| 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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| 05/10/1994 | US5311189 Method for distinguishing between at least two targets |
| 05/10/1994 | US5311188 Radar apparatus provided with a coherent clutter map |
| 05/10/1994 | US5311187 Search radar system |
| 05/10/1994 | US5311186 Transponder for vehicle identification device |
| 05/10/1994 | US5311184 Airborne weather radar system with aircraft altitude and antenna tilt angle dependent sensitivity time control |
| 05/10/1994 | US5311183 Windshear radar system with upper and lower elevation radar scans |
| 05/10/1994 | US5310999 Secure toll collection system for moving vehicles |
| 05/05/1994 | DE4234559A1 Search antenna for locating buried mines - contains monopole or dipole of metal rods with damping resistances or of high impedance, weakly conducting plastics material elements contg. graphite or carbon@ |
| 05/04/1994 | EP0594797A1 Process for monitoring a zone. |
| 05/04/1994 | EP0594722A1 Rainfall detection |
| 05/03/1994 | US5309409 Target detection system |
| 05/03/1994 | US5309161 Radar with doppler tolerant range sidelobe suppression and time domain signal processing |
| 05/03/1994 | US5309160 Radar system and method having variable tracking range |
| 05/03/1994 | US5308984 Method of operating a dual mode tracking system |
| 05/03/1994 | CA2000166C Vehicle diplex doppler near-obstacle detection system |
| 04/28/1994 | WO1994009382A1 Track filter bias estimation |
| 04/28/1994 | DE4335801A1 Obstacle detector for vehicle using radar system - detects obstacles in vehicle path and is used as part of ABS system to detect vehicle speed and determine ideal travel route |
| 04/27/1994 | EP0594119A1 Doppler-effect vehicle speed sensor using different speed determining rules depending upon receiver output |
| 04/27/1994 | EP0457801B1 Device at a radar level gauge |
| 04/27/1994 | CN1086031A Process and device for securing data mixed into an image |
| 04/26/1994 | US5307293 Apparatus for measuring speed |
| 04/26/1994 | US5307077 Multi-spectral seeker antenna |
| 04/26/1994 | US5307070 Method for resolving ambiguity in the determination of antenna angle of view and Doppler frequency in synthetic aperture radar |
| 04/21/1994 | DE4235072A1 Synthetic aperture radar equipment based on use of rotary antennae - improves detectability of point targets towards edge of field by individual sector reference function corrections for irregular rotation |
| 04/21/1994 | DE4235071A1 Synthetic aperture radar equipment based on use of rotary antennae - overcomes range ambiguity by transmission of pulses having distinguishable characteristic in repetitive sequence |
| 04/20/1994 | EP0593131A1 Combined electronic person admission control system and person search system, suitable in particular for use in winter sports areas |
| 04/20/1994 | EP0592584A1 A device for gauging the level of a fluid. |
| 04/20/1994 | CN1024298C Radar system |
| 04/19/1994 | US5305469 Modem for telecommunication system with a reflection amplifier function |
| 04/19/1994 | US5305008 Interrogator for an identification and telemetry system |
| 04/19/1994 | US5305002 Hinged read-out antenna system |
| 04/19/1994 | US5304940 Unwanted signal suppression device |
| 04/19/1994 | CA2009423C Aperture synthesized radiometer using digital beamforming techniques |
| 04/19/1994 | CA1328684C Method for locating a radio frequency emitter |
| 04/19/1994 | CA1328683C Deactivatable frequency-dividing-transponder tag |
| 04/15/1994 | CA2080142A1 Sound image radar |
| 04/14/1994 | WO1994008322A1 Method, apparatus and system for transmitting and receiving data in a moving linear chain |
| 04/14/1994 | DE4233677A1 Correlation reception of known periodically transmitted pulses - involves multiplying received signal by variable phase control signal formed from transmitted signal |
| 04/13/1994 | EP0592224A1 Dual resonant antenna circuit for RF tags |
| 04/13/1994 | EP0592156A1 Frequency-dividing-transponder tag |
| 04/13/1994 | EP0591652A1 Synthetic aperture radar based on rotating antennae |
| 04/13/1994 | EP0591651A1 Synthetic aperture radar based on rotating antennae |
| 04/13/1994 | EP0591477A1 Arbitrary waveform generator architecture |
| 04/13/1994 | EP0389501B1 Process for determining the condition of a road |
| 04/13/1994 | EP0371133B1 Holographic radar |
| 04/12/1994 | US5302956 Multi-frequency, multi-target vehicular radar system using digital signal processing |
| 04/12/1994 | US5302955 Apparatus for combining data produced from multiple radars illuminating a common target area |
| 04/12/1994 | US5302953 Secondary radar antenna operating in S mode |
| 04/10/1994 | CA2107498A1 Frequency-dividing-transponder tag |
| 04/07/1994 | DE4233341A1 Detection arrangement e.g. for tennis ball - uses receivers at two or more locations on court to detect ball which includes detector-transmitter unit in form of mesh between rubber body and felt cover |
| 04/06/1994 | EP0590846A2 Image processor for target detection and tracking |
| 04/06/1994 | EP0590590A1 Transponder systems for automatic identification purposes |
| 04/06/1994 | EP0590589A1 Transponder antenna with shield |
| 04/05/1994 | US5300933 Stick figure radar tracking process |
| 04/05/1994 | US5300875 Passive (non-contact) recharging of secondary battery cell(s) powering RFID transponder tags |
| 04/05/1994 | CA2002987C Fiber optic radar guided missile system |
| 03/31/1994 | WO1994007225A1 Hazardous waste transport management system |
| 03/31/1994 | WO1994007206A1 Electronic parking and dispatching management method and apparatus |
| 03/31/1994 | WO1994007156A1 Doppler tracking method for object imaging from radar returns |
| 03/30/1994 | EP0588944A1 An improved miniature transponder device |
| 03/30/1994 | EP0588900A1 Method and apparatus for transmitting electromagnetic signals into the earth from a capacitor |
| 03/29/1994 | US5298909 For processing electromagnetic radiation falling within frequency ranges |
| 03/29/1994 | US5298906 Antenna isolation for continuous wave radar systems |
| 03/29/1994 | US5298904 Distance measuring system |
| 03/29/1994 | US5298883 Proximity alert system |
| 03/24/1994 | DE4231311A1 Ascertaining transmission channel pulse response - filtering received test signal to eliminate noise component before evaluation |
| 03/24/1994 | DE3817266A1 Target seeking mine with launch tube - has improved target data acquisition and evaluation system |
| 03/23/1994 | EP0588687A1 System for determining at least one control parameter for vehicular traffic |
| 03/23/1994 | EP0588045A1 Method of exchanging data between a fixed station and moving objects |
| 03/23/1994 | EP0587750A1 Quasi-optical transmission/reflection switch and millimeter-wave imaging system using the same |
| 03/22/1994 | US5296860 Optical fiber based bistatic radar |
| 03/17/1994 | WO1994006031A1 Apparatus for automatic refuelling of vehicles |
| 03/16/1994 | EP0587454A2 High-frequency signal generator and radar module |
| 03/16/1994 | EP0587041A1 Method of compensation of a part of a signal produced by a moving radar antenna |
| 03/16/1994 | CA2106115A1 System for computing at least one parameter of vehicle traffic control |
| 03/15/1994 | US5294933 Wideband radar system utilizing adaptive interference canceler |
| 03/15/1994 | US5294932 Method for the simultaneous determination of the distance and the speed of a target in a radar system |
| 03/15/1994 | US5294931 Method of interrogating a plurality of transponders arranged in the transmission range of an interrogating device and transponders for use in the said method |
| 03/15/1994 | US5294930 Optical RF stereo |
| 03/15/1994 | US5294081 Automatic control system for a railway vehicle's speed and stopping |
| 03/10/1994 | DE4229862A1 Data transponder container embedded in ground - uses outer protective sleeve of anti-magnetic and/or non-conductive material with end caps at opposite ends |
| 03/09/1994 | EP0586302A1 On-board navigation system for aircraft comprising a side-looking synthetic aperture radar |
| 03/09/1994 | EP0586284A1 Method for compressing the transmitted information volume for track data transmission |
| 03/09/1994 | EP0585458A1 Device for sensing aircraft |
| 03/09/1994 | EP0354225B1 Process for adapting the frequency band of an oscillating circuit made from a metal-plastic-metal sandwich foil useful as an identification label |
| 03/08/1994 | US5293168 Radar apparatus and method |
| 03/08/1994 | CA1327642C Sea tracking system |
| 03/03/1994 | WO1994005090A1 Identification apparatus |
| 03/03/1994 | WO1994004975A1 Recording of operational events in an automotive vehicle |
| 03/03/1994 | WO1994004941A1 Smart blind spot sensor |
| 03/03/1994 | WO1994004940A1 Multi-frequency, multi-target vehicular radar system using digital signal processing |
| 03/03/1994 | WO1994004939A1 Interference avoidance system for vehicular radar system |
| 03/03/1994 | DE4304290C1 EM wave, esp. light, transition time measuring appts. - transmits light pulses over measurement path to receiver, has pulse generator and light modulator in feedback path. |
| 03/03/1994 | DE4228539A1 Multi-sensor system for evaluating military situation - uses ground sensor network for coarse reconnaissance and airborne sensor system for detailed reconnaissance |
| 03/03/1994 | CA2141838A1 Identification apparatus |
| 03/03/1994 | CA2104761A1 Electronic device to improve a golf swing |
| 03/02/1994 | EP0585132A1 Synchronised electronic identification system |
| 03/02/1994 | EP0584111A1 Oceanographic and meteorological data |
| 03/02/1994 | EP0326574B1 Head-mounted data display |
| 03/02/1994 | CA2105228A1 Process for compressing the volume of transmitted runway informations |