Patents Examined by Daniel Pihulic
  • Patent number: 10497748
    Abstract: An ultrasonic sensor pixel includes a substrate, a piezoelectric micromechanical ultrasonic transducer (PMUT) and a sensor pixel circuit. The PMUT includes a piezoelectric layer stack including a piezoelectric layer disposed over a cavity, the cavity being disposed between the piezoelectric layer stack and the substrate, a reference electrode disposed between the piezoelectric layer and the cavity, and one or both of a receive electrode and a transmit electrode disposed on or proximate to a first surface of the piezoelectric layer, the first surface being opposite from the cavity. The sensor pixel circuit is electrically coupled with one or more of the reference electrode, the receive electrode and the transmit electrode and the PMUT and the sensor pixel circuit are integrated with the sensor pixel circuit on the substrate.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: December 3, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Hrishikesh Vijaykumar Panchawagh, Suryaprakash Ganti, Kostadin Dimitrov Djordjev, David William Burns, Timothy Alan Dickinson, Donald William Kidwell, Jr., Ravindra Vaman Shenoy, Jon Bradley Lasiter, Hao-Yen Tang, Yipeng Lu
  • Patent number: 10488502
    Abstract: An ultrasound probe and method of forming an ultrasound probe are provided. The ultrasound probe comprises a two-dimensional (2D) transducer assembly having transducer elements arranged in rows and columns. The transducer elements have front and rear surfaces. The front surface is configured to transmit and receive ultrasound signals to and from an object of interest. A thin film flex circuit extends along the rear surface of the transducer assembly. The flex circuit has conductive traces arranged in layers and enclosed within a common dielectric layer. The dielectric layer has a homogeneous composition surrounding the layers of the conductive traces. The conductive traces are electrically interconnected to the corresponding transducer elements.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: November 26, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Reinhold Bruestle, Thomas Rittenschober, Manuel Schoenauer, Andreas Kremsl, Rainer Schröder
  • Patent number: 10477785
    Abstract: Proactively identifying and interdicting transport of commodities associated with illicit nuclear materials and nuclear weapons shielded by high Z-number materials, such as lead, can help ensure effective nuclear nonproliferation. In an embodiment, a method for imaging an object on a surface includes exciting a surface with ultrasonic excitation from an ultrasonic transmitter having an ultrasonic transducer in contact with the surface. The method further includes imaging, at a processor, a two-dimensional representation of the object acoustically coupled to the surface based on the ultrasonic reflections received at an ultrasonic receiver via a receiving transducer in contact with the surface. This method can complement existing x-ray screening systems to increase the odds of detecting radiological materials.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: November 19, 2019
    Assignee: Northeastern University
    Inventors: Jose A. Martinez-Lorenzo, Yuri Alvarez Lopez
  • Patent number: 10481286
    Abstract: Disclosed are devices and methods for marine geophysical surveying. An example device may comprise a shell, a base plate, wherein the base plate is coupled to the shell, a driver disposed within the shell, an inner spring element disposed within the shell, wherein the inner spring element is coupled to the driver, wherein outer ends of the inner spring element are coupled to outer ends of the inner spring element at spring element junctions, an outer spring element disposed within the shell, wherein outer ends of the outer spring element are coupled to the spring element junctions, and a back mass disposed on the outer spring element.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: November 19, 2019
    Assignee: PGS Geophysical AS
    Inventor: Stig Rune Lennart Tenghamn
  • Patent number: 10481289
    Abstract: A downhole installation comprises: a first pipe layer 8, a second pipe layer 10 about the first pipe layer 8, an annulus 12 between the first pipe layer 8 and the second pipe layer, and a geological formation outside of the second pipe layer 10.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: November 19, 2019
    Assignee: STATOIL PETROLEUM AS
    Inventor: Ioan-Alexandru Merciu
  • Patent number: 10473751
    Abstract: A controller of a collaboration endpoint generates a primary audio signal for an ultrasonic source audio signal produced by a source audio speaker, a reference audio signal for the ultrasonic source audio signal, and, based on the reference audio signal, a predicted signal that is predictive of the primary audio signal. The controller produces a prediction error of the predicted signal by comparing the primary audio signal with the predicted signal and determines whether the prediction error is indicative of a motion of one or more persons near the collaboration endpoint.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: November 12, 2019
    Assignee: Cisco Technology, Inc.
    Inventor: Oystein Birkenes
  • Patent number: 10466353
    Abstract: A leaky-wave antenna for fluid environments includes a waveguide cavity defined by a waveguide wall. The waveguide cavity is filled with a waveguide fluid. The waveguide walls are made of either an anisotropic material that utilize one of orthotropic stiffness of the anisotropic material to control mode conversion, a band gap material to approximate an acoustically rigid boundary, and a combination of the two materials.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: November 5, 2019
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Jeffrey Rogers, Katherine Woolfe, Matthew David Guild, Theodore P. Martin, Christina Jeanne Naify, Charles Alan Rohde
  • Patent number: 10457303
    Abstract: Example implementations relate to receiving vibration notifications from vibration sensors. In example implementations, a subset of a plurality of vibration sensors from which vibration notifications are expected may be identified based on a position of a train along a track. The plurality of vibration sensors may be arranged in a predetermined order on the track. Whether vibration notifications have not been received from consecutive, with respect to the predetermined order, vibration sensors in the subset may be determined.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: October 29, 2019
    Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
    Inventors: Larry Schmidt, Satwant Kaur
  • Patent number: 10451718
    Abstract: An apparatus (402) includes an analog beamformer (414) that receives a set of analog RF signals. The set of analog RF signals are generated by a corresponding set of transducer elements (406) receiving ultrasound echo signals. The analog beamformer includes a delay network (416) with a set of phase shifting networks (506). Each phase shifting network of the set of phase shifting networks processes a different one of the analog RF signals of the set of analog RF signals. Each phase shifting network of the set of phase shifting networks adds a delay to the corresponding analog RF signal, producing a set of delayed analog RF signals that are aligned in time. The set of phase shifting networks does not use an inductive element to determine or add the delays. The analog beamformer further includes a summer (504) that sums the delayed analog RF signals, producing an analog beam sum.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: October 22, 2019
    Assignee: B-K Medical Aps
    Inventors: Jan P. Bagge, Nitsan Vardi, Henrik Jensen
  • Patent number: 10451733
    Abstract: An ultrasound imaging system (102) includes a transducer array (108) with a two-dimensional array of rows (110) of transducer elements (114). The transducer elements of each row extend along a long axis (116). The rows are parallel to each other. The transducer array includes a non-rectangular set of active transducer elements. The ultrasound imaging system further includes transmit circuitry (118) that actuates the transducer elements to transmit an ultrasound signal. The ultrasound imaging system further includes receive circuitry (120) that receives echoes produced in response to an interaction between the ultrasound signal and a structure and received by the transducer elements. The ultrasound imaging system further includes a beamformer that processes the echoes and generates one or more scan lines indicative of the structure.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: October 22, 2019
    Assignee: Sound Technology Inc.
    Inventors: Christopher J Beers, Joseph S. Conklin, Dean A. McHenry, Russell W. Woods, Henrik Jensen
  • Patent number: 10451759
    Abstract: Disclosed are control systems for marine vibrators. An example method may comprise recording a signal at a seismic sensor; running an iterative learning control characterization for a marine vibrator on the signal from the seismic sensor; measuring movement of an outer shell of the marine vibrator using a motion sensor to obtain a motion sensor signal; and controlling the marine vibrator using the motion sensor signal as a reference signal.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: October 22, 2019
    Assignee: PGS Geophysical AS
    Inventor: Stig Rune Lennart Tenghamn
  • Patent number: 10444350
    Abstract: An obstacle monitoring system includes a first transducer that obtains a first distance measurement to an obstacle using a first linear frequency modulated (“LFM”) chirp. The system further includes a second transducer, able to operate concurrently with the first transducer, that obtains a second distance measurement to the obstacle using a second LFM chirp. The second LFM chirp has an inverted slope or shifted center frequency compared to the first LFM chirp. The system further includes a controller that processes the first and second distance measurements to determine a motion-compensated distance measurement to the obstacle.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: October 15, 2019
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Marek Hustava, Tomas Suchy, Miroslav Kassa
  • Patent number: 10446132
    Abstract: The disclosed embodiments relate to a portable ultrasound device. Specifically, the disclosed embodiments relate to an acoustic lens positioned at an ultrasound probe. The acoustic lens may be configured for impedance matching and signal attenuation. In one embodiment, ultrasound signal attenuation is provided by forming an acoustic lens as a solid admixture of signal attenuating particles in a polymer matrix.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: October 15, 2019
    Assignee: Butterfly Network, Inc.
    Inventors: Susan A. Alie, Jaime Scott Zahorian, Christopher Thomas McNulty, Paul Francis Cristman
  • Patent number: 10444354
    Abstract: Techniques are disclosed for systems and methods to provide sonar systems for mobile structures. A sonar system includes a sonar transducer assembly including a sonar transducer, a sonar receiver configured to receive acoustic returns from the sonar transducer and convert the acoustic returns into arrays of time differentiated sonar data samples, and a logic device adapted to communicate with the sonar receiver. The logic device is configured to receive the arrays of the time differentiated sonar data samples from the sonar receiver and process the received arrays to enhance the time differentiated sonar data samples substantially without enhancing sonar artifacts in the time differentiated sonar data samples Processed sonar data and/or resulting imagery may be displayed to a user and/or used to adjust a steering actuator, a propulsion system thrust, and/or other operational systems of the sonar transducer assembly and/or a mobile structure.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: October 15, 2019
    Assignee: FLIR SYSTEMS, INC.
    Inventors: Paul Stokes, Philip Webb
  • Patent number: 10444335
    Abstract: Methods and systems of determining whether an object is alive, and therefore part of a live individual, are described. An object having an outer surface (e.g. a friction-ridge surface of a finger) and internal parts (e.g. tissue layer, papillae, blood vessels, fat, muscle, nail and bone) is scanned by a system having a transmitter, receiver and computer. One such system has a substantially planar piezoelectric transmit-layer, an ultrasonic receiver array having a plurality of receivers, and a platen. The transmit layer is caused to produce an ultrasound plane-wave traveling toward the object residing on the platen. Using the ultrasonic receiver, ultrasonic energy that has been reflected from the object is detected. The detected ultrasonic energy is analyzed to provide an analysis result, and the analysis result is compared to a template.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: October 15, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Jack Conway Kitchens, II, John Keith Schneider, Stephen Michael Gojevic, Timothy Alan Dickinson, Philip John Schneider, Evan Michael Breloff, Evan Robert Hildreth
  • Patent number: 10445547
    Abstract: An electronic device including an array of ultrasonic transducers for generating and receiving ultrasonic signals, and an acoustic coupling layer overlying the array of ultrasonic transducers, where the ultrasonic signals are propagated through the acoustic coupling layer.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: October 15, 2019
    Assignee: InvenSense, Inc.
    Inventor: Julius Ming-Lin Tsai
  • Patent number: 10444336
    Abstract: Aspects of the present disclosure provide a first apparatus configured to transmit a first signal having a first frequency to a second apparatus, receive, from the second apparatus, a second signal having a second frequency responsive to the first signal, determine a latency associated with the transmitted first signal and received second signal and, determine a distance between the first apparatus and the second apparatus based, at least in part, on the determined latencies. According to an example, the first apparatus further determines a direction of the second apparatus relative to the first apparatus. According to an example, at least one of the first signal or second signal comprises an ultrasonic or high-frequency signal.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: October 15, 2019
    Assignee: BOSE CORPORATION
    Inventors: Rameshwar Sundaresan, Brian S. Lingard, Peter J. Gjeltema
  • Patent number: 10441975
    Abstract: A Piezoelectric Micromachined Ultrasonic Transducer (PMUT) device is provided. The PMUT includes a substrate and an edge support structure connected to the substrate. A membrane is connected to the edge support structure such that a cavity is defined between the membrane and the substrate, where the membrane configured to allow movement at ultrasonic frequencies. The membrane comprises a piezoelectric layer and first and second electrodes coupled to opposing sides of the piezoelectric layer. For operation in a Capacitive Micromachined Ultrasonic Transducer (CMUT) mode, a third electrode is disposed on the substrate and separated by an air gap in the cavity from the second electrode. Also provided are an integrated MEMS array, a method for operating an array of PMUT/CMUT dual-mode devices, and a PMUT/CMUT dual-mode device.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: October 15, 2019
    Assignee: InvenSense, Inc.
    Inventors: Nikhil Apte, Renata Melamud Berger, Michael Daneman
  • Patent number: 10444349
    Abstract: Techniques are disclosed for systems and methods to provide waypoint sharing with respect to sonar imagery for mobile structures. A waypoint sharing system includes a portable electronic device with a display, a communications module, and a logic device configured to receive a waypoint database from a sonar system user interface or a waypoint server over a wireless communication link, receive user input to adjust at least a portion of the waypoint database, and provide the adjusted waypoint database to the sonar system user interface or the waypoint server over the wireless communication link. The sonar system user interface is configured to provide a waypoint database to the portable electronic device or the waypoint server over the wireless communication ink, receive the adjusted waypoint database from the device or the server over the wireless communication link, and render at least a portion of the adjusted waypoint database on a display.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: October 15, 2019
    Assignee: FLIR BELGIUM BVBA
    Inventor: Christopher Daniel Gatland
  • Patent number: 10436887
    Abstract: Techniques are disclosed for systems and methods to provide transmission signal shaping for transmission signal-based sensor systems, such as radar and/or sonar sensor systems. A low noise signal shaping transmitter includes a digital to analog converter configured to convert a digital shaping control signal to an analog shaping control signal, a signal shaping circuit configured to convert the analog shaping control signal into a shaped voltage, and a power amplifier configured to provide a shaped transmission signal based on the shaped voltage and a digital transmission control signal. Each element of the transmitter may be formed from relatively slow switching analog and/or digital circuitry components. Resulting shaped transmission signals may be used to excite radar antennas, sonar transducers, sound cells, and/or other elements of sensor systems.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: October 8, 2019
    Assignee: FLIR SYSTEMS, INC.
    Inventors: Paul Stokes, David Wellcome