Patents Examined by Juliana Cross
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Patent number: 12130356Abstract: In a method for mitigating the blurring effect in a radar image (40) obtained by a ground-based radar system, thereof, a Pulse Repetition Frequency (PRF) value is selected (110) in a radar sensor unit (30) such that radial velocity measurements of the targets of an observed scenario can be made up to a maximum unambiguous velocity vmax, a radial velocity threshold is also selected (101) to discriminate between substantially stationary targets and possible fast-moving targets having radial velocities vR, j?v* and vR, f>v*, respectively.Type: GrantFiled: July 16, 2021Date of Patent: October 29, 2024Assignee: IDS GEORADAR S.R.L.Inventor: Alberto Michelini
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Patent number: 12105191Abstract: A radar-enabled device that manages radar interference. In particular, the radar-enabled device detects a radar signal transmitted by a second radar-enabled device, transmits a notification of the detected radar signal, receives localization information associated with the second radar-enabled device, and sets a device location based on the received localization information. Additionally, the radar-enabled device may adjust a timing of radar signal transmissions to avoid subsequent detections of radar signals transmitted by the second radar-enabled device.Type: GrantFiled: October 13, 2021Date of Patent: October 1, 2024Assignee: Google LLCInventors: Andrew Larsen Axley, Eric Michael Monsler, Marci Meingast
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Patent number: 12105189Abstract: In an aspect, a radar controller determines a first transmission configuration for a reference radar signal on a first link from a first base station to a second base station, and a second transmission configuration for at least one target radar signal on at least one second link from the first base station to the second base station, the at least one target radar signal for sensing of at least one target, the first transmission configuration being different than the second transmission configuration. The radar controller transmits the first and second transmission configurations to the first and second base stations. The first base station transmits the reference radar signal and the at least one target radar signal in accordance with the respective transmission configurations.Type: GrantFiled: October 6, 2021Date of Patent: October 1, 2024Assignee: QUALCOMM INCORPORATEDInventors: Alexandros Manolakos, Weimin Duan, Seyong Park, Renqiu Wang, Hwan Joon Kwon, Krishna Kiran Mukkavilli
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Patent number: 12105193Abstract: Antenna allocation is configured by way of a methodically random TDMA pattern that can allow the decrease in the pulse repetition rate without the reduction in the maximum resolved cross-range associated with conventional uniform TDMA. Embodiments disclosed herein offer opportunity for development of high-resolution mmWave radar systems for walk-through search and reduces the interference from surrounding objects. Other applications include synthetic-aperture radar (SAR), and other radar Range-Velocity-DOA imaging systems in automotive applications and robotics.Type: GrantFiled: November 15, 2021Date of Patent: October 1, 2024Assignee: Kabushiki Kaisha ToshibaInventor: Mustafa Al-Ani
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Patent number: 12092731Abstract: A method for synthetically generating a point cloud of radar or LIDAR reflections, a reflection indicating at least one location at which radar or LIDAR interrogating radiation has been reflected. In the method, distribution functions which according to a random distribution provide samples in each case for at least one of the variables contained in the radar or LIDAR reflections are provided; synthetic reflections are generated by drawing samples in each case from the distribution functions for variables contained in the radar or LIDAR reflections, one of multiple distribution functions being selected according to at least one selection random distribution in order to draw each sample; the synthetic reflections are combined to form the sought point cloud.Type: GrantFiled: February 3, 2022Date of Patent: September 17, 2024Assignee: ROBERT BOSCH GMBHInventors: Andrej Junginger, Melissa Lober, Michael Johannes Oechsle, Thilo Strauss
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Patent number: 12066520Abstract: Aspects of the present disclosure are directed to radar communications with disparate pulse repetition intervals, as may be implemented with radar transmission, receiver and processing circuitry. As may be utilized in accordance with one or more embodiments herein, time division multiplexing (TDM) multi-input multi-output (MIMO) radar signals are transmitted by transmitting sets of successive radar signals, each set having a pulse repetition interval (PRI) that is different than the PRI of sets of radar signals transmitted in another one of the sets. Positional characteristics of a target may be ascertained based on the PRI used in each of the sets and on phase characteristics of ones of the radar signals reflected from the target.Type: GrantFiled: April 19, 2021Date of Patent: August 20, 2024Assignee: NXP B.V.Inventors: Ryan Haoyun Wu, Dongyin Ren, Wendi Zhang, René Geraets
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Patent number: 12038497Abstract: Embodiments provide a landing and approach navigation system. The navigation system can use a radar system onboard an aircraft to transmit radio energy. A rotating reflector at a landing area can reflect the radio energy back to the radar system with an amplitude-modulation that is due to the rotation. With synchronized timing between the reflector and the radar system, and known rotation characteristics of the reflector, the radar system can use the reflected radio energy to calculate the bearing of the aircraft relative to the reflector and landing area.Type: GrantFiled: November 19, 2021Date of Patent: July 16, 2024Assignee: Wisk Aero LLCInventors: Adam Berger, Andy Smith, Sumant Sharma, Geoffrey Alan Long
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Patent number: 12025690Abstract: Methods, devices and instruction-carrying storage operate to track a target object over time and space. The tracking techniques involve obtaining a point cloud of reflection points at time n, a target from time n?1, state information including previous location information for the target and previous group distribution for previous reflection points associated with the target at time n?1; predicting a location of the target at time n based on the state information; determining a gate around the target and which of the multiple reflection points are within the gate; determining, for each of the multiple reflection points determined to be within the gate, a likelihood that the corresponding reflection point is associated with the target; determining current group distribution for the reflection points determined to likely be associated with the target; and outputting the determined current group distribution and current location information of the target.Type: GrantFiled: March 28, 2023Date of Patent: July 2, 2024Assignee: Texas Instruments IncorporatedInventors: Michael Livshitz, Mingjian Yan
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Patent number: 12025694Abstract: A method for calculating a sensitivity of a displacement of Synthetic Aperture Radar (SAR) along line-of-sight direction to a slope gradient and a slope aspect is provided, comprising: obtaining SAR data and Digital Elevation Model (DEM) data covering slope bodies, and extracting a local incident angle of an image by utilizing a satellite side-looking imaging principle; carrying out geometric distortion on the slope bodies under ascending and descending orbits by utilizing the local incident angle, to obtain specific locations of geometric distortion areas under ascending and descending orbit; calculating sensitivities of detections to changes of the slope gradient and the slope aspect under ascending and descending orbits according to the extracted parameter information of the SAR satellite in ascending and descending orbits and satellite heights, and dividing a sensitivity distribution by combining the sensitivity and the specific locations of the geometric distortion.Type: GrantFiled: June 14, 2022Date of Patent: July 2, 2024Assignee: CHENGDU UNIVERSITY OF TECHNOLOGYInventors: Xianlin Shi, Keren Dai, Jin Deng
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Patent number: 11994608Abstract: The invention relates to a radar method for exchanging signals between at least two non-coherent transceiver units which respectively have initially non-synchronous, in particular controllable, clock sources, having the following steps: a synchronization in which clock offsets and/or clock rates of the clock sources of the at least two transceiver units are adapted; a full-duplex measuring process in which a first transmission signal of the first transceiver unit is transmitted to the second transceiver unit and a second transmission signal of the second transceiver unit is transmitted to the first transceiver unit via a radio channel; with synchronization prior to the full-duplex measuring process being carried out in such a way that a time offset and/or a frequency offset between the transmission signals at least substantially remain(s) constant during a transmission time of the full-duplex measuring process.Type: GrantFiled: May 25, 2021Date of Patent: May 28, 2024Assignee: Symeo GmbHInventors: Michael Gottinger, Igor Bilous, Peter Georg Gulden, Martin Vossiek
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Patent number: 11953585Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, to a second UE via reflection by one or more passive devices, a first reference signal (RS) that is based at least in part on a shared first key that corresponds to a configuration of the one or more passive devices. The first UE may receive, from the second UE via reflection, a second RS that is based at least in part on the first key. The first UE may generate a second key based at least in part on a measurement of the second RS. The first UE may transmit a positioning reference signal that is based at least in part on the second key and that is associated with a measurement of a range between the first UE and the second UE. Numerous other aspects are described.Type: GrantFiled: October 27, 2021Date of Patent: April 9, 2024Assignee: QUALCOMM IncorporatedInventors: Anantharaman Balasubramanian, Shuanshuan Wu, Kapil Gulati, Junyi Li, Sourjya Dutta, Preeti Kumari, Hong Cheng, Gene Wesley Marsh, Shailesh Patil
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Patent number: 11948408Abstract: An apparatus and method for evaluating vehicle sensor performance are provided in which performances of various vehicle sensors are evaluated based on the same evaluation criteria. The apparatus estimates field of views (FoVs) of sensors based on acquired object information and divides each of the estimated FoVs into a plurality of grid cells. The object information corresponding to the respective grid cells is collected and mean errors and error variances of the object information are calculated. Performances of the sensors are then evaluated based on the calculated mean errors and error variances.Type: GrantFiled: March 27, 2020Date of Patent: April 2, 2024Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Wooyoung Lee
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Patent number: 11940554Abstract: An automotive radar arrangement includes a radar receiver configured to generate radar reception data from radio signals received by a plurality of radar receive antennas. A radar signal processor is configured to determine an estimate of an angular position of at least one object by processing the radar reception data. A communication interface is configured to receive information about a reference angular position of the at least one object. A determiner is configured to determine a compensation for the radar reception data based on the estimate of the angular position and the reference angular position of the at least one object. The radar signal processor is configured to correct the radar reception data and/or further radar reception data for the detection of a further object based on the compensation. An output interface is configured to provide information about the presence of the further object to a vehicle controller.Type: GrantFiled: June 14, 2021Date of Patent: March 26, 2024Assignee: Infineon Technologies AGInventors: Andre Roger, Simon Achatz, Dian Tresna Nugraha
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Patent number: 11933882Abstract: A method and a system for detection and synthetic aperture (SA) imaging of a target are disclosed. The method may include illuminating a scene with a search signal transmitted from a moving platform, receiving a search return signal from a target present in the scene, and estimating, from the search return signal, the range and the angular location of the target. The method may also include generating an SA transmission signal and a local oscillator (LO) signal with a time delay therebetween based on the estimated range, and illuminating the scene with the SA transmission signal pointed along an imaging direction based on the estimated angular location of the target. The method may further include receiving an SA return signal from the target, mixing the SA return signal with the LO signal to generate SA signal data, and generating an SA image of the target from the SA signal data.Type: GrantFiled: August 13, 2020Date of Patent: March 19, 2024Assignee: INSTITUT NATIONAL D'OPTIQUEInventors: Simon Turbide, Linda Marchese
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Patent number: 11933887Abstract: According to the disclosure, a radar control device comprises a plurality of radars mounted to a vehicle, each of the plurality of radars having a different detection area outside the vehicle, and a controller generating object information for an object based on a radar signal reflected by the object within the detection area. When the object moves from the detection area of at least one of the plurality of radars to a shadow area between different detection areas, the controller generates prediction information for the object in the shadow area based on object information last detected in the detection area.Type: GrantFiled: February 26, 2021Date of Patent: March 19, 2024Assignee: HL KLEMOVE CORP.Inventor: Kyung Tae Jo
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Patent number: 11927666Abstract: A secondary echo and a primary echo subjected to topographic echo processing are compared with each other. When there is a topographic echo in the primary echo or the secondary echo determined as a strong echo, an echo resulting from removal of the topographic echo is defined as a strong-topographic-echo-removed reception signal. Electric power of the topographic echo in the secondary echo or the primary echo determined as a weak echo and the strong-topographic-echo-removed reception signal are defined as weak echo parameters. Electric power of the weak echo estimated from a reception signal in a weak echo region resulting from phase correction of a reception signal resulting from removal of a frequency component of the strong echo from the strong-topographic-echo-removed reception signal representing the weak echo parameter, a spectral width of the weak echo representing the weak echo parameter, and a Doppler velocity of the weak echo are provided as spectral parameters.Type: GrantFiled: June 14, 2019Date of Patent: March 12, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroshi Sakamaki, Ikuya Kakimoto, Tomoya Matsuda, Takamichi Nakamizo
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Patent number: 11914019Abstract: The invention relates to a method for determining the detection threshold of a radar suited to a given environment, characterized in that it comprises at least: a step in which a set of statistical quantities characterizing said environment is selected; a step in which a set of functions is defined, each of said functions giving an intermediate detection threshold that is a function of statistical quantities taken from a subset of said set of statistical quantities; a step of combination of said intermediate detection thresholds, said detection threshold being the result of said combination.Type: GrantFiled: November 30, 2020Date of Patent: February 27, 2024Assignee: THALESInventors: Stéphane Kemkemian, Vincent Corretja, Sabrina Machhour
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Patent number: 11906654Abstract: Signal processing circuitry includes at least one processor configured to obtain a digitized radar signal, and further configured, for one or more iterations, to: determine a first power of at least one first signal sample of the radar signal; determine a second power of at least one second signal sample of the radar signal, the at least one second signal sample being subsequent in time to the at least one first signal sample; and determine a difference value between the second power and the first power. The at least one processor further configured to detecting a burst interference signal occurring within the radar signal based on the one or more difference values from the one or more iterations.Type: GrantFiled: July 13, 2021Date of Patent: February 20, 2024Assignee: Infineon Technologies AGInventors: Dian Tresna Nugraha, Markus Bichl, Dyson Wilkes
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Patent number: 11906619Abstract: Techniques and apparatuses are described that implement a smart-device-based radar system capable of detecting user gestures in the presence of saturation. In particular, a radar system employs machine learning to compensate for distortions resulting from saturation. This enables gesture recognition to be performed while the radar system's receiver is saturated. As such, the radar system can forgo integrating an automatic gain control circuit to prevent the receiver from becoming saturated. Furthermore, the radar system can operate with higher gains to increasing sensitivity without adding additional antennas. By using machine learning, the radar system's dynamic range increases, which enables the radar system to detect a variety of different types of gestures having small or large radar cross sections, and performed at various distances from the radar system.Type: GrantFiled: February 28, 2023Date of Patent: February 20, 2024Assignee: Google LLCInventors: Changzhan Gu, Jaime Lien, Nicholas Edward Gillian, Jian Wang
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Patent number: 11907622Abstract: The invention relates to a versatile generation of radar signals for simulating a radar scenario. Radar signals may be generated by multiple RF output paths having different frequency ranges. Pulse descriptive words of radar signal simulation data are split into multiple groups according to the frequency or frequency range of the RF output paths and the split data are provided to the related RF output path.Type: GrantFiled: June 26, 2020Date of Patent: February 20, 2024Assignee: ROHDE & SCHWARZ GMBH & CO. KGInventor: Tim Benneckenstein