Patents Examined by Bernarr E. Gregory
  • Patent number: 11307298
    Abstract: The present disclosure relates to position, navigation and timing (PNT) methods, systems, and transmitters. A method comprises receiving radio-frequency (RF) signals from a plurality of virtual transmitters and determining PNT information of a target object based on information obtained from the RF signals. A system comprises a plurality of virtual transmitters and a receiver. The plurality of virtual transmitters is configured to transmit radio-frequency (RF) signals that include PNT information. The receiver is configured to determine PNT information of a target object based on the PNT information. A transmitter comprises a high-frequency (HF) carrier generator, a waveform generator, and an antenna system. The HF carrier generator generates an HF carrier signal. The waveform generator generates a waveform that includes PNT information. The antenna system transmits the HF carrier signal to generate a subject ionospheric duct.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: April 19, 2022
    Assignee: Raytheon Company
    Inventor: Kenneth V. Miller
  • Patent number: 11307304
    Abstract: An object detection device includes: first and second transmission/reception units transmitting and receiving an exploration wave to detect a peripheral object; and a processing unit determining a position of an object based on reception results of the first and second transmission/reception units. The processing unit calculates a first point based on first and second exploration waves, calculates a second point based on third and fourth exploration waves, determines that the object exists on a line segment interconnecting the first and second points when a distance between the first and second points is less than a predetermined value, and determines that the object exists on the line segment and line segments extended from both ends of the line segment when the distance between the first and second points is equal to or greater than the predetermined value.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: April 19, 2022
    Assignee: AISIN CORPORATION
    Inventors: Kaoru Nakagaki, Moritaka Miwa, Masato Sugiyama, Tsubasa Kamiya
  • Patent number: 11300679
    Abstract: Disclosed are an apparatus for selecting a radar installation site for configuring a radar observation network and a method thereof. That is, according to the present invention, an optimal radar observation site is selected through a digital elevation model, GIS information, a beam shield simulation, a propagation environment survey, etc., to collect higher accurate radar data and shorten a time required for a radar installation preliminary survey, etc.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: April 12, 2022
    Assignee: Korea Meteorological Administration
    Inventors: Youn Choi, Sung-Hwa Jung, Woomi Jung, Young-A Oh, Hae-Lim Kim
  • Patent number: 11300384
    Abstract: An optical detection device is included in a self-guided flying vehicle, the self-guided flying vehicle being composed of a cone located at the head of the self-guided flying vehicle, a propulsion device located at the rear of the self-guided flying vehicle and a body located between the cone and the propulsion device. The optical detection device includes at least two portholes disposed in a collar on the periphery of the body of the self-guided flying vehicle.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: April 12, 2022
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Arnaud Davenel, Daniel Marie
  • Patent number: 11300389
    Abstract: A rear slip base plate for a round carrying a guidance and control unit payload, which round is launched from a rifled launch tube. To prevent the guidance and control unit payload from also being rapidly spun with the round, the slip base plate unit mechanically isolates the guidance and control unit payload from the round spin rate.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: April 12, 2022
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventor: Seungeuk Han
  • Patent number: 11294068
    Abstract: A method is provided for calibrating a test platform including a plurality of system outputs to align RF signals generated by the system outputs. RF power of a combined RF signal is detected, where the combined RF signal is from a reference RF signal generated by a reference system output in the plurality of system outputs and a test RF signal generated by a test system output in the plurality of systems outputs. A phase of the test RF signal is iteratively shifted relative to the reference RF signal until the detected RF power reaches a minimum. The test RF signal is inverted to be in-phase with the reference RF signal when the combined RF power reaches the minimum. A system is also provided for calibrating a test platform including a plurality of system outputs to align RF signals generated by the system outputs.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: April 5, 2022
    Assignee: Spirent Communications, PLC
    Inventors: Neil Christopher Pearse, Mark Geoffrey Holbrow
  • Patent number: 11294019
    Abstract: A mobile radio direction finding (RDF) calibrator, and a method of using it to calibrate an RDF system aboard a vehicle. The calibrator has a GPS (global positioning satellite) or other GNSS (global navigation satellite system) receiver, which permits the calibrator to make its location known to the calibration process of the RDF-equipped vehicle. During calibration, the calibration process controls the calibrator remotely. As the RDF-equipped vehicle moves in a circle, it collects calibration response data, as well as location data, so that the calibration response data can be mapped to the correct azimuth.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: April 5, 2022
    Assignee: Southwest Research Institute
    Inventors: Steven P. Saulnier, Benjamin S. Davis, Patrick D. Hanrahan, Mike J. Herring
  • Patent number: 11293881
    Abstract: The present disclosure describes methods and systems, including computer-implemented methods, computer program products, and computer systems, for measuring a water cut for hydrocarbon fluid in a production pipe. One method includes transmitting a microwave through a first waveguide attached to a production pipe, wherein the microwave is directed to the hydrocarbon fluid in the production pipe; and obtaining, measurement results based on reflection or propagation of the microwave, wherein the measurement results are used to determine a water cut of the hydrocarbon fluid.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: April 5, 2022
    Assignee: Saudi Arabian Oil Company
    Inventor: Jose Oliverio Alvarez
  • Patent number: 11294067
    Abstract: A method and system are herein provided. The method may include receiving a GNSS signal, determining a normalized correlation window of the GNSS signal, determining an early sidelobe lock (Elock), a late sidelobe lock value (Llock), and main sidelobe lock (Mlock) value based on the normalized correlation window, determining an early sidelobe lock (Elock), a late sidelobe lock value (Llock), and main sidelobe lock (Mlock) value based on the normalized correlation window, and determining an early sidelobe lock (Elock), a late sidelobe lock value (Llock), and main sidelobe lock (Mlock) value based on the normalized correlation window.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: April 5, 2022
    Inventor: Gary Lennen
  • Patent number: 11294047
    Abstract: Embodiments of the present specification provide a target recognition method, apparatus, and system. The method comprises: obtaining an image recognition result and a radio frequency recognition result of target objects in a target region, and then determining the distribution of the target objects in the target region according to the radio frequency recognition result and the image recognition result. Since the radio frequency recognition result and the image recognition result are fused, the target objects in the target region can be accurately recognized, so as to improve the recognition accuracy.
    Type: Grant
    Filed: April 18, 2020
    Date of Patent: April 5, 2022
    Assignee: SENSETIME INTERNATIONAL PTE. LTD.
    Inventors: Daming Niu, Jin Wu, Kaige Chen, Haiyu Zhao, Shuai Yi
  • Patent number: 11294045
    Abstract: A vehicle information providing apparatus repeatedly acquires observation point information. The apparatus calculates at least one position of the predicted point. When the observation point information is acquired, the apparatus extracts a predicted point that can be connected to the observation point from the calculated predicted points. The apparatus calculates the position of the current filtered point based on the position of the current observation point and the position of the latest predicted point. When the observation point information of a new object (an object having no latest predicted point connectable to the observation point) is acquired, the device sets initial vectors. The apparatus calculates the position of the predicted point at time instants succeeding the current time instant for each of the traveling directions indicated by the initial vectors.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: April 5, 2022
    Assignee: DENSO CORPORATION
    Inventors: Yusuke Akamine, Mitsuyasu Matsuura, Yasuyuki Miyake
  • Patent number: 11287222
    Abstract: The fuse mode of a laser guided munition is remotely set and/or changed by encoding fuse mode information onto fuse mode designating light received by the light detector of the munition. Embodiments do not require hardware modification of existing munitions and/or control systems. The mode designating light can be the target designating laser light, and the fuse mode information can be encoded together with counter counter measure (CCM) information. Or the mode designating light source can be a separate laser or non-laser light source. Encoding of the fuse mode information can be by modulation and/or wavelength selection of the mode designating light. In embodiments, the fuse mode can be selected before and/or after launch of the munition.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: March 29, 2022
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Richard Janik
  • Patent number: 11287513
    Abstract: A radar device for a motor vehicle comprises a radar antenna configured to detect a reflected signal characterized as a reflection of a transmitted signal reflected by an object present in the field of view of the radar antenna; a controller configured to transmit at least one radar signal from the radar antenna, the radar signal being transmitted according to a determined object detection transmission power; the controller being configured to detect the power level of the reflected signal derived from the transmitted radar signal reflected by the detected object; the controller being configured to adjust the transmission power, according to the power level of the reflected signal detected, to a minimum power sufficient for the detection of the detected object.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: March 29, 2022
    Assignee: Aptiv Technologies Limited
    Inventors: Jerome Vermersch, Azziz Maroc, Jerome Coudre
  • Patent number: 11280899
    Abstract: A method of identifying a target from synthetic aperture radar (SAR) data without incurring the computational load associated with generating an SAR image. The method includes receiving SAR data collected by a radar system including RF phase history data associated with reflected RF pulses from a target in a scene, but excluding an SAR image. Range profile data is determined from the SAR data by converting the RF phase history data into a structured temporal array that can be applied as input to a classifier incorporating a recurrent neural network, such as a recurrent neural network made up of long short-term memory (LSTM) cells that are configured to recognize temporal or spatial characteristics associated with a target, and provide an identification of a target based on the recognized temporal or spatial characteristic.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: March 22, 2022
    Assignee: THE BOEING COMPANY
    Inventors: Qin Jiang, David Payton, Adour Vahe Kabakian, Joshua Haug, Brian N. Limketkai
  • Patent number: 11280880
    Abstract: A radar system includes an electronically scanned array of dual orthogonal linearly polarized radiating elements. Each of the radiating elements is fed by a switch driven by a radar processing unit. The switch successively places each radiation element in a vertically polarized configuration and horizontally polarized configuration so that the antenna can transmit and receive both vertically and horizontally polarized images within the radar epoch/pulse timing sequence of the radar system. The vertically polarized image and horizontally polarized image are sufficiently close in time to be collated to form a multi-dimensional image. The switch may be driven at rates other than the radar system clock as dictated by algorithms for detecting weather related threats.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: March 22, 2022
    Assignee: Rockwell Collins, Inc.
    Inventor: James B. West
  • Patent number: 11280912
    Abstract: Various embodiments of the present technology generally relate to localization of one or more radio frequency interference (RFI) emitters. More specifically some embodiments relate to localization of RFI emitters that interfere with Global Navigation Satellite System (GNSS) receivers by integrating the location estimates of two or more localization techniques. Various embodiments may be used to more accurately estimate an interference source (e.g., an RFI emitter's location) than each localization technique separately.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: March 22, 2022
    Assignee: The Regents of the University of Colorado
    Inventors: Dennis M. Akos, Ryan Blay, Nagaraj Channarayapatna Shivaramaiah
  • Patent number: 11280895
    Abstract: A harmonic reflector circuit comprising an antenna connected to a non-linear circuit via a matching circuit, wherein the harmonic reflector circuit is configured to receive a signal at a receive frequency (fRX), and configured to transmit said received signal at a transmit frequency (fTX), where the transmit frequency is a multiple of the receive frequency, the harmonic reflector circuit wherein the receive frequency (fRX) is in an interval from a first frequency to a second frequency, where the first frequency is at least 800 MHz; and the second frequency is at least 34 MHz larger than the first frequency; the received signal is transmitted at the transmit frequency (fTX) with an output power (Pout) of at least 70% of the maximum available output power (Pmax).
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: March 22, 2022
    Assignee: Recco Invest AB
    Inventors: Magnus Granhed, Tomas Forssén
  • Patent number: 11280915
    Abstract: A satellite radio wave receiving device including: one or more processors configured to: cause a receiver to start a receiving operation of receiving radio waves from positioning satellites; perform a current position calculation to calculate a current position based on the radio waves received; calculate a positioning accuracy of the current position; decide whether or not to adopt the current position based on a number of positioning satellites from which the receiver has received radio waves and the positioning accuracy; in response to deciding to adopt the current position, cause the receiver to stop the receiving operation; and in response to deciding to not adopt the current position, cause the receiver to continue the receiving operation of receiving radio waves from the positioning satellites and repeat performance of the current position calculation to calculate current positions based on the radio waves received during the continued receiving operation.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: March 22, 2022
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Takeshi Matsue
  • Patent number: 11275174
    Abstract: A method is provided that includes a vehicle receiving data from an external computing device indicative of at least one other vehicle in an environment of the vehicle. The vehicle may include a sensor configured to detect the environment of the vehicle. The at least one other vehicle may include at least one sensor. The method also includes determining a likelihood of interference between the at least one sensor of the at least one other vehicle and the sensor of the vehicle. The method also includes initiating an adjustment of the sensor to reduce the likelihood of interference between the sensor of the vehicle and the at least one sensor of the at least one other vehicle responsive to the determination.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: March 15, 2022
    Assignee: Waymo LLC
    Inventors: Larry Smith, Filip Perich, Timothy Campbell, Michael Marx
  • Patent number: 11269059
    Abstract: A method is described for locating and/or classifying at least one object, a radar sensor that is used including at least one transmitter and at least one receiver for radar waves. The method includes: the signal recorded by the receiver is converted into a two- or multidimensional frequency representation; at least a portion of the two- or multidimensional frequency representation is supplied as an input to an artificial neural network, ANN that includes a sequence of layers with neurons, at least one layer of the ANN being additionally supplied with a piece of dimensioning information which characterizes the size and/or absolute position of objects detected in the portion of the two- or multidimensional frequency representation; the locating and/or the classification of the object is taken from the ANN as an output.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: March 8, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Kanil Patel, Kilian Rambach, Michael Pfeiffer