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RE40456 Acoustic wave imaging apparatus and method  
An acoustic imaging apparatus and method that achieves desired delays with coded signals. Linear, curved linear and sector scanning is provided in 1-D arrays and planar, curved planar and sector...
7289390 Ultrasonic transmitting/receiving apparatus and scanning sonar employing same  
An ultrasonic apparatus is disclosed that includes a transducer having a plurality of transducer elements, a controller operatively connected to the transducer and driving the transducer elements...
7280435 Switching circuitry for reconfigurable arrays of sensor elements  
A device comprising an array of sensors that are reconfigurable by means of a switching network. The sensors may be optical, thermal or pressure sensors or ultrasonic transducers. More...
7274622 Nonlinear techniques for pressure vector acoustic sensor array synthesis  
The present invention presents a method for use with an acoustic sensor array comprised of a number of pressure-vector sensors capable of sensing the acoustic scalar field and acoustic vector field...
7257051 Integrated interface electronics for reconfigurable sensor array  
An integrated switch matrix for reconfiguring subelements of a mosaic sensor array to form elements. The configuration of the switch matrix is fully programmable. The switch matrix includes access...
6926671 Ultrasonic imaging apparatus and method  
An ultrasonic imaging apparatus and method combines dynamically focused reception and coded transmission/reception technologies by inexpensive circuitry. A receive aperture is divided into smaller...
6445646 Signal processing method and apparatus, and sonar systems  
Signals entered from receiving transducer elements of 160 channels are multiplexed into 10 signal lines by 10 multiplexers. Each of 10 A/D converters converts the signals of 16 channels from analog...
6421299 Single-transmit, dual-receive sonar  
An apparatus and method for scanning a body of water for fish and other underwater articles with a sonar depth finder of a type having a transducer that can transmit an acoustic wave and receive...
6310831 Method and system for aperture adjustment in steered phased array transducer systems  
A method and system for compensating for steering anomalies by adjusting aperture in steered phased array transducer systems adjusts the aperture of a transducer array to effectively compensate for...
6285628 Swept transit beam bathymetric sonar  
The invention pertains a bathymetric sonar system involving a single swept transmit beam projector system which compensates for ship attitude and positioning changes. A sonar transducer array has a...
6181643 Interferometer with a single projector array and a single receiver array  
The interferometer, which is preferably in the form of a sonar, can have a single projector array and a single receiver array. The projector array comprises a first subset of projector elements...
6138513 Method and apparatus for fast acquisition of ultrasound images  
New apodization functions providing an effective rejection of side lobe amplitude level within wide range of beam steering angles are described in this invention. A central amplitude apodization...
6046961 Multi-layer tiled array  
A sonar sensor array having a multi-layer tiling arrangement for the indiual elements that increases surface area available for each element while maintaining the inter-element spacing required to...
5642329 Method for doubling the resolving power of a sonar array and a sonar array for implementing the same  
A sonar array which has a resolving power which is double that of convental sonar arrays includes an array of hydrophones each having an acoustic center, a first projector positioned proximate a...
5557583 Transducer to generate phase-encoded wavefields  
A transducer capable of generating a phase-encoded wavefield is described. The encoded phase is related to the angular co-ordinates of direction of transmission. By decoding the phase values of the...
5548561 Ultrasound image enhancement using beam-nulling  
In a digital ultrasound imaging system, artifacts due to spurious ultrasound reflections from a highly reflective object outside the region of interest are reduced in magnitude by apparatus...
5540098 Transfer device  
A transfer device an ultrasonic sensor having an oscillating section for oscillating an ultrasonic beam toward wafers which are horizontally arranged in a carrier and a receiving section for...
5537380 Sonar system having an interactive sonar viewing apparatus and method of configuring same  
A sonar system includes an interactive sonar viewing apparatus for facilitating operator selection of a variety of features. The interactive sonar viewing apparatus can include a screen display for...
5301168 Ultrasonic transducer system  
An ultrasonic transducer is provided which has multiple apertures in at least the elevation direction, and preferably in both the elevation and azimuth direction. Each aperture has a selected focal...
5268877 Digital beamforming and filtering circuit  
A beamformer system is disclosed which includes an array of sensors such as ydrophones which produce signals from which information relating to a target is to be determined. The beamformer system...
5263483 Beam former for ultrasonic diagnostic apparatus  
A beam former for a ultrasonic diagnostic apparatus is arranged to have low-bit analog-to-digital converters and enables to obtain an excellent echo signal from blood flow. The beam former further...
5251186 Preprocessor and adaptive beamformer for linear-frequency modulation active signals  
A device is provided for processing an echo received by an array of N receiving elements from a target at range R ensonified by an LFM signal of bandwidth B transmitted for a duration T. The device...
5241515 Method and device for determining variations in the position of a movable object by means of ultrasound  
Variations in the position of a part of a living object within the measurement space of magnetic resonance apparatus are determined by an ultrasound device in which bursts of ultrasonic waves...
5239515 Error-eliminating rapid ultrasonic firing  
A system for producing reliable navigation data for a mobile vehicle, such as a robot, combines multiple range samples to increase the "confidence" of the algorithm in the existence of an obstacle....
5177711 Object detecting switch device  
This switch device for detecting an object comprises a transducer for emitting and receiving ultrasonic signals to and from an object, a transmitter for driving the transducer, a receiver for...
5172343 Aberration correction using beam data from a phased array ultrasonic scanner  
A PASS ultrasonic system performs a scan in which phase errors due to aberrations in the sound media are corrected prior to the acquisition of each beam. Phase errors are measured by cross...
5140558 Focused ultrasound imaging system and method  
The train of echoes received in an ultrasound imaging system having an array of ultrasound transducers is shaped and/or focused by first and second programmable beam focusing modules (16-24) in a...
5132939 Low transient switching system  
This invention relates to low transient switching apparatus, and more particularly to switching arrays of low transient switching circuits which are adapted for use to substantially continuously...
5128903 Ultrasound apparatus for the virtual diminution of the array division of a connectable transducer array  
An ultrasound apparatus has a first group of transmission and reception channels that are respectively allocated to elementary transducer in the active aperture of a connectable transducer array....
5115416 Active transducer assembly for a phased array depth sounder  
A phased array acoustic transducer apparatus has a controller and an array of ultrasonic transducers mounted in a water tight housing. Also included in the water tight housing are a transmitter...
5063541 Beam forming method and apparatus therefor in ultrasonic imaging system  
A beam former method and an apparatus therefor in an ultrasonic imaging system, in which switching of delay elements is performed by means of delay switches in a section in which no ultrasonic wave...
5047993 Detection and classification for multi-beam sonar systems  
An array of sonar transmitting and receiving transducers are so physically rranged and their signal voltage so combined as to form beams pointing to various points of the compass. In this invention...
5014712 Coded excitation for transmission dynamic focusing of vibratory energy beam  
A method for imaging a sample with a beam of vibratory energy from an array of transducers excites the array with successive ones of a plurality M of coded excitation signal sets with each set...
5008862 Object detecting switch device  
A switch device is disclosed for detecting an object which comprises a transducer for emitting and receiving ultrasonic signals to and from an object, a transmitter for driving the transducer, a...
5001678 System for detecting surrounding environmental conditions using a multiple number of incoming signals  
A detection system forms a plurality of reception beams successively in angular directions by receiving incoming signals from various directions in a manner that the Doppler effect is produced to...
4980870 Array compensating beamformer  
A compensating beamformer which requires orders of magnitude fewer calculations that prior art methods. A compensating beamformer is provided which comprises a plurality of sensing elements and a...
4951268 Method for the sonar classification of underwater objects, notably moored mines  
In a sonar used to determine the characteristics of the underwater mines, the emission diagram in the vertical plane is modified to obtain two main lobes separated by a central zero value. At...
4937767 Method and apparatus for adjusting the intensity profile of an ultrasound beam  
The intensity profile of an ultrasound beam in an ultrasound imaging system is adjusted by driving the individual piezoelectric crystals with drive signals having adjustable pulse durations. The...
4896304 Object detecting system using ultrasonic waves  
An object detecting system including an ultrasonic transducer element array including first to N-th ultrasonic transducer elements, a first means for intermittently supplying burst driving pulses...
4890267 Switch matrix  
A switch matrix for a transceiver of ultrasonic waves containing a configuration of electroacoustic transducer elements in which in succession proceeding over the arrangement a group of transducer...
4887246 Ultrasonic apparatus, system and method  
Ultrasonic apparatus for use in detecting an object having a transducer. The transducer has an array of at least one element coupled directly into air. The apparatus also includes a transmitter...
4841492 Apodization of ultrasound transmission  
An apodization attenuation circuit to achieve a selected percent Gaussian apodization of a focused ultrasound wavefront when transmitted from a linear or phased array. The circuit uses a string of...
4837754 Ultrasonic wave phase matching apparatus  
In the ultrasonic wave phase matching diagnostic apparatus described in the specification, an array of ultrasonic transducers is arranged to transmit ultrasonic waves to an object to be...
4829491 Phased-array equipment  
Phased-array apparatus has a number of ultrasonic transducer elements (E1 to E64) to which are associated delay line elements (M1, T1 to M64, T64, W1-1, W1-2, N1 to W16-1, W16-2, N16; W1 to W16;...
4817066 Transmitter/receiver for ultrasonic diagnostic system  
A transmitter/receiver for suppling a pulse power to a transducer and receiving a signal from the transducer comprises a parallel connection of a first circuit including a first switch element...
4815047 Synthetic focus annular array transducer  
Ultrasound imaging apparatus having an array of electro-acoustic transducer rings, means for exciting said transducer rings in sequence so as to cause them to transmit successive pulses of pressure...
4804963 Wide dynamic range digital receiver  
A wide dynamic range digital receiver for radar or sonar applications wherein the wide dynamic range is achieved by increasing the sampling rate of the received signals through the use of a special...
4796236 Architecture for ultrasonic imaging  
An ultrasonic imaging processing system includes transducers and means to generate in an analog fashion, in-phase and quadrature phase signals. These signals are converted to digital form and a...
4779242 Device for electronic focusing of ultrasonic waves  
A device for electronic focusing of ultrasonic waves in which the focusing means comprise a hierarchized assembly of elementary circuits each provided with a delay line connected in parallel with a...
4707813 Ultrasound apparatus permitting dynamic variation of the position of the reception focus  
An ultrasound apparatus permitting dynamic variation of the position of the reception focus of a prescribable number of ultrasound transducer elements has a reception channel including a time-delay...
Matches 1 - 50 out of 173 1 2 3 4 >