Patents Examined by Elias Desta
  • Patent number: 11372020
    Abstract: A posture estimation method includes calculating a posture change amount of an object based on an output of an angular velocity sensor, predicting posture information of the object by using the posture change amount, limiting a bias error in a manner of limiting a bias error component of an angular velocity around a reference vector in error information, and correcting the predicted posture information of the object based on the error information, the reference vector, and an output of a reference observation sensor. A posture estimation device for performing the method includes a posture-change amount calculation unit, a posture information prediction unit, an error information update unit, a bias error limitation unit, and a posture information correction unit.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: June 28, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yasushi Nakaoka
  • Patent number: 11366248
    Abstract: A method of generating an aggregate forecast includes obtaining historical forecasts for a number of time steps and at least one location, obtaining historical conditions for the time steps and the at least one location, training a machine learning algorithm to produce an aggregate historical forecast in response to the historical conditions and the historical forecasts, and producing an aggregate current forecast by running the trained machine learning algorithm on current forecasts. The historical forecasts and the current forecasts vary in at least one of spatial resolution or temporal resolution, and include a first forecast that is valid for a first time step and a second forecast that is valid for a second time step.
    Type: Grant
    Filed: December 29, 2019
    Date of Patent: June 21, 2022
    Assignee: International Business Machines Corporation
    Inventors: Johannes W. Schmude, Siyuan Lu, Hendrik F. Hamann, Akihisa Sakurai, Taku Izumiyama, Masao Hasegawa
  • Patent number: 11360224
    Abstract: A method and apparatus for identifying features of a subsurface region, including: obtaining an initial physical property model and survey data for the subsurface region; identifying a current model to be the initial physical property model; and executing one or more iterations of: generating synthetic data and forward wavefields with the current model and the survey data by forward modeling with forward wave equations representing isotropic wave-mode-independent attenuation; generating adjoint wavefields with the synthetic data and the survey data by adjoint modeling with adjoint wave equations representing isotropic wave-mode-independent attenuation; computing an objective function gradient with the forward wavefields and the adjoint wavefields by solving gradient equations with the corresponding wave equations representing isotropic wave-mode-independent attenuation; computing a search direction of the objective function; searching for a possible improved model along the search direction; and updating the
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: June 14, 2022
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Sirui Tan, John E. Anderson, Sunwoong Lee
  • Patent number: 11360230
    Abstract: A method is described for seismic inversion including receiving a processed seismic image and an enhanced seismic image representative of a subsurface volume of interest; forward modeling the processed seismic image and the enhanced seismic image to generate a first modeled dataset and a second modeled dataset; differencing the first modeled dataset and the second modeled dataset to create a residual dataset; filtering the first modeled dataset to generate an approximation of illumination; preconditioning the residual dataset with the approximation of illumination to generate an adjoint source; back projecting the adjoint source to determine a model update; and applying the model update to an earth model of the subsurface volume of interest.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: June 14, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Siwei Li, Guojian Shan, Yue Wang
  • Patent number: 11360113
    Abstract: A method for measuring rotation speed of an aircraft engine shaft includes: acquisition of an alternating rotation speed detection signal across terminals of a phonic wheel sensor, conversion of the alternating signal into a square signal; comparison of a plurality of previously-stored square signal period samples to lower and upper period limits, to determine valid samples of a value included between the terminals; if the number of valid samples is greater than a first threshold, determination on the basis of the valid samples of a desired period of the square signal; and at least on the condition that the number of valid samples is less than the first threshold, computation of a plurality of sums of samples, and computation of the average of a set comprising a number of valid period samples and a number of sums from among the plurality of sums of at least two samples.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: June 14, 2022
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Cedrik Djelassi, Jacques Paul Michel Gauvrit, Jean-Francois Jean-Paul Clement Schielin
  • Patent number: 11360225
    Abstract: The present disclosure provides an earthquake evaluation method based on multi-type geophysical data.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: June 14, 2022
    Assignee: Institute of Geology and Geophysics, Chinese Academy of Sciences
    Inventors: Qingyun Di, Fei Tian, Yongyou Yang, Zhongxing Wang, Wenhao Zheng, Renzhong Pei, Wenxiu Zhang
  • Patent number: 11353618
    Abstract: A system and method of detecting subsurface karst features includes receiving surface mapping data. A potential surface pad location can be identified in view of the surface mapping data. A resistivity survey for the potential surface pad location can be designed. The resistivity survey can include at least one long line extending through a surface hole for each of one or more wellbores in the potential surface pad location, and a short line extending through the surface hole of one of the one or more wellbores, each short line intersecting the long line substantially at the surface hole of one of the one or more wellbores. High resistivity areas exceeding approximately 150 Ohm per meter can be identified as sub surface karst features within the resistivity survey.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: June 7, 2022
    Assignee: CONOCOPHILLIPS COMPANY
    Inventors: Phuong Hoang, Khalid A. Soofi, Benjamin Lascaud, Patrick R. Boyle
  • Patent number: 11346971
    Abstract: Systems and methods for generating seismic images of subterranean features including: receiving raw seismic data of a subterranean formation; selecting a portion of the raw seismic data; transforming the selected portion of the raw seismic data from a first domain to a second domain; generating soft constraint data corresponding to the selected portion of the raw seismic data; calculating at least one weight using the generated soft constraint data; generating a weighted transformed data set by applying at least one weight to the transformed selected portion of the raw seismic data; selecting at least one data point of the generated weighted transformed data set; and removing the selected at least one data point from the weighted transformed data set to generate revised seismic data.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: May 31, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Fuhao Qin, Pierre Leger
  • Patent number: 11340056
    Abstract: A method of operating an articulated arm CMM is provided. One or more coordinates on an object can be measured with the articulated arm CMM. At least one of the encoders can then be at least partially powered-off. The encoder can then be powered on and one or more coordinates on the same object can be measured without recalibrating the encoder.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: May 24, 2022
    Assignee: Hexagon Technology Center GmbH
    Inventors: Laurent Desforges, Heinz Lippuner, Knut Siercks, Thibault Duportal, Denis Roux, Jean-Luc Famechon
  • Patent number: 11341410
    Abstract: Machine-learning methods and apparatus are disclosed to determine critical state or other parameters related to fluid-driven failure of a terrestrial locale impacted by anthropogenic activities such as hydraulic fracturing, hydrocarbon extraction, wastewater disposal, or geothermal harvesting. Acoustic emission, seismic waves, or other detectable indicators of microscopic processes are sensed. A classifier is trained using time series of microscopic data along with corresponding data of critical state or failure events. In disclosed examples, random forests and artificial neural networks are used, and grid-search or EGO procedures are used for hyperparameter tuning. Once trained, the classifier can be applied to live data from a fluid injection locale in order to assess a frictional state, assess seismic hazard, assess permeability, make predictions regarding a future fluid-driven failure event, or drive engineering solutions for mitigation or remediation. Variations are disclosed.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: May 24, 2022
    Assignee: Triad National Security, LLC
    Inventors: Paul Allan Johnson, Claudia L. Hulbert, Bertrand Rouet-Leduc
  • Patent number: 11340368
    Abstract: The present disclosure describes methods and systems, including computer-implemented methods, computer program products, and computer systems, for generating a velocity model and a density model for a subsurface region of a hydrocarbon reservoir. One method includes: receiving, by a data processing apparatus, a set of seismic data of the hydrocarbon reservoir; setting, by the data processing apparatus, an initial velocity model and an initial density model; generating, by the data processing apparatus, wavefields of the hydrocarbon reservoir based on the set of seismic data; selecting, by the data processing apparatus, a spatial direction; generating, by the data processing apparatus, a velocity gradient and a reflectivity gradient of the selected spatial direction based on the wavefields; and updating, by the data processing apparatus, the velocity model and the density model using the velocity gradient and the reflectivity gradient of the selected spatial direction.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: May 24, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Yimin Sun, Tong Wang Fei
  • Patent number: 11333780
    Abstract: A method of processing a three-dimensional (3D) seismic dataset includes: producing a relative amplitude preserved (RAP) processed seismic volume that includes a reservoir from the 3D seismic dataset; decomposing the RAP processed seismic volume into a first iso-frequency volume; generating a first overburden sediment interval map and a first reservoir interval zone map for the first iso-frequency volume; generating and outputting a first ratio map for the first iso-frequency volume by dividing the first overburden sediment interval map by the first reservoir interval zone map; and characterizing a fluid content of the reservoir based on the first ratio map.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: May 17, 2022
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Taher M. Sodagar, Ahmed M. Alhamad
  • Patent number: 11327175
    Abstract: A method for determining a substitute distance between a location and a substitute impact point of a projectile in a horizontal plane common with the location, the method determining a target distance between the location and a target arranged on a sight line, and the method determining an elevation angle formed by the sight line with the horizontal plane, wherein an equivalent horizontal distance is calculated as a substitute distance by correcting the target distance with at least one correction coefficient dependent on the elevation angle.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: May 10, 2022
    Inventor: Andreas Zimmermann
  • Patent number: 11320557
    Abstract: A computer system receives a post-stack time-domain image having a first spectrum and representing one or more subsurface structures. The computer system reconstructs an increased-frequency version of the post-stack time-domain image using L0-constrained inversion and a least-squares mismatch ratio. The increased-frequency version of the post-stack time-domain image includes structural artifacts. The computer system removes the structural artifacts from the increased-frequency version of the post-stack time-domain image using singular value decomposition. The computer system combines the increased-frequency version of the post-stack time-domain image with the post-stack time-domain image using a weighting function. The computer system generates a combined version of the increased-frequency version of the post-stack time-domain image and the post-stack time-domain image. The combined version represents the one or more subsurface structures and has a second spectrum broader than the first spectrum.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: May 3, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Yimin Sun, Woodon Jeong, Constantinos Tsingas
  • Patent number: 11320449
    Abstract: A visualization device for a flow field includes a chamber, a power supply, at least one pair of electrodes, and at least one flow field observation module. The flow field observation module includes a high-speed camera, a light detecting component, and a light filter component. The power supply outputs a voltage to generate a plasma, and the pair of electrodes is disposed in the chamber. The flow field observation module is disposed outside the chamber and captures an image of a fluid particle excited by the plasma toward the chamber. The light filter component is disposed between the high-speed camera and the chamber. The light detecting component obtains a light information within the chamber and sends the light information to the light filter component.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: May 3, 2022
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Yung Huang, Yao-Hsien Liu, Kuan-Chou Chen, Yi-Jiun Lin, Shih-Chin Lin, Ching-Chiun Wang
  • Patent number: 11313986
    Abstract: Methods, apparatus, and systems for mapping surface and near surface features and processing artifacts from stacked and processed seismic data are disclosed. In some implementations, a computer system receives a three-dimensional (3D) seismic cube including seismic reflectivity data obtained at a geographical location. The computer system generates a vertical analysis window of the 3D seismic cube. The computer system extracts a second 3D seismic cube from the seismic reflectivity data based on the vertical analysis window. The second 3D seismic cube has multiple vertical amplitude traces associated with the seismic reflectivity data. The computer system generates 3D data comprising multiple frequency traces from the multiple vertical amplitude traces using a domain transform. The computer system generates a two-dimensional (2D) map from the 3D data. The 2D map represents geographical features of the geographical location.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: April 26, 2022
    Assignee: Saudi Arabian Oil Company
    Inventor: Sami N. Awfi
  • Patent number: 11307324
    Abstract: Drilling systems and related methods are disclosed. A drilling systems may include a tool configured to be positioned at an end of a drill string adjacent a drill bit, and the tool may be configured to detect localized seismo-electromagnetic conversion from one or more predetermined positions within a medium ahead of the drill bit. The tool may include two or more pressure sources configured to generate focused acoustic and/or elastic energy at the one or more predetermined positions to generate the localized seismo-electric conversion.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: April 19, 2022
    Assignee: Massachusetts Institute of Technology
    Inventors: Niels Grobbe, Aime Fournier, Laurent Demanet
  • Patent number: 11307318
    Abstract: Provided is a technique that can suppress erroneous determination of noise as an earthquake in a seismic sensor and erroneous output of a shut-off signal. The seismic sensor includes: an earthquake determination unit configured to determine an occurrence of an earthquake based on acceleration measured in a determination period after shifting from a power saving mode to a measurement mode with higher power consumption when measured acceleration exceeds a predetermined threshold; and an index calculator configured to calculate an index value indicating a scale of an earthquake in an earthquake processing period after the determination period, when the earthquake determination unit determines that an earthquake has occurred. The seismic sensor causes output of a shut-off signal when the index value is equal to or larger than a threshold in the earthquake processing period.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: April 19, 2022
    Assignee: Omron Corporation
    Inventors: Hiroyuki Mino, Naotsugu Ueda, Masakazu Suzuki
  • Patent number: 11298297
    Abstract: A baby bottle sensor with content deduction logic is attachable to a baby bottle. The sensor uses programmed logic to deduce whether formula or some other fluid is being fed. Collected data is stored and reported to a paired Bluetooth device.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: April 12, 2022
    Inventor: Zak Wood
  • Patent number: 11294084
    Abstract: According to an example aspect of the present invention, there is provided an apparatus comprising a memory configured to store seismic data, at least one processing core configured to perform a geographic determination, based on the seismic data and reference data, the geographic determination relating to a geographical location of a device that produced the seismic data. In some embodiments, the device that produced the seismic data is comprised in a cloud computing server. In other embodiments, the device that produced the seismic data is integrated in a secure computing element on a motherboard of a computer. In further embodiments, the reference data originates in a trusted seismographic source.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: April 5, 2022
    Assignee: Nokia Technologies Oy
    Inventors: Leo Hippeläinen, Ian Oliver