Patents by Inventor Hans Paulson

Hans Paulson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10613139
    Abstract: Embodiments disclosed herein are directed towards systems and methods for electric current leakage detection in a land seismic system. Embodiments may include generating at least one test signal using a digital to analog converter “DAC” circuitry, wherein the DAC circuitry includes an output operatively connected to earth ground. Embodiments may further include alternately grounding a positive path to an analog to digital converter “ADC” circuitry during a first time window and a negative path to the analog to digital converter during a second time window while measuring an ADC signal. Embodiments may also include determining an average amplitude of the first time window and the second time window and determining a leakage resistance based upon, at least in part, the average amplitude of the first time window and the second time window.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: April 7, 2020
    Assignee: WesternGeco L.L.C
    Inventors: Kambiz Iranpour, Stefan Johansson, Hans Paulson
  • Publication number: 20200049843
    Abstract: The present disclosure is directed to a MEMS-based rotation sensor for use in seismic data acquisition and sensor units having same. The MEMS-based rotation sensor includes a substrate, an anchor disposed on the substrate and a proof mass coupled to the anchor via a plurality of flexural springs. The proof mass has a first electrode coupled to and extending therefrom. A second electrode is fixed to the substrate, and one of the first and second electrodes is configured to receive an actuation signal, and another of the first and second electrodes is configured to generate an electrical signal having an amplitude corresponding with a degree of angular movement of the first electrode relative to the second electrode. The MEMS-based rotation sensor further includes closed loop circuitry configured to receive the electrical signal and provide the actuation signal. Related methods for using the MEMS-based rotation sensor in seismic data acquisition are also described.
    Type: Application
    Filed: October 18, 2019
    Publication date: February 13, 2020
    Inventors: Maxime Projetti, Olivier Vancauwenberghe, Nicolas Goujon, Hans Paulson
  • Patent number: 10451753
    Abstract: The present disclosure is directed to a MEMS-based rotation sensor for use in seismic data acquisition and sensor units having same. The MEMS-based rotation sensor includes a substrate, an anchor disposed on the substrate and a proof mass coupled to the anchor via a plurality of flexural springs. The proof mass has a first electrode coupled to and extending therefrom. A second electrode is fixed to the substrate, and one of the first and second electrodes is configured to receive an actuation signal, and another of the first and second electrodes is configured to generate an electrical signal having an amplitude corresponding with a degree of angular movement of the first electrode relative to the second electrode. The MEMS-based rotation sensor further includes closed loop circuitry configured to receive the electrical signal and provide the actuation signal. Related methods for using the MEMS-based rotation sensor in seismic data acquisition are also described.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: October 22, 2019
    Assignee: WESTERNGECO L.L.C.
    Inventors: Maxime Projetti, Olivier Vancauwenberghe, Nicolas Goujon, Hans Paulson
  • Publication number: 20190072610
    Abstract: Embodiments disclosed herein are directed towards systems and methods for electric current leakage detection in a land seismic system. Embodiments may include generating at least one test signal using a digital to analog converter “DAC” circuitry, wherein the DAC circuitry includes an output operatively connected to earth ground. Embodiments may further include alternately grounding a positive path to an analog to digital converter “ADC” circuitry during a first time window and a negative path to the analog to digital converter during a second time window while measuring an ADC signal. Embodiments may also include determining an average amplitude of the first time window and the second time window and determining a leakage resistance based upon, at least in part, the average amplitude of the first time window and the second time window.
    Type: Application
    Filed: March 15, 2017
    Publication date: March 7, 2019
    Inventors: Kambiz Iranpour, Stefan Johansson, Hans Paulson
  • Publication number: 20170261626
    Abstract: The present disclosure is directed to a MEMS-based rotation sensor for use in seismic data acquisition and sensor units having same. The MEMS-based rotation sensor includes a substrate, an anchor disposed on the substrate and a proof mass coupled to the anchor via a plurality of flexural springs. The proof mass has a first electrode coupled to and extending therefrom. A second electrode is fixed to the substrate, and one of the first and second electrodes is configured to receive an actuation signal, and another of the first and second electrodes is configured to generate an electrical signal having an amplitude corresponding with a degree of angular movement of the first electrode relative to the second electrode. The MEMS-based rotation sensor further includes closed loop circuitry configured to receive the electrical signal and provide the actuation signal. Related methods for using the MEMS-based rotation sensor in seismic data acquisition are also described.
    Type: Application
    Filed: January 16, 2017
    Publication date: September 14, 2017
    Inventors: MAXIME PROJETTI, OLIVIER VANCAUWENBERGHE, NICOLAS GOUJON, HANS PAULSON
  • Patent number: 9709687
    Abstract: A multiple axis sensor assembly includes an enclosure and encapsulated microelectromechanical system (MEMS) sensors. The encapsulated sensors are disposed inside the enclosure and are mounted in different orientations, which correspond to different axes of the sensor assembly. A controller of the sensor assembly is disposed in the enclosure and electrically coupled to the MEMS sensors.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: July 18, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Hans Paulson, Vidar A. Husom, Nicolas Goujon
  • Patent number: 9547095
    Abstract: The present disclosure is directed to a MEMS-based rotation sensor for use in seismic data acquisition and sensor units having same. The MEMS-based rotation sensor includes a substrate, an anchor disposed on the substrate and a proof mass coupled to the anchor via a plurality of flexural springs. The proof mass has a first electrode coupled to and extending therefrom. A second electrode is fixed to the substrate, and one of the first and second electrodes is configured to receive an actuation signal, and another of the first and second electrodes is configured to generate an electrical signal having an amplitude corresponding with a degree of angular movement of the first electrode relative to the second electrode. The MEMS-based rotation sensor further includes closed loop circuitry configured to receive the electrical signal and provide the actuation signal. Related methods for using the MEMS-based rotation sensor in seismic data acquisition are also described.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: January 17, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Maxime Projetti, Olivier Vancauwenberghe, Nicolas Goujon, Hans Paulson
  • Publication number: 20150316667
    Abstract: The present disclosure is directed to a MEMS-based rotation sensor for use in seismic data acquisition and sensor units having same. The MEMS-based rotation sensor includes a substrate, an anchor disposed on the substrate and a proof mass coupled to the anchor via a plurality of flexural springs. The proof mass has a first electrode coupled to and extending therefrom. A second electrode is fixed to the substrate, and one of the first and second electrodes is configured to receive an actuation signal, and another of the first and second electrodes is configured to generate an electrical signal having an amplitude corresponding with a degree of angular movement of the first electrode relative to the second electrode. The MEMS-based rotation sensor further includes closed loop circuitry configured to receive the electrical signal and provide the actuation signal. Related methods for using the MEMS-based rotation sensor in seismic data acquisition are also described.
    Type: Application
    Filed: December 12, 2013
    Publication date: November 5, 2015
    Applicant: WESTERNGECO L.L.C.
    Inventors: MAXIME PROJETTI, OLIVIER VANCAUWENBERGHE, NICOLAS GOUJON, HANS PAULSON
  • Publication number: 20150301207
    Abstract: A multiple axis sensor assembly includes an enclosure and encapsulated microelectromechanical system (MEMS) sensors. The encapsulated sensors are disposed inside the enclosure and are mounted in different orientations, which correspond to different axes of the sensor assembly. A controller of the sensor assembly is disposed in the enclosure and electrically coupled to the MEMS sensors.
    Type: Application
    Filed: July 6, 2015
    Publication date: October 22, 2015
    Inventors: Hans Paulson, Vidar A. Husom, Nicolas Goujon
  • Patent number: 9103930
    Abstract: A multiple axis sensor assembly includes an enclosure and encapsulated microelectromechanical system (MEMS) sensors. The encapsulated sensors are disposed inside the enclosure and are mounted in different orientations, which correspond to different axes of the sensor assembly. A controller of the sensor assembly is disposed in the enclosure and electrically coupled to the MEMS sensors.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: August 11, 2015
    Assignee: WESTERNGECO L.L.C.
    Inventors: Hans Paulson, Vidar A. Husom, Nicolas Goujon
  • Patent number: 9010170
    Abstract: A technique includes using an accelerometer to provide an output signal indicative of an acceleration experienced by a movable mass of a sensor of the accelerometer. The technique includes testing the accelerometer, and the testing includes using a closed loop including the sensor to provide the output signal of the accelerometer; injecting a test signal into the loop between an output terminal of the sensor and an output terminal of the accelerometer; and indicating a performance of the accelerometer based on a response of the accelerometer to the injection of the test signal.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: April 21, 2015
    Assignee: Westerngeco L.L.C.
    Inventors: Hans Paulson, Daniel Rönnow
  • Publication number: 20130315036
    Abstract: A multiple axis sensor assembly includes an enclosure and encapsulated microelectromechanical system (MEMS) sensors. The encapsulated sensors are disposed inside the enclosure and are mounted in different orientations, which correspond to different axes of the sensor assembly. A controller of the sensor assembly is disposed in the enclosure and electrically coupled to the MEMS sensors.
    Type: Application
    Filed: May 23, 2012
    Publication date: November 28, 2013
    Applicant: WESTERNGECO L.L.C.
    Inventors: Hans Paulson, Vidar A. Husom, Nicolas Goujon
  • Publication number: 20120036931
    Abstract: A technique includes using an accelerometer to provide an output signal indicative of an acceleration experienced by a movable mass of a sensor of the accelerometer. The technique includes testing the accelerometer, and the testing includes using a closed loop including the sensor to provide the output signal of the accelerometer; injecting a test signal into the loop between an output terminal of the sensor and an output terminal of the accelerometer; and indicating a performance of the accelerometer based on a response of the accelerometer to the injection of the test signal.
    Type: Application
    Filed: June 22, 2011
    Publication date: February 16, 2012
    Inventors: Hans PAULSON, Daniel RÖNNOW
  • Patent number: 8104346
    Abstract: An apparatus includes a seismic acquisition system that includes an accelerometer. The accelerometer includes a capacitive MEMS-based sensor, a controller and a charge amplifier. The sensor includes a proof mass; input terminals to receive a first signal; and an output terminal that is electrically connected to the proof mass to provide a second signal. The first signal, which is regulated by the controller, controls an equilibrium restoring force for the sensor and causes the sensor to provide the second signal. The charge amplifier provides a third signal, which is indicative of a position of the proof mass. The charge amplifier has an input terminal to continuously receive the second signal during a time in which the first signal controls the equilibrium restoring force and causes the sensor to provide the second signal.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: January 31, 2012
    Assignee: WesternGeco L.L.C.
    Inventor: Hans Paulson
  • Publication number: 20100172208
    Abstract: A system includes a seismic streamer, which includes particle motion sensors and processors. Each processor is associated with a different one of the particle motion sensors and is adapted to process data acquired by the associated particle motion sensor to compensate the data for a characteristic of the sensor.
    Type: Application
    Filed: January 7, 2009
    Publication date: July 8, 2010
    Inventors: Ashok Belani, Kemal Ozdemir, Vidar Husom, Hans Paulson, Nicolas Goujon
  • Publication number: 20100116054
    Abstract: An apparatus includes a seismic acquisition system that includes an accelerometer. The accelerometer includes a capacitive MEMS-based sensor, a controller and a charge amplifier. The sensor includes a proof mass; input terminals to receive a first signal; and an output terminal that is electrically connected to the proof mass to provide a second signal. The first signal, which is regulated by the controller, controls an equilibrium restoring force for the sensor and causes the sensor to provide the second signal. The charge amplifier provides a third signal, which is indicative of a position of the proof mass.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 13, 2010
    Inventor: Hans Paulson
  • Patent number: 6353577
    Abstract: A seismic sensor unit (10) comprises a case (12) containing electronic circuits (18, 20) that serve to digitise and digitally process the output signals of a seismic sensor element (16) inside the case (12). A first digital filtering of acquired signals can be provided at sensor unit level before the data are further fed into a seismic network and further processed.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: March 5, 2002
    Inventors: Jacques Joseph Henri Orban, Didier Largeau, Andreas Wolfgang Laake, Hans Paulson, Abdullah Akkoca