Patents Examined by Bernarr E. Gregory
  • Patent number: 11656350
    Abstract: Power saving techniques for radar-based proximity sensing can include conducting proximity scans with a radar system in an omnidirectional proximity sensing mode in which signals are transmitted without directionality. Once an object is detected within a threshold proximity, the radar system can then switch to a directional proximity sensing mode to provide accurate directional detection capabilities in a desired field of view (FOV).
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: May 23, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Ariel Sagi, Evyatar Hemo, Evgeny Levitan, Gal Basson, Sharad Sambhwani
  • Patent number: 11656315
    Abstract: A system and method can determine the position of a tag antenna relative to a plurality of spaced apart fixed base antennae using ultrawideband signals by using an angle of arrival determined by time of arrival of an ultrawideband signal from the tag antenna to disambiguate a differential phase angle of arrival measured from the differential phase of the ultrawideband signal between the two base antennae. Accordingly, a non-ambiguous phase angle of arrival of the ultrawideband signal from the tag antenna may be used with a range of the tag antenna measured by one or more methods including by 2-way time of flight, to determine the position of the tag antenna relative to the base antennae. The system and method can also use a plurality of pairs of antennae to determine a 3D position of the tag antenna.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: May 23, 2023
    Assignee: XCO Tech Inc
    Inventors: Scott Stephens, Scott Mcmillan, Maik Wolleben
  • Patent number: 11650304
    Abstract: A millimeter or mm-wave system includes transmission of a millimeter wave (mm-wave) radar signal by a transmitter to an object. The transmitted mm-wave radar signal may include at least two signal orientations, and in response to each signal orientation, the object reflects corresponding signal reflections. The signal reflections are detected and a determination is made as to location of the object.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: May 16, 2023
    Assignee: Texas Instruments Incorporated
    Inventors: Dan Wang, Meysam Moallem, Brian Ginsburg
  • Patent number: 11644556
    Abstract: A position measurement device which includes: a storage unit that stores area information for setting a first region along a boundary of the specific area; an area setting unit that acquires the area information from the storage unit and sets the first region on the basis of the acquired area information; and a position measurement unit that acquires the first region from the area setting unit, sets the acquired first region as a verification region, measures the position of the object located in the verification region, and updates the area information stored in the storage unit.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: May 9, 2023
    Assignee: NEC CORPORATION
    Inventors: Kazumine Ogura, Shingo Yamanouchi, Masayuki Ariyoshi
  • Patent number: 11642033
    Abstract: A vital-sign radar sensor uses wireless internet signals to detect vital signs. It includes a first and second demodulation unit to demodulate an incident and reflected wireless internet signal with an injection-locked oscillator into a first and second demodulated signal, respectively. The combined use of the first and second demodulated signals can eliminate the influence of communication modulation on the extraction process of a Doppler shift due to vital signs. Moreover, the vital-sign radar sensor is a receive-only device so that it won't cause interference to ambient wireless communication networks.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: May 9, 2023
    Assignee: NATIONAL SUN YAT-SEN UNIVERSITY
    Inventors: Tzyy-Sheng Horng, Yi-Chen Lai, Jui-Yen Lin
  • Patent number: 11644537
    Abstract: A LIDAR system is provided. In one example, the LIDAR system can include an emitter configured to emit a light signal through one or more transmit lenses positioned along a transmit path to provide transmit signals to a surrounding environment. The LIDAR system can include a receiver spaced apart from the emitter. The receiver configured to detect return signals corresponding to reflected transmit signals from the surrounding environment. The return signals can be received via one or more receive lenses positioned along a receive path. The LIDAR system can include an actuator coupled to the one or more transmit lenses. The actuator can be operable to impart a motion to the one or more transmit lenses to provide for steering of the transmit signals in the surrounding environment.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: May 9, 2023
    Assignee: UATC, LLC
    Inventors: Martin Millischer, Gaetan Pennecot
  • Patent number: 11644564
    Abstract: A method for signal evaluation in a locating system that includes multiple radar sensors whose locating ranges overlap one another. The method includes evaluating the signal of a first of the radar sensors and identifying distance cells that are not empty, for at least one of these distance cells: selecting a second of the radar sensors and determining a distance range in which the objects situated in the distance cell would have to be situated from the viewpoint of the second radar sensor, and classifying the object configuration in the distance range, based on the signal of the second radar sensor.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: May 9, 2023
    Assignee: ROBERT BOSCH GMBH
    Inventors: Antoine Chabaud, Benedikt Loesch, Hermann Buddendick, Michael Schoor, Stefan Chittka
  • Patent number: 11641303
    Abstract: An orthogonal frequency-division multiplexing (OFDM) based radar signal comprising Q sub-carriers adapted to push an IQ-imbalance component out of a subset of L contiguous range bins of range profiles derived out of the received radar signal and wherein L is at most Q/2, is disclosed.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: May 2, 2023
    Assignee: IMEC vzw
    Inventors: Andre Bourdoux, Marc Bauduin, Claude Desset
  • Patent number: 11639992
    Abstract: For example, an apparatus may include a radar processor to process radar receive (Rx) data, the radar Rx data based on radar signals received via a plurality of Rx antennas of a Multiple-Input-Multiple-Output (MIMO) radar antenna; and to generate radar information by applying an Amplitude Phase Estimation (APES) calculation to the radar Rx data.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: May 2, 2023
    Assignee: INTEL CORPORATION
    Inventors: Lior Maor, Moshe Teplitsky, Alon Cohen, Ilia Yoffe
  • Patent number: 11635394
    Abstract: A permittivity sensor, for determining an image of a distribution of permittivity of a material of an object in a scene, comprising an input interface, a hardware processor, and an output interface is provided. The input interface is configured to accept phaseless measurements of propagation of a known incident field through the scene and scattered by the material of the object in the scene. The hardware processor is configured to solve a multi-variable minimization problem over unknown phases of the phaseless measurements and unknown image of the permittivity of the material of the object by minimizing a difference of a nonlinear function of the known incident field and the unknown image with a product of known magnitudes of the phaseless measurements and the unknown phases. Further, the output interface is configured to render the permittivity of the material of the object provided by the solution of the multi-variable minimization problem.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: April 25, 2023
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Yanting Ma, Muhammad Asad Lodhi, Hassan Mansour, Petros Boufounos, Dehong Liu
  • Patent number: 11635525
    Abstract: A method is for detecting loss-of-lock of a GNSS (Global Navigation Satellite System) signal tracking loop based on frequency compensation, comprising the following steps of: performing multi-channel frequency compensation on I-channel and Q-channel signals after down-conversion, pseudo-code stripping and integration clearing; then, performing coherent integration and non-coherent integration for a fixed time, and taking a maximum value of non-coherent integration results as a signal value; performing parabolic interpolation frequency identification, and taking an average value of the non-coherent integration results with the frequency differences of +/?50 Hz and +/?100 Hz as a noise value; and finally, calculating a ratio of the signal value to the noise value, and performing loss-of-lock detection with the ratio as a detection volume.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: April 25, 2023
    Assignee: NANJING LOW POWER IC TECHNOLOGY INSTITUTE CO., LTD.
    Inventor: Qiang Wang
  • Patent number: 11635512
    Abstract: An electronic device includes a controller that performs control to enable switching between a first band mode such that a transmission wave is in a first band and a second band mode such that the transmission wave is in a second band broader than the first band. The controller performs control to switch to the second band mode when an object is detected within a predetermined distance in the first band mode.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: April 25, 2023
    Assignee: KYOCERA Corporation
    Inventors: Tooru Sahara, Masamitsu Nishikido, Yutaka Ootsuki
  • Patent number: 11630196
    Abstract: False alarms in RADAR processing are reduced. One or more transforms may be performed to generate an array of spectrum values for a first domain spanning at least one of a range axis, a direction of arrival (DoA) axis, or a velocity axis. One or more spectrum values may be obtained from the array of spectrum values, wherein for each of the one or more spectrum values, (1) the spectrum value is associated with a range estimate, and (2) the spectrum value exceeds a range-dependent maximum threshold established based on a quartic function of the range estimate. The one or more spectrum values identified as exceeding the range-dependent maximum threshold may be excluded, or one or more reduced-magnitude values obtained, to generate an array of modified spectrum values for the first domain, used to generate a range estimate, a DoA estimate, or a velocity estimate, or any combination thereof.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: April 18, 2023
    Assignee: QUALCOMM INCORPORATED
    Inventors: Junyi Li, Dan Zhang, Kapil Gulati
  • Patent number: 11630203
    Abstract: A ground-based radar system for weather sensing and aircraft tracking includes a ground-based radar that is configured to scan a volume of space associated with a particular aircraft for detecting a weather event in the volume of space, and an electronic control system that is configured to control the ground-based radar. The control system is adapted to track the particular aircraft via tracking data associated with the particular aircraft, and is adapted to detect the weather event via weather data associated with signals from the ground-based radar. The control system is configured to control the ground-based radar to adjust the scan of the volume of space in response to at least the tracking data associated with the particular aircraft being tracked. A geographically diverse radar network that includes multiple ground-based radar systems that communicate with each other also is provided.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: April 18, 2023
    Assignee: Raytheon Company
    Inventors: Michael D. Dubois, Eric J. Knapp
  • Patent number: 11624805
    Abstract: A failure detection apparatus (10) acquires, as target data, sensor data output in a past reference period by a sensor (31), such as a millimeter wave radar or LiDAR (Light Detection And Ranging), mounted on a moving body (100). The failure detection apparatus (10) determines whether detected data indicating a characteristic of a detected object indicated by normal data, which is sensor data output when the sensor (31) is normal, is included in the acquired detected data in the past reference period. In this way, the failure detection apparatus (10) determines whether a failure has occurred in the sensor (31).
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: April 11, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naoyuki Tsushima, Masahiko Tanimoto, Masahiro Abukawa
  • Patent number: 11623558
    Abstract: A left front camera (11) is adapted to be mounted on a left front lamp (1LF) of a vehicle to obtain external information of at least ahead of the vehicle. A right front LiDAR sensor (12), a type of which is different from the camera (11), is adapted to be mounted on a right front lamp (1RF) of the vehicle to obtain external information of at least ahead of the vehicle.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: April 11, 2023
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Yoshiaki Fushimi, Takashi Hori, Teruaki Yamamoto, Yusuke Kasaba
  • Patent number: 11624819
    Abstract: A signal processing device, includes: an azimuth estimation unit configured to estimate an arrival azimuth of a radio wave based on a reception signal of plural antennas; an estimated reception signal calculation unit configured to calculate an estimated reception signal based on an estimation result of the arrival azimuth, for comparison with the reception signal; a residual signal calculation unit configured to calculate a residual signal which is a difference between the reception signal and the estimated reception signal; and a determination unit configured to determine whether the estimation result of the arrival azimuth is correct based on the residual signal.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: April 11, 2023
    Assignee: DENSO TEN Limited
    Inventor: Hiroki Ishikawa
  • Patent number: 11624820
    Abstract: An RF PNT system may include LORAN stations. Each LORAN station may include a LORAN antenna, and a LORAN transmitter coupled to the LORAN antenna and configured to transmit a series of LORAN PNT RF pulses having a time spacing between adjacent LORAN PNT RF pulses. One or more of the LORAN stations may include a message embedding generator coupled to the LORAN transmitter and configured to generate message RF bursts based upon an input message, and with each message RF burst being in the time spacing between respective adjacent LORAN PNT RF pulses.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: April 11, 2023
    Assignee: EAGLE TECHNOLOGY, LLC
    Inventors: Francis E. Parsche, Emil G. Svatik, William C. Adams, Jr.
  • Patent number: 11624612
    Abstract: A method for determining angular orientation of an object in two or more directions. The method includes: generating a scanning polarized RF source signal; receiving the scanning polarized RF source signal at one or more cavities of a sensor disposed on the object; measuring the scanning polarized RF source signal at a first portion of the sensor; reflecting the scanning polarized RF source signal toward a second portion of the sensor; measuring the scanning polarized RF source signal at the second portion of the sensor; and determining the angular orientation of the object in the two or more directions based on the measured signal at the first and second portions of the sensor.
    Type: Grant
    Filed: March 14, 2021
    Date of Patent: April 11, 2023
    Assignee: OMNITEK PARTNERS LLC
    Inventor: Jahangir S Rastegar
  • Patent number: 11624842
    Abstract: An apparatus that performs spoof detection of satellite signals based on clock information derived from the satellite signals. The apparatus may include a position, velocity, time (PVT) component that derives the clock information from the satellite signals and provides the clock information to a spoof detection mechanism. In some embodiments, the clock frequency estimate is modeled as a Wiener process.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: April 11, 2023
    Assignee: THE MITRE CORPORATION
    Inventors: Steven Edward Langel, John David Quartararo, Joseph Samuel Cisneros, Kevin Francis Greco