Patents Examined by Timothy X Pham
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Patent number: 11662429Abstract: There are provided methods and systems configured to perform calibration of antenna array systems, for example during production, avoiding the use of external setups or external measurements. The method comprising: (i) measuring the delay of a dedicated calibration transmission line for each SUT, for example during production, using internal built-in system capabilities; (ii) comparing the measured delay to a known delay of an identical transmission line of a reference system; (iii) computing, based on this comparison, compensation values with respect to the reference system of delay (or phase), for all transmission lines of the SUT; (iv) calibrating the SUT using the computed compensation values for all transmission lines of the SUT.Type: GrantFiled: October 19, 2020Date of Patent: May 30, 2023Assignee: VAYYAR IMAGING LTDInventors: Damian Hoffman, Mark Popov
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Patent number: 11656334Abstract: A system includes an ultra-wideband (UWB) array having a transmitter that transmits electromagnetic waves as UWB pulses toward a region-of-interest (ROI), and having a receiver that receives reflected electromagnetic waves from objects in the ROI and generates object data, and a pattern recognition device having a processor configured to provide operations. The processor is configured to provide instructions that obtain scanning data from reflected electromagnetic waves from the ROI until an event is triggered, when the event is triggered, access a heuristic created from calibration data that was previously obtained using the ROI and using the UWB array, analyze the scanning data with the heuristic utilizing a pattern recognition function derived from the calibration data, to determine whether an object-of-interest (OOI) pattern is recognized within the scanning data, and if an OOI pattern is recognized, generate an alert.Type: GrantFiled: March 21, 2019Date of Patent: May 23, 2023Assignee: Xonar Technology Inc.Inventor: Jeffrey McFadden
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Patent number: 11656325Abstract: Methods and apparatus, including computer program products, are provided for synchronization. In some example embodiments, there may be provided a method. The method may receiving, at a processor, cross module information, the cross module information including target profile information obtained from radar returns received at first radar module and transmitted by a second radar module; and determining, at the processor, a frequency correction, a time correction, and/or a phase correction, the determining based at least on the received cross module information. Related systems, methods, and articles of manufacture are also described.Type: GrantFiled: December 19, 2018Date of Patent: May 23, 2023Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Mohammad Amin Arbabian, Babak Mamandipoor
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Patent number: 11650311Abstract: An instrument landing system (ILS) is described. The ILS comprises a plurality of antennas and a plurality of antenna radio units (ARUs). Each ARU of the plurality of ARUs operates to generate a modulated RF signal provided to a different one of the plurality of antennas for transmission. The ILS further comprises a central processing unit that operates to control the ARUs to adjust synchronization between the modulated RF signal provided by the ARUs to the plurality of antennas for transmission.Type: GrantFiled: November 13, 2020Date of Patent: May 16, 2023Assignee: Thales USA, Inc.Inventors: Massimiliano Ferla, David Carsenat, Andrea Cucurachi, Nathan Deloffre, Paolo Lunardi, André Schüttpelz, Stephen Rowson, Francesco Torriano, Michael Theobald, Kevin McGahee
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Patent number: 11650312Abstract: 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), in particular of a vehicle (10), a radar system (12) and a driver assistance system (20) are described. In the method, transmission signals (32a, 32b) are transmitted into a monitoring range (14) of the radar system (12) with at least one transmitter (26a, 26b). Echoes, which are reflected at the at least one target object (18), of the transmission signals (32a, 32b) are received as received signals (34a, 34b) with at least one receiver (30), and if necessary are converted into a form which can be used by an electronic control and/or evaluation device (28). The received signals (34a, 34b) are subjected to at least one multi-dimensional discrete Fourier transformation. At least one target signal is determined from the result of the at least one Fourier transformation. At least one object information item is determined from the at least one target signal.Type: GrantFiled: December 3, 2018Date of Patent: May 16, 2023Assignee: Valeo Schalter und Sensoren GmbHInventors: Christian Sturm, Hamid Afrasiabi Vayghan, Yoke Leen Sit, Urs Lübbert
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Patent number: 11652918Abstract: A system and method for providing assistance to a customer of a computing device. In one aspect, an incoming call is received from a device of a customer; a check for identification of the customer is done; an event history of the device is obtained; and a solution is provided to the customer using the event history. In another aspect, a method includes: receiving a code from a mobile computing device; and in response to receiving the code, calculating at least one set of data for use in guiding a request of a customer for service to a resource that can provide a suggested remedy. In another aspect, a method includes: identifying a user associated with a mobile computing device; determining an event history of the mobile computing device; and providing guidance to resolve an issue based on the event history.Type: GrantFiled: December 3, 2020Date of Patent: May 16, 2023Assignee: Future Dial, Inc.Inventors: George Huang, Dwight Sing Huang
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Patent number: 11644530Abstract: A radio frequency (RF) circuit includes an input terminal configured to receive a reception signal from an antenna; an output terminal configured to output a digital output signal; a receive path including a mixer and an analog-to-digital converter (ADC), wherein the receive path is coupled to and between the input and output terminals, wherein the receive path includes an analog portion and a digital portion, and wherein the ADC generates a digital signal based on an analog signal received from the analog portion; a test signal generator configured to generate an analog test signal injected into the analog portion of the receive path; and a digital processor configured to receive a digital test signal from the digital portion, the digital test signal being derived from the analog test signal, analyze a frequency spectrum of the digital test signal, and determine a quality of the digital test signal.Type: GrantFiled: October 2, 2020Date of Patent: May 9, 2023Assignee: Infineon Technologies AGInventors: Alexander Melzer, Francesco Lombardo
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Patent number: 11644559Abstract: According to one embodiment, a radar apparatus includes first antennas, a second antenna, and a third antenna. If the first antennas are used as transmission antennas, the second and third antennas are used as reception antennas. If the second and third antennas are used as the transmission antennas, the first antennas are used as the reception antennas. The first antennas are arranged in a first direction at a first distance and in a second direction crossing the first direction at a second distance. A distance between the second antenna and the third antenna in the first direction is approximately equal to a product of the first distance and a number of first antennas arranged in the first direction.Type: GrantFiled: September 10, 2020Date of Patent: May 9, 2023Assignee: KABUSHIKI KAISHA TOSHIBAInventor: Hiroki Mori
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Patent number: 11644561Abstract: A method of operating a radar sensor system that is configured to determine range and velocity information from radar waves reflected by a scene in an interior of a vehicle for vital sign detection. The method includes steps to decompose reflected and received signals into range and velocity information, to measure the movement over time in specified range gates and to evaluate the similarities between them. Based on the characteristics of similar behaving range bins, it can be decided whether any detected movement is related to an internal or external disturbance or by vital signs.Type: GrantFiled: January 25, 2021Date of Patent: May 9, 2023Assignee: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.Inventors: Janine Cordie, Jochen Landwehr, Parth Raj Singh, Dimitri Tatarinov
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Patent number: 11630185Abstract: A method for calibrating a cascaded radar system includes transmitting first radar transmission signal from a radar device. First radar reflection signals corresponding to the respective first radar transmission signal reflected from calibration target are received at each of the radar devices. The first radar reflection signals are demodulated to generate first baseband signals at each of the radar devices. A second radar transmission signal is modulated with respect to the first radar transmission signal at the respective one of the radar devices. The second radar transmission signal is transmitted from the respective one of the radar devices and are received as second radar reflection signals at each of the radar devices. The second radar reflection signals are demodulated to generate second baseband signals at each of the radar devices, and each of the radar devices are calibrated based on the first and second baseband signals.Type: GrantFiled: November 13, 2020Date of Patent: April 18, 2023Assignee: Texas Instruments IncorporatedInventors: Karthik Subburaj, Vashishth Dudhia, Shailesh Joshi
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Patent number: 11619708Abstract: A method includes generating an initial radar track using radar data and initial radar parameters and an initial camera track using image angular position data, initial camera parameters, and the radar range data in combination with calculating correction parameters to be applied to one of the radar data and the image data by comparing positions for the object from the initial radar track and the initial camera track, the first correction parameters being selected so that, when applied to the data from the other of the radar and the camera, to generate a first corrected track, a degree of correspondence between the first corrected track and the track of the other of the radar and camera is higher than a degree of correspondence between the initial radar track and the initial camera track.Type: GrantFiled: July 28, 2020Date of Patent: April 4, 2023Assignee: TRACKMAN A/SInventors: Thomas Søndergaard, Fredrik Tuxen, Michael Ungstrup
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Patent number: 11619733Abstract: Provided is a measurement device including: a reception strength measurement unit configured to measure reception strengths of radio signals which have difference frequencies and which are transmitted from a plurality of transmission devices; and a recording unit configured to sequentially record the reception strengths for the plurality of transmission devices.Type: GrantFiled: December 11, 2017Date of Patent: April 4, 2023Assignee: NEC CORPORATIONInventors: Jun Uchimura, Hideaki Takahashi
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Patent number: 11609302Abstract: The present disclosure relates to digital signal processing architectures, and more particularly to a modular object-oriented digital system architecture ideally suited for radar, sonar and other general purpose instrumentation which includes the ability to self-discover modular system components, self-build internal firmware and software based on the modular components, sequence signal timing across the modules and synchronize signal paths through multiple system modules.Type: GrantFiled: February 1, 2021Date of Patent: March 21, 2023Assignee: The Tomorrow Companies Inc.Inventors: James R. Carswell, Torry L. Akins
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Patent number: 11604250Abstract: A transceiver may wirelessly transmit a communication signal at a first frequency and a sensing signal at a second frequency. The communication signal may include a command that causes a backscatter node to modulate impedance of an antenna, and thereby modulate reflectivity of the backscatter node. The communication signal may also deliver wireless power to the backscatter node. While the impedance is being modulated in response to the command, the transceiver may transmit the sensing signal and measure wireless reflections. The power of the sensing signal may be much lower than that of the communication signal. The transceiver may frequency hop the sensing signal in a wide band of frequencies and take measurements at each frequency in the hopping. Based on the measurements, a computer may determine time-of-flight or phase of a reflected signal from the backscatter node and may estimate location of the backscatter node with sub-centimeter precision.Type: GrantFiled: January 9, 2021Date of Patent: March 14, 2023Assignee: Massachusetts Institute of TechnologyInventors: Yunfei Ma, Nicholas Selby, Fadel Adib
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Patent number: 11604253Abstract: A vehicular sensing system includes at least one radar sensor disposed at a vehicle and having a field of sensing forward, rearward or sideward of the vehicle. Radar data captured by the radar sensor is received at an electronic control unit (ECU). Received transmitted signals reflected off objects and received at the receiving antennas are evaluated at the ECU to establish surface responses for the objects present in the field of sensing of the radar sensor. A data set of radar data that is representative of an object present in the field of sensing of the radar sensor is compared to stored data sets to determine if the data set corresponds to a particular stored data set of the stored data sets. Responsive to the data set of radar data being determined to correspond to the particular stored data set, the vehicular sensing system classifies the detected object.Type: GrantFiled: December 14, 2020Date of Patent: March 14, 2023Assignee: MAGNA ELECTRONICS INC.Inventors: Helmut A. Wodrich, Walter G. Woodington
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Patent number: 11604268Abstract: This application relates to a passive coherent location (PCL) system. In one aspect, the PCL system includes a signal measurement device configured to receive a plurality of signals from a plurality of illuminators and generate an In-phase signal and a Quadrature signal corresponding to each illuminator using the received signals. The PCL system also includes a signal processing device configured to detect a first target using the In-phase and Quadrature signals and measure a bistatic range of the first target and a bistatic velocity of the first target to generate a plurality of pieces of line track information corresponding to the first target. The PCL system further includes a locating device configured to generate target track information of the first target using the line track information and predict a position vector and a velocity vector of the first target using the target track information.Type: GrantFiled: January 27, 2021Date of Patent: March 14, 2023Assignee: AGENCY FOR DEFENSE DEVELOPMENTInventors: Inhwan Jeong, Sanhae Kim, Kyuha Song, Junil Ahn, Hyungyu Kwak, Jonghwan Lee, Sanghun Im
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Patent number: 11604251Abstract: The present disclosure provides a system for processing radar data. The system may comprise a frequency generator configured to generate a reference frequency signal; a timing module configured to generate a shared clock signal or a plurality of timing signals; and a plurality of radar modules in communication with the frequency generator and timing module. The radar modules may be configured to: (i) receive the reference frequency signal and at least one of a shared clock signal and a timing signal, (ii) transmit a first set of radar signals based in part on the reference frequency signal and at least one of the shared clock signal and the timing signal, and (iii) receive a second set of radar signals reflected from a surrounding environment. The system may comprise a processor configured to process radar signals received by each radar module, by coherently combining radar signals using phase and timestamp information.Type: GrantFiled: August 6, 2020Date of Patent: March 14, 2023Assignee: ZENDAR INC.Inventors: Antonio Puglielli, Ching Ming Wang, Michael Prados, Vinayak Nagpal
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Patent number: 11598844Abstract: Techniques and apparatuses are described that enable full-duplex operation for radar sensing using a wireless communication chipset. A controller initializes or controls connections between one or more transceivers and antennas in the wireless communication chipset. This enables the wireless communication chipset to be used as a continuous-wave radar or a pulse-Doppler radar. By utilizing these techniques, the wireless communication chipset can be re-purposed or used for wireless communication or radar sensing.Type: GrantFiled: August 13, 2020Date of Patent: March 7, 2023Assignee: Google LLCInventors: Jaime Lien, Changzhan Gu
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Patent number: 11573317Abstract: An augmented reality platform and method for use of the same are provided. In one embodiment, an array of locationing devices determine a perspective value of a physical object within a space based on visual-inertial odometry, radio wave positioning, and acoustic positioning. A server determines a decided value of the physical object based on a plurality of perspective values of the physical object received from the array of locationing devices. A digital map and digital library maintained by the server maintain the location of physical objects and spatial experiential objects in order to provide the spatial experiential object to an augmented reality device.Type: GrantFiled: April 5, 2021Date of Patent: February 7, 2023Assignee: Scrrd, Inc.Inventors: Lucas Kane Thoresen, Joshua I. Cohen
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Patent number: 11573313Abstract: A first electronic device, second electronic device, and a method are disclosed herein. The first electronic device includes communication circuitry and a processor that implements the method, including transmitting, using the communication circuit, a distance measurement signal including the first secure preamble to the second electronic device, receiving a response signal through the communication circuit including a second secure preamble generated by the second electronic device from the external electronic device, authenticating the response signal based on the second secure preamble, and based on successful authentication, determining a distance to the second electronic device based on a transmission time of the distance measurement signal and a reception time of the response signal.Type: GrantFiled: April 24, 2020Date of Patent: February 7, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Sejong Yoon, Moonseok Kang, Hyunchul Kim, Yi Yang, Jonghoon Jang, Doosuk Kang