Patents
Sitemap › G01 - Measuring; Testing › G01S - Radio direction-finding; Radio navigation; Determining distance or velocity by use of radio waves; Locating or presence-detecting by use of the reflection or reradiation of radio waves; Analogous arrangements using other waves › 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
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)
07/1991
07/30/1991US5036328 Pulse compressing apparatus for a radar system using a long pulse
07/30/1991US5036327 Single oscillator FSK pulsed radar receiving transmitter
07/30/1991US5036326 Method and device for the display of several radar images in a single mosaic
07/30/1991US5036325 Doppler determination system for MTI radars
07/30/1991US5036324 Pulse compression technique for high duty factor radar
07/30/1991US5036308 Identification system
07/30/1991US5035375 Fiber optic radar guided missile system
07/26/1991WO1991011730A1 Precision landing system
07/25/1991WO1991010919A1 Range-finder system
07/25/1991WO1991010918A1 Collision avoidance transmit system with autocalibration
07/24/1991EP0438250A1 System for reading and writing data from and into remote tags
07/23/1991US5034750 Pulse radar and components therefor
07/23/1991US5034748 Narrow band automatic phase control tracking circuitry
07/23/1991CA1286735C Cascaded internal impedance dependent amplifier with accurate variable gain control
07/18/1991DE4100693A1 Contactless transceiver for portable data I=O device - has EM for data transfer between integrated circuit card and read-write device
07/16/1991US5032843 Pulse compression radar and application for mapping or meteorology
07/16/1991US5032841 Method and apparatus for ground radar information display system
07/16/1991CA1286390C Method of and system and apparatus for locating and/or tracking stolen or missing vehicles and the like
07/11/1991WO1991010290A1 Mobile communication system and mobile communication equipment
07/10/1991EP0436302A2 Integrated altimeter and doppler velocity sensor arrangement
07/10/1991EP0436048A1 Oblique spaced antenna method and system for measuring atmospheric wind fields
07/09/1991US5030956 Radar tomography
07/09/1991US5030807 System for reading and writing data from and into remote tags
07/09/1991CA1286022C Processing parameter generator for synthetic aperture radar
07/03/1991EP0435607A2 Transponder
07/03/1991EP0435055A1 Time-measuring device for vehicles
07/02/1991US5029307 Synthetic aperture radar apparatus
07/02/1991US5029092 Device of suppressing incorrect alarms for use in a collision avoidance system installed in an airplane
07/02/1991US5028929 Icing hazard detection for aircraft
07/02/1991US5028920 Driver alerting device
06/1991
06/29/1991CA2033304A1 Locatable object suitable for underground use and methods of locating same
06/27/1991WO1991009435A1 Airborne iff antenna with switchable multiple diagrams
06/27/1991WO1991009323A2 Detection device
06/27/1991CA2032913A1 Arrangement for timing moving objects
06/26/1991EP0434503A1 Coherent pulse radar system and method for detecting a target presenting flashes of a very short duration
06/26/1991EP0434064A2 Synthetic aperture radar with dead-ahead beam sharpening capability
06/26/1991EP0433675A2 Method for error correction in a radar employing the cross-feed principle
06/26/1991EP0433351A1 Automatic anti-collision process and device for autonomous vehicles.
06/26/1991CN2079759U Low cost detector for doppler effect
06/25/1991US5027122 Method and apparatus for doppler velocity de-aliasing
06/25/1991US5027107 Frequency sensor
06/20/1991DE3938147A1 Controlling distribution of gravel, sand, salt etc. on roads in winter - dispensing in controlled pattern by microprocessor unit
06/19/1991EP0433161A1 MLS type landing aid system, having centralized means for microwave generation
06/19/1991EP0432851A2 Variable bi-phase modulator circuits and variable resistors
06/18/1991US5025492 Damping circuit for the antenna resonance circuit of a radio transmitter-receiver
06/18/1991US5025260 Measuring system
06/18/1991CA1285049C Single chip transponder device
06/16/1991CA2032075A1 Mls type landing aid system with centralized microwave generation means
06/13/1991WO1991008614A1 Device generating a frequency modulated signal of the 'ramp signal' type using a surface wave dispersive filter generation
06/12/1991EP0431449A2 Surveillance system for aircraft
06/11/1991US5023618 FM-CW radar apparatus
06/11/1991US5023617 Vehicle forward sensor antenna steering system
06/11/1991US5023616 Microphone amplifier detector
06/11/1991US5023594 Electromagnetic radiation
06/06/1991WO1991008622A1 Dual satellite navigation method and system
06/05/1991EP0430148A2 Distance measurement method and apparatus, and relative position measurement apparatus
06/05/1991EP0429952A2 Automatic landing system
06/05/1991EP0429568A1 Identification system using hertzian waves, consisting of an interrogation station and a responder unit.
06/05/1991EP0187809B1 A method for position-finding and apparatus herefor
06/04/1991US5021794 Telephone-activated
06/04/1991US5021791 Carrier frequency oscillator
06/04/1991US5021790 Microwave date transmission apparatus
06/04/1991US5021789 Real-time high resolution autofocus system in digital radar signal processors
05/1991
05/29/1991EP0429335A1 Doppler radar for detecting and locating helicopters
05/29/1991EP0429090A2 Device for the automatic correction of the differential error, preferably for a monopulse radar receiver
05/29/1991DE3939040A1 Roll position measurement appts. for flying body - has two antennae fixed to flying body at orthogonal polarisation directions, different HF waveguide switch operating frequencies
05/28/1991US5019825 Coherently interruptible frequency hopped chirp generator
05/28/1991US5019822 Marine object detector
05/28/1991US5019815 Radio frequency controlled interrogator-responder system with passive code generator
05/28/1991US5019813 System for the contactless exchange of data
05/28/1991US5018685 Data link and return link
05/25/1991CA2030851A1 Distance measurement method and apparatus, and relative position measurement apparatus
05/22/1991EP0427969A2 Pulse time of flight measurement device
05/21/1991US5017930 Precision landing system
05/21/1991US5017929 Angle of arrival measuring technique
05/21/1991US5017927 Monopulse phased array antenna with plural transmit-receive module phase shifters
05/21/1991US5017926 Dual satellite navigation system
05/21/1991US5017923 Over the horizon communication system
05/21/1991US5017922 Radar system having a synthetic aperture on the basis of rotating antennae
05/21/1991US5017921 Radar system and a method for operating a radar system
05/18/1991CA2029777A1 Doppler radar for detecting and determining position of helicopters
05/16/1991DE3533212A1 Aircraft Friend-or Foe identification appts. for e.g. tank - comprises expected and actual values of target light parameters and sends friend of foe signal independent of aircraft flight parameters
05/15/1991EP0427469A2 Radar system
05/15/1991EP0427342A1 Transmission system
05/15/1991EP0427206A2 Transmitter phase and amplitude correction for linear FM systems
05/15/1991EP0426881A2 Radar receiver
05/14/1991WO1991007671A1 Inductive input/output coupling for a surface acoustic wave device
05/14/1991US5016227 Top mounted buoy signaling device
05/14/1991US5016018 Aperture synthesized radiometer using digital beamforming techniques
05/14/1991US5016017 Doppler radar speed detecting method and apparatus therefor
05/14/1991US5016016 Volume-scattered echo discrimination device for FM/CW range measuring radar and use in a radio altimeter
05/08/1991EP0426543A1 Apparatus for detection of signals from interrogated responders by secondary radar in the presence of multitrajectory phenomena
05/08/1991EP0426332A2 Electronic systems for the protection of articles
05/07/1991US5014200 Adaptive cruise system
05/07/1991US5014064 Monopulse tracking apparatus and method of operating same
05/07/1991US5014063 Integrated altimeter and doppler velocity sensor arrangement
05/07/1991US5014061 Adaptive multifrequency signal combining system
05/07/1991US5014040 Personal locator transmitter
05/07/1991CA2028355A1 Radar system
05/07/1991CA1283966C Method and apparatus for determining the distance of an object
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