| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 367008000 | Acoustic holography | 16 |
| 20080232192 | Method and apparatus for Determining Vector Acoustic Intensity - A system and method for determining vector acoustic intensity fields using a spherical array of acoustic sensors, and a regularization technique. A mobile spherical array of a number of microphones that image the acoustic intensity vector throughout a large volume internal and external to the spherical array. | 09-25-2008 |
| 20110164466 | Reconstructing an Acoustic Field - Disclosed is a method of reconstructing a sound field. The method comprises receiving measured values of a first acoustic quantity measured at a set of measurement locations; computing a second acoustic quantity for a target location from a superposition of plane waves. The method comprises storing a set of representations of interpolations of respective functions, each function being a function of two or less input parameters; and computing comprises computing each of a set of correlation functions, each correlation function being indicative of a correlation of the plane waves at a first one of said measurement locations with the plane waves at a second location, as a linear combination of values obtained from the set of representations of interpolations. | 07-07-2011 |
| 20130223185 | HIGH FREQUENCY PIEZOELECTRIC CRYSTAL COMPOSITES, DEVICES, AND METHODS FOR MANUFACTURING THE SAME - The present invention generally relates to high frequency piezoelectric crystal composites, devices, and method for manufacturing the same. In adaptive embodiments an improved imaging device, particularly a medical imaging device or a distance imaging device, for high frequency (>20 MHz) applications involving an imaging transducer assembly is coupled to a signal imagery processor. Additionally, the proposed invention presents a system for photolithography based micro-machined piezoelectric crystal composites and their uses resulting in improved performance parameters. | 08-29-2013 |
| 20130258805 | METHODS AND SYSTEMS FOR PRODUCING COMPOUNDED ULTRASOUND IMAGES - Disclosed is a method for producing compounded ultrasound images by beamforming a first and a second low-resolution image using data from a first ultrasound emission, beamforming a third and a fourth low-resolution image using data from a second ultrasound emission, summing said first and said third low-resolution image creating a first high-resolution image and said second and said fourth low-resolution image creating a second high-resolution image, wherein the method further comprises computing a first envelope image for said first high-resolution image and a second envelope image for said second high-resolution image, and processing said first envelope image and said second envelope image creating in a first compounded high-resolution image. | 10-03-2013 |
| 20130301383 | PORTABLE ACOUSTIC HOLOGRAPHY SYSTEMS FOR THERAPEUTIC ULTRASOUND SOURCES AND ASSOCIATED DEVICES AND METHODS - The present technology relates generally to portable acoustic holography systems for therapeutic ultrasound sources, and associated devices and methods. In some embodiments, a method of characterizing an ultrasound source by acoustic holography includes the use of a transducer geometry characteristic, a transducer operation characteristic, and a holography system measurement characteristic. A control computer can be instructed to determine holography measurement parameters. Based on the holography measurement parameters, the method can include scanning a target surface to obtain a hologram. Waveform measurements at a plurality of points on the target surface can be captured. Finally, the method can include processing the measurements to reconstruct at least one characteristic of the ultrasound source. | 11-14-2013 |
| 20130336088 | OBJECT INFORMATION ACQUIRING APPARATUS AND CONTROL METHOD THEREOF - Provided is an object information acquiring apparatus generating image data inside an object on the basis of an acoustic wave propagating inside the object, which uses an object information acquiring apparatus having an acoustic detector receiving the acoustic wave, an object information distribution processor generating an object information distribution representing a property of inside of the object by using the acoustic wave, a reliability distribution generator generating a reliability distribution by using the object information distribution, a similarity distribution generator generating a similarity distribution indicating similarity between template data indicating a relation between a real image and an artifact in the image data, and the object information distribution, and a combination processor performing combination processing of the reliability distribution and the similarity distribution. | 12-19-2013 |
| 20130336089 | ULTRASONIC IMAGING APPARATUS FOR READING AND DECODING MACHINE-READABLE MATRIX SYMBOLS - There is provided an apparatus and method for reading matrix codes comprising an ultrasound transducer | 12-19-2013 |
| 20140204702 | TRANSFORMING A-SCAN DATA SAMPLES INTO A THREE-DIMENSIONAL SPACE FOR FACILITATING VISUALIZATION OF FLAWS - Various approaches are described for visualizing one-dimensional A-scan data samples in a three-dimensional space. Each of the data samples represents ultrasonic signals received from a test material. The data samples are transformed into the three-dimensional space as a geometric shape corresponding to a relative amount of ultrasonic energy reflected back from the test material. The data samples as transformed into the three-dimensional space with the geometric shapes rendered therein can be displayed. | 07-24-2014 |
| 20140211588 | ULTRASONIC HOLOGRAPHY IMAGING SYSTEM AND METHOD - An ultrasonic holography imaging system and method are provided. The ultrasonic holography imaging system includes an ultrasonic transducer array coupled to an analog processing section. The analog processing section is coupled to a digital processing section. The digital processing section generates digital signals to be converted by the analog processing section into analog signals that are transmitted to individual transceiver elements within the ultrasonic transducer array to cause separate ones of the individual transceiver elements to emit ultrasonic waveforms that are differentiated from each other by one or more parameters, including amplitude, frequency, and phase or modulation thereof. | 07-31-2014 |
| 20150078125 | ACOUSTICAL HOLOGRAPHY WITH MULTI-LEVEL SQUARE WAVE EXCITATION SIGNALS - Systems and methods are disclosed herein in which multi-level square wave excitation signals are used instead of or in addition to fully-analog excitation signals to drive an array of transceiver elements to create a sound field. Use of multi-level square wave excitation signals produces acceptable transceiver output with reduced complexity, cost, and/or power consumption as compared with use of fully-analog excitation signals. In addition, use of such signals facilitates system implementation using application-specific integrated circuits (ASICs) and is not as restricted in voltage level and speed. At the same time, the benefits and applications of fully-analog excitation signals (e.g., acoustic holography, beam superposition, signal-to-noise ratio (SNR) improvements, suppression of parasitic modes, increased material penetration, potential for coded pulsing algorithms and suppression of side lobes in ultrasonic field) can still be achieved with multi-level square wave excitation signals. | 03-19-2015 |
| 20160161325 | WIDE-BAND ACOUSTIC HOLOGRAPHY - A method of determining a property of a sound field from a plurality of measured sound field parameters, the method comprising: receiving a plurality of measured sound field parameters each indicative of a sound field parameter measured by a sensor of an array of sensors, the sensor being positioned at a measurement position; providing a model of a sound field, the model comprising a set of elementary waves and having associated with it a set of model parameters; computing, from the model, computed values of the sound field parameter at each of the measurement positions and as a function of said model parameters; determining a set of parameter values of the model parameters so as to reduce an error measure by performing an iterative minimization process including a plurality of iterations, the error measure comprising an error term operable to compare the computed and the measured sound field parameters; computing the property of the sound field from the determined set of model parameters. | 06-09-2016 |
| 367009000 | Seismic display | 5 |
| 20120243368 | Fracture Imaging Methods Employing Skeletonization of Seismic Emission Tomography Data - Disclosed herein are various embodiments of methods and systems for providing a graphical skeletonization representation of fractures and faults in a subsurface of the earth. According to some embodiments, as fracturing fluid is pumped into a target geologic formation through a well bore, and as the formation fractures or faults in response to the fracturing fluid being pumped under high pressure therein, seismic wavefronts are generated at points of fracture related to movement of a fluid pressure wave induced by fracturing or other fluids moving through the formation, or the extraction of fluids such as gas and/or oil from the formation, which are detected by surface and/or downhole sensors. Data corresponding to signals generated by the surface and/or downhole sensors are recorded and subsequently analyzed to determine in near real-time the locations of the fractures or faults using skeletonization data processing techniques and methods. | 09-27-2012 |
| 20130201787 | Methods, Systems and Devices for Near-Well Fracture Monitoring Using Tomographic Fracture Imaging Techniques - Described herein are various embodiments of methods and corresponding hardware and software configured to permit the vicinity around and/or near a well to be imaged, where the well is being subjected to, or has been subjected to, fracking operations. The methods and corresponding hardware and software permit the generation of images of near-well fractures or faults resulting from the fracking. | 08-08-2013 |
| 20130215712 | Method for Assessing the Effectiveness of Modifying Transmissive Networks of Natural Reservoirs - Described herein are various embodiments of methods and corresponding hardware and software that are configured to illuminate or image the permeability field around or near a well that is to be fracked, both prior to fracking and after various fracking stages. The methods and corresponding hardware and software disclosed herein permit the progress of the fracking operation to be monitored at different stages. | 08-22-2013 |
| 20130229891 | METHOD AND SYSTEM FOR IMAGE-GUIDED FAULT EXTRACTION FROM A FAULT-ENHANCED SEISMIC IMAGE - A system and method is provided for performing image-guided fault extraction from a fault-enhanced seismic image. The system divides three-dimensional fault-enhanced seismic images into a series of two-dimensional seismic image slices that can be selectively displayed and analyzed for fault surfaces. The system allows a user to select two or more fault surface points in a displayed image slice and identifies a fault path between the first fault surface point and the second fault surface that corresponds to a calculated at least cost path. | 09-05-2013 |
| 20130242693 | SEISMIC IMAGING SYSTEM USING A REVERSE TIME MIGRATION ALGORITHM - Provided is seismic imaging system, particularly, reverse-time migration for generating a real subsurface image from modeling parameters calculated by waveform inversion, etc. A seismic imaging system includes: a logarithmic back-propagation unit configured to back-propagate a ration of a logarithmic measured wavefield to modeling wavefield; a virtual source estimating unit configured to estimate virtual sources from a sources; and a first convolution unit configured to convolve the back-propagated measured data with the virtual sources and to output the results of the convolution. | 09-19-2013 |
