Patents for G01S 7 - Details of systems according to groups , , (41,338)
08/1991
08/27/1991US5042303 Apparatus for ultrasound detection
08/27/1991CA1288150C Optical ranging by phase shift measurement
08/22/1991WO1991013369A1 Combined reflection and transmission ultrasonic imaging method and apparatus
08/22/1991DE4005453A1 Stand-off distance measuring equipment - including measuring laser, used on material processing laser
08/22/1991DE4004530A1 Optical distance measuring appts. - has light transmitters and receivers forming transducer pairs
08/22/1991CA2051653A1 Combined reflection and transmission ultrasonic imaging method and apparatus
08/21/1991WO1991013368A1 Computed-interferometry radar system with coherent integration
08/21/1991EP0442450A2 Variable origin - variable angle acoustic scanning method and apparatus
08/21/1991EP0190166B1 Rf amplifier with frequency spectrum control
08/21/1991CA2051100A1 Computed-interferometry radar system with coherent integration
08/20/1991US5042086 Method and means for transmitting large dynamic analog signals in optical fiber systems
08/20/1991US5040892 Method and apparatus for determining the direction to a laser beam source
08/20/1991US5040891 Laser-warning method and apparatus
08/20/1991US5040869 Duping arrangement for laser distance measuring devices
08/14/1991EP0441712A1 Microwave transponder system with polarising resonant plane antenna
08/14/1991EP0441555A2 System for the detection of objects
08/14/1991EP0440956A2 Method and apparatus of photodetection
08/14/1991DE4003775A1 Control system for ultrasonic range sensor - uses variation of selected transmission parameter to differentiate between different sensors
08/14/1991DE4003774A1 Sound intensity compensation system for ultrasonic range sensor - uses measurement of spatial sound field to obtain values for compensation voltage characteristic
08/13/1991US5038612 Ultrasonic measuring device
08/08/1991WO1991011733A1 Radar apparatus
08/08/1991WO1991011146A1 Ultrasonic method and apparatus for determination of vessel location and size
08/07/1991EP0440200A2 Method of managing beams formed by phased array antennas and apparatus therefor
08/06/1991US5038145 Constant false alarm rate with low probability of false alarms
08/06/1991US5038051 Solid state modulator for microwave transmitters
08/01/1991DE4100867A1 Production of orthographic ultrasonic images, for medical diagnosis - using ultrasonic transmission and reception systems including reflex camera arrangement
07/1991
07/31/1991EP0439011A2 Distance measurement device
07/31/1991EP0438569A1 Adaptive network for classifying time-varying data
07/30/1991US5036477 Method for the interference suppression in ultrasonic distance measurements
07/30/1991US5036330 Ranging system using correlation between two spread spectrum wave signals
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
07/30/1991US5036323 Active radar stealth device
07/30/1991US5035506 Coherent detection with increased sensitivity using four-wave amplification
07/25/1991WO1991011037A1 Real time signal separation method and device
07/25/1991WO1991010920A1 Device and process for detecting the presence of a vehicle by means of an ultrasonic device
07/25/1991WO1991010918A1 Collision avoidance transmit system with autocalibration
07/25/1991WO1991010913A1 Coherent frequency burst detector apparatus and method
07/24/1991EP0437649A1 Method of ultrasound imaging
07/24/1991EP0142555B1 Dual band phased array using wideband elements with diplexer
07/23/1991US5034931 Display detection enhancement
07/23/1991US5034810 Two wavelength in-situ imaging of solitary internal waves
07/23/1991US5034750 Pulse radar and components therefor
07/23/1991US5034747 Detachable radar unit for a helmet
07/23/1991US5033845 Multi-direction distance measuring method and apparatus
07/23/1991CA1286735C Cascaded internal impedance dependent amplifier with accurate variable gain control
07/16/1991US5032843 Pulse compression radar and application for mapping or meteorology
07/16/1991US5032842 Detection system with adjustable target area
07/16/1991US5032839 Self-equalizing coherent optical RF memory
07/16/1991US5031627 Method and apparatus for characterizing reflected ultrasonic pulses
07/16/1991CA1286278C Automatic flow-control device
07/11/1991WO1991010111A1 Apparatus for measuring three-dimensional coordinate
07/11/1991DE4040757A1 Range meter for automatic focusing camera - has array of light projectors and photo diode array producing output signal corresp. to position at which light is received
07/10/1991CN1052953A 相干雷达 Coherent Radar
07/09/1991US5031157 Color sonar for underwater object collision avoidance
07/09/1991US5029999 Laser radar device
07/09/1991US5029475 Measuring spatial distribution of spacings between point scatterers
07/04/1991DE4017022A1 Ultrasonic received signal insertion point definition circuit - examines RAM contents with regard to signal period and corrects cycle length value
07/04/1991DE4017021A1 Ultrasound signal start definition circuitry - forms propagation time and period duration signals using two voltage comparators of differing thresholds
07/03/1991EP0435011A2 Camera for distance imaging
07/02/1991USH933 Infrared coherent optical sensor
07/02/1991US5029009 Imaging camera with adaptive range gating
07/02/1991US5028931 Adaptive array processor
07/02/1991US5028920 Driver alerting device
07/02/1991US5028877 Circuit arrangement for a fast Fourier transform
07/02/1991US5027821 Ultrasonic imaging apparatus
07/02/1991US5027820 Device for the three-dimensional focusing of an ultrasonic beam
07/02/1991US5027658 Three dimensional imaging method and device using ellipsoidal backprojection with arbitrarily shaped pulses
06/1991
06/27/1991WO1991009375A1 Integrated vehicle positioning and navigation system, apparatus and method
06/27/1991WO1991009323A2 Detection device
06/27/1991DE3942850A1 Testing distance sensor accurately for rapid changes - rotating transmitted beam w.r.t. curved object surface
06/27/1991DE3942499A1 Electro-optical vehicle distance measurer - uses spark source for a measurement beam for low power operation in transit time method
06/26/1991EP0434229A2 Enhanced ocean bottom sonar system
06/26/1991EP0433492A1 Ultrasonic device for the virtual reduction of the array partition of a connectable transducer array
06/26/1991CN1052555A Incompletely synchronous counting-timing method in precise pulse ranging system
06/25/1991US5027413 Target detection systems
06/25/1991US5027123 Adaptive interference canceller
06/25/1991US5027121 Video processor for a counter-countermeasure system
06/25/1991US5026156 Method and system for pulse interval modulation
06/25/1991US5025666 Transducer with built-in printed circuit board
06/25/1991CA1285320C Switching helix power supply for a twt
06/19/1991EP0432961A2 Microwave distance measuring apparatus
06/19/1991EP0432887A2 Pulsed coherent Doppler laser radar
06/19/1991EP0432851A2 Variable bi-phase modulator circuits and variable resistors
06/18/1991US5025423 Enhanced bottom sonar system
06/18/1991US5025273 RF drive circuit for an ion projection printing head
06/18/1991US5025260 Measuring system
06/18/1991US5025143 Enhanced clutter suppression apparatus for use with an infrared search and surveillance system
06/18/1991US5024094 Ultrasonic imaging system of bonding zone
06/13/1991CA2025008A1 Pulsed coherent doppler laser radar
06/12/1991WO1991009275A2 Integrated vehicle positioning and navigation system, apparatus and method
06/12/1991EP0431299A2 Two wavelength in-situ imaging of solitary internal waves
06/12/1991CA2071831A1 Integrated vehicle positioning and navigation system, apparatus and method
06/11/1991US5023888 Pulse code recognition method and system
06/11/1991US5023846 Ultrasonic detector for detecting a thin film
06/11/1991US5023618 FM-CW radar apparatus
06/11/1991US5023617 Vehicle forward sensor antenna steering system
06/11/1991US5023594 Electromagnetic radiation
06/08/1991CA2028885A1 Two wavelength in-situ imaging of solitary internal waves