| Patents for G01S 3 - Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received (11,105) |
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| 09/18/1984 | US4472719 ECM Multiple-target retrodirective antenna |
| 09/11/1984 | US4471299 Circuit for digital phase difference measuring and synchronizing between pulse trains |
| 09/11/1984 | US4471222 Bifunctional optical sensing system |
| 09/04/1984 | US4469938 Solar tracking unit |
| 08/30/1984 | WO1984003360A1 Ferrite multiplexing and modulator assembly for beacon tracking system |
| 08/29/1984 | EP0116777A2 Acoustic direction finding systems |
| 08/28/1984 | US4467787 Static solar tracking mechanism |
| 08/14/1984 | US4466067 Multi-detector intensity interferometer and method for processing incoherent radiation signals |
| 08/08/1984 | EP0115151A2 Phase difference measurement receiver |
| 07/31/1984 | US4463357 Method and apparatus for calibrating the ionosphere and application to surveillance of geophysical events |
| 07/25/1984 | EP0114053A2 Device for determining the angle of incidence of optical radiation |
| 07/17/1984 | CA1171163A1 Detection system |
| 07/03/1984 | US4458147 Apparatus for evaluating optical signals |
| 06/27/1984 | EP0111503A1 Installation for automatically directing a solar energy concentration reflector. |
| 06/12/1984 | US4454583 Navigation system |
| 05/16/1984 | EP0108094A1 Radiogoniometric device. |
| 05/15/1984 | US4449210 Fiber optic hydrophone transducers |
| 05/15/1984 | US4449192 Radio wave angle of incidence measurement apparatus |
| 05/08/1984 | US4447779 Apparatus and method for determination of a receiving device relative to a transmitting device utilizing a curl-free magnetic vector potential field |
| 05/08/1984 | US4447718 Apparatus for collecting and concentrating solar light energy |
| 05/01/1984 | US4446363 Target for optically activated seekers and trackers |
| 05/01/1984 | CA1166744A1 Electro-magnetic radiation reflective concentrator |
| 04/25/1984 | EP0106178A1 Automatic tracking system for antenna |
| 04/24/1984 | US4445140 Electronic image stabilization system |
| 04/24/1984 | US4445030 Tracking arrangement for a solar energy collecting system |
| 04/18/1984 | EP0105867A2 Apparatus for defining the position of the cutting head of a boring or mining machine |
| 04/17/1984 | US4443801 Direction finding and frequency identification method and apparatus |
| 04/03/1984 | CA1164986A1 Locator for source of electromagnetic radiation having unknown structure or orientation |
| 03/27/1984 | US4439020 Sunrays focusing apparatus |
| 03/21/1984 | EP0103257A1 Method and apparatus to reduce static noise |
| 03/13/1984 | CA1163701A1 Remote object position and orientation locator |
| 02/22/1984 | EP0101055A1 Device for sensing moving light source |
| 02/21/1984 | US4433397 Circuit arrangement for the formation and processing of group signals |
| 02/14/1984 | US4432060 Earth center pointing phase locked horizon sensor electronic loop |
| 02/14/1984 | US4431995 Phased array signal processing |
| 02/07/1984 | US4429952 Tracking reflector assembly for a skylight |
| 01/24/1984 | USRE31509 Echo location systems |
| 01/24/1984 | US4427878 Optical scanning apparatus incorporating counter-rotation of elements about a common axis by a common driving source |
| 01/10/1984 | US4425635 Fish sonar |
| 01/10/1984 | US4425634 Detection system |
| 01/10/1984 | US4424943 Tracking system |
| 01/10/1984 | US4424801 Solar direction sensor |
| 01/05/1984 | WO1984000068A1 Installation for automatically directing a solar energy concentration reflector |
| 01/03/1984 | CA1159934A1 Cancellation of group delay error by dual speed of rotation |
| 01/03/1984 | CA1159933A1 Phase directional antenna array and phased ring combiner for radio direction finding |
| 12/27/1983 | US4423420 Cancellation of group delay error by dual speed of rotation |
| 12/20/1983 | US4422076 Passive synthetic aperture system for locating a source of electromagnetic radiation |
| 12/13/1983 | US4419981 Sun tracking apparatus |
| 12/13/1983 | CA1158760A1 Seismic streamer connector assembly |
| 11/30/1983 | EP0095414A2 Fresnel lens and its applications, particularly for a solar energy captivating apparatus |
| 11/10/1983 | WO1983003904A1 Radiogoniometric device |
| 11/09/1983 | EP0093234A1 Method of producing antenna tracking signals |
| 11/01/1983 | US4413332 Scanning beamformer for a very high resolution circular arc sonar |
| 10/25/1983 | US4411521 Optoelectric detection device especially for laser radiation |
| 10/18/1983 | US4410890 VHF Directional receiver |
| 10/11/1983 | US4409661 Aimpoint selection processor |
| 10/05/1983 | EP0089976A1 Apparatus for collecting solar energy |
| 10/04/1983 | US4408207 Angular error detecting device |
| 09/20/1983 | US4405940 Apparatus and method for preprocessing video frame signals |
| 09/20/1983 | CA1154139A1 Electro-acoustic device for the underwater signalling and identification of vessel |
| 09/13/1983 | US4404592 Video imagery device, especially for a homing unit |
| 09/13/1983 | US4404561 Radar system |
| 09/13/1983 | US4404465 Array positioning system |
| 09/06/1983 | CA1153451A1 Quasi-doppler direction finding equipment |
| 08/31/1983 | EP0087333A1 Vehicle heading reference system |
| 08/30/1983 | CA1153107A1 Adaptive steerable null antenna processor |
| 08/16/1983 | US4398821 Instrument for measuring angles |
| 08/09/1983 | US4397558 System for reducing the effects of background radiation |
| 08/09/1983 | US4397429 Device for detecting a hot point in a scene by means of infrared radiation and missile guidance system equipped with such a device |
| 08/09/1983 | CA1151763A1 Steerable null antenna processor with gain control |
| 07/26/1983 | US4395121 Apparatus for determining the angular position of a target illuminated by light pulses |
| 07/26/1983 | CA1150839A1 Method of measuring firing misses and firing missmeasuring installation for the performance of the method |
| 07/20/1983 | EP0014215B1 Direction finder combining directional antenna signals with a non-directional antenna signal |
| 07/12/1983 | US4393382 Direction finding and ranging system for locating scanning emitters |
| 07/06/1983 | EP0083219A2 Image stabilizing in TV systems |
| 07/05/1983 | CA1149492A1 Touch screen target designator |
| 06/29/1983 | EP0082604A1 Fibre optic hydrophone transducers |
| 06/22/1983 | EP0082045A1 Device for locating directive illuminators, applicable to panoramic detection of laser sources |
| 06/14/1983 | US4388646 Low-distortion detection of pulses superimposed on an unknown and variable background signal |
| 06/14/1983 | CA1148239A1 System for measuring current position and/or moving direction of vehicle |
| 06/07/1983 | US4387376 Phase linear interferometer system and method |
| 06/07/1983 | US4386848 Optical target tracking and designating system |
| 05/31/1983 | US4385833 Apparatus for reception and radiation of electromagnetic energy in predetermined fields of view |
| 05/25/1983 | EP0079684A2 An optical scanning apparatus |
| 05/24/1983 | CA1147040A1 Radar system |
| 05/18/1983 | EP0079175A1 Boolean filtering method and apparatus |
| 05/10/1983 | CA1146244A1 Satellite antenna orientation control method and detector configuration applying said method |
| 04/14/1983 | WO1983001298A1 A method and an apparatus for steering an aerodynamic body having a homing device |
| 04/14/1983 | WO1983001292A1 Apparatus for collecting solar energy |
| 04/12/1983 | US4380010 Phase directional antenna array and phased ring combiner for radio direction finding |
| 03/16/1983 | EP0074204A1 Determination of system response |
| 03/09/1983 | EP0073258A1 Angular error detecting device |
| 02/23/1983 | EP0025437B1 Radar system |
| 02/08/1983 | CA1141012A1 Method an dsystem for tracking and object radiating a circularly or linearly polarized electromagnetic signal |
| 02/01/1983 | US4371957 Antisubmarine warfare system |
| 01/19/1983 | EP0069891A1 Sun tracking apparatus |
| 01/11/1983 | US4368470 Radio direction finder |
| 01/11/1983 | US4368469 Traveling wave interferometry particularly for solar power satellites |
| 01/11/1983 | US4368456 Apparatus for correlating successive images of a scene |
| 01/05/1983 | EP0068940A1 Frequency reuse primary active antenna |