Patents Examined by Erin F Heard
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Patent number: 11573287Abstract: A method of updating background components of an echo signal for radar includes: transforming M sets of N pieces of time domain data to frequency domain to generate M sets of P magnitudes corresponding to P frequency bins, wherein the M sets of N pieces of time domain data include spatial information of an object; and updating P background components corresponding to the P frequency bins according to the M sets of P magnitudes corresponding to the P frequency bins.Type: GrantFiled: September 22, 2020Date of Patent: February 7, 2023Assignee: RichWave Technology Corp.Inventor: Chun-Hsien Hsiao
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Patent number: 11567184Abstract: An operation method performed by an apparatus for detecting multiple targets may comprise transmitting first signals using Mt transmit antennas included in the apparatus; receiving the first signals reflected by the multiple targets through Mr receive antennas included in the apparatus; generating a first function for estimating a velocity and an azimuth of each of the multiple targets using the first signals and the reflected first signals; estimating a velocity and an azimuth that maximize a result of the first function as a velocity and an azimuth of a first target closest to the apparatus among the multiple targets; generating a second function by cancelling interference caused by the first target from the first function; and estimating a velocity and an azimuth that maximize a result of the second function as a velocity and an azimuth of a second target among the multiple targets.Type: GrantFiled: August 23, 2019Date of Patent: January 31, 2023Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, PUKYONG NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATIONInventors: Sung Hyun Hwang, Woo Jin Byun, Sung Jin Yoo, Jae Hyun Park
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Patent number: 11567191Abstract: A method and apparatus with vehicle radar control is disclosed. An apparatus with vehicle radar control includes a radio frequency (RF) transceiver including a transmitting antenna array and a receiving antenna array, and at least one processor configured to collect environmental information of the vehicle, determine a radar mode of the vehicle based on the collected environmental information, generate one or more control signal configured to control one or more of the transmitting antenna array and the receiving antenna array based on the determined radar mode, and provide the generated one or more control signals to the RF transceiver, wherein one or more of the transmitting antenna array and the receiving antenna array operate according to the one or more generated control signals.Type: GrantFiled: October 22, 2018Date of Patent: January 31, 2023Assignee: Samsung Electronics Co., Ltd.Inventor: Byung Kwan Kim
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Patent number: 11567171Abstract: Systems and methods are provided for generating a radar model for a target object. In embodiments, a target simulation model is received that represents one or more physical aspects of a target object, an environment simulation model is received that represents one or more physical aspects of an environment object, and a target distance parameter is received that identifies a reference distance between the target object and a radar system to be simulated. A simulation model is generated based, at least in part, on the target simulation model, the environment simulation model, and the reference distance, and further based on a target aspect angle that identifies an angular position of the target object in relation to the radar system.Type: GrantFiled: October 9, 2018Date of Patent: January 31, 2023Assignee: Ansys, Inc.Inventor: Shawn Raymond Carpenter
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Patent number: 11567183Abstract: A multiple input multiple output (MIMO) radar system for detecting a moving object is based on an explicit signal model. The explicit signal model accounts for waveform separation residuals by relating measurements of the virtual array to an auto-term including a Kronecker product of object-receiver signatures and transmitter-object signatures; and a cross-term including a Kronecker product of object-receiver signatures and transmitter-object residual signatures. The radar system uses a spatial MIMO object detector that is based on the explicit signal model to detect the moving object.Type: GrantFiled: April 8, 2020Date of Patent: January 31, 2023Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Pu Wang, Petros Boufounos, Hassan Mansour, Philip Orlik
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Patent number: 11555908Abstract: A method includes generating a first modulated continuous wave from a generating location; transmitting the first modulated continuous wave to an object positioned at a distance from the generating location; generating a second modulated continuous wave from the generating location, wherein the second modulated continuous wave is generated at a predetermined time that is different from a predetermined time at which the first modulated continuous wave is generated; receiving, at a mixer, the first modulated continuous wave from the object; receiving, at the mixer, the second modulated continuous wave from the generating location; mixing the received first modulated continuous wave with the second modulated continuous wave to produce a beat signal to determine a range of the object from the generating location; and outputting the determined range of the object from the generating location.Type: GrantFiled: September 6, 2019Date of Patent: January 17, 2023Assignee: International Business Machines CorporationInventor: Asaf Tzadok
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Patent number: 11555885Abstract: An embodiment of the present invention is a method of transmitting a multibeam jamming signal of an array antenna and including: a signal receiving operation of receiving a radar signal from a plurality of radars; a signal analysis operation of analyzing the received radar signal and identifying an angle and frequency of the signal; a control phase value calculating operation of calculating a control phase value of each array path of the array antenna for each of the identified angles; and a multibeam jamming signal transmission operation of calculating a multibeam jamming signal based on the calculated control phase value and transmitting the multibeam jamming signal for each identified frequency.Type: GrantFiled: July 10, 2019Date of Patent: January 17, 2023Assignee: AGENCY FOR DEFENSE DEVELOPMENTInventors: Yeon Soo Jang, In Seon Kim, Sang Won Kim, Beom Jun Park, Un Seob Jeong
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Patent number: 11555920Abstract: Methods and systems for estimating vehicle velocity based on radar data. The methods and systems include receiving a set of range-Doppler-beam, RDB, maps from radars located on a vehicle and performing an optimization process that adjusts an estimate of vehicle velocity so as to optimize a correlation score. The optimization process includes iteratively: spatially registering the set of RDB maps based on the current estimate of vehicle velocity, determining the correlation score based on the spatially registered set of RDB maps, and outputting an optimized estimate of vehicle velocity from the optimization process when the correlation score has been optimized. The methods and systems control the vehicle based at least in part on the optimized estimate of vehicle velocity.Type: GrantFiled: October 28, 2020Date of Patent: January 17, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Oren Longman, Igal Bilik
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Patent number: 11550027Abstract: A radar system is disclosed that provides joint object detection and communication capabilities. The radar system includes a communication signal generator that provides a communication signal, a pre-distortion module that applies a pre-distortion to the communication signal to provide a pre-distorted communication signal, a linear frequency modulation (LFM) signal generator that provides a LFM signal, and a mixer that mixes the pre-distorted communication signal onto the LFM signal to provide a radar signal to be transmitted by the radar system. The radar system further includes an all-pass filter that filters a plurality of de-ramped reflected images of the radar signal to provide a filtered signal. Each de-ramped reflected image includes an associated image of the pre-distorted communication signal. The all-pass filter provides a linear group delay, and a non-linear phase response. The pre-distortion is an inverse of the non-linear phase response of the all-pass filter.Type: GrantFiled: May 4, 2020Date of Patent: January 10, 2023Assignee: NXP B.V.Inventors: Francesco Laghezza, Franz Lampel
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Patent number: 11550064Abstract: An apparatus and a method for providing a global localization output are provided. When the apparatus receives navigation signals, the apparatus processes the signals to determine, based on a fixed earth-centered, earth-fixed (ECEF) reference pose of a reference point in an ECEF coordinate, a new ECEF pose, and to convert the fixed ECEF reference pose to an east-north-up (ENU) reference pose in an ENU coordinate. When the apparatus determines that a jump occurs in the new ECEF pose based on a pose change between the new ECEF pose and a previous ECEF pose, the apparatus calculates a reference shift of the ENU reference pose based on the pose change to absorb the jump in the ENU coordinate, and updates the ENU reference pose based on the reference shift. Thus, a new ENU local pose may be obtained using the ENU reference pose.Type: GrantFiled: June 30, 2021Date of Patent: January 10, 2023Assignee: GUANGZHOU XIAOPENG AUTOPILOT TECHNOLOGY CO., LTD.Inventors: Hairuo Zhuang, Amit Bansal, Venkatesan Nallampatti Ekambaram, Vignesh Sethuraman
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Patent number: 11550030Abstract: In a frequency-offset self-injection-locked (FOSIL) radar, a first mixer is provided to mix a first oscillation signal of a first injection-locked oscillator (ILO) and a second oscillation signal of a second ILO so as to cancel out the frequency drifts of the first and second oscillation signals. Accordingly, the transmit frequency of the FOSIL radar can remain constant to mitigate the EMI issue.Type: GrantFiled: November 30, 2020Date of Patent: January 10, 2023Assignee: NATIONAL SUN YAT-SEN UNIVERSITYInventors: Fu-Kang Wang, Kuan-Hung Chen, Pin-Hsun Juan
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Patent number: 11550049Abstract: Radar based HR and BR measurements by simultaneous decoding is a technical problem due to presence of intermodulation of BR and HR harmonics, which degrades simultaneous decoding. Embodiments herein provide a method and system for unobtrusive liveliness detection and monitoring of a subject using a Dual Frequency Radar (DFR) in an IOT network. The system has the capability to completely process the captured raw signals onboard to by applying required signal conditioning and extraction of relevant information using unique signal processing techniques for determining the HR and the BR of the subject accurately. The intermodulation of BR and HR harmonics is eliminated by the system by performing frequency spectrum averaging of both radars signals, which improves the accuracy. Further, the system is configured with a light MQTT protocol and encoding modules for any data to be shared for off board processing, ensuring data security and privacy compliance.Type: GrantFiled: November 25, 2020Date of Patent: January 10, 2023Assignee: Tata Consultancy Services LimitedInventors: Anwesha Khasnobish, Arindam Ray, Smriti Rani, Amit Swain, Chirabrata Bhaumik, Tapas Chakravarty
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Patent number: 11543518Abstract: A vehicle radar apparatus and a method of controlling the vehicle radar apparatus, including a transmission array antenna that radiates a radar signal for forward detection; a reception array antenna that operates at N (N is an integer greater than zero) reception channels for receiving the radar signal that is radiated by the transmission array antenna, reflects from a target, and returns; an azimuth angle estimation unit that estimates an azimuth angle of the target using each non-offset reception channel of the N reception channels; and an elevation angle estimation unit that estimates an elevation angle of the target in a diagonal direction in which each non-offset channel of the N reception channels is tilted with respect to an azimuth angle of an offset reception channel thereof.Type: GrantFiled: May 21, 2020Date of Patent: January 3, 2023Assignee: Hyundai Mobis Co., Ltd.Inventor: Se Yoon Kim
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Patent number: 11536831Abstract: An autonomous vehicle (AV) includes a radar sensor system and a computing system that computes velocities of an object in a driving environment of the AV based upon radar data that is representative of radar returns received by the radar sensor system. The AV can be configured to compute a first velocity of the object based upon first radar data that is representative of the radar return from a first time to a second time. The AV can further be configured to compute a second velocity of the object based upon second radar data that includes at least a portion of the first radar data and further includes additional radar data representative of a radar return received subsequent to the second time. The AV can further be configured to control one of a propulsion system, a steering system, or a braking system to effectuate motion of the AV based upon the computed velocities.Type: GrantFiled: June 15, 2020Date of Patent: December 27, 2022Assignee: GM CRUISE HOLDINGS LLCInventor: Zhi Yuan Sherwin Lau
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Patent number: 11531099Abstract: Systems and methods for detection and reporting of small targets to an operational area. Exemplary embodiments are presented to detect targets such as avian species, UAS, UAV, and drones, and transmit unique small target identifier information via data link, such as ADS-B, to an operational area.Type: GrantFiled: January 23, 2018Date of Patent: December 20, 2022Assignee: Ohio UniversityInventors: Chris G. Bartone, Anthony Milluzzi
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Patent number: 11531083Abstract: Techniques are disclosed for systems and methods to provide a staggered multichannel transducer in a ranging system configured to perform remote sensing. The staggered multichannel transducer may extend in a first direction and one or more transducer elements of the array may offset from the other transducer elements in a second direction perpendicular to the first direction. The staggered arrangement of the transducer elements may improve remote sensing performance to produce accurate remote sensing data and/or imagery. The staggered arrangement also may reduce a number of transducer elements used in the transducer array which reduce the cost and complexity of the transducer array. Further, the staggered arrangement in a linear transducer array also allows for two-dimensional beam forming.Type: GrantFiled: November 21, 2019Date of Patent: December 20, 2022Assignee: Teledyne FLIR, LLCInventors: Paul Stokes, Patrick Lamontagne, Pierre Poitevin
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Patent number: 11525911Abstract: Systems and methods to control a radar system to perform cross-traffic management in a vehicle with a trailer involve determining a location of the trailer behind the vehicle, and adjusting an initial field of view of the radar system to a modified field of view that excludes the location of the trailer. One or more other vehicles are detected with the radar system having the modified field of view. A cross-traffic alert is implemented based on the detecting the one or more other vehicles.Type: GrantFiled: November 14, 2019Date of Patent: December 13, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jay H. Sim, Justin K. Francisco, Kevin G. Korchmaros
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Patent number: 11525909Abstract: A measurement method performed at a receiving device involves sequentially receiving RF signals, each comprising a different set of at least first and second tones at differing frequencies. Complex gain responses (CGRs) for each of the first and second tones of each of the RF signals are measured. A phase offset is determined between: i) a phase of the CGR of the second tone of a first RF signal, and ii) a phase of the CGR of the first tone of a second RF signal. A coherent channel frequency (CCF) response of the second tone of the second RF signal is computed by adjusting a phase of the CGR of the second tone of the first RF signal by the phase offset. A processor executes a signal paths calculation algorithm using the CCF response of the second tone of the second RF signal to determine an angle or time of arrival of the first RF signal.Type: GrantFiled: November 21, 2019Date of Patent: December 13, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Fei Tong, Jacob Christopher Sharpe
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Patent number: 11525886Abstract: A novel and useful system and method by which radar angle and range resolution are significantly improved without increasing complexity in critical hardware parts. A multi-pulse methodology is described in which each pulse contains partial angular and range information consisting of a portion of the total CPI bandwidth, termed multiband chirp. Each chirp has significantly reduced fractional bandwidth relative to monoband processing. Each chirp contains angular information that fills only a portion of the ‘virtual array’, while the full virtual array information is contained across the CPI. This is done using only a single transmission antenna per pulse, thus significantly simplifying MIMO hardware realization, referred to as antenna-multiplexing (AM). Techniques for generating the multiband chirps as well as receiving and generating improved fine range-Doppler data maps. A windowing technique deployed in the transmitter as opposed to the receiver is also disclosed.Type: GrantFiled: May 6, 2019Date of Patent: December 13, 2022Inventors: Yoram Stettiner, Noam Arkind
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Patent number: 11525928Abstract: Provided is an electronic device capable of suitably determining whether a user is moving or stationary. The electronic device includes a speed acquisition unit that acquires a user's moving speed and a processor that determines whether the user is in a moving state or in a pause state. In the moving state, the processor determines that a transition from the moving state to the pause state has occurred in the case where the moving speed acquired by the speed acquisition unit is less than the pause speed threshold. In the pause state, the processor determines that a transition from the pause state to the moving state has occurred in the case where the moving speed acquired by the speed acquisition unit is equal to or more than the moving speed threshold.Type: GrantFiled: April 14, 2020Date of Patent: December 13, 2022Assignee: CASIO COMPUTER CO., LTD.Inventor: Keiichi Imamura