Patents Examined by Marcus E Windrich
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Patent number: 11555732Abstract: Methods and systems for determining fluid levels in a tank comprise a mmWave Control unit configured to generate a millimeter wave chirp that ramps linearly from a starting frequency to a higher frequency within a specified time span. The mmWave Control unit transmits the chirp into the tank and receives one or more chirp reflections from the tank. The mmWave Control unit mixes the chirp with the chirp reflections to generate one or more intermediate frequency signals and processes the one or more intermediate frequency signals to derive one or more distances, each distance representing the distance from the top of the tank to one of the one or more fluids in the tank or an obstruction in the tank. A Telemetry Control unit automatically selects intermediate frequency signals having a signal strength above a predefined minimum or distances within a predefined distance window for further processing.Type: GrantFiled: April 11, 2019Date of Patent: January 17, 2023Assignee: Lasso Technologies, LLCInventor: Peter E. McCormick
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Patent number: 11555680Abstract: A guided projectile including a precision guidance munition assembly utilizes at least one maneuver envelope to optimally control movement of at least one canard to steer the guided projectile during flight. The maneuver envelopes optimize movements of the at least one canard that effectuate movement in either the range direction or the cross-range direction, or both. The maneuver envelope enables optimal timing such that maneuvering in one direction does not come at the expense of maneuver authority in the other direction.Type: GrantFiled: August 30, 2019Date of Patent: January 17, 2023Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: Paul Zemany, Matthew Chrobak, Egor V. Degtiarev
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Patent number: 11550028Abstract: The description below relates to a method for a radar sensor. According to one example implementation, the method comprises receiving configuration data and storing the received configuration data in a first radar chip having multiple transmission channels. The configuration data contain multiple parameter sets for a chirp sequence and association information representing an association of a respective chirp of the chirp sequence with one of the multiple parameter sets. The method further comprises receiving a trigger signal in the first radar chip. The trigger signal indicates the beginning of a respective chirp of the chirp sequence. The transmission channels mentioned are repeatedly configured in sync with the trigger signal, wherein for each chirp of the chirp sequence the transmission channels are configured according to the respective association information.Type: GrantFiled: July 15, 2019Date of Patent: January 10, 2023Assignee: Infineon Technologies AGInventors: Alexander Melzer, Bernhard Greslehner-Nimmervoll, Clemens Pfeffer
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Patent number: 11536824Abstract: A distance measuring apparatus according to an embodiment includes, a filter section configured to perform band limitation on a transmission signal and output the transmission signal, and to perform band limitation on a reception signal from an antenna section and output the reception signal, a distance measuring section configured to perform a distance measurement computation based on the transmission signal and the reception signal, and to obtain a delay of a signal passing through the filter section and perform calibration of the distance measurement computation, a signal interruption section configured to interrupt transmission of a signal between the filter section and the antenna section, and a control section configured to control the signal interruption section to interrupt the transmission of the signal during a period of the calibration.Type: GrantFiled: March 6, 2020Date of Patent: December 27, 2022Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATIONInventors: Takayuki Kato, Shoji Ootaka, Tsuneo Suzuki, Masaki Nishikawa, Katsuya Nonin, Hiroshi Yoshida, Yoshiharu Nito, Masayoshi Oshiro
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Patent number: 11536826Abstract: A tracking device is configured to estimate a track for at least one possible target and is configured to receive incoming measurements and to process measurements and tracks. The tracking device includes a storage and a computational device. The tracking device is also configured to divide all measurements into a set of considered measurements and a set of unconsidered measurements for each passive track.Type: GrantFiled: September 8, 2020Date of Patent: December 27, 2022Assignee: TERMA A/SInventor: Esben Nielsen
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Patent number: 11520051Abstract: A system and method for detecting a rotary wing aircraft. A return electromagnetic signal, reflected by a rotary wing aircraft, is received through an electromagnetic signal detection apparatus. The aircraft includes a plurality of propeller blades attached to at least one motor. At least one propeller blade has at least one portion with a reflectivity different from other portions. A first time series data of the return electromagnetic signal is received. A second time series data is determined based on the first time series data and a predefined threshold. A characteristic of the second time series data is used to determine whether it corresponds to the known aircraft.Type: GrantFiled: October 16, 2019Date of Patent: December 6, 2022Assignee: Electronic Warfare associates, Inc.Inventors: Carl Guerreri, Oscar Fahrenfeld, Jason Pizzillo, Tom Bonazza, Deborah McNally
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Patent number: 11506528Abstract: A point level switch for industrial interface detection is described, the switch including a microwave waveguide sensor in place of the more commonly encountered vibrating fork.Type: GrantFiled: December 17, 2018Date of Patent: November 22, 2022Assignee: ROSEMOUNT TANK RADAR ABInventor: Jingdong Zhang
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Patent number: 11506749Abstract: The present disclosure relates to adjusting a suppression signal for suppressing a radio frequency (RF) interference signal in a received signal. A method includes generating an RF signal having a first frequency offset from an interference frequency; generating the suppression signal having a second frequency offset from the interference frequency; coupling the suppression signal into the received signal in order to generate a receiver input signal; mixing the receiver input signal with the RF signal in order to generate a mixer output signal; adjusting an amplitude of the suppression signal in order to align amplitudes of different components of the mixer output signal; coupling an adjusted suppression signal, having the interference frequency and the adjusted amplitude, into the received signal; and varying a phase of the adjusted suppression signal in order to reduce a frequency component of the mixer output signal that has the first frequency offset.Type: GrantFiled: November 11, 2019Date of Patent: November 22, 2022Assignee: Infineon Technologies AGInventors: Martin Dechant, Stefan Herzinger
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Patent number: 11487003Abstract: A radar system that can block false echoes includes: a local oscillator configured to generate a chirp signal comprising a plurality of chirps, each having a corresponding envelope; a transmitter configured to transmit a signal corresponding to the chirp signal; and a modulation circuit configured to modulate the transmitted signal by regulating a magnitude of one or more portions of the chirp envelopes in a predetermined pattern such that the radar system can discern false echoes which do not match the pattern.Type: GrantFiled: January 9, 2020Date of Patent: November 1, 2022Assignee: Ay Dee Kay LLCInventors: Jian Bai, Nader Rohani
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Patent number: 11480413Abstract: [A system and method for dynamic autopilot control comprising providing input to a guidance and control autopilot comprising Mach and dynamic pressure; tailoring parameters of the autopilot, the parameters comprising: roll gain; a pitch/yaw gain; a pitch/yaw loop compensator frequency; a guidance filter bandwidth; a guidance filter lead compensator frequency; and a navigation gain.Type: GrantFiled: April 10, 2017Date of Patent: October 25, 2022Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: David J. Schorr, Jason H. Batchelder, Jeremy B. Gibson, James H. Steenson, Jr.
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Patent number: 11474198Abstract: Operating a police radar detector to suppress nuisance radar alerts due to received signals that are not police radar signals includes receiving electromagnetic signals; mixing received electromagnetic signals with a local oscillator signal that is swept at a constant sweep rate; and accumulating a virtual image of the signal environment represented by received electromagnetic signals. Analysis of the virtual image is performed for signals suspected of being nuisance signals that could result in nuisance radar alert so that any nuisance signals within the virtual image can be identified and ignored by the alarm portion of the police radar detector.Type: GrantFiled: January 24, 2020Date of Patent: October 18, 2022Assignee: Valentine Research, Inc.Inventors: Michael D. Valentine, Stephen R. Scholl, Richard L. Dickerson, Marwan E. Nusair
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Patent number: 11467279Abstract: An aspect of the present disclosure is directed to and provides radar-reflecting systems and apparatus that employ metasurfaces to produce enhanced radar cross sections that are greater than those produced by the geometry of the surfaces alone. Another aspect of the present disclosure is directed to and provides heat-ducting systems and apparatus that include metasurfaces. A further aspect of the present disclosure is directed to and provides cards with metasurfaces. Exemplary embodiments utilize fractal plasmonic surfaces for a metasurface.Type: GrantFiled: November 15, 2021Date of Patent: October 11, 2022Assignee: Fractal Antenna Systems, Inc.Inventors: Nathan Cohen, Philip Salkind
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Patent number: 11454716Abstract: Systems, methods, and non-transitory computer-readable media provide an adaptive gating mechanism for radar tracking initialization. Specifically, the radar system obtains measurement data of target points, and then determines, based on the measured position and dopplers of points in the first few scans, whether the doppler and displacement parameters satisfy an initialization constraint. When the initialization constraint is not satisfied, the radar system flags the respective cluster with an initialization flag, and adaptively uses the measured position and doppler of scanned points to determine the gating size for the next scan, instead of using a fixed gate size. When the initialization flag of the same cluster across a few consecutive scans satisfies a combination logic, the radar system determines that the tracking enters into the association stage, e.g., the radar system formally generates a track for the target points along a series of scans.Type: GrantFiled: December 30, 2019Date of Patent: September 27, 2022Assignee: Woven Planet North America, Inc.Inventors: Mohammad Emadi, Jamaledin Izadian, Ali Mostajeran, Renyuan Zhang
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Patent number: 11454715Abstract: Systems, methods, and circuitries are provided for generating a frequency hopping radar signal. In one example, a radar signal modulator include a frequency offset generator, a phase locked loop, and a bandwidth compensation circuitry. The frequency offset generator is configured to generate a sequence of frequency offsets. The bandwidth compensation circuitry is configured to combine a modulation signal and the sequence of frequency offsets to generate a bandwidth compensated signal. The PLL is configured to receive the bandwidth compensated signal and generate a frequency hopping radar signal based on the bandwidth compensated signal.Type: GrantFiled: December 6, 2019Date of Patent: September 27, 2022Assignees: Infineon Technologies AG, POLITECNICO DI MILANOInventors: Dmytro Cherniak, Salvatore Levantino, Mario Mercandelli
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Patent number: 11454719Abstract: A radar sensing system for a vehicle includes a radar sensor having a plurality of transmitting antennas and a plurality of receiving antennas. The transmitting antennas and the receiving antennas are arranged in multiple rows and columns of transmitting antennas and multiple rows and columns of receiving antennas. A control controls radar transmission by the transmitting antennas and receives outputs from the receiving antennas. The control applies two dimensional multiple input multiple output processing to outputs of the receiving antennas. With two dimensional multiple input multiple output processing applied to outputs of the receiving antennas, the transmitting antennas and the receiving antennas achieve an enhanced two dimensional virtual aperture.Type: GrantFiled: July 7, 2017Date of Patent: September 27, 2022Assignee: MAGNA ELECTRONICS INC.Inventors: Holger Hess, Joern Ihlenburg
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Patent number: 11422226Abstract: A radar system and method are provided for reducing multipath interference signals. The multipath interference signals can be reduced by the radar system emitting electromagnetic waves that creates a null in the direction of expected multipath interference signals, such that the multipath interference signals are void (or substantially void) from signals received by the radar system.Type: GrantFiled: December 10, 2019Date of Patent: August 23, 2022Assignee: RAYTHEON COMPANYInventor: Barbara Pauplis
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Radar leakage cancelation based on spatiotemporal relationship of transmit and receive antenna pairs
Patent number: 11402465Abstract: A method and electronic device for leakage cancellation. The electronic device includes a first antenna pair, a memory, and a processor. The first antenna pair includes a first transmitter antenna configured to transmit signals and a first receiver antenna configured to receive signals. The memory is configured to store data. The processor is configured to identify, from the data stored in the memory, a first leakage factor associated with at least the first antenna pair, control the first transmitter antenna to transmit a first signal, generate a first CIR based on receipt, by the first receiver antenna, of reflection of the first signal, determine leakage in the first CIR based on at least the identified first leakage factor, and cancel the determined leakage from the first CIR.Type: GrantFiled: October 29, 2019Date of Patent: August 2, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Vutha Va, Wenxun Qiu, Boon Loong Ng -
Patent number: 11385025Abstract: The system and method of swarm navigation using a follow the forward approach. Using on-board sensors and communications links between members of a swarm, numerous targets can be engaged more quickly and precisely. In some cases, a designator is used to help a forward of the swarm navigate to a target using image-based navigation up until terminal guidance is used. A cascade of messages are projected back to a following round so that, each member of a swarm can determine a best target/round match and provide real-time, up-to-date information regarding targets' locations and each round's location, range to target, target selection, and the like.Type: GrantFiled: December 18, 2019Date of Patent: July 12, 2022Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: Michael J. Choiniere, Matthew F. Chrobak
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Patent number: 11378642Abstract: An example method of a wireless device includes, determining a first attribute value of a first radio frequency (RF) signal received through a first antenna during a first period, determining a first attribute value of a second RF signal received through the first antenna during a second period, determining a second attribute value of the first RF signal received through a second antenna during the first period, and determining a second attribute value of the second RF signal received through a third antenna during the second period. The method further includes compensating for a determined difference between a first offset introduced by a first oscillator and a second offset introduced by a second oscillator and then estimating an angle of arrival associated with the first and second RF signals, based on attribute values of the first RF signal and the second RF signal.Type: GrantFiled: October 9, 2019Date of Patent: July 5, 2022Assignee: Cypress Semiconductor CorporationInventor: Victor Simileysky
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Patent number: 11378676Abstract: A device for detecting and/or tracking a projectile has a receiving antenna, for receiving at least an electromagnetic signal emitted by at least one radar, at least one amplifier configured to amplify the electromagnetic signal received by the receiving antenna, and at least one emitting antenna. The emitting antenna is configured to return, at an output of the device, an amplified electromagnetic signal for calculating data indicative of the trajectory of the projectile based at least on the amplified electromagnetic signal. A system for detecting a projectile has a transmitting device mounted on the projectile, a radar configured to sense an electromagnetic signal produced and sent by the transmitting device. The signals emitted from the projectile are limited to the electromagnetic signal sent by the transmitting device, and a processing unit, configured to calculate data indicative of the trajectory of the projectile, based on the sensing of the electromagnetic signal.Type: GrantFiled: November 14, 2017Date of Patent: July 5, 2022Assignee: ELTA SYSTEMS LTD.Inventors: Noam Frenkel, Josef Steinmetz