| 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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| 09/25/1990 | CA1274618A1 Finding the direction of a sound |
| 09/20/1990 | WO1990010926A1 Process and device for reducing the noise emission of submerged submarines |
| 09/19/1990 | EP0388210A2 Target aimpoint location |
| 09/18/1990 | US4958224 Forced correlation/mixed mode tracking system |
| 09/18/1990 | US4958077 Method and apparatus for displaying moving objects |
| 09/05/1990 | EP0385852A1 Device for fast movement restitution by observation of a reflecting pattern and method for the realisation of the device |
| 09/04/1990 | US4955003 Phase accumulator-bearing tracker |
| 09/04/1990 | US4955001 Areal sound intensity receiver |
| 09/04/1990 | US4954835 Radiodirection finding method and apparatus using doppler effect frequency modulation |
| 08/29/1990 | EP0384527A1 Device for determining the energy centre direction of a luminous object |
| 08/29/1990 | EP0383783A1 Automatic vehicle guidance systems |
| 08/29/1990 | EP0383761A1 Method and apparatus for processing synthetic aperture aerial signals |
| 08/21/1990 | US4951061 Two dimensional acousto-optic signal processor using circular antenna array and a butler matrix |
| 08/21/1990 | US4950881 Method and apparatus for tracking a missile |
| 08/21/1990 | US4950076 Alternate approach for obtaining dynamic range in monopulse guidance systems |
| 08/14/1990 | US4949088 System for identifying distance and range between a radar source and a vehicle |
| 08/09/1990 | WO1990009076A1 Scene based nonuniformity compensation for staring focal plane arrays |
| 08/08/1990 | EP0380535A1 Automatic vehicle guidance systems |
| 08/08/1990 | EP0235286B1 Infrared sensor provided with feedback limited amplifier |
| 08/07/1990 | USRE33287 Carrier tracking system |
| 08/07/1990 | US4947176 Multiple-beam antenna system |
| 08/07/1990 | US4946277 Opto-electronic device for detecting and locating a radiant source |
| 07/31/1990 | US4944588 System for detecting laser radiation |
| 07/31/1990 | US4944587 Star sensor |
| 07/22/1990 | WO1990008060A1 Emergency rescue system |
| 07/22/1990 | CA2025892A1 Emergency rescue system |
| 07/17/1990 | US4942292 Apparatus for following sun light |
| 07/12/1990 | WO1990007720A1 Electro-optical scanning system for a hemispherical space |
| 07/11/1990 | EP0222885B1 Spectral analyzer and direction indicator and aircraft landing system application |
| 07/10/1990 | US4940986 Millimeter wave locating |
| 07/04/1990 | EP0375744A1 A method to measure the angle of incidence for radiation and a detector to carry out the method. |
| 07/03/1990 | US4939700 Bathymetry using computational algorithm field and background of the invention |
| 06/28/1990 | WO1990007102A1 Sensor for an air-conditioning system in a vehicle |
| 06/27/1990 | EP0375304A2 Hydrophone and similar sensor |
| 06/27/1990 | EP0374902A2 Microphone system for determining the direction and position of a sound source |
| 06/26/1990 | US4937878 Signal processing for autonomous acquisition of objects in cluttered background |
| 06/21/1990 | DE3841197A1 Startanlage fuer lenkwaffen Guided missile launch base for |
| 06/20/1990 | EP0373604A1 Direction tracking antenna system |
| 06/19/1990 | US4935908 Finding the direction of a sound |
| 06/12/1990 | US4933951 Planar radiator for use in outer space |
| 06/12/1990 | US4933618 For use on a non-stationary support |
| 06/12/1990 | US4933550 Photodetector system with controllable position-dependent sensitivity |
| 06/12/1990 | CA1270314A1 Method and apparatus for loop direction finding with no ambiguity |
| 05/31/1990 | DE3839610A1 Radio reconnaisance system |
| 05/29/1990 | US4929958 High precision radar detection system and method |
| 05/22/1990 | US4928263 Hydrophones and similar devices |
| 05/15/1990 | US4926042 Method of and device for detecting light receiving position utilizing optical fibers |
| 05/09/1990 | EP0367487A2 RF signal direction finding apparatus |
| 05/09/1990 | EP0367407A2 Process and apparatus for controlling alignment of a transmit laser beam of a coherent detection optical communications transmitter/receiver terminal |
| 05/02/1990 | EP0366246A2 Direction finding apparatus using several directional antennae |
| 05/02/1990 | EP0366136A1 Image sensing and processing device |
| 05/01/1990 | US4922088 Automatic solar lighting apparatus having a solar following sensor |
| 05/01/1990 | CA1268534A1 Vertical marine flute |
| 05/01/1990 | CA1268525A1 Position sensing system for a moving object |
| 04/24/1990 | US4920348 Method and apparatus for signal modulation and detection |
| 04/18/1990 | EP0364364A1 Method and system for the detection of forest fires in particular |
| 04/18/1990 | EP0363619A2 High-frequency direction finding device for motor vehicles |
| 04/13/1990 | CA2000585A1 Method of and system for detecting in particular forest fires |
| 04/11/1990 | EP0362914A2 Surveillance radar |
| 04/11/1990 | EP0362873A2 Analog associative processor for angle-only target location |
| 04/11/1990 | EP0362473A2 Laser warning sensor |
| 04/11/1990 | EP0362276A1 Device for the selective detection of objects |
| 04/03/1990 | US4914642 Remote sonic location system |
| 04/03/1990 | US4914604 Processor for analyzing angle-only data |
| 04/03/1990 | US4914287 Laser radiation protected horizon sensor with successive reststrahlen |
| 04/03/1990 | US4914284 Optical wide angle sensor head |
| 04/03/1990 | US4914283 Circuit arrangement for evaluating the output of a photodiode unit |
| 03/29/1990 | DE3832678A1 Direction-finding method with a small number of spatially offset directional characteristics |
| 03/28/1990 | EP0360354A1 An implement for milking an animal as well as a method of connecting teat cups to the teats of same |
| 03/27/1990 | US4912643 Position sensing apparatus |
| 03/27/1990 | US4912475 Techniques for determining orbital data |
| 03/22/1990 | WO1990001706A3 Signal processing for autonomous acquisition of objects in cluttered background |
| 03/20/1990 | US4910719 Passive sound telemetry method |
| 03/20/1990 | US4910718 Method and apparatus for acoustic emission monitoring |
| 03/20/1990 | US4910526 Airborne surveillance method and system |
| 03/20/1990 | US4910395 Optical tracking sensor including a three-sided prismatic light splitter |
| 03/20/1990 | US4909627 Integrated-optics implementation of an interferometric spectrum analyser |
| 03/14/1990 | EP0358436A2 Infrared detection element |
| 03/13/1990 | US4908705 Steerable wide-angle imaging system |
| 03/06/1990 | US4907010 Directionally sensitive receiving antenna employing gyrotropic material |
| 02/28/1990 | EP0355311A2 Method and device for guiding moving bodies |
| 02/28/1990 | EP0355310A2 System for the recognition of the start and approach of objects |
| 02/27/1990 | US4905315 Camera tracking movable transmitter apparatus |
| 02/22/1990 | WO1990001706A2 Signal processing for autonomous acquisition of objects in cluttered background |
| 02/20/1990 | US4903032 Method and device for protection against a jammer in a radio station comprising several change-over antennas and their use for the making of radiogoniometers |
| 02/15/1990 | DE3828614C1 Device for remote control, especially remote control of a missile |
| 02/14/1990 | EP0138987B1 Four-quadrant gate-sizing technique |
| 02/06/1990 | USH746 Solar reference flight roll position sensor |
| 02/06/1990 | CA1265602A1 Radio direction-finding |
| 02/06/1990 | CA1265510A2 Position determination of stirrer in tank |
| 01/30/1990 | US4897538 Light pulse detecting system with highly reduced false alarm rate, usable for laser detection |
| 01/17/1990 | EP0351003A1 Device for determining contrasted objects in an image |
| 01/17/1990 | EP0350866A1 Photodetector system with controllable position-dependent sensitivity |
| 01/11/1990 | WO1990000257A1 Attitude measuring device |
| 01/10/1990 | CN1006407B Narrow frequency band supersonic leak detector |
| 01/09/1990 | US4893288 Audible antenna alignment apparatus |
| 01/09/1990 | US4893284 Calibration of phased array ultrasound probe |
| 01/09/1990 | US4893182 Video tracking and display system |
| 01/02/1990 | US4890918 Docking alignment system |
| 12/28/1989 | DE3825661A1 Direction-finding arrangement having directional antennas |