Patents Examined by Olumide Ajibade-Akonai
  • Patent number: 11073610
    Abstract: Embodiments provide for a portable imager by capturing several radar readings related to an object in an environment over several times from several of Points of View (POV), wherein each radar reading indicates a distance to and reflectivity of the object relative to the imager; capturing several camera images of the environment over the several of times from the several POVs; determining positional shifts of the imager over the several times based on photogrammetrical differences between subsequent camera images of the several camera images; determining, based on accelerometer data, a trajectory that the imager moves in the environment over the several times; determining positions of the imager in the environment over the several times based on the positional shifts and the trajectory; combining the several radar readings based on the positions to produce a synthetic aperture radar image of the object; and outputting the synthetic aperture radar image.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: July 27, 2021
    Assignee: International Business Machines Corporation
    Inventors: Alberto Valdes Garcia, Divya Gopinath, Yahya Mesgarpour Tousi, Daniel Joseph Friedman, Ismael Faro Sertage
  • Patent number: 11060900
    Abstract: A fastening assembly for a radar level-measuring device with an antenna with a main emission direction, comprising a microwave window for the spatial and thermal separation and microwave connection of a first space and a second space with a plate-shaped, disk-shaped barrier at least partially permeable to microwaves, wherein a surface of the barrier oriented towards the antenna includes an angle unequal to 90° with the main emission direction.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: July 13, 2021
    Assignee: VEGA GRIESHABER KG
    Inventors: Klaus Kienzle, Fritz Lenk
  • Patent number: 11061113
    Abstract: The disclosed systems, structures, and methods are directed to an object detection system, employing a receiver configured to receive a signal reflected from an object, an analog-to-digital converter (ADC) configured to convert the received signal into a digital signal, a pre-processor configured to improve a signal-to-noise (SNR) of the digital signal and to generate a pre-processed signal corresponding to the digital signal, a parameter extractor configured to calculate a number of reference cells M and a multiplication factor K0, and a Constant False Alarm Rate (CFAR) processor configured to analyze a cell-under-test (CUT) and M reference cells in accordance with the number of reference cells M and the multiplication factor K0 to detect the presence of the object.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: July 13, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ali Ahmed Ali Massoud, Zhiping Jiang, Hongbiao Gao
  • Patent number: 11061130
    Abstract: A radar apparatus includes: a detection portion that transmits a radio wave to a target and receives a radio wave reflected on the target so as to detect instantaneous data; and an allocation portion that allocates the instantaneous data to prediction data of the target so as to take continuity of the target; and the allocation portion corrects velocity of the instantaneous data and velocity of the prediction data respectively as velocities made in line with a predetermined direction set as a reference, so as to allocate the instantaneous data to the prediction data based on at least magnitudes of the respectively corrected velocities.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: July 13, 2021
    Assignee: DENSO TEN Limited
    Inventors: Seiya Fujitsu, Shinya Aoki
  • Patent number: 11054504
    Abstract: An avian detection system for determining risks of collision between a collision object and bird objects includes avian radar system(s) providing a first type of information data relating to objects detected, and a transponder receiver receiving transponder data transmitted or broadcasted by transponders provided at the collision objects. Processors are configured to receive first type of information data corresponding to the detected objects and provide radar plots. The processors are further configured to receive the transponder data and provide transponder plots, to create and store a number of object tracks based on the provided radar plots and transponder plots, with each track holding object data corresponding to or determined from data of matching plots, and to determine one or more risks of collision or collision risk levels for the collision object based on object data of a plurality of the obtained object tracks.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: July 6, 2021
    Assignee: Robin Radar Facilities BV
    Inventors: Siete Hamminga, Anthonie van Lieburg
  • Patent number: 11054512
    Abstract: The invention relates to a frequency converter circuit for a radar-based distance-measuring device. The core of the frequency converter circuit is a non-linear, high-frequency component, having a frequency connection point and a signal connection point, which serves as a signal input for a low-frequency input signal. On the reception side, the frequency converter circuit comprises at least one receiving antenna for receiving the high-frequency reception signal and a non-linear semiconductor component for downconverting the high-frequency reception signal. The frequency converter circuit therefore uses the effect that, by means of the low-frequency input signal, corresponding harmonic waves are induced at the non-linear, high-frequency component. Furthermore, the high-frequency reception signal is downconverted into a low-frequency evaluation signal, whereby the further determination of the distance can be performed on the basis of the low-frequency evaluation signal, which can be processed more easily.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: July 6, 2021
    Assignee: Endress+Hauser SE+Co. KG
    Inventors: Thomas Blödt, Peter Klöfer
  • Patent number: 11054516
    Abstract: Embodiments are provided for a radar system including: an N number of transmit antennas; a chirp generator configured to produce linear chirp waveforms; an N number of phase shift keying (PSK) coders, each assigned a respective optimized transmitter code of a set of optimized transmitter codes, each optimized transmitter code of the set comprises a sequence of K code chips, each optimized transmitter code of the set is orthogonal to every other optimized transmitter code of the set, spectral analysis of a cross-correlation between any two optimized transmitter codes results in sidelobes no greater than a predetermined detection threshold, each PSK coder encodes K linear chirp waveforms according to the sequence of K code chips of the respective optimized transmitter code and produces a respective optimized coded chirp sequence, and each of the N transmit antennas outputs the respective optimized coded chirp sequence at the same time.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: July 6, 2021
    Assignee: NXP USA, INC.
    Inventors: Ryan Haoyun Wu, Chunshu Li, Arunesh Roy
  • Patent number: 11047953
    Abstract: A target detection and/or high resolution RF system is provided herein in which the resolution of a legacy target angle detection (direction of arrival) system is improved without any change to the existing hardware of the legacy target detection system. Rather, the target detection and/or high resolution RF system can apply virtual aperture postprocessing to reflected signals to achieve improvements in the detection of one or more targets.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: June 29, 2021
    Assignee: Scidea Research, Inc.
    Inventor: Pat Sankar
  • Patent number: 11047947
    Abstract: The present invention is enclosed in the area of wireless communication systems, generally towards the problem of multipath interference, and specifically towards mitigating the effect of standing wave in indoor positioning systems. The present invention includes a standing wave cancellation wireless transmitter configured to, for each signal with wavelength ? to be transmitted, transmit a first wave with wavelength ? and a second wave with wavelength ? and a shift equal to half the wavelength ?. It is also part of present invention a standing wave cancellation wireless receiver configured to perform the average of a first wave with wavelength ? and a second wave with wavelength ? and a shift equal to half the wavelength ?, creating a single received signal and a system comprising at least one of said wireless transmitters and at least one of said wireless receivers and a method implemented by the said transmitter and receiver.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: June 29, 2021
    Assignee: INSTITUTO POLITÉCNICO DE LEIRIA
    Inventors: Josip Bagaric, Joäo Da Silva Pereira, Silvio Priem Mendes
  • Patent number: 11041940
    Abstract: A system for phase-modulated radar detection, preferably including one or more transmitter arrays, receiver arrays, and signal processors. A method for phase-modulated radar detection, preferably including transmitting a set of probe signals, receiving a set of reflected probe signals, and/or decoding the set of received probe signals, and optionally including evaluating effects of phase variance and/or modifying probe signal characteristics.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: June 22, 2021
    Assignee: Oculii Corp.
    Inventors: Lang Hong, Steven Hong
  • Patent number: 11029403
    Abstract: Systems and method are provided for three-dimensional (3D) imaging by using Doppler and interferometric processing techniques for general planar phased arrays. Systems and methods according to embodiments of the present disclosure incorporate motion compensation techniques in a way that utilizes the full aperture of a phase array. Embodiments of the present disclosure can be applied to a variety of different radar imaging modalities, including X-band and millimeter wave (MMW) regimes.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: June 8, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Raghu G. Raj, Christopher T. Rodenbeck
  • Patent number: 11027822
    Abstract: Systems and methods for touchless operation of mechanical input devices are disclosed. In embodiments, a control system includes a mechanical input device, a RADAR sensor, and a controller in communication with the mechanical input device and the RADAR sensor. The RADAR sensor is in proximity to the mechanical input device and configured to track user hand and finger movements. The controller is configured to detect a gesture indicating a user action corresponding to a manipulation of the mechanical input device based on the user hand and finger movements tracked by the RADAR sensor. The controller is further configured to generate a control signal based upon the user action.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: June 8, 2021
    Assignee: Rockwell Collins, Inc.
    Inventor: Sangram Keshari Swain
  • Patent number: 11029188
    Abstract: A radar fill level measurement device for fill level measurement or for recording a topology of a filling material surface in a container is provided, including: a circuit board including a first radar chip on a first circuit board surface and a second radar chip on a second circuit board surface, the first chip and the second chip each including one or more transmission channels configured to generate a transmission signal, and one or more reception channels configured to receive the transmission signal reflected at the filling material surface, at least one of the transmission channels of the first chip being connected, via a first line, to an antenna assembly for radiating the transmission signal, and at least one of the reception channels of the second adar chip being connected, via a second line, to the antenna assembly for receiving the reflected transmission signal.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 8, 2021
    Assignee: VEGA Grieshaber KG
    Inventors: Steffen Waelde, Roland Welle
  • Patent number: 11029388
    Abstract: A method is described that, according to one exemplary embodiment, involves the following: generating a first radio frequency (RF) signal by a first RF oscillator and a second RF signal by a second RF oscillator, mixing the first RF signal and the second RF signal by a mixer to generate a mixer output signal, digitizing the mixer output signal to generate a digitized signal, and calculating an estimate for a power spectral density of the mixer output signal from the digitized signal. Based on the estimate for the power spectral density of the mixer output signal, an estimate for a noise power spectral density characterizing the noise contained in the first and the second RF signals is calculated.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: June 8, 2021
    Inventors: Alexander Melzer, Michael Gerstmair, Mario Huemer, Alexander Onic, Christian Schmid, Rainer Stuhlberger
  • Patent number: 11015970
    Abstract: A radar level measurement device for level measurement or for determining a topology of a filling material surface in a container is provided, including a first radar chip and a second radar chip, the first radar chip including a first synchronisation circuit configured to generate a radio-frequency signal, and the second radar chip including a second synchronisation circuit; and a radio-frequency line assembly configured to transmit the radio-frequency signal from the first synchronisation circuit to the second synchronisation circuit to synchronise the first and the second radar chips, the radio-frequency line assembly including two or more different line types arranged in series with one another.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: May 25, 2021
    Assignee: VEGA GRIESHABER KG
    Inventors: Steffen Waelde, Roland Welle
  • Patent number: 11017571
    Abstract: The system is configured to generate a display of a tagging interface. The tagging interface may include a stitching selector. In response to a user selection of (1) a destination element that includes a first name identifier, (2) a source element that includes at least one of the plurality of pixels such that at least one of the plurality of pixels corresponding to longitude-time points comprising a second name identifier, and (3) the stitching selector, the system can be configured to indicate that the source element comprises the first name identifier.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: May 25, 2021
    Assignee: ExoAnalytic Solutions, Inc.
    Inventors: Douglas Lee Hendrix, William Alexander Therien
  • Patent number: 11012140
    Abstract: A device for receiving and re-radiating electromagnetic signals. The device is configured to be attached with a construction supply. The device includes an electromagnetically floating group of resonating sections to form a propagation path to guide electromagnetic energy of the electromagnetic signals from one side of the construction supply to another side of the construction supply. The electromagnetically floating group of resonating sections includes at least a first resonating section and a second resonating section positioned in a near field of the adjacent, first resonating section in the direction of the propagation path. The disclosed embodiments also relates to a method for receiving and re-radiating electromagnetic signals by a device attached with a construction supply.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: May 18, 2021
    Assignee: StealthCase Oy
    Inventor: Janne Mansikkamäki
  • Patent number: 11002829
    Abstract: Methods and apparatuses pertaining to radar interference mitigation are described. A processor associated with an apparatus may generate a plurality of wave frames such that one or more aspects of the plurality of wave frames vary from one wave frame to another wave frame of the plurality of wave frames. Each of the plurality of wave frames may respectively include a plurality of chirps. A wireless transmitter associated with the apparatus may transmit the plurality of wave frames. A wireless receiver associated with the apparatus may receive one or more reflected waves comprising at least a portion of one or more of the wave frames reflected by an object. The processor may determine a distance between the object and the apparatus, a speed of the objet, or both, based on an analysis of the one or more reflected waves.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: May 11, 2021
    Inventors: Chih-Ming Hung, Khurram Muhammad
  • Patent number: 10996317
    Abstract: An object detection apparatus includes an object detecting unit, a temporary determination unit a speed acquiring unit, and a final determination unit. The object detecting unit detects a pedestrian or a two-wheeled vehicle as an object that is present in a periphery of an own vehicle by performing image processing on a captured image capturing an advancing direction of the own vehicle. The temporary determination unit temporarily determinates a type of the object detected by the object detecting unit by analyzing the captured image. The speed acquiring unit acquires a movement speed of the object using reflected waves of a carrier wave. The final determination unit finally determines the type of the object temporarily determined by the temporary determination unit using the movement speed acquired by the speed acquiring unit.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: May 4, 2021
    Assignee: DENSO CORPORATION
    Inventor: Takahiro Baba
  • Patent number: 10992053
    Abstract: An apparatus includes a waveguide of an antenna block configured to propagate electromagnetic energy along a propagation direction. The antenna block includes a port located on a bottom surface of the antenna block and an antenna array located on a top surface of the antenna block. The antenna block further includes a set of waveguides in the antenna block configured to couple the antenna array to the port. Additionally, the antenna block includes at least one surface wave radiator, where the surface wave radiator is located on the top surface of the antenna block.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: April 27, 2021
    Assignee: Waymo LLC
    Inventors: Jamal Izadian, Russell Smith