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US20120236689 Acoustic transducers for underwater navigation and communication  
Methods and transducers for producing acoustical signals having a spiral wavefront with omnidirectional magnitude and a phase that varies with angle and transducers for producing broadband...
US20140334267 NONLINEAR DYNAMIC FOCUSING CONTROL METHOD  
A nonlinear dynamic focusing control method includes: (1) using a minimum length in a scan line having the minimum length and a maximum length as an initial location and assigning a focal point on...
US20140269206 Ultrasound Transducer with Differential Mode Signaling  
Rather than using a coaxial cable, a twisted pair of wires is provided for each element-to-beamformer connection. Differential mode signals are transmitted between the transducer element and the...
US20100309751 SONAR SYSTEM AND PROCESS  
A sonar system and method of use capable of discriminating a direct acoustic signal present at 60 dB or more above the acoustic echo signal.
US20090175127 MULTIBEAM SOUNDER  
The sounder according to the invention comprises two transmit-receive antennas (1, 10) whose respective axes are off-target toward the front, in the direction of movement of the platform, these...
US20130051178 RESONANTLY AMPLIFIED SHEAR WAVES  
Apparatus and methods for generating resonantly amplified ultrasound shear waves in biological tissue. The apparatus comprises a plurality of transducer elements and a controller for controlling...
US20120300592 SENDER TRANSDUCER FOR WIRELESS POWER TRANSFER  
A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender...
US20140221839 TRANSFORMER-BASED MULTIPLEXER FOR ULTRASOUND IMAGING SYSTEM AND METHOD  
A low-loss high-voltage multiplexer is implemented using a transformer that is connected to one transmitter, one receiver and transducer elements. At least one primary winding is magnetically...
US20150138924 ACOUSTIC FRACTURING OF ROCK FORMATIONS  
In various implementations, a method for stimulating a downhole rock formation may include propagating pressure waves into the downhole rock formation and deforming the downhole rock formation via...
US20130194895 ULTRASOUND PROBING DEVICE, METHOD OF CONTROLLING TRANSDUCERS OF AN ULTRASOUND PROBE AND CORRESPONDING COMPUTER PROGRAM  
An ultrasound probing device including: a box; a locating mechanism to provide a position of the box in relation to a reference frame associated with an object to be examined; a mechanism to...
US20150085617 ULTRASOUND TRANSDUCER ARRAYS WITH VARIABLE PATCH GEOMETRIES  
A two dimensional ultrasonic array transducer receives echo signals from increasing depths of a volumetric region. The 2D array is configured into patches of elements which are processed by a...
US20090201763 Airborne Laser-Acoustic Mine Detection System  
A system and method is provided for using acoustical pulses generated from an airborne laser source to locate objects under water. An array of acoustic sensors, such as passive sonobuoys at the...
US20130294201 ULTRA WIDE BANDWIDTH TRANSDUCER WITH DUAL ELECTRODE  
Wide bandwidth piezoelectric micromachined ultrasonic transducers (pMUTs), pMUT arrays and systems having wide bandwidth pMUT arrays are described herein. For example, a piezoelectric...
US20120163129 Acoustic Transducer Chip  
An array of acoustic transducing unit cells configured with an acoustic focus or a beam steering orientation. A variety of time delays between consecutively coupled acoustic transducing unit cells...
US20140334266 Ultrasound Probe with Dynamic Focus and Associated Systems and Methods  
Exemplary ultrasound probes with sub-aperture processing capable of dynamic focus are provided that generally include an array of transducer elements that form a sub-aperture in the ultrasound...
US20100080085 FORCED ACOUSTIC DIPOLE AND FORCED ACOUSTIC MULTIPOLE ARRAY USING THE SAME  
Provided is a forced acoustic dipole capable of regulating phases and acoustic pressures of first and second acoustic signals output from first and second pole speakers to freely steer the...
US20130182883 SOUND REPRODUCTION DEVICE  
A sound reproduction device includes a superdirective speaker having a first surface, and an attachment part having a second surface opposed to the first surface. The first surface has a convex...
US20080219098 Acoustic Waveguide Plate With Nonsolid Cores  
An acoustic (sound or ultrasound) wave transmitter having a plurality of waveguides is described, and a method of making such a transmitter is described. Each waveguide may have a cladded core....
US20150213791 OSCILLATORS FOR WIRELESS POWER TRANSFER  
A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender...
US20150213792 SUB-APERTURES FOR WIRELESS POWER TRANSFER  
A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender...
US20120250463 GUIDING SOUND GENERATING APPARATUS AND NON-TRANSITORY COMPUTER READABLE MEDIUM  
A guiding sound generating apparatus which generates a guiding sound for guidance from a present location to a destination, the apparatus having a sound source, a variable sound-source attribute...
US20150192673 Ultrasonic Sensor Arrangement Comprising an Ultrasonic Sensor in the Radiator Grill, Motor Vehicle and Corresponding Method  
The invention relates to an ultrasonic sensor arrangement (2) for a motor vehicle (1), comprising a trim element (3), in particular a bumper, comprising a radiator grill (4), and at least one...
US20120250454 METHOD AND SYSTEM FOR SHAPING A CMUT MEMBRANE  
The present disclosure is directed at a method and system for shaping a membrane a capacitive micromachined ultrasonic transducer, or CMUT. A bias voltage is asymmetrically applied to a membrane...
US20070014190 Multi-level pulser for an ultrasound system  
A multi-level pulser for an ultrasound system is provided that receives a reference voltage input signal, a shading signal, and a control signal. The pulser produces an output signal for driving a...
US20130201798 IMAGING TRANSDUCER ARRAY  
An imaging transducer (302) includes a plurality of transducer elements (404, 604, 704, 804) arranged with respect to each other in an array along an long axis of the transducer, wherein an...
US20120092963 PROJECTILE FOR FOCUSING A KINETIC PULSE ARRAY  
The present disclosure relates to a method and system for finding and physically altering underground targets. Multiple projectiles are dispersed into the ground and determine their spatial...
US20080316864 SPRING BASED FINE ACOUSTIC WAVEGUIDE  
A fine acoustic waveguide comprising an inner spring. The inner spring provides stability to the acoustic waveguide and increases the manufacturing yield. The disclosed methods further comprise...
US20120186422 NEUTRALIZATION OF A TARGET WITH AN ACOUSTIC WAVE  
An embodiment of an apparatus includes a transducer array and a controller that is operable to cause the transducer array to generate a signal having a frequency, and to direct the signal toward...
US20150214765 FOCUS CONTROL FOR WIRELESS POWER TRANSFER  
A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender...
US20080125660 METHOD AND DEVICE FOR TRANSMISSION OF WIDE-BEAM IN AN ULTRASONIC DIAGNOSTIC SYSTEM  
A method and device for transmission of wide beam in ultrasonic diagnostic systems is disclosed. The method comprises: dividing an aperture of an ultrasonic probe into N sub-apertures; laterally...
US20120106299 MULTI FREQUENCY 2D PHASED ARRAY TRANSDUCER  
Improved two-dimensional planar array transducer and beamformer apparatus and methods. In one embodiment, the two-dimensional planar array transducer is capable of simultaneously or sequentially...
US20150198733 TRANSDUCER ASSEMBLY  
A petroleum production well ultrasound logging tool is provided comprising a cylindrical main body having a lower end holding a sideways monitoring transducer assembly comprising a ring-shaped...
US20150138925 ULTRASOUND BEAMFORMER WITH INDIVIDUAL ARRAY ELEMENT MULTIPLEXERS  
An ultrasound beamformer may include an array of ultrasound transducer elements. Multiple signal transmitters may each generate an ultrasound signal that is different from the ultrasound signal...
US20140133270 Ultrasound Transmission Circuit and Time Delay Calibration Method Thereof  
An ultrasound transmission circuit comprises a pulse generating circuit, a feedback circuit and a processing circuit. The feedback circuit outputs a trigger signal according to a first pulse...
US20120093344 OPTIMAL MODAL BEAMFORMER FOR SENSOR ARRAYS  
A method of forming a beampattern in a beamformer of the type in which the beamformer receives input signals from a sensor array, decomposes the input signals into the spherical harmonics domain,...
US20090274006 METHOD AND SYSTEM FOR ACOUSTIC IMAGING  
The invention relates to an imaging method and system for providing acoustic images of a surface and more particularly, but not exclusively, to acoustic imaging of a surface within a confined...
US20130279297 ORIENTATION OF AN ULTRASONIC SIGNAL  
A system and method for orientation of an ultrasonic signal includes at least two emitters in a mobile device that includes an orientation sensor that can determine a device orientation. A...
US20080031094 Methods and apparatus for treating samples with acoustic energy  
This invention relates to systems and methods for applying acoustic energy to a sample. According to one aspect of the invention, a system comprises a housing, a chamber for receiving the sample,...
US20050018540 Integrated portable ultrasound imaging system  
A multi-dimensional beamforming device that performs consecutive one-dimensional operations. For example, beamsteering for a two-dimensional array can be include a projection of a beam onto each...
US20150161982 METHOD AND SYSTEM FOR ACOUSTICALLY TREATING MATERIAL  
Methods and systems for acoustically treating material are described. Acoustic energy is emitted into a waveguide having a wall with a shape that tapers away from the acoustic source. The wall may...
US20100124150 SYSTEMS AND METHODS FOR ACOUSTIC BEAMFORMING USING DISCRETE OR CONTINUOUS SPEAKER ARRAYS  
In various embodiments, the invention pertains to systems for acoustic beamforming that include one or more speaker membranes, such as, for example, a continuous ribbon membrane, and several...
US20130294202 MULTI-FREQUENCY ULTRA WIDE BANDWIDTH TRANSDUCER  
Piezoelectric micromachined ultrasonic transducer (pMUT) arrays and techniques for frequency shaping in pMUT arrays are described, for example to achieve both high frequency and low frequency...
US20120243367 Ultrasonic Signal Processor for a Hand Held Ultrasonic Diagnostic Instrument  
A hand held ultrasonic instrument is provided in a portable unit which performs both B mode and Doppler imaging. The instrument includes a transducer array mounted in a hand-held enclosure, with...
US20150168554 FRIEND OR FOE IDENTIFICATION SYSTEM AND METHOD  
There are provided methods and systems for producing a wave-beam having substantially constant lateral extent over a desired range of distances, and interrogation and response system and methods...
US20140269208 PORTABLE ELECTRONIC DEVICE DIRECTED AUDIO TARGETED USER SYSTEM AND METHOD  
A computationally implemented system and method that is designed to, but is not limited to: electronically conditioning one or more information signals accessed at least in part through one or...
US20140269207 Portable Electronic Device Directed Audio Targeted User System and Method  
A computationally implemented system and method that is designed to, but is not limited to: electronically conditioning one or more information signals accessed at least in part through one or...
US20110032800 PHASED ARRAY ULTRASONIC CONTACT TRANSDUCER, WITH A FLEXIBLE WEDGE AND A PROFILOMETER  
Phased array ultrasonic contact transducer, with a flexible wedge and a profilometer. This transducer applies to the non-destructive monitoring of an object and comprises: a set of elements that...
US20110085421 ELECTRONIC BAFFLING OF SENSOR ARRAYS  
A method and system is described for reducing unwanted noise components/interfering targets detected through an ambiguous beam-steer direction, such as the ambiguous ‘back-lobe’ of a sensor array....
US20120212618 METHOD OF ULTRASONIC BEAMFORMING AND APPARATUS THEREFOR  
An ultrasonic beamforming method is provided. The ultrasonic beamforming method includes dividing an input ultrasonic signal into a plurality of regions in an observation space, calculating a...
US20140230567 ACQUATIC VELOCITY SCANNING APPARATUS AND METHODS  
Apparatus and methods for velocity scanning in, e.g., bodies of water. In one embodiment, a scanned one-dimensional transducer array Doppler sonar arrangement is used to remotely measure both...

Matches 1 - 50 out of 86 1 2 >