Patents Examined by Vladimir Magloire
  • Patent number: 11994575
    Abstract: A method for dithering radar frames includes determining at least one of a chirp period Tc for radar chirps in a radar frame and a chirp slope S for radar chirps in the radar frame. In response to determining the chirp period Tc, a maximum chirp dither ?c(max) is determined, and for the radar frame N, a random chirp dither ?c(N) between negative ?c(max) and positive ?c(max) is determined. In response to determining the chirp slope S, a maximum slope dither ?(max) is determined, and for the radar frame N, a random slope dither ?(N) between negative ?(max) and positive ?(max) is determined. A radar sensor circuit generates radar chirps in the radar frame N based on the at least one of (1) the chirp period Tc and the random chirp dither ?c(N) and (2) the chirp slope S and the random slope dither ?(N).
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: May 28, 2024
    Assignee: Texas Instruments Incorporated
    Inventors: Sandeep Rao, Anand Dabak
  • Patent number: 11994610
    Abstract: The disclosure provides a Lorentz constraint angle estimation method and a system in a non-Gaussian environment; the method includes the following steps: constructing an N-time slot received signal model based on a non-Gaussian noise environment to obtain a reflected signal; constructing a cost model based on Lorentz norm by a difference value between an actual received signal and the reflected signal, and performing an angle estimation by combining with an atomic norm to obtain a signal sparse reconstruction model; constructing an augmented Lagrangian function by the signal sparse reconstruction model, and carrying out the iterative update on the augmented Lagrangian function to obtain a reconstructed signal; and analyzing the reconstructed signal and searching spectral peaks globally to obtain spatial spectral peak points, and completing an angle estimation of the reconstructed signal.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: May 28, 2024
    Assignee: ANHUI UNIVERSITY
    Inventors: Liping Li, Lei He, Yingsong Li, Canping Yu, Run Ying
  • Patent number: 11988771
    Abstract: Systems and methods for determining a presence of cargo within a container are described. The determination may comprise transmitting a first electromagnetic signal within the container and receiving a first reflected electromagnetic signal corresponding to the first electromagnetic signal. The first reflected electromagnetic signal may be converted into a set of first magnitude values corresponding to a set of bin values representing a respective distance from the radar device. The first magnitude values may be integrated, using a moving window, over successive subranges of bin values to produce a set of integrated magnitude values. A set of integrated base magnitude values may be subtracted from the set of integrated magnitude values to produce a set of normalized integrated magnitude values. A presence of cargo within the container may then be determined by comparing each of the normalized integrated magnitude values with corresponding threshold values.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: May 21, 2024
    Assignee: BlackBerry Limited
    Inventors: Yu Gao, Mahendra Fuleshwar Prasad, Alexander Karl Levato, Scott Leonard Dill
  • Patent number: 11982753
    Abstract: A method for performing in a positioning, navigation, tracking, frequency-measuring, or timing system is provided.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: May 14, 2024
    Assignee: FOCAL POINT POSITIONING LIMITED
    Inventors: Ramsey Faragher, Nicolas Couronneau, Robert Mark Crockett
  • Patent number: 11982760
    Abstract: A MIMO radar sensor includes: an antenna arrangement including first and second arrays, in each of which a respective plurality of antennas are offset relative to one another in a first direction, the first and second arrays being offset from each other in a second direction that is perpendicular to the first direction, the antennas of the first and second arrays being more strongly focused in the second direction than in the first direction in each case, and, in each of at least one of the first and second antenna arrays, at least two of the antennas of the respective array being offset from one another in the second direction and the antennas of the respective array being symmetrically arranged relative to an axis running in the second direction; a high frequency element; and a control and evaluation device for evaluating output from the high frequency element regarding the antennas.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: May 14, 2024
    Assignee: ROBERT BOSCH GMBH
    Inventors: Arthur Hipke, Benedikt Loesch
  • Patent number: 11982562
    Abstract: A radar level gauge system include a transceiver; an antenna; a hollow waveguide for guiding the transmit signal from a first end facing the transceiver towards a second end facing the antenna; a housing including a heat-dissipating structure arranged at a first distance from the second end; a first thermal connection between the hollow waveguide and the heat-dissipating structure; and a second thermal connection between the hollow waveguide and the housing arranged at a second distance, shorter than the first distance, from the second end. The first and second thermal connection are arranged such that a thermal resistance of a first heat conduction path from the second end of the hollow waveguide through the first thermal connection to the heat-dissipating structure, is lower than a thermal resistance of a second heat conduction path from the second end of the hollow waveguide through the second thermal connection to the housing.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: May 14, 2024
    Assignee: ROSEMOUNT TANK RADAR AB
    Inventor: Stig Larsson
  • Patent number: 11984970
    Abstract: A system includes at least one reception unit installed in an aircraft and configured for tracking satellites of the satellite navigation system of the GNSS type. The system includes a generation unit for generating an expected number corresponding to the number of satellites that the reception unit is expected to track, a detection unit including a comparison part for comparing the expected number with a tracked number corresponding to the number of satellites that the reception unit is actually tracking and a decision part for detecting a jamming, as a function of the result of the comparison made by the comparison part and transmitting detection data in the event of detection, and a transmission unit configured to transmit jamming detection data to at least one user device, the system making it possible to detect a jamming of a GNSS system in an automatic and reliable manner.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: May 14, 2024
    Assignee: Airbus Operations (S.A.S.)
    Inventors: Laurent Azoulai, Philippe Delga, François Tranchet, Rémy Lazzerini, Jean Pasquie, Ludovic Parisot, Philippe Merceron
  • Patent number: 11965956
    Abstract: Techniques are discussed for determining reflected returns in radar sensor data. In some instances, pairs of radar returns may be compared to one another. For example, a reflection point may be determined from a first position of a first radar return and a second position of a second radar return. Additional data, e.g., sensor data and/or map data, may be used to determine the presence of objects in the environment. The first return or the second return may be a reflected return if an object is disposed at the reflection point. In some instances, a vehicle, such as an autonomous vehicle, may be controlled at the exclusion of information from reflected returns.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: April 23, 2024
    Assignee: ZOOX, INC.
    Inventors: Chuang Wang, Joshua Kriser Cohen
  • Patent number: 11959996
    Abstract: A radar device, for example for automotive applications, comprises a radar circuit, an antenna device and a signal processing device, wherein the radar circuit is configured to transceive a first antenna signal and a second antenna signal, wherein the first antenna signal occupies a first frequency band and the second antenna signal occupies a second frequency band that is separate from the first frequency band, wherein the antenna device is configured to transduce the first antenna signal via a first antenna of the antenna device and the second antenna signal via a second antenna of the antenna device, and wherein the signal processing device comprises a ranging module that is configured to jointly process the first and second antenna signal to determine a distance to a target object irradiated by the antenna device.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: April 16, 2024
    Assignee: Aptiv Technologies AG
    Inventors: Dennis Vollbracht, Alexander Ioffe
  • Patent number: 11959998
    Abstract: The techniques of this disclosure enable frequency-modulated continuous-wave radar-based detection of living objects. Instead of generating a chirp pattern with each chirp separated by an idle period, a radar generates a chirp pattern with multiple chirps separated by an idle period. From applying a Fourier transform to receiver signals for each frame, the radar determines an amplitude as a function of range for each frame. The radar computes the standard deviation between the amplitudes of two frames and then, for each additional frame, the radar incrementally updates the standard deviation to be inclusive of the amplitude contribution of the additional frame. That is, rather than recalculate the standard deviation for each new frame, the radar increments the standard deviation by a fraction of the amplitude for the new frame, which is proportionate to the total quantity of frames generated thus far.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: April 16, 2024
    Assignee: Aptiv Technologies AG
    Inventors: Zhengyu Peng, James F. Searcy, Ashikur Rahman
  • Patent number: 11953583
    Abstract: A radar assembly and a method for operating the radar assembly is disclosed, where a first frequency comb generator is arranged in the transmitting unit between the first oscillator and the transmitting antenna and a second frequency comb generator is arranged in the receiving unit between the second oscillator and the first mixer. On the transmitter side a first frequency comb generator is controlled with the first oscillator frequency in order to generate a primary signal containing a plurality of frequency components, on the receiver side a second frequency comb generator is controlled with a second oscillator frequency in order to generate an output signal containing a plurality of frequency components, the output signal generated in such a way is mixed with a third oscillator frequency, and the intermediate frequency is generated by mixing the received reflected signal with the mixed signal.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: April 9, 2024
    Assignee: Technische Universität Dresden
    Inventors: Martin Laabs, Dirk Plettemeier
  • Patent number: 11927469
    Abstract: The present invention relates to a method of proof-testing a radar level gauge system arranged to determine a filling level of a product in a tank, the method comprising the steps of: transmitting an electromagnetic transmit signal towards a surface of the product in the tank; receiving an electromagnetic reflection signal resulting from reflection of the transmit signal at the surface of the product; forming a measurement representation based on the transmit signal and the reflection signal, the measurement representation comprising surface echo information indicative of the filling level of the product; adding, to the measurement representation, proof test echo information indicative of a predefined proof test level, resulting in a modified measurement representation; processing the modified measurement representation to determine a proof test level based on the modified measurement representation; and providing a signal indicative of a result of the processing.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: March 12, 2024
    Assignee: ROSEMOUNT TANK RADAR AB
    Inventors: Mikael Inglund, Tobias Lilja, Tomas Wennerberg, Lars-Ove Larsson, Pär Abrahamsson, Christian Skaug
  • Patent number: 11927665
    Abstract: A method for operating a stepped frequency radar system is disclosed. The method involves receiving digital frequency control signals that correspond to different frequencies of radio frequency (RF) signals, and performing stepped frequency scanning across a frequency range using at least one transmit antenna and a two-dimensional array of receive antennas and RF signals at the different frequencies that correspond to the digital frequency control signals.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: March 12, 2024
    Assignee: MOVANO INC.
    Inventor: Michael A. Leabman
  • Patent number: 11919479
    Abstract: The systems and methods disclosed herein are configured to provide security to a vehicle. A system includes a point measurement device inside a space of a vehicle. The system identifies a threat if points that differ from a calibrated set of points are localized in an area of the space.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: March 5, 2024
    Assignee: Ford Global Technologies, LLC
    Inventors: Tarik Safir, Sam Harris, Jamie Mahmutyazicioglu, Jonathan Hannaford, Endre Hanak
  • Patent number: 11921188
    Abstract: A method for determining direction information for at least one target object in a radar system for a vehicle. The first detection information is provided by at least two receive antennas of the radar system, wherein the first detection information is specific for a first radar signal transmitted by a first transmit antenna of the radar system. The second detection information is provided by the at least two receive antennas of the radar system, wherein the second detection information is specific for a second radar signal transmitted by a second transmit antenna of the radar system. A first angle determination and a second angle determination are performed. At least one comparison of the first angle information with the second angle information is performed in order to detect an ambiguity in the first angle determination for the determination of the direction information.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: March 5, 2024
    Assignee: Hella GmbH & Co. KGaA
    Inventors: Tobias Breddermann, Andreas Von Rhein, Christian Westhues
  • Patent number: 11906655
    Abstract: The invention relates to a radar system for capturing surroundings of a moving object, in particular a vehicle and/or a transportation apparatus, such as a crane, in particular, wherein the system is mounted or mountable on the moving object, wherein the radar system comprises at least two non-coherent radar modules (RM 1, RM 2, . . . RM N) having at least one transmitter antenna and at least one receiver antenna, wherein the radar modules (RM 1, RM 2, . . . RM N) are arranged or arrangeable in distributed fashion on the moving object, wherein provision is made of at least one evaluation device which is configured to process transmitted and received signals of the radar modules to form modified measurement signals in such a way that the modified measurement signals are coherent in relation to one another.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: February 20, 2024
    Assignee: Symeo GmbH
    Inventors: Martin Vossiek, Michael Gottinger, Peter Gulden, Mark Christmann, Christoph Mammitzsch
  • Patent number: 11899133
    Abstract: A method for determining at least one object information item of at least one target object (18) which is sensed with a radar system (12) of a vehicle (10), a radar system (12) and a driver assistance system (12) are described. Transmission signals (32a, 32b, 32c) are transmitted into a monitoring range (14) of the radar system (12) with three transmitters (Tx1, Tx2, Tx3). Echoes, which are reflected at the at least one target object (18), of the transmission signals (32a, 32b, 32c) are received as received signals (34a, 34b, 32c) with at least two receivers (RxA, RxB, RxC, RxD). The received signals (34a, 34b, 34c) are subjected to at least one multi-dimensional discrete Fourier transformation. At least one target signal is determined from the result of the Fourier transformation. An object information item is determined from the target signal.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: February 13, 2024
    Assignee: VALEO SCHALTER UND SENSOREN GMBH
    Inventors: Christian Sturm, Hamid Afrasiabi Vayghan, Yoke Leen Sit, Gang Li
  • Patent number: 11899100
    Abstract: A method of determination of the alignment angles of two or more road vehicle (1) borne radar sensors (4) for a road vehicle radar auto-alignment controller (3) starting from initially available rough estimates of alignment angles. From at least two radar sensors (4) are obtained signals related to range, azimuth and range rate to detections. The detections are screened (5) to determine detections from stationary targets. From the determined detections from stationary targets is derived a linearized signal processing model involving alignment angles, longitudinal and lateral velocity and yaw-rate of the road vehicle (1). A filter algorithm is applied to estimate the alignment angles. Based on the estimated alignment angles are produced signals suitable for causing a road vehicle (1) radar auto-alignment controller (3) to perform radar offset compensation.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: February 13, 2024
    Assignee: Zenuity AB
    Inventors: Tony Gustafsson, Joakim Sörstedt
  • Patent number: 11899098
    Abstract: A system for testing a radar under test is provided. The system comprises an antenna array with a plurality of antenna elements, a plurality of transceivers downstream to the plurality of antenna elements and a processing unit. In this context, the processing unit is configured to communicate the radar under test by transmitting and/or receiving a two dimensional test pattern and to compare the two dimensional test pattern with a reference pattern.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: February 13, 2024
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Yassen Stefanov Mikhailov, Steffen Neidhardt
  • Patent number: 11879982
    Abstract: Methods for determining corrected positions of a global navigation satellite system (GNSS) rover using a GNSS base station and one or more GNSS reference stations include determining a statistical representation of position measurements from the GNSS reference stations and an instantaneous position measurement from the GNSS reference stations. A position correction is determined based on the statistical representation and the instantaneous position measurement. A corrected position of the GNSS rover is determined based on a position of the GNSS rover and the position correction.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: January 23, 2024
    Assignee: Trimble Inc.
    Inventors: Michael Cash, Stuart Riley, Vivek Nadkarni