| 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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| 07/01/1980 | US4210023 Method and apparatus for measuring slag foaming using microwave lever meter |
| 07/01/1980 | CA1080833A1 Frequency spectrum analyzer |
| 06/25/1980 | EP0012735A1 A method and apparatus for target tracking |
| 06/25/1980 | EP0012282A1 Device for measuring and registering the position, the attitude and/or the variation in position or attitude of a rigid body in space |
| 06/24/1980 | US4209785 Correlation arrangements |
| 06/24/1980 | US4209783 Object identification system |
| 06/24/1980 | CA1080333A1 Underground pipe detector |
| 06/24/1980 | CA1080332A1 Device for reducing the risk of transmission errors in an information-transmitting system |
| 06/24/1980 | CA1080331A1 Device for reducing the risk of transmission errors in an information-transmitting system |
| 06/17/1980 | US4208659 System for use in an aircraft for obstacle detection |
| 06/17/1980 | US4208658 Radar-operated vehicle safety assurance system |
| 06/17/1980 | US4208632 Radar receiver |
| 06/17/1980 | CA1079838A1 Collision avoidance system |
| 06/12/1980 | WO1980001208A1 Radar system with a multiplicity of antenna beams for elevation coverage |
| 06/11/1980 | EP0012056A1 Telemetry device and use thereof in a tracking radar |
| 06/11/1980 | EP0011912A2 Acoustic detection of wind speed and direction at various altitudes |
| 06/11/1980 | EP0011878A1 Process and apparatus to determine flow speeds, and their application in an ultrasonic diagnosing device |
| 06/11/1980 | EP0011810A1 System for remote recognition of a mobile body carrying a coded transponder unit |
| 06/10/1980 | US4207569 Railroad radio frequency waveguide |
| 06/03/1980 | US4206463 Radar systems |
| 06/03/1980 | US4206462 Secure communication and ranging system |
| 05/27/1980 | USRE30288 Intrusion detection system |
| 05/27/1980 | US4205316 Enhanced accuracy doppler fuze |
| 05/27/1980 | US4205315 Fluid level measurement apparatus for mounting in manholes and similar structures |
| 05/27/1980 | US4205314 Device for measuring the range of a moving target and the speed at which it approaches or recedes |
| 05/27/1980 | US4204655 Broadband interferometer and direction finding missile guidance system |
| 05/20/1980 | US4204210 Synthetic array radar command air launched missile system |
| 05/20/1980 | CA1078047A1 Microwave reflective transponders |
| 05/14/1980 | EP0010974A1 Velocity measuring correlation sonar apparatus |
| 05/14/1980 | EP0010958A1 Homing system and technique for guiding a missile towards a metal target |
| 05/13/1980 | US4203113 Radar method and apparatus |
| 05/13/1980 | US4203112 Method and system for increasing the distance which can be unambiguously measured by a radar system |
| 05/13/1980 | US4203111 Radar device including a circuit arrangement for reducing interference |
| 05/06/1980 | US4201986 Continuous wave radar equipment |
| 04/30/1980 | EP0010481A1 Method of and device for displaying moving targets, in particular in a variable PRF radar |
| 04/29/1980 | US4200872 Doppler compensated digital non-linear waveform generator apparatus |
| 04/29/1980 | US4200871 Acquisition system for continuous-wave frequency modulation object detector |
| 04/22/1980 | US4199759 System for correlating electronic distance measurement and aerial photography for the extension of geodetic control |
| 04/15/1980 | US4198632 Transponder reply limiting by means of recognition of fixed interrogation periods |
| 04/08/1980 | US4197540 Simultaneous transmit and receive radar subsystem |
| 04/08/1980 | US4197538 Pilot's traffic monitoring system |
| 04/08/1980 | US4197537 Intruder detection system |
| 04/08/1980 | US4197536 Airport surface identification and control system |
| 04/03/1980 | WO1980000618A1 Radar installation |
| 04/01/1980 | US4196474 Information display method and apparatus for air traffic control |
| 04/01/1980 | US4196435 Radar pulse phase code system |
| 04/01/1980 | US4196434 Surveillance system for collision avoidance of aircrafts using radar beacon |
| 04/01/1980 | US4196418 Detection plate for an identification system |
| 03/25/1980 | US4195297 Short range radar tracking apparatus |
| 03/25/1980 | US4195296 Microwave circulator |
| 03/25/1980 | US4195289 Microwave intrusion or movement detectors |
| 03/25/1980 | US4195262 Apparatus for measuring microwave electromagnetic fields |
| 03/19/1980 | EP0008865A1 FM/CW radar |
| 03/18/1980 | US4194244 Angle sensing system |
| 03/18/1980 | US4194204 High resolution microwave seeker |
| 03/18/1980 | US4194201 Interrogator-responsor system |
| 03/11/1980 | US4193074 Enhancing radar returns from targets having a small radar cross section |
| 03/11/1980 | US4193073 Method and apparatus for position determination |
| 03/04/1980 | US4192002 Apparatus and methods for position determining and plotting |
| 02/26/1980 | US4190837 System for protecting a vehicle-borne tracking radar against an off-target jammer |
| 02/20/1980 | EP0008120A1 Method of and apparatus for providing information as to the existence and/or position of objects |
| 02/19/1980 | US4189777 Ground proximity warning system with means for altering warning threshold in accordance with wind shear |
| 02/19/1980 | US4189732 Motor actuating circuitry |
| 02/12/1980 | US4188630 Method of and system for avoiding collisions between aircraft |
| 02/12/1980 | US4188629 Passive navigation system with frequency coding |
| 02/12/1980 | US4188581 Signalling system |
| 02/05/1980 | US4187501 Electronic intruder detection system |
| 02/05/1980 | US4187465 Device for protection against transmission errors in an information transmission system |
| 01/29/1980 | US4186397 Short range precision navigation and tracking system and method therefor |
| 01/29/1980 | US4186396 Radar beacon apparatus |
| 01/23/1980 | EP0006941A1 Correlation follower for tracking an object |
| 01/22/1980 | US4185285 Radar for the detection of fixed targets in clutter |
| 01/22/1980 | US4185284 Ground station for the DME distance measuring system |
| 01/15/1980 | US4184156 Doppler radar device for measuring speed of moving objects |
| 01/15/1980 | US4184155 Radar target for remotely sensing hydrological phenomena |
| 01/15/1980 | US4184154 Range and angle determining Doppler radar |
| 01/15/1980 | US4183245 Synchronous frequency-to-voltage converter for doppler apparatus |
| 01/15/1980 | CA1070003A1 System for identifying objects equipped with an automatic transponder |
| 01/09/1980 | EP0006804A1 Precision decoder for the first pulse of a pair of pulses |
| 01/09/1980 | EP0006691A1 Object identification system |
| 01/08/1980 | US4183024 Side-looking radar systems |
| 01/08/1980 | US4183023 Anti-jam device for a conical scan tracking radar |
| 01/08/1980 | US4183022 Transponder for radiocommunication system, particularly for measuring the distance between two stations |
| 01/08/1980 | CA1069606A1 Foreground subject-identifying apparatus |
| 12/25/1979 | US4180815 Radio identification systems |
| 12/25/1979 | US4180814 Multiple beam receiving array signal processor |
| 12/25/1979 | US4180205 Pseudo range and range rate device |
| 12/18/1979 | US4179696 Kalman estimator tracking system |
| 12/18/1979 | US4179695 System for identification of aircraft on airport surface pathways |
| 12/18/1979 | US4179693 Autonomous, check-pointing, navigational system for an airborne vehicle |
| 12/11/1979 | US4178594 Angle servo preamplifier |
| 12/04/1979 | US4177466 Auto theft detection system |
| 12/04/1979 | US4177463 Method and device for measuring the velocity of an object relative to a reference |
| 12/04/1979 | US4176749 Fractions of different densities |
| 11/28/1979 | EP0005534A1 Device for identifying objects and persons |
| 11/27/1979 | US4176353 Radar altimeter tracking circuit apparatus |
| 11/27/1979 | US4176352 Apparatus for deriving information concerning the movements of a vehicle |
| 11/27/1979 | US4176351 Method of operating a continuous wave radar |
| 11/20/1979 | US4175285 Navigational system of high-speed aircraft |
| 11/13/1979 | US4174520 Radar altimeter for tropical areas |