Patents for G01S 15 - Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems (17,242)
05/1994
05/24/1994US5313947 CW and pulsed doppler diagnostic system
05/18/1994EP0597194A2 Acoustic echo sounder
05/18/1994EP0367826B1 Pulse doppler mti apparatus
05/17/1994US5311870 Ultrasonic Doppler imaging apparatus
05/11/1994WO1994010583A1 Correlation sonar system
05/11/1994EP0596560A1 Apparatus for the examination of media by ultrasonic echography
05/11/1994EP0596342A1 Ultrasonic measuring apparatus which minimizes the number of digital values treated by processing means
05/10/1994CA2001669C Ultrasonic treatment device by means of a focalizing and oscillating piezoelectrical ceramic
05/04/1994EP0595695A1 Ultrasonic sounding system with digital phase control
05/04/1994EP0395733B1 Scanning sonar system
05/03/1994US5309408 Sonar system
05/03/1994CA2109010A1 Ultrasonic measuring apparatus which minimizes the number of digital values treated by processing means
04/1994
04/28/1994WO1994005993A3 Elastographic measurement and imaging apparatus and method
04/28/1994DE4335801A1 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
04/28/1994DE4302537C1 Ultrasound imaging and therapy device - generates imaging waves and focussed treatment waves having two differing frequencies for location and treatment of e.g tumours
04/27/1994EP0594119A1 Doppler-effect vehicle speed sensor using different speed determining rules depending upon receiver output
04/27/1994EP0593921A2 Apparatus for measurement and imaging of tissue compressibility or compliance
04/27/1994CN1086016A Distance measuring system arranged to limit false indications of distance measurements
04/26/1994US5306953 Rear view mirror positioning and alerting apparatus
04/26/1994US5305756 Volumetric ultrasonic imaging with diverging elevational ultrasound beams
04/26/1994US5305753 Method and apparatus for determining the velocity of a flowing liquid
04/20/1994EP0593188A2 High resolution acoustic echo ranging system
04/20/1994EP0593178A2 Improved sonar signal processor and display
04/20/1994EP0592967A2 Ultrasonic tissue imaging method and apparatus with doppler velocity and acceleration processing
04/20/1994EP0323968B1 Method and apparatus for measuring volume fluid flow
04/20/1994CN1024310C Equipment & transmitting method for video information of coding explorer for fishes
04/19/1994US5305286 Bistatic/monostatic sonar fence
04/14/1994WO1994008253A1 Therapy device for destroying a target by acoustic signals featuring time reversal
04/14/1994WO1994008252A1 Process for setting the transmission frequency in a distance measuring equipment working according to the echo-sounding principle
04/14/1994DE4234300A1 Container-tank full sensor-indicator using ultrasonic transceiver - stores fixed and false echo profile and subtracts from received signal to determine real amt.
04/13/1994EP0591368A1 Mode suppression in fluid flow measurement
04/13/1994EP0510023B1 Device for detecting the presence of a vehicle by means of an ultrasonic device
04/12/1994US5303208 Side looking sonar transducer
04/12/1994US5303205 Vehicular distance measuring system with integral mirror display
04/12/1994US5303204 Submerged object warning and logging system
04/12/1994US5301674 Method and apparatus for focusing transmission and reception of ultrasonic beams
04/12/1994US5301670 Ultrasonic diagnosis apparatus
04/09/1994CA2082219A1 Frequency interrupt continuous transmit active sonar transmission and signal processing technique
04/07/1994DE4302538C1 Ultrasonic therapy device for tumour treatment lithotripsy or osteorestoration - with ultrasonic imaging and ultrasonic treatment modes using respective acoustic wave frequencies
04/07/1994DE4232254A1 Ultrasonic testing method for locating material defects - driving ultrasonic transducer with FM chirp signal with instantaneous frequency variation matched to transmission path transfer function
04/06/1994EP0591061A1 Method and device for acoustic examination with time reversal
04/06/1994EP0590846A2 Image processor for target detection and tracking
04/06/1994EP0502867B1 Process and device for the measurement of distances in gases and liquids using ultrasonics
04/05/1994US5299577 Apparatus and method for image processing including one-dimensional clean approximation
04/05/1994US5299576 Ultrasonic synthetic aperture diagnostic apparatus
03/1994
03/29/1994US5299174 Automatic clutter elimination
03/29/1994US5299173 Method and apparatus for underwater sonar scanning
03/29/1994US5297552 Process for measuring the position of at least one mobile interface using ultrasound and apparatus for carrying out said process
03/24/1994DE4312595A1 Collision prevention system for vehicles - uses distance sensing arrangement with ultrasound transmitter mounted on front face of vehicle.
03/24/1994DE4231471A1 Receiving or processing electronic signals - passing signals through selection circuits with multiplexers whose clock frequency determine middle frequency of selection.
03/22/1994USRE34566 Three-dimensional imaging system
03/22/1994US5297109 Piling and pier inspection apparatus and method
03/22/1994US5295485 Ultrasonic diagnostic system
03/17/1994WO1994005993A2 Elastographic measurement and imaging apparatus and method
03/17/1994WO1994005525A1 Vehicle alarm system
03/17/1994DE4230626A1 Ultrasonic measurement of vol. flow of bulk material on conveyor belt - checking correct running and plausibility of measured values in computation of instantaneous rate and aggregate quantity.
03/17/1994DE4230415A1 Ultrasonic thickness measurement system e.g. for fat and muscle - includes piezoelectric crystals and ultrasonic processing circuits for imaging of organs and different layers of tissue
03/16/1994EP0299051B1 Channel adaptive active sonar
03/15/1994US5295119 Proximity device
03/15/1994US5295118 Synthetic aperture side-looking sonar apparatus
03/15/1994US5293871 System for ultrasonically determining corneal layer thicknesses and shape
03/15/1994US5293870 Method and apparatus for elastographic measurement and imaging
03/10/1994DE4229817A1 Non=destructive and non-invasive ultrasonic measurement of temp. inside e.g. liver or kidney - applying pulse-contg. acoustic waveform at spaced times and comparing image echo signals e.g. by subtraction
03/10/1994DE4226865A1 Ultrasonic dermatological diagnosis arrangement - contains applicator with ultrasonic transducer and image display forming hand guided diagnostic unit
03/08/1994US5293351 Acoustic search device
03/08/1994US5291892 Ultrasonic flow imaging
03/03/1994WO1994005090A1 Identification apparatus
03/03/1994WO1994001786A3 Methods and apparatus for the examination of internal organs
03/03/1994DE4229079A1 Pulse echo distance measuring system, e.g. for filling level monitor - uses transmitted signal comprising discrete pulse packets with individual evaluation of received signal echo components
03/03/1994DE4228794A1 Vehicle blind spot monitoring device - uses detection element and evaluation device for operating signalling device indicating presence of vehicle within blind spot zone
03/03/1994CA2141838A1 Identification apparatus
03/02/1994EP0585070A1 Enhancement of organ wall motion discrimination
03/02/1994EP0584482A2 Method for detecting and displaying the precision of measured depth values
03/02/1994EP0326574B1 Head-mounted data display
03/01/1994US5291090 Curvilinear interleaved longitudinal-mode ultrasound transducers
03/01/1994CA1327392C Steered linear color doppler imaging
02/1994
02/24/1994DE4324819A1 Security cabin enclosure for detection of persons carrying arms
02/23/1994EP0583386A1 Method and apparatus for elastographic measurement and imaging
02/22/1994US5287753 Continuous display of peak and mean blood flow velocities
02/17/1994DE4226543A1 Acoustic alarm system for motor vehicles using echo signals - generated by applying signal to internal passenger compartment with each subjected to spectral analysis and comparison with reference
02/15/1994US5287330 Sonar apparatus
02/15/1994US5287329 Doppler-effect vehicle ground speed detecting apparatus with means for adjusting frequency of generated wave
02/15/1994US5285788 Ultrasonic tissue imaging method and apparatus with doppler velocity and acceleration processing
02/10/1994DE4326051A1 Safety system for autonomous motor vehicle - contains detector of changes in detection region of obstruction detector eg ultrasound radar
02/09/1994EP0582462A2 Ultrasonic diagnosing apparatus
02/03/1994WO1994002070A1 Doppler speech generation method and apparatus
02/01/1994US5282471 Ultrasonic imaging system capable of displaying 3-dimensional angiogram in real time mode
02/01/1994CA1326709C Acoustic range finding system
01/1994
01/27/1994DE4224035A1 Ultrasound test method for flaw location - using frequency modulated chirp signal whose instantaneous frequency time characteristic is matched to transfer function of transmission path
01/25/1994US5280787 Ultrasonic method and apparaus for determination of vessel location and size
01/20/1994WO1994001944A1 Distance measuring system arranged to limit false indications of distance measurements
01/20/1994WO1994001787A1 Vehicular distance measuring system with integral mirror display
01/20/1994WO1994001786A2 Methods and apparatus for the examination of internal organs
01/20/1994DE4323313A1 Medical ultrasonic diagnosis system - has ultrasonic converters arranged in specified direction in order to obtain tomographic images of inside of subject using ultrasonic waves which are transmitted from and received by probe
01/18/1994US5279672 Controlled movement
01/18/1994US5279302 Ultrasonic doppler blood flow measuring apparatus
01/13/1994DE4320588A1 Gray scale windowing process for eg medical diagnosis - maximises use of changes in signal intensity determining windowing as function of spatial frequency
01/11/1994US5278757 Synthetic aperture ultrasonic imaging system using a minimum or reduced redundancy phased array
01/11/1994US5277065 Detector with ringdown frequency matching
01/06/1994WO1994000052A1 Automated position translator for ultrasonic imaging probe