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 15 - Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
Patents for G01S 15 - Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems (17,242)
07/1981
07/22/1981EP0032278A1 Ultrasonic detection system
07/21/1981US4280204 Mobility cane for the blind incorporating ultrasonic obstacle sensing apparatus
07/21/1981US4280203 Sonar beam forming utilizing the chirp Z-transform
07/21/1981US4279157 Method of and device for determining the internal structure of a body by means of acoustic beams
07/14/1981US4279019 Method and apparatus for delay analysis of energy transmitted through a medium
07/14/1981US4278962 Automatic alarm system for detecting obstacles behind a backing vehicle
07/07/1981CA1104705A1 Ultrasonic testing of cylinder bores
07/01/1981EP0031102A2 An ultrasonic flow meter
06/1981
06/30/1981US4276621 Object confirming apparatus
06/30/1981US4276491 Focusing piezoelectric ultrasonic medical diagnostic system
06/30/1981US4275597 Ultrasonic beam scanning technique and apparatus
06/30/1981CA1104245A1 Doppler acoustic wind sensor
06/23/1981US4275460 Real-time audio spectrum analyzer
06/23/1981US4274421 Echo sound apparatus including an oscillating mirror for use in medical diagnosis
06/23/1981US4274288 Method for measuring the depth of surface flaws
06/17/1981EP0030458A2 Transducer drive and control in ultrasound imaging systems
06/16/1981US4272991 Scanning method and apparatus
06/09/1981US4271842 Apparatus and method for providing multiple ultrasonic sector image displays
06/09/1981US4271707 Received signal encoding and correlating system
06/09/1981US4271706 Ultrasonic scanner
06/09/1981US4271705 Method and device for generating acoustic pulses
06/02/1981US4271490 Ultrasonic detection system
06/02/1981US4271412 Range tracker utilizing spectral analysis
06/02/1981US4270546 Device for ultrasonic examination of biological structures
06/02/1981CA1102441A1 Method and apparatus for measuring the height of filling material on a surface, such as within a container
06/02/1981CA1102440A1 Circuit arrangement for ultrasonic burglar security systems operating in accordance with the doppler principle
05/1981
05/26/1981US4270191 Doppler current meter for use at great depths
05/20/1981EP0028895A1 Method and apparatus for shaping and aiming narrow beams
05/12/1981US4267584 Permutating analog shift register variable delay system
05/12/1981CA1101110A1 Electronic intruder detection system
05/05/1981US4265126 Measurement of true blood velocity by an ultrasound system
05/05/1981US4265121 High resolution ultrasound diagnostic apparatus
04/1981
04/29/1981EP0027618A2 Device for ultrasonic scanning
04/28/1981US4264440 Washbox with conveyor discharge
04/28/1981CA1100223A1 Fluid operated seismic generator
04/14/1981US4262344 Side looking sonar beam forming utilizing the chirp Z-transform
04/14/1981CA1099384A1 Circuit arrangement for determining physical parameters of flowing media by the ultrasonic method
04/14/1981CA1099382A1 Ultrasound imaging system with improved scan conversion
04/08/1981EP0026385A1 Ultrasonic space surveillance system according to the pulse-echo method
04/07/1981US4260980 Blind spot detector for vehicles
04/07/1981US4259870 Doppler method of measuring flow
03/1981
03/31/1981US4259734 Fine-resolution, water-depth measuring system
03/31/1981US4258575 Ultrasonic imaging apparatus operating according to the impulse-echo method
03/31/1981US4258574 Method and apparatus for ultrasonic imaging using a line source and a linear receiver array
03/31/1981CA1098612A1 Real-time ultrasonic imaging system
03/24/1981US4257278 Quantitative volume blood flow measurement by an ultrasound imaging system featuring a Doppler modality
03/24/1981US4257271 Selectable delay system
03/24/1981US4257270 Ultrasonic imaging apparatus
03/24/1981US4257256 Ultrasonic cross-sectional imaging apparatus
03/17/1981CA1097789A1 Apparatus for ultrasonic measurement
03/10/1981US4255800 Method and apparatus for locating underwater objects
03/10/1981US4254662 Multiple acoustic beamformer step scanner
03/03/1981US4254484 Device for the determination of a ship in dock at the time of docking
03/03/1981US4254482 Echo location system which provides for measuring liquid level and flow rate and flow volume of flowing liquids
03/03/1981US4254478 Measurement of distance using ultrasonic signals
02/1981
02/25/1981EP0024262A1 Electroacoustic signalisation and submarine identification device of a ship
02/24/1981US4253165 Apparatus for controlling an automatic angling machine connected to an echo sounder
02/24/1981US4252025 Ultrasonic diagnostic apparatus
02/24/1981US4252024 Flaw detection, characterization and study
02/24/1981US4252022 Detection, characterization and studying of flaws in work by acoustic imaging
02/19/1981WO1981000456A1 Method and device for measuring distances
02/17/1981US4251779 Frequency synthesizer apparatus and method in ultrasonic imaging
02/17/1981CA1096032A1 Determination of dimensional characteristics of the submerged part of icebergs
02/17/1981CA1095865A1 Graphic recording system
02/05/1981WO1981000198A1 Apparatus for ultrasonic imaging of faults
02/03/1981US4248702 Stratifier discharge control
02/03/1981US4248085 Measurement of relative velocities
02/03/1981CA1095161A1 Method and apparatus for locating underwater objects
01/1981
01/28/1981EP0022966A2 Ultrasonic diagnosis apparatus
01/27/1981US4247924 Proximity indicating equipment
01/27/1981US4247923 Method and apparatus for detecting the location of a marine pipeline or cable
01/27/1981US4246792 Self-contained ultrasonic scanner
01/13/1981US4244226 Distance measuring apparatus and a differential pressure transmitter utilizing the same
01/13/1981CA1093674A1 Ultrasonic beam scanning
01/13/1981CA1093673A1 Simultaneous display of compound and simple ultrasound scans
01/07/1981EP0021966A1 Ultrasonic-radar printer
01/06/1981US4244036 Electronic stabilization for displaced phase center systems
01/06/1981US4244026 Velocity measuring correlation sonar
01/06/1981US4242912 Method and apparatus for producing cross-sectional images using ultrasound
12/1980
12/30/1980US4242743 Intrusion detection method and apparatus
12/30/1980US4241611 Ultrasonic diagnostic transducer assembly and system
12/30/1980US4241610 Ultrasonic imaging system utilizing dynamic and pseudo-dynamic focusing
12/30/1980US4241608 Ultrasonic scanner
12/30/1980CA1092697A1 Underwater inspection and communication apparatus
12/23/1980US4241430 Method and apparatus for determining the length of tubular members
12/23/1980US4240295 Ultrasonic diagnosing apparatus
12/16/1980US4240152 Object indicator for moving vehicles
12/10/1980EP0019793A2 Method for determining the velocity of moving material, especially in the body, and device for this determination and for displaying parts of the body
12/09/1980USRE30443 Real-time ultrasonic imaging apparatus
12/09/1980US4237902 Ultrasonic diagnosing apparatus
12/09/1980US4237737 Ultrasonic imaging system
12/09/1980CA1091337A1 Lens system for acoustical imaging
12/02/1980CA1090914A1 Devices for probing by ultrasonic radiation
11/1980
11/25/1980US4236221 Scan converter
11/18/1980US4234941 Verbal read-out depth sounding system
11/18/1980US4234940 Ultrasound transmitting or receiving apparatus
11/18/1980CA1089973A1 Apparatus for the ultrasonic examination of bodies having non-planar surfaces
11/12/1980EP0018376A1 A method for investigating an anchored rod-like body having an accessible end, and apparatus for carrying out the method
11/04/1980US4232380 Underwater mapping apparatus and method
11/04/1980US4232286 Apparatus to indicate the spacing between a vehicle and a metal article
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