Patents Examined by Helena H Seraydaryan
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Patent number: 11422248Abstract: The present invention relates to a signal processing device for accurately detecting a moving object without being influenced by the speed of the moving object. This signal processing device is provided with: at least two cross-correlation calculation units for calculating cross-correlation functions for the waveform of a reflection signal obtained through the reflection, by an object, of a transmission signal having a varying frequency and different correlation waveforms generated from the waveform of the transmission signal; a combination unit for combining the at least two cross-correlation functions from the at least two cross-correlation calculation units so as not to be separated in the frequency shift direction; and a detection unit for detecting the object on the basis of the cross-correlation function resulting from the combination.Type: GrantFiled: October 4, 2017Date of Patent: August 23, 2022Assignee: NEC CORPORATIONInventors: Osamu Hoshuyama, Kentarou Kudou, Shohei Ikeda
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Patent number: 11402495Abstract: The invention concerns a monitoring method that comprises coupling in an integral manner at least one electromagnetic mirror of passive type with a given target to be monitored and monitoring the given target; wherein monitoring the given target includes: acquiring, via one or more synthetic aperture radar(s) installed on board one or more satellites and/or one or more aerial platforms, SAR images of a given area of the earth's surface where the given target is located; and determining, via a processing unit, a movement of the electromagnetic mirror on the basis of the acquired SAR images.Type: GrantFiled: December 1, 2017Date of Patent: August 2, 2022Assignee: Thales Alenia Space Italia S.p.A. Con Unico SocioInventors: Luca Soli, Diego Calabrese
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Patent number: 11391833Abstract: A vehicle radar system (3) including a control unit arrangement (8) and at least one radar sensor arrangement (4) arranged to acquire a plurality of measured radar detections (zt, zt+1) at different times. The control unit arrangement (8) engages a tracking algorithm using the present measured radar detections (zt, zt+1) as input. For each track, for each one of a plurality of measured radar detections (zt, zt+1), the control unit arrangement (8) calculates a corresponding predicted detection (xt|t?1|, xt+1|t|) and a corrected predicted detection (xt|t|, xt+1|t+1|), and calculates an innovation vector (19, 19) constituted by a first vector type (18a, ??) and a second vector type (18b, ?r). The control unit arrangement (8) calculates a statistical distribution (24; ?inno,?, ?inno,r) for at least one of the vector types (18a, ??; 18b, ?r) and to determine how it is related to another statistical distribution (25; ?meas,?, ?meas,r); and/or to determine its symmetrical characteristics.Type: GrantFiled: June 15, 2018Date of Patent: July 19, 2022Assignee: VEONEER SWEDEN ABInventor: Sebastian Marsch
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Patent number: 11385329Abstract: A radar sensor includes: a transceiver unit for emitting a radar beam at at least two different wavelengths along a beam path in an outgoing direction and to receive radar radiation along the beam path in an incoming direction; and a reference object placed in the beam path for redirecting part of the outgoing radar beam in the incoming direction. The reference object includes two identical grids, each grid having regularly spaced elements arranged at a distance d from each other in a first direction perpendicular to the beam path, the grids being spaced from one another along the beam path by a distance L. The transceiver unit is operable at a wavelength ? which satisfies L = n ? 2 ? d ? 2 n being an integer.Type: GrantFiled: June 9, 2021Date of Patent: July 12, 2022Assignee: ABB Schweiz AGInventor: Mathias Fauth
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Patent number: 11376960Abstract: An illustrative example object detection system includes a sensor having a field of view. The sensor is configured to emit radiation and to detect at least some of the radiation reflected by an object within the field of view. A panel in the field of view allows the radiation to pass through the panel. The panel being is configured to be set in a fixed position relative to a vehicle coordinate system. A plurality of reflective alignment markers are situated on the panel in the field of view. The reflective alignment markers reflect radiation emitted by the sensor back toward the sensor. A processor is configured to determine an alignment of the sensor with the vehicle coordinate system based on an indication from the sensor regarding radiation reflected by the reflective alignment markers and detected by the sensor.Type: GrantFiled: September 25, 2018Date of Patent: July 5, 2022Assignee: Aptiv Technologies LimitedInventors: Chenghui Hao, Ronald M. Taylor, Roman J. Dietz
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Patent number: 11353596Abstract: A global positioning system (GPS) receiver and system for determining a geographical location associated with the GPS receiver using less than four GPS signals. The system can comprise a constraint module configured to receive one or more constraints that describe at least one characteristic of a GPS receiver when a number of GPS satellites within a line of sight to the GPS receiver is below a defined value. The system can further comprise a pseudo range calculation module configured to calculate a plurality of pseudo ranges between the GPS receiver and the number GPS satellites, wherein the plurality of pseudo ranges are to various orbital positions of the GPS satellites over a period of time; and a geographical location module configured to determine the geographical location of the GPS receiver using the plurality of pseudo ranges and known constraints of motion associated with the GPS receiver.Type: GrantFiled: May 16, 2019Date of Patent: June 7, 2022Assignee: Raytheon CompanyInventors: Ian S. Robinson, Andrew M. Hautzik, Brandon Crow
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Patent number: 11327183Abstract: An antenna system includes a right-hand circularly polarized antenna for receiving Global Navigation Satellite System (GNSS) signals and located on a receiver housing; a vertical semitransparent screen for providing an Down/Up ratio DU 9 ? 0 = DU ? ( ? e = 9 ? 0 ? ) = F ? ( - 9 ? 0 ? ) F ? ( 9 ? 0 ? ) of ?13 dB or better for at least some GNSS frequencies; the semitransparent screen being connected to a ground plane of the antenna; the ground plane being connected to a conductive receiver housing; the semitransparent screen further comprising a horizontal slot to which sets of lumped impedance elements are connected. Each set includes several lumped elements; where the lumped elements are capacitors and/or inductors and/or resistors; where the lumped elements in each set are connected in parallel or series; and the semitransparent screen including at least 4 segments arranged symmetrically around the center of the antenna and connected to each other.Type: GrantFiled: May 18, 2018Date of Patent: May 10, 2022Assignee: Topcon Positioning Systems, Inc.Inventors: Dmitry Vitalievich Tatarnikov, Alexey Anatolievich Generalov, Andrey Vitalievich Astakhov
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Patent number: 11313962Abstract: Disclosed herein is a sensor processing system including an acquisition unit, a time series analysis unit, and a decision unit. The acquisition unit acquires measurement data from a measuring unit. The measuring unit measures a physical quantity, of which a value varies depending on whether a human is present in, or absent from, an object space. The time series analysis unit obtains an analysis model for a time series analysis in which the measurement data acquired at a predetermined timing is represented by multiple items, acquired before the predetermined timing, of the measurement data. The decision unit decides, depending on a decision condition including a condition concerning a coefficient of the analysis model, whether the human is present or absent at the predetermined timing.Type: GrantFiled: February 28, 2019Date of Patent: April 26, 2022Assignee: PANASONIC INTELLECTUAL PROPERTV CORPORATION OF AMERICAInventors: Masaru Yamaoka, Toshiaki Tanaka, Kenji Masuda, Atsushi Takahashi, Hidehiko Ichikawa
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Patent number: 11280881Abstract: A radar system is disclosed for detecting profiles of objects, particularly in a vicinity of a machine work tool. The radar system uses a direct digital synthesiser to generate an intermediate frequency off-set frequency. It also uses an up-converter comprising a quadrature mixer, single-side mixer or complex mixer to add the off-set frequency to the transmitted frequency. It further uses a down-converter in the receive path driven by the off-set frequency as a local oscillator. The radar system enables received information to be transferred to the intermediate frequency. This in turn can be sampled synchronously in such a way as to provide a complex data stream carrying amplitude and phase information. The radar system is implementable with a single transmit channel and a single receive channel.Type: GrantFiled: October 18, 2018Date of Patent: March 22, 2022Assignee: RodRadar Ltd.Inventors: Simon Conway, John Roulston
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Patent number: 11255962Abstract: An automotive testing method includes acquiring radar sensor data responsive to a radar excitation signal generated by a radar transmitting unit, forwarding the acquired radar sensor data to an electronic system of a radar receiving unit, generating radar data from the forwarded radar sensor data, and processing the radar data, wherein the step of acquiring radar sensor data includes generating synthetic radar data, the synthetic radar data being forwarded as radar sensor data to the electronic system of the radar receiving unit, where the synthetic radar data includes reflection signals, preferably all reflection signals, in a complex time series, that succeed each other and have the same temporal behavior within a synthetic period that lasts at least an order longer than a time period of the radar excitation signal.Type: GrantFiled: June 26, 2017Date of Patent: February 22, 2022Assignee: SIEMENS INDUSTRY SOFTWARE AND SERVICES B.V.Inventors: Martinus Fransiscus Hendricus Wantenaar, Lucas Johannes Van Ewijk, Thijs Van Putten
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Patent number: 11255949Abstract: An integrated circuit (IC) is provided with a plurality of diode based mm-wave peak voltage detectors (PVD)s. During a testing phase, a multi-point low frequency calibration test is performed on one or more of the PVDs to determine and store a set of alternating current (AC) coefficients. During operation of the IC, a current-voltage sweep is performed on a selected one of the PVDs to determine a process and temperature direct current (DC) coefficient. A peak voltage produced by the PVD in response to a high frequency radio frequency (RF) signal is measured to produce a first measured voltage. An approximate power of the RF signal is calculated by adjusting the first measured voltage using the DC coefficient and the AC coefficient.Type: GrantFiled: June 11, 2020Date of Patent: February 22, 2022Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Vito Giannini, Brian Paul Ginsburg
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Patent number: 11215704Abstract: An ultra-wideband (“UWB”) communication system comprising a transmitter and a receiver having two antennas. An UWB signal transmitted by the transmitter is received at each of the antennas. By comparing the carrier phases of the received signals, the phase difference can be determined. From this phase difference and the known distance, d, between the antennas, the Cartesian (x,y) location of the transmitter relative to the receiver can be directly determined.Type: GrantFiled: March 13, 2019Date of Patent: January 4, 2022Assignee: DecaWave, Ltd.Inventors: Michael McLaughlin, Gavin Marrow, Igor Dotlic
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Patent number: 11175407Abstract: Geofence crossing-based control systems and techniques are described herein. For example, a geofence crossing control technique may include receiving a location signal indicative of a range of locations in which a mobile computing device is located; receiving a velocity signal indicative of a speed and direction of the mobile computing device; generating, for each of a plurality of candidate geofence crossing times, a performance indicator based on the location signal, the velocity signal, and a boundary of the geofence; selecting a geofence crossing time from the plurality of candidate geofence crossing times based on the performance indicators; and transmitting a control signal representative of the geofence crossing time. Other embodiments may be disclosed and/or claimed.Type: GrantFiled: August 29, 2019Date of Patent: November 16, 2021Assignee: Intel CorporationInventors: YuHuan Huang, Ke Han, Ke Ding
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Patent number: 11169245Abstract: A method for simulating a trajectory of a radar target includes the procedures of determining a simulated trajectory of the simulated target and determining a simulating vehicle trajectory for a simulating vehicle. The simulating vehicle trajectory is defined according to a simulation profile. The simulation profile at least includes a spatial simulation profile and a signal delay profile. The method further includes the procedures of maneuvering the simulating vehicle according the spatial simulation profile, receiving a radar signal by the simulating vehicle and retransmitting a signal toward the radar at least according to the signal delay profile.Type: GrantFiled: May 29, 2018Date of Patent: November 9, 2021Assignee: ELBIT SYSTEMS EW AND SIGINT-ELISRA LTDInventors: Roy Glass, Reuel Manela
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Patent number: 11163050Abstract: Techniques for estimating one or more backscatter signals reflected from one or more objects are disclosed. In one example, a backscatter sensor includes, in part, a receiver for receiving a composite signal comprising one or more reflections of a transmitted signal, each reflection being reflected by one of a plurality of objects; and a processor configured to estimate at least a first backscatter component of the composite signal using a progressive interference cancellation technique. The first backscatter component of the composite signal corresponds to a reflection of the transmitted signal from a first object. In one embodiment, the backscatter sensor includes multiple receivers and/or one or more transmitters.Type: GrantFiled: November 14, 2014Date of Patent: November 2, 2021Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Dinesh Bharadia, Kiran Joshi, Sachin Katti
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Patent number: 11163052Abstract: In an example, the present invention provides an FMCW sensor apparatus. The apparatus has at least three transceiver modules. Each of the transceiver modules has an antenna array to be configured to sense a back scatter of electromagnetic energy from spatial location of a zero degree location in relation to a mid point of the device through a 360 degrees range where each antenna array is configured to sense a 120 degree range. In an example, each of the antenna array has a support member, a plurality of receiving antenna, a receiver integrated circuit coupled to the receiving antenna and configured to receive an incoming FMCW signal and covert the incoming FMCW signal into a base band signal, and a plurality of transmitting antenna. Each antenna array has a transmitter integrated circuit coupled to the transmitting antenna to transmit an outgoing FMCW signal.Type: GrantFiled: November 16, 2018Date of Patent: November 2, 2021Assignee: Koko Home, Inc.Inventors: Bradley Michael Eckert, Luca Rigazio, Neal Khosla, Kiran Joshi, Lenin Patra
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Patent number: 11142340Abstract: An apparatus interfaces with a light stanchion associated with a runway. The apparatus can include a first interface for attaching to the light stanchion, second interface for attaching to runway light, and a radar reflective member. The radar reflective member can be a corner reflector. The radar reflector can be part of set of reflectors arranged in accordance with visual approach slope indications or precision approach path indications.Type: GrantFiled: May 18, 2015Date of Patent: October 12, 2021Assignee: Rockwell Collins, Inc.Inventors: Carlo L. Tiana, Robert B. Wood, David L. Flanders, Lu Bai
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Patent number: 11137476Abstract: A frequency modulated continuous wave (FMCW) radar system is provided that includes a receiver configured to generate a digital intermediate frequency (IF) signal, and an interference monitoring component coupled to the receiver to receive the digital IF signal, in which the interference monitoring component is configured to monitor at least one sub-band in the digital IF signal for interference, in which the at least one sub-band does not include a radar signal.Type: GrantFiled: August 31, 2018Date of Patent: October 5, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Brian Paul Ginsburg, Karthik Subburaj, Karthik Ramasubramanian, Sachin Bhardwaj, Sriram Murali, Sandeep Rao
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Patent number: 11119178Abstract: According to examples of the presently disclosed subject matter, there is provided a system for estimating a source location of a projectile, comprising an optics an optics subsystem, a radar subsystem and a processor. The processor is adapted to use range and velocity measurements obtained from data provided by the radar subsystem, a source direction and an event start time obtained from data provided by the optical subsystem and a predefined kinematic model for the projectile for estimating a range to a source location of the projectile.Type: GrantFiled: May 24, 2018Date of Patent: September 14, 2021Assignee: ELTA SYSTEMS LTD.Inventor: Gil Tidhar
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Patent number: 11086004Abstract: Radar frequency range signals (e.g., 1 to 100 gigahertz) are often generated by upconverting a reference frequency to a transmission frequency, and a received signal may be downconverted to analyze information encoded on the transmission via modulation. Modulation may be achieved via a fractional frequency divider in a phase-locked loop, but fractional spurs may reduce the signal-to-noise ratio. Additionally, the ramp slope may vary due to phase-locked loop momentum. Instead, a clock generator may generate clock signals for a digital front end comprising a digital signal modulator that generates modulated digital values comprising quadrature representations of a radar modulation signal, which are encoded by a radiofrequency digital-to-analog converter (RF-DAC). The RF-DAC analog signal may be upconverted to a radar frequency and transmitted. A receiver may receive, downconvert, and analyze a reflection of the radar transmission, e.g.Type: GrantFiled: October 23, 2018Date of Patent: August 10, 2021Assignee: INFINEON TECHNOLOGIES AGInventors: Niels Christoffers, Sanaz Hadipour Abkenar, Soumya Krishnapuram Sireesh, Christoph Wagner