliminator 45
342/432 With plural fixed antenna pattern comparing 81
342/422 With self-orienting antenna pattern 51

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8674879 Antenna arrangement for DOA estimation Mar. 18, 2014
8599071 Adaptive antenna radio communication device Dec. 3, 2013
8587467 Method and apparatus for determining locations of a moving radar Nov. 19, 2013
8576121 Method for lateral localization of the wheels of a vehicle Nov. 5, 2013
8559883 Wireless device and signal path configuration method thereof Oct. 15, 2013
8405550 Near-vertical direction finding and geolocation system Mar. 26, 2013
8405549 Direction finding method and device Mar. 26, 2013
8405551 Location estimation system, method and program Mar. 26, 2013
8390514 Detection and geolocation of transient signals received by multi-beamforming antenna Mar. 5, 2013
8378922 System and method for position or range estimation, tracking and selective interrogation and communication Feb. 19, 2013
8340588 Handheld synthetic antenna array Dec. 25, 2012
8305265 Radio-based direction-finding navigation system using small antenna Nov. 6, 2012
8301326 System and method for autonomous vehicle control Oct. 30, 2012
8264406 Manifold calibration for a communication system Sep. 11, 2012
8264408 User-executable antenna array calibration Sep. 11, 2012
8260324 Establishing wireless links via orientation Sep. 4, 2012
8248304 Method for measuring incoming angles of coherent sources using space smoothing on any sensor network Aug. 21, 2012
8217836 Tactical relative navigation using orientation transfer and ranging Jul. 10, 2012
8203485 Method of estimating direction of arrival and apparatus thereof Jun. 19, 2012
8199053 Three dimensional RF search system Jun. 12, 2012
8179319 Adaptive optimization of estimation of the angle of arrival of a signal received by an array of antenna elements May. 15, 2012
8144057 Methods and apparatus for adaptively determining angles of arrival of signals Mar. 27, 2012
8138974 Location estimation system, method and program Mar. 20, 2012
8130147 Signal wave arrival angle measuring device Mar. 6, 2012
8125388 Method for calibrating an AOA location system for all frequencies in a frequency hopping signal Feb. 28, 2012
8098155 System and method for locating a target wireless device Jan. 17, 2012
8081106 Target ranging using information from two objects Dec. 20, 2011
8063771 Marine personal locator apparatus Nov. 22, 2011
8035562 Digital beam-forming apparatus and technique for a multi-beam global positioning system (GPS) receiver Oct. 11, 2011
8004463 Systems and methods for determining direction-of-arrival Aug. 23, 2011
7990314 Method and system for locating a geographical position using broadcast frequency modulation signals Aug. 2, 2011
7982670 Method and system for estimating directions-of-arrival in low power or low sample size scenarios Jul. 19, 2011
7973715 Determining a direction of arrival of signals incident to a tripole sensor Jul. 5, 2011
7969360 High resolution, arbitrary-even-order direction finding method and device Jun. 28, 2011
7948438 Determining the angle of arrival of a target signal received by an array of antenna elements May. 24, 2011
7940215 Adaptive antenna radio communication device May. 10, 2011
7912449 Method and system for 60 GHz location determination and coordination of WLAN/WPAN/GPS multimode devices Mar. 22, 2011
7876264 Method of source number estimation and its application in method of direction of arrival estimation Jan. 25, 2011
7848748 Method for characterising emitters by the association of parameters related to the same radio emitter Dec. 7, 2010
7847733 Direction-of-arrival estimating device and program Dec. 7, 2010
7822141 Multiple input, multiple output communications systems Oct. 26, 2010
7804449 Method for angle of arrival determination on frequency hopping air interfaces Sep. 28, 2010
7791537 Radio monitoring apparatus and method Sep. 7, 2010
7787989 Method for controlling an autonomous mobile robot and related device Aug. 31, 2010
7764217 Surface RF emitter passive ranging accuracy confirmation algorithm Jul. 27, 2010
7750849 Method and arrangement for determining the spatial frequency of a signal Jul. 6, 2010
7724680 Method and technique for the processing and intelligent display of wideband direction-finding data May. 25, 2010
7724693 Network dependent signal processing May. 25, 2010
7720644 Method and apparatus of spectral estimation May. 18, 2010
7705780 Electronic support measures (ESM) tracking system and method Apr. 27, 2010

1 2 3 4 5

  Recently Added Patents
Encoding method and encoding device, decoding method and decoding device and transcoding method and transcoder for multi-object audio signals
Media identification system with fingerprint database balanced according to search loads
Lock monitoring
Apparatus and method for categorizing services using canonical service descriptions
Headset, terminal, and method capable of switching headset mode
Solid state lighting devices and associated methods of manufacturing
Method and system for automatically hiding irrelevant parts of hierarchical structures in computer user interfaces
  Randomly Featured Patents
Adjustable striker assembly with anti-theft protection
Gantry with a laser mounted numerically controlled carriage
Heating unit and its malfunction determining method, image fixing device, and image forming apparatus
Support stake
Magnetic switch
Programming methods and memories
Laminated package
Cooling axial flow fan with reduced noise levels caused by swept laminar and/or asymmetrically staggered blades
Exhaust system combustor
Semiconductor device and method for manufacturing same