Patents Examined by Helena H Seraydaryan
  • Patent number: 11994381
    Abstract: An apparatus for measuring a surface comprises first sensors, which are distributed two-dimensionally in space, said first sensors interacting with the surface in a contactless manner using a microwave range of electromagnetic signals, and the first sensors receive at least two of the microwave signals of the interaction with information relating to distances between the sensors and the surface as a reflection, the microwave signals of the interaction representing both dimensions of the space of two-dimensional distribution of the first sensors. A data processing unit receives said information on the distances, and determines at least one geometrical parameter of the surface on the basis of the information.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: May 28, 2024
    Assignee: Senfit Oy
    Inventors: Pekka Jakkula, Juha Heikkinen, Matti Limingoja, Mikko Vuolteenaho
  • Patent number: 11994577
    Abstract: In an object tracking device, a candidate generator is configured to, given P=Kmax?Kmin+1 that defines a range of foldings of velocity by phase rotation from Kminth to Kmaxth foldings, calculate P velocity estimates for each of initial observation points. The candidate generator sets the number of foldings Kmin and the number of foldings Kmax such that Kmin<0 and |Kmin|>|Kmax| when an absolute value of an observation angle representing a direction of the observation point is equal to or less than a first threshold value, and Kmax>0 and |Kmin|<|Kmax| when the absolute value of the observation angle is greater than a second threshold. A velocity determiner is configured to, for each set of candidate targets, select one of the candidate targets belonging to the set of candidate targets, thereby determining the velocity of a target associated with the initial observation point.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: May 28, 2024
    Inventors: Yusuke Akamine, Takuya Takayama
  • Patent number: 11994578
    Abstract: A system for virtual Doppler and/or aperture enhancement, preferably including one or more transmitter arrays, receiver arrays, and/or signal processors, and optionally including one or more velocity sensing modules. A method for virtual Doppler and/or aperture enhancement, preferably including transmitting a set of probe signals, receiving a set of reflected probe signals, and/or analyzing the set of received probe signals.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: May 28, 2024
    Assignee: Oculli Corp.
    Inventors: Lang Hong, Steven Hong
  • Patent number: 11988739
    Abstract: A method of radar detection of targets in an environment, comprising cyclically obtaining a detection profile that associates with each position in the protected area an amount of radar signal that has been reflected, and detecting targets from the detection profile in different modes. A base mode is used for a first series of cycles and is insensitive to motionless targets and sensitive to dynamic targets that move between different locations in the protected area. When the base mode detects a target, two additional modes are started, which are active in different areas. In first areas, a fine movement detection mode is used, which also neglects motionless targets and may be more sensitive than the base mode. In second areas, a presence mode detects both dynamic and motionless targets. When neither the presence mode nor the fine movement mode detects any target for a sufficient time, no people in danger are deemed to be present in the area and the base mode may be restored.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: May 21, 2024
    Assignee: Inxpect S.p.A.
    Inventors: Ugo Bertacchini, Alessio Degani, Andrea Tartaro
  • Patent number: 11921185
    Abstract: 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: Grant
    Filed: July 1, 2022
    Date of Patent: March 5, 2024
    Assignee: DecaWave, Ltd.
    Inventors: Michael McLaughlin, Gavin Marrow, Igor Dotlic
  • Patent number: 11903671
    Abstract: A frequency modulated continuous wave radar system includes at least one identity tag, respectively disposed next to at least one test subject; and a frequency modulated continuous wave radar identity recognition device, including an identity recognition control module, for controlling a test identity tag of the at least one identity tag to be turned on to generate a specific tag reflection signal corresponding to an identity frequency in response to a chirp signal; and a frequency modulated continuous wave radar, for transmitting the chirp signal and receiving at least one reflection signal of the at least one test subject and the specific tag reflection signal in response to the chirp signal, to calculate and determine that the specific tag reflection signal and a specific reflection signal of the at least one reflection signal are corresponding to an adjacent position information. The specific reflection signal is corresponding to test subject information.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: February 20, 2024
    Assignee: Wistron Corporation
    Inventors: Yao-Tsung Chang, Yin-Yu Chen, Chuan-Yen Kao
  • Patent number: 11892540
    Abstract: To provide a vehicle-mounted radar system capable of improving object detection performance depending on a situation. The vehicle-mounted radar system includes laser radars 2A to 2D that irradiate the surroundings of a vehicle 1 with a laser beam and receive light reflected by an object around the vehicle 1, and a control device 3 that controls the laser radars 2A to 2D and recognizes an object based on light reception results of the laser radars 2A to 2D. The control device 3 determines whether a laser beam of any of the laser radars 2A to 2D is blocked by the object, and thus an undetected area is created, based on a recognition result of the object. Thus, for example, when the laser beam of the laser radar 2B is blocked by another vehicle 10, and thus an undetected area 11 is created, a detection range of the laser radar 2A adjacent to the laser radar 2B is expanded so that at least a portion of the undetected area 11 is allowed to be detected.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: February 6, 2024
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Masayoshi Kuroda, Kosuke Sakata
  • Patent number: 11879990
    Abstract: In one example, a continuous-wave radar circuit receives reflection signals, computer processing circuitry processes data corresponding to the reflection signals, and emulation circuitry introduces a plurality of diagnostic data sets into the radar circuit to cause the radar circuit to process simulated reflection signals as though the simulated reflection signals are reflections from objects remote from the apparatus. The radar circuit may receive the reflection signals in response to chirp sequences actually transmitted as reflections from objects.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: January 23, 2024
    Assignee: NXP B.V.
    Inventors: Haridas Vilakathara, Kai Peter Ludwig Gossner, Artur Tadeusz Burchard
  • Patent number: 11876548
    Abstract: Wireless devices, and particularly mobile devices such as cellphones, PDAs, computers, navigation devices, etc., as well as other devices which transmit or receive data or other signals at multiple frequency bands utilize at least one antenna to transmit and receive and a plurality of different bands (e.g., GSM cellular communication band; Bluetooth short range communication band; ultrawideband (UWB) communications, etc.). These wireless devices can simultaneously transmit or receive at a plurality of different bands, or simultaneously transmit and receive at different bands. The wireless devices have the ability to use a single physical structure (e.g., an antenna for transmission and reception of many different bands. The antenna can he either actively tuned or passively tuned using one or more elements. The antenna may comprise a plurality of antenna elements or antennas, and at least one antenna may be a steerable antenna.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: January 16, 2024
    Inventor: Theodore S. Rappaport
  • Patent number: 11874397
    Abstract: A radar device includes: a signal transmission unit for generating a MIMO signal including a plurality of pulse signals, and radiating the MIMO signal into space; a signal reception unit for receiving a reflection signal resulting from reflection, by a target, of the MIMO signal radiated from the signal transmission unit; a demodulation unit for demodulating the MIMO signal from the reflection signal received by the signal reception unit; a beam-forming unit for forming beams in a plurality of different directions, by multiplying the plurality of pulse signals included in the MIMO signal demodulated by the demodulation unit by a respective plurality of different weighting coefficients; a control unit for changing noise power included in each of the beams in the plurality of directions formed by the beam-forming unit, by shifting a phase of the MIMO signal generated by the signal transmission unit and adjusting the plurality of weighting coefficients on the basis of an amount of phase shift of the phase; and a
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: January 16, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventor: Kentaro Isoda
  • Patent number: 11860301
    Abstract: A testing device for testing a distance sensor that operates using electromagnetic waves includes: a receiving element for receiving an electromagnetic free-space wave as a receive signal (SRX); and a radiating element for radiating an electromagnetic output signal (STX). In a test mode, a test signal unit generates a test signal (Stest), and the radiating element is configured to radiate the test signal (Stest) or a test signal (S?test) derived from the test signal (Stest) as the electromagnetic output signal (STX). In the test mode, an analysis unit is configured to analyze the receive signal (SRX) or the derived receive signal (S?RX) in terms of its phase angle (Phi) and/or amplitude (A) and store a determined value of phase angle (Phi) and/or amplitude (A) synchronously with the radiation of the test signal (Stest) or of the derived test signal (S?test) as the electromagnetic output signal (STX).
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: January 2, 2024
    Assignee: DSPACE GMBH
    Inventor: Jeffrey Paul
  • Patent number: 11846696
    Abstract: A radar system including a transmitter configured for installation and use with the radar system and configured to transmit radio signals. The transmitted radio signals are defined by a spreading code. The radar system also includes a receiver configured for installation and use with the radar system and configured to receive radio signals that include transmitted radio signals transmitted by the transmitter and reflected from objects in an environment. The receiver is configured to convert the received radio signals into frequency domain received samples. The receiver is also configured to correlate the frequency domain received samples to detect object distance.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: December 19, 2023
    Assignee: Uhnder, Inc.
    Inventors: Raghunath K. Rao, Curtis Davis, Monier Maher, Steve Borho, Nikhilesh Bhagat, Jean P. Bordes
  • Patent number: 11835645
    Abstract: Concepts and examples pertaining to reconfigurable radio frequency (RF) front end and antenna arrays for radar mode switching are described. A processor associated with a radar system selects a mode of a plurality of modes in which to operate the radar system. The processor then controls the radar system to operate in the selected mode by utilizing a plurality of antennas in a respective configuration of a plurality of configurations of the antennas which corresponds to the selected mode. Each configuration of the plurality of configurations of the antennas results in respective antenna characteristics. Each configuration of the plurality of configurations of the antennas utilizes a respective number of antennas of the plurality of antennas.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: December 5, 2023
    Inventors: Tzu-Chin Lin, Chih-Ming Hung
  • Patent number: 11828781
    Abstract: This application provides a transmission absorbing structure and an antenna in-band characteristics test system, relating to design of microwave antennas for radar and communication systems. The transmission absorbing structure includes a coupling feed structure provided with coupling slots for energy coupling with a to-be-tested antenna, two equivalent electric wall structures parallel to each other, and two equivalent magnetic wall structures parallel to each other. The two equivalent electric wall structures and the two equivalent magnetic wall structures together enclose the coupling feed structure, and form a transverse electromagnetic mode (TEM) waveguide. The system includes a vector network analyzer, a to-be-tested antenna electrically connected to the vector network analyzer, and a transmission absorbing structure.
    Type: Grant
    Filed: June 8, 2023
    Date of Patent: November 28, 2023
    Inventors: Xiaopeng Lu, Yan Li, Lei Sheng, Zicheng Zhou, Yufan Yao, Jialong Zhang
  • Patent number: 11808842
    Abstract: A data generation device is provided with environment setting means (200), model setting means (210), image calculation means (220) and data output means (230). The environment setting means sets a radar parameter that indicates a specification of a radar that is a synthetic aperture radar or an inverse synthetic aperture radar. The model setting means sets a three-dimensional model that indicates a shape of a target object to identify. The image calculation means calculates a simulation image based on the three-dimensional model and the radar parameter. The data output means outputs training data in that the simulation image and a type of the target object are associated to each other. In addition, the data output means outputs difference data that indicate a difference between a radar image and the simulation image. The model setting means changes the three-dimensional model based on model correction data inputted based on the difference data.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: November 7, 2023
    Inventors: Hiroshi Kawato, Yuto Kurishita
  • Patent number: 11762081
    Abstract: A localization method for locating a target that is coupled with a locator transponder associated with a permanent identification code permanently assigned to the locator transponder is provided.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: September 19, 2023
    Assignee: Thales Alenia Space Italia S.p.A. Con Unico Socio
    Inventors: Domenico Giancristofaro, Gianluca Chiarelli
  • Patent number: 11754675
    Abstract: Various examples are provided related to penetrating radar based upon precursors. In one example, a method includes transmitting a radio frequency (RF) signal; and receiving a return signal associated with the RF signal, where the return signal is a precursor having no exponential decay. The precursor can be one of a sequence of precursors, which can be used to improve resolution of the system. The RF signal can be a short pulse generated by an RF front end, without automatic level control. The return signal can be processed without filtering.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: September 12, 2023
    Inventors: Timothy Edward Olson, Scott Keith Lindsey
  • Patent number: 11747514
    Abstract: An apparatus configured to scan radar and radiometer combination used to image 3D atmospheric pressure from high altitudes or space. The apparatus includes a microwave sensor configured to operate at a V-band between a range of 51 and 71 GHz, producing high fidelity retrievals of one or more pressure and temperature profiles. The sensor includes a broadband transmitter and one or more receivers with three or more transmitted and received radar frequencies. The three or more transmitted and received frequencies are used to provide an estimate of atmospheric oxygen absorption in atmosphere. The sensor is further configured to provide vertical pressure profiles by combining three radar frequency data from the three or more transmitted and received radar frequencies with vertical temperature information.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: September 5, 2023
    Assignee: United States of America as represented by the Administrator of NASA
    Inventors: Matthew McLinden, Gerald Heymsfield, Lihua Li, Joel Susskind
  • Patent number: 11719800
    Abstract: A method (e.g., a method for measuring a separation distance to a target object) includes transmitting an electromagnetic first transmitted signal from a transmitting antenna toward a target object that is a separated from the transmitting antenna by a separation distance. The first transmitted signal includes a first transmit pattern representative of a first sequence of digital bits. The method also includes receiving a first echo of the first transmitted signal that is reflected off the target object, converting the first echo into a first digitized echo signal, and comparing a first receive pattern representative of a second sequence of digital bits to the first digitized echo signal to determine a time of flight of the first transmitted signal and the echo.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: August 8, 2023
    Assignee: TransRobotics, Inc.
    Inventor: Sayf Al-Alusi
  • Patent number: 11714182
    Abstract: A component-based system and method for rapidly generating artificial intelligence-enhanced real-time, multi-dimensional gridded aerial object classification and trajectory (state and orbital state vector) forecasts utilizing digital radar signals data collected at high rates of volume and velocity. The system performs data storage, retrieval, manipulation, communication, processing, and end user application tasks for accurate aerial object classification and vector forecasts. The data component serves as a data cache to store, retrieve, and manipulate data utilizing a plurality of functions under conditions of variable internet connectivity. The processing component includes an artificial intelligence machine learning component and logic for manipulating the data to generate gridded projections that are arrayed spatially and temporally.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: August 1, 2023
    Inventors: James L. Regens, Quint D. Avenetti