Testing, Monitoring, Or Calibrating Patents (Class 367/13)
  • Patent number: 10712720
    Abstract: A system adapted to provide alert signals to individuals or institutions and/or control signals to utilities control units to automatically stop the flow of gas, water, electricity, oil, etc., such signals being delivered in response to the detection of seismic events, the detection occurring via ground-based monitoring systems and/or satellite-based monitoring systems. The alert and/or control signals are distributed through various broadcasting systems or similar channels of communication, such as radio frequency transmitters, Internet service providers, cell phone wireless carriers, satellite phone service providers and/or security monitoring service providers, to individuals and/or facilities through smartphones, landline telephones, tablets, PC's, voice-controlled web communication devices or the like and/or to signal receivers on utilities control units.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: July 14, 2020
    Assignee: E-SEISMIC SOLUTIONS, LLC
    Inventor: Everett Ogden
  • Patent number: 10710012
    Abstract: Disclosed is a device, suitable for use as an acoustic resonator, including a base adapted to be coupled to at least one acoustic wave generator, a spacer including an aperture and a reflector, wherein the base includes a protruding part having a thickness t; the aperture of the spacer is complementary to the protruding part of the base; the device further includes a housing having an aperture complementary to the protruding part of the base and wherein the inner edge of the aperture has the same thickness t than the protruding part; and the housing is positioned between the spacer and the reflector, such that the thickness of the inner edge of the spacer defined the thickness of a cavity between the protruding part and the reflector. Also disclosed is a method of trapping particles in a fluid.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: July 14, 2020
    Assignee: AENITIS TECHNOLOGIES
    Inventors: Emmanuel Vincent, Pierre Bohec
  • Patent number: 10657800
    Abstract: Techniques for gunshot detection in an indoor environment are disclosed. A gunshot sensor is placed in the indoor environment. The gunshot sensor includes multiple individual sensors, including, but not limited to, an acoustic sensor and an infrared sensor. A firearm typically emits energy within the infrared spectrum when fired. This energy is detected by the infrared sensor. A firearm also typically emits an acoustic pressure wave when fired. The acoustic sensor detects the acoustic pressure wave. A strobe from a fire alarm occurring near in time to the gunshot can cause false gunshot detection. The infrared sensor information and the acoustic sensor information are analyzed to determine that a gunshot has occurred. The gunshot determination takes place independently of the location of the gunshot sensor. The strobe occurrence is evaluated to provide gunshot false alert detection. Reverberations are not used in the determination of a gunshot false alert.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: May 19, 2020
    Assignee: Shooter Detection Systems, LLC
    Inventors: Ronald A Fowler, Richard Thomas Onofrio
  • Patent number: 10645361
    Abstract: According to an embodiment, there is provided a system and method for generating a 3 axis perspective view data set in a 360° VR video editing system. One embodiment involves the monitoring of both the view position of a VR headset and the interaction activities of controller devices interacting with the editing software and afterwards automatically utilizing the gathered data to automatically generate output video works in 360° format and 2D format.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 5, 2020
    Assignee: BELLEVUE INVESTMENTS GMBH & CO. KGAA
    Inventors: Tilman Herberger, Titus Tost
  • Patent number: 10585178
    Abstract: An illustrative controller embodiment includes: a transmitter that causes reverberation of a piezoelectric transducer; and a linear damping module that measures characteristics of the reverberation and tunes at least one of a shunt resistance and a shunt reactance for the piezoelectric transducer based on said characteristics. An illustrative sensor embodiment includes: a piezoelectric transducer; and a transducer controller coupled to the piezoelectric transducer to transmit pulses and receive echoes for measuring distances. The controller includes a linear damping module with: a shunt resistance; a shunt inductance; and an optional switch that couples the shunt resistance and shunt inductance in parallel to the piezoelectric transducer to damp reverberation of the piezoelectric transducer after said transmit pulses. The controller measures at least one characteristic of said reverberation and responsively tunes the shunt resistance or the shunt inductance.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: March 10, 2020
    Assignee: SEMICONDUCTOR COMPONENENTS INDUSTRIES, LLC
    Inventors: Ivan Koudar, Jan Ledvina, Jiri Kutej, Pavel Horsky
  • Patent number: 10490892
    Abstract: This device combines multiple elements that function like a single smart antenna that performs both connectivity and spatial discrimination functions. The antenna functions in both receive and transmit modes. The apparatus utilizes commonly used components to distinguish and separate desired satellite signals from those signals of satellites in close directional proximity. Disclosed are six methods for optimizing simultaneously reception of multiple desired satellite signals performed either mechanically or electronically and also included is an optimization technique. The transmission apparatus uses many of the same components as the receiver antenna and additionally uses in-beam nulling to fine tune transmission.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: November 26, 2019
    Assignee: SPATIAL DIGITAL SYSTEMS, INC.
    Inventor: Donald C. D. Chang
  • Patent number: 10488537
    Abstract: Systems and methods of performing a seismic survey are provided. The system includes a seismic data acquisition unit having a transmitter window disposed in a first aperture of a lid, and having a receiver window disposed in a second aperture of the lid. A first gasket is positioned between the transmitter window and the first aperture to provide a clearance greater than a threshold to allow the transmitter window to deform. A second gasket is positioned between the receiver window and the second aperture to provide a clearance greater than the threshold to allow the receiver window to deform. At least one of the transmitter window and the receiver window of the seismic data acquisition unit are configured to pass at least one of optical and electromagnetic communications to or from an extraction vehicle via at least one of a transmitter window and a receiver window of the extraction vehicle.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: November 26, 2019
    Assignee: MAGSEIS FF LLC
    Inventors: Michael Morris, William Guyton, Matthew Stubbe, Chris Nikirk
  • Patent number: 10451667
    Abstract: A method of testing a capacitive transducer circuit, for example a MEMS capacitive transducer, by applying a test signal via one or more capacitors provided in the transducer circuit.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: October 22, 2019
    Assignee: Cirrus Logic, Inc.
    Inventors: Colin Findlay Steele, John L. Pennock
  • Patent number: 10416123
    Abstract: A method of adjusting flaw detection sensitivity on an array ultrasonic probe comprises disposing a plate material P1 oppositely to the ultrasonic probe such that an upper surface of the plate material is disposed to be approximately parallel to an array direction of the transducers 11, or disposing a tubular material P2 oppositely to the ultrasonic probe such that an axial direction of the tubular material is disposed to be approximately parallel to the array direction of the transducers. Ultrasonic waves are transmitted from each transducer toward the upper surface of the plate material or an outer surface of the tubular material, and echoes are received from the bottom surface of the plate material or an inner surface of the tubular material on each transducer. Flaw detection sensitivity of each transducer is adjusted to substantially equalize intensity of an echo received on each transducer.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: September 17, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Masaki Yamano, Yoshiyuki Nakao, Shigetoshi Hyodo, Masaki Tanaka, Tsukasa Suda
  • Patent number: 10392125
    Abstract: Systems and methods are disclosed for passively detecting air turbulence using one or more infrasonic sensors mounted on an aircraft. The system may include one or more infrasonic sensors that are mounted on the aircraft and configured to detect infrasound. The system may also include a processor configured to receive output signals from the one or more infrasonic sensors and detect air turbulence away from the aircraft based on the output signals received from the one or more infrasonic sensors. The detected air turbulence may include natural or man-made turbulence including wake turbulence, clear air turbulence, mountain waves, or events such as a rocket launch.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: August 27, 2019
    Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASA
    Inventor: Qamar A. Shams
  • Patent number: 10380399
    Abstract: Ping-based imaging systems may be used for tracking motion of hard or soft objects within an imaged medium. Motion detection and motion tracking may be performed by defining fingerprint points and tracking the position of each fingerprint point based on the echoes of multiple transmitted pings.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: August 13, 2019
    Assignee: MAUI IMAGING, INC.
    Inventors: Josef R. Call, Henry A. Davis, Donald F. Specht
  • Patent number: 10375494
    Abstract: A microphone test device is provided to test a sound-receiving function of an under-test microphone. The microphone test device includes a test platform, a standard speaker module, a fixing mechanism and a pedestal. A sleeve of the standard speaker module includes a cone-shaped channel. A test acoustic wave from the standard speaker is centralized by the cone-shaped channel. Consequently, the interference of the acoustic wave reflection phenomenon is effectively reduced.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: August 6, 2019
    Assignee: PRIMAX ELECTRONICS LTD
    Inventor: Jun-Hsueh Chou
  • Patent number: 10371796
    Abstract: A plurality of transmission antennas include Nt1 transmission antennas arranged in a first direction and Nt2 transmission antennas arranged in a second direction orthogonal to the first direction, a plurality of reception antennas include Na1 reception antennas arranged in the first direction and Na2 reception antennas arranged in the second direction. In the first direction, an inter-element space between any two of the Nt1 transmission antennas and an inter-element space between any two of the Na1 reception antennas are each a value which is a product of a first space and an integer and are all values different from each other, and in the second direction, an inter-element space between any two of the Nt2 transmission antennas and an inter-element space between any two of the Na2 reception antennas are each a value which is a product of a second space and an integer and are all values different from each other.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: August 6, 2019
    Assignee: Panasonic Corporation
    Inventors: Takaaki Kishigami, Junji Sato
  • Patent number: 10359278
    Abstract: The present disclosure refers to a method for measuring thickness in any type of carbon fiber component, even in components having parts with different thickness and integrating at least a second material. The method includes measuring with the maximum and minimum real thickness of the component, and measuring with ultrasonic equipment the time that the ultrasound takes to propagate across the component part with maximum and with minimum thickness, calculating a thickness correction value, and calculating an ultrasound test speed from said thickness correction value, said measured times, and said measured maximum and minimum real thickness. Then, the total thickness of each of the parts of the component are measured, using ultrasounds with the same calculated ultrasound test speed, and the thickness correction value is applied to each of the measuring total thickness of each part, to determine a corrected carbon fiber thickness for each part.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: July 23, 2019
    Assignee: Airbus Operations, S.L.
    Inventors: Luis Jara Blazquez, David Torres Macarrilla, Sergio Bermejo Gonzalez, David Lopez Bravo
  • Patent number: 10323506
    Abstract: Generally, a sonde, associated components and methods are described which can be used in conjunction with an inground tool having an inground tool housing that defines an inground tool cavity such that the inground tool cavity is exposed to an ambient pressure environment which surrounds the inground tool during an inground operation. A sonde housing assembly includes an exterior configuration that is receivable within the inground tool cavity. The sonde housing assembly at least partially defines a sonde interior and is further configured for receiving the pressure sensor body of a pressure sensor in a pressure sealed engagement. A sonde electronics package is supported within the sonde interior and is at least configured to receive the pressure signal and transfer a corresponding pressure signal from the sonde.
    Type: Grant
    Filed: September 3, 2016
    Date of Patent: June 18, 2019
    Assignee: Merlin Technology Inc.
    Inventors: Albert W. Chau, Dmitry Feldman, Benjamin John Medeiros
  • Patent number: 10317373
    Abstract: An acoustic testing system includes at least four control microphones, at least four acoustic transducers, an acoustic enclosure with pre-determined reverberant characteristics which contains the at least four control microphones and the at least four acoustic transducers, a control system configured to produce a predetermined acoustic field as measured by the at least one control microphone. A unit under test is also disposed within the acoustic enclosure. Using an acoustic enclosure with pre-determined reverberant characteristics results of the increased proportion of reflected sounds in the area proximate to the unit under test such that less power is required to achieve a given acoustic test level than in a purely direct field acoustic test.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: June 11, 2019
    Assignee: MSI DFAT LLC
    Inventors: Paul Larkin, Matthew Polk, Dann Hayes
  • Patent number: 10246992
    Abstract: A method and a system of analyzing multiphase fluid flow in at least one well or pipeline is provided, the method comprises characterizing slug flow in the multiphase fluid flow by receiving a plurality of well pressure data from the at least one well, processing the plurality of well pressure data to obtain a time-varying slug amplitude and/or a time-varying slug period for slugs in the slug flow, analyzing the slug amplitudes and/or the slug periods over a period of time to thereby determine a measure of well performance. Also an oil field monitoring system for an oil field comprising a plurality of wells is provided. Each well has a pressure gauge installed to measure a well pressure and is connected to a multiphase fluid flow analyzing system. An oil field unit receives the measure of well performance from the multiphase fluid flow analyzing system, and output the measures of well performance for each of the plurality of wells.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: April 2, 2019
    Assignee: TOTAL E&P DANMARK A/S
    Inventors: Jens Henrik Hansen, Kristian Mogensen
  • Patent number: 10206662
    Abstract: A method of calibrating an ultrasound probe includes mounting an ultrasound probe onto a calibration system, transmitting an ultrasound test signal from an element of the probe through a test medium of the calibration system, and receiving the test signal on a matrix of hydrophones such that an element's position relative to other elements and other arrays within the same probe can be computed. Further, the system described herein is configured to detect the acoustic performance of elements of a probe and report the results to an end user or service provider.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: February 19, 2019
    Assignee: MAUI IMAGING, INC.
    Inventors: David M. Smith, Sharon L. Adam, Donald F. Specht, Kenneth D. Brewer, John P. Lunsford, David J. Specht
  • Patent number: 10201833
    Abstract: An apparatus is disclosed which may include a plurality of marine seismic sources. According to some embodiments, these marine seismic sources may include a plurality of piezoelectric components. Such an apparatus may provide a useful sound pressure level for conducting marine seismic surveying. According to some embodiments, a conduit may be coupled between the plurality of marine seismic sources and a gas reservoir external to the plurality of marine seismic sources. The conduit may in some embodiments have at least one adjustable dimension for changing a frequency of the apparatus. The apparatus may be used in a method of marine seismic surveying.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: February 12, 2019
    Assignees: PGS Geophysical AS, Geospectrum Technologies Inc.
    Inventors: Bruce Armstrong, Paul Yeatman, Øystein Traetten, Mattias Oscarsson, Rune Voldsbekk, Rune Tønnessen
  • Patent number: 10160454
    Abstract: The invention relates to a sensor arrangement (3) for detecting a state of a road (11), with a sensor device (9) which is designed to detect an impact of water (12) on a wheel arch lining (13) of a motor vehicle (1) while the motor vehicle (1) is travelling on the road (11), and with a control device (7) for detecting the state of the road (11) on the basis of the impact of the water (12) detected by means of the sensor device (9), wherein the sensor device (9) has a first and a second ultrasound sensor (4, 5) which are designed in each case to receive an ultrasound signal and which are furthermore designed in each case to detect the impact of the water (12) on the wheel arch lining (13), wherein the first and the second ultrasound sensor (4, 5) are arranged apart from one another on or in the wheel arch lining (13).
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: December 25, 2018
    Assignee: VALEO Schalter und Sensoren GmbH
    Inventors: Natalie Barthel, Wolfgang Hamm, Thomas Jung, Thomas Schuler, Marian Roeger, Felix Haering
  • Patent number: 10070220
    Abstract: The proposed invention implements real-time sensitivity estimation, using a microphone path, and variable gain. When a multi-microphone system is configured to perform in its target use case, and the microphone gain is estimated, and the system output is corrected for performance degradation, sensitivity compensation is performed. A classification system is implemented to enable or disable subsequent gain estimation, and hence power consumption required when enabled or disabled, on a frame-by-frame basis. An acoustic environment is used to trigger a classification system, with electrical power consumption analysis performed to detect audio segments. The approach to the microphone sensitivity mismatch problem is to estimate the mismatch at runtime and provide gain compensation, and provide runtime compensation for the difference in sensitivity to sound pressure level between transducer elements in an array of 2 or more microphones.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: September 4, 2018
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Paul Shields, Ashley Hughes
  • Patent number: 10048101
    Abstract: An acoustic system can include a liquid-filled coupling component comprising an acoustic coupling fluid and a housing encasing the coupling fluid; a fluid reservoir comprising an amount of the coupling fluid; a path in fluid communication between the coupling component and the fluid reservoir; and a bubble detector coupled to the path and configured to monitor the coupling fluid in the path.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: August 14, 2018
    Assignee: ARDENT SOUND, INC.
    Inventor: Peter G. Barthe
  • Patent number: 10041828
    Abstract: A method for inspecting an object by ultrasound transmission, including sweeping an ultrasound beam over a reference part that has the same geometry as the object to be inspected, and measuring the amplitude transmitted through the part to obtain a mapping thereof. The ultrasound beam is amplified with a reference gain. The method further includes determining gain corrections to be added to the reference gain at certain points during the sweeping of the reference part to obtain an ultrasound beam amplitude transmitted through the part which is constant at each point of the mapping, and sweeping an ultrasound beam over the object to be inspected and measuring the transmitted amplitude. The gain applied to the various points during the sweeping corresponds to the reference gain corrected on the basis of said corrections.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: August 7, 2018
    Assignee: SNECMA
    Inventors: Nicolas Broussais-Colella, Jean-Yves Chatellier, Jeremy Duval
  • Patent number: 10031249
    Abstract: Disclosed are methods and systems for enabling anti-twist functionality in marine geophysical streamers. An embodiment discloses a method comprising: towing a streamer behind a survey vessel in a body of water, wherein the streamer comprises rotation sensors and streamer rotation devices; receiving data from at least one rotation sensor indicative of streamer twist; and rotating a portion of the streamer with at least one streamer rotation device to reduce the streamer twist based, at least in part on the data.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: July 24, 2018
    Assignee: PGS Geophysical AS
    Inventors: Øyvind Hillesund, Gustav Goran Mattias Südow
  • Patent number: 10012762
    Abstract: In some embodiments, methods, apparatus, and systems may operate to determine downhole tool standoff using a nuclear tool and photon activity, and to correct acoustic measurements using the standoff.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: July 3, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Zhijuan Zhang, Weijun Guo, Dongwon Lee
  • Patent number: 9995640
    Abstract: Certain exemplary embodiments can provide a system, which can comprise a thermocouple input module. The thermocouple input module can be adapted to determine one or more calibration factors. The thermocouple input module can be adapted to store the calibration factors. The thermocouple input module can be adapted to apply the calibration factors to an incoming thermocouple voltage value to obtain an adjusted thermocouple voltage value.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: June 12, 2018
    Assignee: SIEMENS INDUSTRY, INC.
    Inventors: Stephen Mowry, Robert Alan Weddle
  • Patent number: 9980070
    Abstract: Test apparatus measuring relative frequency response of first and second microphones includes a rotatable carrier. First and second microphones are sealingly clamped against a mounting surface of the carrier aligned with first and second apertures therein, such apertures lying equidistant from, and on opposite sides of, the carrier's axis of rotation. The carrier initially positions the first microphone closest to an audible signal source, and the responses of the microphones to an audible excitation signal are measured. The carrier is rotated 180 degrees, and the measurements are repeated. Elongated strips of gasket material are used to align the microphones and to form a seal with the carrier. When microphones are mounted deep within an audio device, the audio device is sealingly clamped against a mounting plate, sequentially aligning the mounting plate aperture with first and second apertures of the audio device housing corresponding to first and second microphones disposed therein.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: May 22, 2018
    Assignee: Cirrus Logic, Inc.
    Inventors: Samuel Ponvarma Ebenezer, Seth Suppappola, Clifton Cordes
  • Patent number: 9926675
    Abstract: The present invention relates to a surface compactor and a method of operating a surface compactor. The surface compactor is provided with at least one compacting surface for compacting a substrate an excitation system that generates a substantially square wave vibrational displacement or force that vibrates the least one compacting surface during compaction to increase the compaction rate of the substrate.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: March 27, 2018
    Assignee: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Michael P. MacDonald, Dale W. Starry, Jr.
  • Patent number: 9915745
    Abstract: At least some embodiments are directed to a system. The system includes a processor and a memory coupled to the processor. The memory stores a program that, when executed by the processor, causes the processor to calculate a pressure response of a first sensor, and correct pressure wavefield data obtained from the first sensor responsive to a first acoustic wavefield. The correction is based on the calculated pressure response of the first sensor. The pressure response of the first sensor is responsive to a second acoustic wavefield having a propagation path between a source of the second acoustic wavefield and the first sensor, in which the propagation path includes no reflection from a subsurface formation.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: March 13, 2018
    Assignee: PGS Geophysical AS
    Inventors: Stian Hegna, Tilman Kluver
  • Patent number: 9850792
    Abstract: A device for determining a filling level of a container is provided, having a damping cup, a measuring section extending vertically inside the damping cup, and having an ultrasound converter arranged at its lower end region, and at least one antechamber. A calming structure is arranged in at least a part of at least one antechamber, to achieve as much degassing of the liquid as possible. The part of the antechamber having the calming structure is designed to be open towards the top over a large area and is connected, via a venting channel, with a vent in the upper region of the device.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: December 26, 2017
    Assignee: Hella KGAA Hueck & Co.
    Inventors: Thomas Niemann, Jurgen Palloks
  • Patent number: 9823331
    Abstract: An object detecting apparatus includes a detecting unit configured to detect an area of a predetermined object from an image, a calculating unit configured to calculate an evaluation value on the area detected by the detecting unit, and a control unit configured, when the evaluation value satisfies a predetermined criterion, to determine that the area is the predetermined object. The predetermined criterion is set depending on an amount of distortion of an image displayed on a display unit.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: November 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Makoto Yokozeki
  • Patent number: 9817141
    Abstract: The present invention provides a technique to separate compressional seismic waves from shear seismic waves and to determine their direction of propagation to enhance the seismic monitoring oil and gas reservoirs and the seismic monitoring of hydrofracturing in oil and gas wells. The invention utilizes various combinations of multi-component linear seismic sensors, multi-component rotational seismic sensors, and pressure sensors. Sensors are jointly deployed in arrays of shallow monitoring wells to avoid the complicating effects of the free surface of the earth. The emplacement of sensors in the shallow monitoring wells may be permanent. The method has a wide range of application in oil and gas exploration and production. This abstract is not intended to be used to interpret or limit the claims of this invention.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: November 14, 2017
    Assignee: Geokinetics USA, Inc.
    Inventor: Robert H. Brune
  • Patent number: 9779714
    Abstract: An active noise control arrangement has a signal input (SI), a microphone input (MI), a signal output (SO) and a digital interface (DI). A signal processing block (SP) coupled to the microphone input (MI) by means of an amplifier (MA) has a digitally adjustable gain and comprises combining means (CM) and a filter (TP). The signal processing block (SP) is configured to generate an output signal at the signal output (SO) as a function of an input signal at the signal input (SI) and an amplified microphone signal. A control block (CB) is coupled to the digital interface (DI) and configured to adjust the gain of the amplifier (MA).
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: October 3, 2017
    Assignee: AMS AG
    Inventor: Helmut Theiler
  • Patent number: 9737284
    Abstract: A phantom for measuring thickness of a thin layer and a method of using thereof. The phantom may include a non-scattering muscle mimicking material having a flat top surface; a plurality of soft tissue mimicking thin layers placed in a first area, which is at least a part of a top surface of the non-scattering muscle mimicking material, and having thicknesses different from each other; and an anechoic blood mimicking liquid material placed in an area other than the first area among an entire area of the top surface of the non-scattering muscle mimicking material and on a top surface of the plurality of soft tissue mimicking thin layers.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: August 22, 2017
    Assignee: Korea Research Institute of Standards and Science
    Inventors: Yong Tae Kim, Bong Young Ahn, Il Doh, Wuon-Shick Kim
  • Patent number: 9729970
    Abstract: An assembly and a method for determining the distance between two sound providers, such as the ear pieces of a headset or two hearing aids. A signal is fed to the sound providers from a portable element, such as a mobile telephone, from a position to the side of the person, and from the travelling time of the signal, the distance is determined. Subsequently, audio signals taking the distance into account are fed to the sound generators.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: August 8, 2017
    Assignee: GN Store Nord A/S
    Inventors: Jesper Udesen, Karl Fredrik Gran
  • Patent number: 9711042
    Abstract: Disclosed are methods and devices for controlling pieces of equipment by sound pulses, which include operations and means for determining characteristics of a vector defined by two sound pulses received by at least two receivers. In various implementations, the characteristics may comprise at least the direction and possibly also the sense and the norm of the vector, and these sound pulses may be generated in a zone defined relative to the receivers. The methods and devices may also include operations and means for controlling a piece of equipment where the command applied to the equipment may be determined at least by the direction of the vector.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: July 18, 2017
    Inventor: Vincent Stoltz
  • Patent number: 9703809
    Abstract: Methods and apparatuses are disclosed that assist in correlating subsequent geophysical surveys. In some embodiments, geophysical data may be generated including a first set of data from a monitor survey that is matched with a second set of data from a baseline survey. An attribute value may be generated for each datum in the first set of data, and the generated attribute value may be associated with the datum from the first set of data and at least one of a plurality of bins. In some embodiments, the attribute values may be based upon the geometric closeness of sources and receivers in the baseline and monitor surveys.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: July 11, 2017
    Assignee: ION Geophysical Corporation
    Inventor: John Gregor
  • Patent number: 9699582
    Abstract: A self calibrating dipole microphone formed from two omni-directional acoustic sensors. The microphone includes a sound source acoustically coupled to the acoustic sensors and a processor. The sound source is excited with a test signal, exposing the acoustic sensors to acoustic calibration signals. The responses of the acoustic sensors to the calibration signals are compared by the processor, and one or more correction factors determined. Digital filter coefficients are calculated based on the one or more correction factors, and applied to the output signals of the acoustic sensors to compensate for differences in the sensitivities of the acoustic sensors. The filtered signals provide acoustic sensor outputs having matching responses, which are subtractively combined to form the dipole microphone output.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: July 4, 2017
    Assignee: VOCOLLECT, Inc.
    Inventors: John Sheerin, Richard Sharbaugh, Matthew Shope
  • Patent number: 9674626
    Abstract: Test apparatus measuring relative frequency response of first and second microphones includes a rotatable carrier. First and second microphones are sealingly clamped against a mounting surface of the carrier aligned with first and second apertures therein, such apertures lying equidistant from, and on opposite sides of, the carrier's axis of rotation. The carrier initially positions the first microphone closest to an audible signal source, and the responses of the microphones to an audible excitation signal are measured. The carrier is rotated 180 degrees, and the measurements are repeated. Elongated strips of gasket material are used to align the microphones and to form a seal with the carrier. When microphones are mounted deep within an audio device, the audio device is sealingly clamped against a mounting plate, sequentially aligning the mounting plate aperture with first and second apertures of the audio device housing corresponding to first and second microphones disposed therein.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: June 6, 2017
    Assignee: Cirrus Logic, Inc.
    Inventors: Samuel Ponvarma Ebenezer, Seth Suppappola, Clifton Cordes
  • Patent number: 9621208
    Abstract: A communication system periodically changes the carrier wave frequency or phase such that a signal traveling a reflected path no longer destructively interferes with a signal traveling a direct line-of-sight path. The communication system negotiates a periodic frequency or phase shift with a receiver, and then shifts the frequency or phase according to the negotiated schedule to maintain continuous communication.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: April 11, 2017
    Assignee: Rockwell Collins, Inc.
    Inventors: Timothy E. Snodgrass, James A. Stevens
  • Patent number: 9572546
    Abstract: Provided is an object information acquiring apparatus including a probe in which a plurality of elements transmitting an ultrasound wave to a measurement target region of an object and receiving a reflected wave is arranged in a first direction, and a mechanical scanning unit that moves the probe in the first direction and a direction crossing the first direction. A transmission processor, to each element included in a transmission aperture element row transmitting the ultrasound wave, inputs an input signal for driving the element, and a received signal processor combines received signals obtained by the elements included in a reception aperture element row receiving the ultrasound wave. A generator generates property information on the object from the combined signal, and a controller that determines at least one of the number of elements included in the transmission aperture element row.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroki Takahashi, Hisafumi Ebisawa
  • Patent number: 9575116
    Abstract: A method of testing a capacitive transducer circuit, for example a MEMS capacitive transducer, by applying a test signal via one or more capacitors provided in the transducer circuit.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: February 21, 2017
    Assignee: Cirrus Logic, Inc.
    Inventors: Colin Findlay Steele, John L. Pennock
  • Patent number: 9557428
    Abstract: A method is provided for controlling quality of operation of a passive acoustic monitoring system. The method includes, at least for one given source: (a) the given source emits at least one acoustic test signal; (b) the passive acoustic monitoring system obtains acoustic signal measurements and estimates at least one parameter, characteristic of and/or associated with the at least one test acoustic signal, as a function of the acoustic signal measurements; (c) comparing the at least one estimated parameter with at least one reference parameter, characteristic of and/or associated with the at least one test acoustic signal; (d) obtaining at least one piece of quality information, as a function of results of the comparing step. A quality control device is provided, which drives the given source to trigger the step (a), obtains the at least one estimated parameter and carries out the steps (c) and (d).
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: January 31, 2017
    Assignee: SERCEL
    Inventor: Christophe L'Her
  • Patent number: 9551811
    Abstract: A method is disclosed for acoustic calibration of a towed hydrophone line array. In a very low frequency band, calibration is performed using a surrounding ambient acoustic noise environment observed by one or more calibrated reference standard hydrophones and hydrophone channels of the array being calibrated. The array hydrophone sensitivities are computed by comparing output voltages of the array hydrophones with the output voltages of one or more calibrated reference hydrophones. The method extends the low frequency limit for the calibration of a towed hydrophone line array to substantially less than the minimum frequency at which the acoustic projectors commonly used for acoustic calibrations can transmit a useful acoustic signal.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: January 24, 2017
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Steven E. Crocker
  • Patent number: 9523660
    Abstract: The method for calibrating an inspection instrument coupled with acoustic transducers disposed at circumferential positions distributed around a surface of an elongated object to inspect generally has the steps of: for each one of the circumferential positions, measuring a first and a second received signal using two acoustic transducers disposed at two axial positions along the object, the received signals resulting from the propagation of an acoustic guided wave signal along the object; identifying an acoustic mode according to the first received and the second received signals using a known period of time associated with the propagation of the acoustic guided wave signal between the two axial positions along the object; and determining a coupling coefficient associated with the acoustic mode, the coupling coefficient being indicative of the coupling of the acoustic transducers on the object; and calibrating the inspection instrument coupled to the object based on the coupling coefficients.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: December 20, 2016
    Assignee: OLYMPUS SCIENTIFIC SOLUTIONS AMERICAS INC.
    Inventors: Benoit Lepage, Guillaume Painchaud-April
  • Patent number: 9494562
    Abstract: Methods and apparatus for non-destructive testing of a composite structure utilizing sonic or ultrasonic waves. In response to a wideband chirp wave sonic excitation signal transmitted from a probe to the composite structure, a probe signal received is correlated with a library of predetermined probe signals and a graphical representation of defects detected is generated. The graphical representation provides detailed information on defect type, defect location and defect shape.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: November 15, 2016
    Assignee: Agency for Science, Technology and Research
    Inventors: Wei Lin, Lay Siong Goh, Lye Seng Wong, Heng Kiat Jonathan Hey, Ricky Riyadi Chan, Roman Britner
  • Patent number: 9465121
    Abstract: A system and method instantly on-site analyze seismic acceleration signals measured from a primary wave of an earthquake and at a detecting site. The system includes an embedded computing host and a signal preprocessing module. Hardware preprocessing is executed on the seismic acceleration signals; and whether the earthquake is a seismic event is able to be determined according to a seism determining logic. Seismic acceleration signals are converted into ground velocities and ground displacements to obtain a peak ground displacement. A seismic fracture time parameter is calculated through the ground velocities and ground displacements and then a seismic magnitude of the earthquake is obtained. According to the peak ground displacement and the seismic magnitude, an epicentral distance is further calculated. Then a peak ground acceleration of the earthquake's shear wave at the detection site is able to be obtained through the seismic magnitude and the epicentral distance.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: October 11, 2016
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Pei-Yang Lin, Tao-Ming Chang, Tzu-Kang Lin, Shieh-Kung Huang, Hung-Wei Chiang, Zhe-Ping Shen
  • Patent number: 9462362
    Abstract: A microphone support device includes a ring-shaped flame, a plurality of fixed arms which protrude toward an inner side of the flame, a plurality of movable arms which are longer than the fixed arms and are detachable, and multiple microphones. A small-size microphone array is constructed by accommodating the plurality of movable arms inside of the flame in a radiating state. On the other hand, a large-size microphone array is constructed by radially developing the plurality of movable arms outside of the flame. When constructing a circular two-dimensional microphone array, a size of the circular two-dimensional microphone array can be easily changed in this manner. Hence, the sound localization can be handled over a wide frequency range.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: October 4, 2016
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takaaki Yamanaka, Masaya Gotou, Toshihiko Kato
  • Patent number: 9434327
    Abstract: An imaging system for a vehicle is disclosed having an image sensor positioned in the vehicle for capturing images through a windscreen of the vehicle and for generating image data corresponding to the captured images, and a processor coupled to the image sensor for receiving and analyzing the image data and detecting vehicle light sources in the captured images. The processor: detects a predetermined number of vehicle light sources; averages color values of each detected vehicle light source; determines differences between the averaged color values and target color values; and stores the differences as color compensation values. A vehicle equipment control system is further disclosed having the imaging system above, wherein the processor compensates color values of subsequently detected vehicle light sources and generates a control signal that is used to control the vehicle equipment in response to the detection of color compensated vehicle light sources in the captured images.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: September 6, 2016
    Assignee: GENTEX CORPORATION
    Inventor: Phillip R. Pierce
  • Patent number: 9410392
    Abstract: A measurement system including a container including an element moveable within an internal volume of the container. A sensor wirelessly measures the position of the element within the container and transmits the measured position information. Also included is an information system capable of reading the position information from the sensor.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: August 9, 2016
    Assignee: Cameron International Corporation
    Inventors: Andrew Jaffrey, Jon Davies