Patents for G01S 13 - Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified (37,701) |
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01/15/1992 | EP0233273B1 Instrument landing system |
01/15/1992 | CN2093498U Power supply automatic control switch |
01/14/1992 | US5081459 Doppler radar for the detection and localizing of helicopters |
01/14/1992 | US5081458 Hyperfrequency system for remote data transmission |
01/14/1992 | US5081457 Apparatus for reducing synchronous fruit in tcas surveillance systems |
01/14/1992 | US5081456 Method of detecting unknown object and apparatus therefor |
01/14/1992 | US5081433 Two state phase modulator with minimum amplitude modulation |
01/14/1992 | US5081432 Variable bi-phase modulator circuits and variable resistors for microwave signals |
01/14/1992 | US5080390 Vehicle with plastic suspension |
01/14/1992 | CA2046401A1 Device for identifying a localizing transponders |
01/08/1992 | EP0464821A1 Method and means for avoiding collision between a motor vehicle and obstacles |
01/07/1992 | US5079735 High-dynamic-range compressive receiver |
01/07/1992 | US5079556 Coherent pulse radar system |
01/07/1992 | US5079555 Sequential image synthesizer |
01/04/1992 | CA2020327A1 Electronic chemical identification system |
01/03/1992 | WO1992000531A1 Monopulse processing systems |
01/02/1992 | EP0463665A1 Microwave vector modulator and device for matching a microwave load |
01/02/1992 | EP0463233A2 Activatable/deactivatable security tag for use with an electronic security system |
01/02/1992 | DE4020551A1 Machining tool checking system using microwave radar - with radar waves evaluated to check tool presence, tool type and tool size |
12/31/1991 | US5077673 Aircraft traffic alert and collision avoidance device |
12/31/1991 | US5077558 Airborne wind shear detection weather radar |
12/31/1991 | CA1293791C2 Radar system for headway control of a vehicle |
12/29/1991 | CA2044450A1 Microwave vector modulator and device for matching a microwave load |
12/28/1991 | WO1992000578A1 Activatable-deactivatable security tag for use with an electronic security system |
12/27/1991 | EP0462648A2 Method of and apparatus for obtaining vehicle heading information |
12/27/1991 | EP0386108A4 Downhole pulse radar |
12/24/1991 | US5075863 Distance measuring method and apparatus therefor |
12/24/1991 | US5075694 Airborne surveillance method and system |
12/24/1991 | US5075680 Method and apparatus for monitoring vehicular traffic |
12/24/1991 | US5075632 Automatic control using proximity sensors |
12/18/1991 | EP0386152A4 Millimeter wave imaging device |
12/17/1991 | US5073782 Contraband detection system |
12/17/1991 | US5073781 Transponder |
12/17/1991 | US5073780 Identifying targets with a radar system |
12/17/1991 | US5073779 System for transmitting aircraft transponder beacon information |
12/15/1991 | WO1991019997A1 Transponder system |
12/11/1991 | EP0461093A1 A method for improving the amplitude-frequency characteristic of a radar system |
12/10/1991 | US5072226 Radiometer system incorporating a cylindrical parabolic reflector and minimum redundancy array feed |
12/10/1991 | US5072224 Radar system |
12/10/1991 | US5072223 Radar system for measuring the nearest distance to an object |
12/10/1991 | US5072222 Electromagnetic identification and location system |
12/10/1991 | US5070730 Device for level gauging with microwaves |
12/05/1991 | DE4030365C1 Interferometric aperture synthesis system for radiometry - measures each illuminated resolution cell several times, with each individual image being stored and processed |
12/04/1991 | EP0459925A1 Volumetric movement detector for protection, in particular in motor cars |
12/04/1991 | EP0459886A1 Distance-to-runway measuring device for a flying object |
12/04/1991 | EP0458821A1 Transponder system. |
12/04/1991 | EP0396662A4 Adaptive waveform radar |
12/03/1991 | US5070337 Optimization method and an optimized filter for sidelobe suppression |
12/03/1991 | US5070336 Radar guidance system correcting hardware induced channel-to-channel phase errors |
12/03/1991 | US5070335 Pulse doppler radar systems for helicopter recognition |
12/03/1991 | US5070334 Method and device for assisting terrestrial vehicle traffic |
12/02/1991 | CA2043621A1 Flying object field distance measuring device |
12/02/1991 | CA2043559A1 Movement sensor for protection namely of automobiles |
11/28/1991 | WO1991018354A1 Electronic vehicle toll collection system and method |
11/27/1991 | EP0458669A1 Method for fast recognition of objects that may belong to a collection comprising a large number of objects with different caracteristics |
11/27/1991 | EP0457880A1 Airborne iff antenna with switchable multiple diagrams. |
11/27/1991 | EP0250453B1 Cascaded internal impedance dependent amplifier with accurate variable gain control |
11/26/1991 | US5068666 Radar |
11/26/1991 | US5068664 Method and device for recognizing a target |
11/26/1991 | US5068654 Collision avoidance system |
11/26/1991 | US5068597 Spectral estimation utilizing a minimum free energy method with recursive reflection coefficients |
11/26/1991 | CA1292573C Air traffic control training system |
11/21/1991 | EP0456709A1 Personalized passive identification device |
11/19/1991 | US5066956 Azimuth-stacked radar method and apparatus |
11/14/1991 | WO1991017457A1 Icing hazard detection for aircraft |
11/13/1991 | EP0456329A1 Primary flight display presenting resolution advisory information provided by a traffic alert and collision avoidance system |
11/13/1991 | EP0455842A1 Scatterometer |
11/13/1991 | EP0171433B1 Identification system and transponder therefor |
11/12/1991 | US5065160 Radar transponder |
11/12/1991 | US5064141 Combined sensor guidance system |
11/06/1991 | EP0455411A1 Correlation detector for FM signals |
11/05/1991 | US5063386 Device for the detection of the signals of transponders interrogated by a secondary radar in the presence of multiple-path phenomena |
10/31/1991 | DE4013037A1 Method of mobile traffic surveillance - using moving detector vehicle with radar which detects speed of vehicles being observed |
10/30/1991 | EP0172221B1 Terrain advisory system |
10/29/1991 | US5061941 Composite antenna for electronic article surveillance systems |
10/29/1991 | US5061934 Hybrid clutter cancellation method and system for improved radar performance |
10/29/1991 | US5061933 Short-range radar system |
10/29/1991 | US5061932 Road surface sensing system for a vehicle |
10/29/1991 | US5061931 Recursive system for image forming by means of a spotlight synthetic aperture radar |
10/29/1991 | CA1291557C Surface acoustic wave pipe identification system |
10/23/1991 | EP0248878B1 A method for measuring the distance and/or the relative velocity between two objects |
10/22/1991 | US5059968 Radar system and method of operating such system |
10/22/1991 | US5059967 Apparatus and method for displaying weather information |
10/22/1991 | US5059966 Synthetic aperture radar system |
10/22/1991 | CA1291251C Radio alimenter for use with proximity fuse and fuse using the same |
10/16/1991 | EP0452221A1 On-board velocimeter |
10/16/1991 | EP0451987A2 In-furnace slag level measuring method and apparatus therefor |
10/16/1991 | EP0451966A2 Method and apparatus for digital phased array imaging |
10/16/1991 | CN1055426A Distance measuring method and apparatus therefor |
10/16/1991 | CN1055392A In-furnace slag level measuring apparatus |
10/16/1991 | CN1055391A In-furnace slag level measuring method and apparatus therefor |
10/15/1991 | US5058024 Conflict detection and resolution between moving objects |
10/15/1991 | US5057846 Efficient operation of probing radar in absorbing media |
10/15/1991 | US5057845 Radar apparatus employing different kinds of pulses |
10/15/1991 | US5057843 Method for providing a polarization filter for processing synthetic aperture radar image data |
10/08/1991 | US5055850 Waveform generator |
10/08/1991 | US5055659 High speed system for reading and writing data from and into remote tags |
10/08/1991 | CA1290429C Closed loop velocity/altitude sensor for fm/cw doppler radars |
10/08/1991 | CA1290428C Traffic monitoring device |
10/04/1991 | CA2013858A1 Noise reduction in signal processing by sequency diversity |