Including A Satellite Patents (Class 342/352)
  • Patent number: 11362732
    Abstract: The present invention relates to satellite systems and more particularly, to the provision of a satellite system and method for communications applications, with global coverage. An optimal method of providing global broadband connectivity has been discovered which uses two different LEO constellations with inter-satellite links among the satellites in each constellation, and inter-satellite links between the constellations. The first constellation is deployed in a polar LEO orbit with a preferred inclination of 99.5 degrees and a preferred altitude of 1000 km. The second constellation is deployed in an inclined LEO orbit with a preferred inclination of 37.4 degrees and a preferred altitude of 1250 km.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: June 14, 2022
    Assignee: TELESAT TECHNOLOGY CORPORATION
    Inventor: David Wendling
  • Patent number: 11346955
    Abstract: The satellite system for navigation and/or geodesy according to the invention is provided with a plurality of MEO satellites, each comprising a dedicated clock, which are arranged in a distributed manner on orbital planes and orbit the Earth, wherein a plurality of MEO satellites, particularly eight, are located in each orbital plane. The satellite system according to the invention is further provided with a plurality of LEO satellites and/or a plurality of ground stations. Each MEO satellite comprises two optical terminals for bidirectional transmission of optical free-beam signals by use of lasers with the respectively first and/or second MEO satellite orbiting ahead in the same orbital plane and with the first and/or second MEO satellite orbiting behind. By use of the optical free-beam signals, the clocks of the MEO satellites are synchronized with each other for each orbital plane at an orbital plane time applicable to this orbital plane.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: May 31, 2022
    Assignee: Deutsches Zentrum Für Luft—Und Raumfahrt E.V.
    Inventors: Christoph Günther, Johann Furthner
  • Patent number: 11320402
    Abstract: The present invention relates to method for ultrasonic inspection of a test object, comprising the steps of defining a coordinate system of the test object; selecting, relative to the coordinate system of the test object, at least two positions of a test area; positioning a respective ultrasonic measuring device at the at least two positions within the test area; transmitting, an ultrasonic wave pattern into the test object; receiving an ultrasonic wave pattern signal; acquiring an ultrasonic reference wave pattern signal for a reference area of a reference object, and comparing the received ultrasonic wave pattern signal from the test object with the acquired ultrasonic reference wave pattern signal of the reference object for detecting a defect in the test object.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: May 3, 2022
    Assignee: CAR-O-LINER GROUP AB
    Inventors: Mats Appelquist, Henrik Ottosson, Lars-Erik Philipsson
  • Patent number: 11313942
    Abstract: Disclosed is a method of identifying location information of a signal source, the method including: identifying, at a first position, first position information and first posture information of an UAV equipped with a linear array antenna; identifying, after identifying a first measured azimuth between the signal source and the antenna at the first position, a first corrected azimuth; identifying, at at least one second position, at least one piece of second position information and at least one of second posture information of the UAV; identifying, after identifying at least one second measured azimuth between the signal source and the antenna at the at least one second position, at least one second corrected azimuth; and estimating the location information of the signal source by using the first position information, the first posture information, the first corrected azimuth, the second position information, the second posture information, and the second corrected azimuth.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: April 26, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventor: Kwang Jae Lim
  • Patent number: 11289801
    Abstract: A wireless access point device includes a main frame, a transmission assembly, an antenna module and a fixing assembly. The main frame includes a casing and a first connection portion connected to the casing. The transmission assembly is disposed in an internal space of the casing and provided with a signal transceiving element. The antenna module includes a waveguide, a second connection portion and a positioning recess. The second connection portion is disposed on the waveguide and detachably connected to the first connection portion to be coupled to the signal transceiving element. The positioning recess is formed on the second connection portion. The fixing assembly is movably disposed on the first connection portion. The antenna module is thereby fixed on the casing, when the second connection portion and the first connection portion are fixed through the fixing assembly removably inserting into the positioning recess.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: March 29, 2022
    Assignee: Accion Technology Corporation
    Inventor: Chih-Chang Hsieh
  • Patent number: 11277419
    Abstract: A method and system for analysis of a facility may include providing an emulation host system, generating a pristine circuit model on the emulation host system, inserting a first hardware trojan model, emulating operation of the golden circuit model, and emulating operation of the first hardware trojan model, and determine a set of machine-learning models, detecting the presence of an unknown trojan as a function of the set of machine learning models and using the same to authenticate the integrity of a GPS signal.
    Type: Grant
    Filed: December 27, 2020
    Date of Patent: March 15, 2022
    Inventors: Alfred Larry Crouch, Peter Lawrence Levin, John David Akin, Adam Wade Ley, Matthew McKinnon Ritonia, Wesley Layton Ellington, Maria Anne Spasojevic
  • Patent number: 11262458
    Abstract: Various embodiments of the present technology generally relate to Global Navigation Satellite Systems (GNSS). More specifically, the embodiments of the present technology relate to a smart antenna module resistant to Radio Frequency Interference (RFI) saturation for dual-frequency GNSS receivers. In some embodiments, a dynamically configured antenna module architecture can be for a dual-band (or multi-frequency) GNSS receiver that can adapt to different RFI conditions by performing corresponding working modes. For example, some embodiments of the smart antenna can measure (e.g., using a power detector) the power of an incoming multi-frequency signal to determine when the multifrequency signal is saturated. Then, using control logic the smart antenna can determine which frequency in the multi-frequency signal is usable and isolate (e.g. using radio frequency components) a frequency that is not saturated. A position estimate can then be generated based on the isolated multi-frequency signal.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: March 1, 2022
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Dennis M. Akos, Nagaraj Channarayapatna Shivaramaiah, Yafeng Li
  • Patent number: 11244265
    Abstract: A maintenance operation support device includes a procedure information outputter configured to output procedure information representing an operation procedure of maintenance operations for a facility, the procedure information being obtained by combining action definition information for defining actions of a setting tool that adjusts or sets the facility and operation definition information for defining operations to be instructed to a maintenance operator who performs the maintenance operations for the facility.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: February 8, 2022
    Assignee: Yokogawa Electric Corporation
    Inventors: Yusuke Yokota, Ryouhei Furihata
  • Patent number: 11237273
    Abstract: Disclosed herein are system, method, and computer program product embodiments for detecting spoofing of a navigation device. A plurality of anti-spoofing techniques are provided. The plurality of anti-spoofing techniques detect interference with data provided by one or more navigation devices for a plurality of threat situations. Positioning, timing and frequency characteristics associated with the one or more navigation devices are analyzed in order to identify a threat situation among the plurality of threat situations. Based on the identified threat situation one or more of the anti-spoofing techniques are executed. The one or more anti-spoofing techniques can be executed in parallel in order to provide various anti-spoofing detection techniques at the same time.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: February 1, 2022
    Assignee: THE MITRE CORPORATION
    Inventors: Darrow Paine Leibner, Erik T. Lundberg
  • Patent number: 11226650
    Abstract: A system for managing a time reference includes a real-time clock, an interface, and a processor. The real-time clock store an RTC time. The interface is configured to receive a GPS time and a cellular time. The processor is configured to: indicate to start a time-speed adjustment loop; determine a true time based at least in part on the GPS time and the cellular time; determine an error between the true time and the RTC time; determine an RTC speed calibration adjustment based at least in part on the error; and adjust the real-time clock speed based at least in part on the RTC speed calibration adjustment.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: January 18, 2022
    Assignee: Lytx, Inc.
    Inventor: Bernd Egler
  • Patent number: 11223126
    Abstract: An apparatus includes a cross-link phased array and a communication-link phased array. The cross-link phased array and the communication-link phased array are integrated into a single array. The cross-link phased array and communication-link phased array comprise a multi-beam phased array. The cross-link phased array provides communication between multiple space vehicles and the communication-link phased array provides communication between the satellite and the ground GPS system.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: January 11, 2022
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventor: Erik Lier
  • Patent number: 11201630
    Abstract: Examples disclosed herein relate to an antenna system. The antenna system has a transceiver unit adapted to receive a composite communication signal, wherein the composite communication signal is a mix of multiple individual communication signals transmitted at different frequencies, a radiating structure comprising multiple subarrays of radiating elements, each subarray responsive to a different frequency, and an antenna controller adapted to map each communication signal to a user equipment and adjust an electrical parameter of the radiating elements within each subarray so as to direct each individual communication signal in the composite communication signal to a corresponding user equipment.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: December 14, 2021
    Assignee: Metawave Corporation
    Inventor: Maha Achour
  • Patent number: 11194054
    Abstract: A system of architecture, apparatus and calibration method is invented for high-power flexible-polarization payload for satellite communications. The system comprises onboard phase-tracked apparatus, flexible polarization mechanism, and in-orbit calibration method. The power combining and polarization performance of the phase-tracked payload is monitored on ground by measuring the cross-polarization discrimination (XPD) and/or axial ratio (AR). The high performance over the life is achieved by optimization of the XPD or AR on ground and adjusting complex gain of the transponders. The high-power flexible-polarization in-orbit-calibration payload may be applied but not limited to UHF, L, S, C, X, Ku and Ka-band high power satellite systems.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: December 7, 2021
    Assignee: MACDONALD, DETTWILER AND ASSOCIATES CORPORATION
    Inventors: Haiqing Wu, Jean-François Blain, Claude Gingras, Michel Tremblay
  • Patent number: 11190150
    Abstract: Methods and systems for amplifying signals are provided. Embodiments include a three-to-one multiplexer, a multiband RF variable gain amplifier (VGA), a multiband power amplifier driver (PAD), and a one-to three multiplexer. The three-to-one multiplexer receives three input signals from an RF frequency source and outputs an output signal corresponding one input signal. The multiband RF VGA receives the output signal of the three-to-one multiplexer, provides a first level of amplification to the signal received from the three-to-one multiplexer, and outputs an amplified version of the signal. The multiband PAD receives the signal output by the multiband RF variable gain amplifier and provides a second level of amplification to the signal and outputs an amplified version of the signal. The one-to-three multiplexer receives a signal output by the multiband PAD produces three output signals that correspond to each of the three input signals.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: November 30, 2021
    Assignee: HUWOMOBILITY, INC.
    Inventor: Lin Zhou
  • Patent number: 11190247
    Abstract: A system and method are described for distributed antenna wireless communications.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: November 30, 2021
    Assignee: REARDEN, LLC
    Inventors: Antonio Forenza, Stephen G. Perlman
  • Patent number: 11165132
    Abstract: A heat dissipation system for an antenna assembly for a vehicle is disclosed that provides enhanced heat removal attributes and that provides heat transfer from various components to a heat sink through different heat transfer flow paths to reduce the transfer of heat from high heat producing components to heat sensitive components. Improved heat insulation components can be added to maximize the thermal isolation between heat producing components and to prevent heat transferred from the vehicle into the antenna assembly.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: November 2, 2021
    Assignee: Airgain, Inc.
    Inventors: Larry Greenstein, Joe L. Romack
  • Patent number: 11101873
    Abstract: Provided is a control device for controlling flight vehicles, including a replacement control unit for controlling replacement of a first flight vehicle covering a target area on the ground by a cell in a first frequency band with a second flight vehicle, in which the replacement control unit is for controlling the replacement such that, after the second flight vehicle moves to a location corresponding to a location of the first flight vehicle, the first flight vehicle continues using one part of a frequency band in the first frequency band and stops using a remaining part of the frequency band, and also the second flight vehicle forms a cell in a frequency band excluding the one part of the frequency band but including the remaining part of the frequency band, which overlaps with the cell formed by the first flight vehicle, and the first flight vehicle stops forming the cell.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: August 24, 2021
    Assignee: HAPSMobile Inc.
    Inventor: Jutatsu Sai
  • Patent number: 11101877
    Abstract: Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: August 24, 2021
    Assignee: ViaSat, Inc.
    Inventors: Kenneth V. Buer, Mark J. Miller, Christopher J. Cronin, Mark D. Dankberg, Donald L. Runyon
  • Patent number: 11099254
    Abstract: An anti-collision radar device includes a radar mount for fixation to an outer peripheral side of a powerless trailer carriage, and a radar mounted in the radar mount for sensing vehicles coming from left and right sides. The radar mount defines a reference surface. The radar has a sensing surface. The extending direction of the sensing surface is intersected with the extending direction of the reference surface so that a predetermined angle of 30° to 50° is defined therebetween. Thus, the anti-collision radar device can expand the radar sensing range and reduce the visual field blind spot of the driver of the car, thereby ensuring the safety of the car when towing the powerless trailer carriage.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: August 24, 2021
    Assignee: Cub Elecparts Inc.
    Inventors: San-Chuan Yu, Cheng-Hsin Li, Wei-Chang Liang
  • Patent number: 11101915
    Abstract: The subject method for delivering power to a moving target wirelessly via electromagnetic time reversal can find applications in wireless electrical transmission to portable devices, wireless heating of portable devices, novel wirelessly powered accelerometers, hyperthermic treatment of cancers, and many other applications. The subject non-linear time reversed electromagnetic waves based wireless power transmission (WPT) system targets either a single linear or non-linear object where a selective targeting between two diodes has been demonstrated simultaneously with different degrees of non-linearity in a three-dimensional ray-chaotic billiard model. A dual-purpose rectenna with harmonic generation for wireless power transfer by non-linear time-reversal has been designed for the subject system using the Schottky diode.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: August 24, 2021
    Assignee: University of Maryland, College Park
    Inventors: Steven Mark Anlage, Frank Cangialosi, Tyler Grover, Andrew Simon, Scott Roman, Liangcheng Tao
  • Patent number: 11095047
    Abstract: A multiple wideband antenna or broadband antenna includes using the concepts of cellular clusters integrated into a dual polarity antenna panel. These panels integrate a free space optic capability to transmit and receive high-bandwidth communications and provide an option for improved communication transport of information from the base of the tower to the antenna minimizing the number of cables required to support the antenna. This antenna's also will integrate the capability to provide command and control using the cellular guard bands created between each cellular block to support Unmanned Aerial Systems or free space optics connection. This antenna will provide several methods of employment, including military operations, commercial cellular operations, unmanned systems communication requirements, the Internet of Things, and the future of autonomous vehicles or robotics.
    Type: Grant
    Filed: April 29, 2017
    Date of Patent: August 17, 2021
    Inventor: Arthur Ray DeLeon
  • Patent number: 11075702
    Abstract: Empirically modulated antenna systems and related methods are disclosed herein. An empirically modulated antenna system includes an antenna and a controller programmed to control the antenna. The antenna includes a plurality of discrete scattering elements arranged in a one- or two-dimensional arrangement. A method includes modulating operational states of at least a portion of a plurality of discrete scattering elements of the antenna in a plurality of different modulation patterns. The plurality of different modulation patterns includes different permutations of the discrete scattering elements operating in different operational states. The method also includes evaluating a performance parameter of the antenna responsive to the plurality of different empirical one- or two-dimensional modulation patterns. The method further includes operating the antenna in one of the plurality of different one- or two-dimensional empirical modulation patterns selected based, at least in part, on the performance parameter.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: July 27, 2021
    Assignee: The Invention Science Fund I LLC
    Inventors: Eric J. Black, Brian Mark Deutsch, Alexander Remley Katko, Melroy Machado, Jay Howard McCandless, Yaroslav A. Urzhumov
  • Patent number: 11054525
    Abstract: Several examples of a navigation disruption device and methods of using the same are described herein that use real-time, low-cost computation to generate conflicting/competing signals to actual Global Navigation Satellite System (GNSS) signals. For example, the novel, hand-held navigation disruption devices described herein (1) generate signals from a simulated satellite constellation, wherein the signals from the simulated satellite constellation conflict/compete with signals from one or more actual satellite constellations, and (2) transmit the signals from the simulated satellite constellation(s) towards an unmanned vehicle. The signals from the simulated satellite constellation(s) cause the unmanned vehicle to compute an incorrect position, which in turn disrupts its ability to navigate and operate effectively.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: July 6, 2021
    Assignee: Flex Force Enterprises Inc.
    Inventors: Cynthia Louise Archer, Jacob Ryan Sullivan
  • Patent number: 11041377
    Abstract: Implementations are directed to remote data aggregation, data management, and data visualization of field data from remote field site locations. Actions can include generating, by one or more sensors, the field data, each sensor of the one or more sensors being responsive to field site activity, transmitting, through a regional network, the field data to a back-end system, processing, by the back-end system, the field data to provide visualization data, transmitting the visualization data to one or more mobile computing devices, and providing a computer-executable application for execution on a mobile computing device, the computer-executable application processing the visualization data to provide data visualizations.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: June 22, 2021
    Assignee: WellAware Holdings, Inc.
    Inventors: Matthew Harrison, William Cameron Powell, Stephen Trey Moore
  • Patent number: 11029412
    Abstract: Approaches for efficient broadcast of satellite ephemeris information or data in NGSO satellite systems, based on Keplerian parametric models of the satellite orbits, are provided. Keplerian orbit parameters are utilized (e.g., parametric orbit models) for improved efficiency in broadcast of ephemeris data over use of point-wise vectors. The linear change and harmonic variations in Keplerian orbit parameters are accounted for, for example, based on the specification of the linear and harmonic terms, increasing accuracy and extending duration of validity of the orbit parameters. Data compression is employed by (i) differential encoding of orbital parameters, and (ii) exploiting the correlation between the harmonic (Fourier) coefficients model of the orbit parameters.
    Type: Grant
    Filed: September 9, 2017
    Date of Patent: June 8, 2021
    Assignee: Hughes Network Systems, LLC
    Inventors: Channasandra Ravishankar, John Corrigan, Deepak Arur, Yash Vasavada
  • Patent number: 11018757
    Abstract: Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: May 25, 2021
    Assignee: ViaSat, Inc.
    Inventors: Kenneth V. Buer, Mark J. Miller
  • Patent number: 11009609
    Abstract: Certain implementations of the disclosed technology may include systems and methods for reducing noise in dual-frequency GNSS signal observation. The method can include: receiving, at a GNSS receiver, a first signal and a second signal. At least the second signal includes noise. The first signal is characterized by a first carrier frequency, and the second signal is characterized by a second carrier frequency. The method includes: down converting, sampling, cross-correlating, accumulating, determining ambiguous instantaneous phases, determining non-ambiguous instantaneous phases, producing normalized non-ambiguous instantaneous first phase samples, constructing a normalized first counter rotation phasor, generating a counter-rotated second observable, applying a low pass filter to remove noise; and outputting the filtered second observable.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: May 18, 2021
    Assignee: SPIRE GLOBAL, INC.
    Inventor: Oleguer Nogues-Correig
  • Patent number: 11005561
    Abstract: This system and method provides for a plurality of satellite ground stations, distributed across some geographic region, and for these regions in turn to be scalable to cover large regions, including across the Earth or in orbit with planets or other celestial bodies using a combination of low-orbit satellites, terrestrial participant devices, and cloud-based communications. The invention in its simplest form is intended to solve the short temporal window problem inherent to the scenario where a single base or ground station is trying to track and communicate with a low-end OSAT or even a cube-satellite.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: May 11, 2021
    Assignee: University of Louisiana at Lafayette
    Inventor: Paul J. Darby, III
  • Patent number: 10998617
    Abstract: Methods and systems are disclosed for user recognition and express for an automobile. For one example, a data processing system for an automobile includes a database, a user capture device, and a computer. The database stores at least an image of a user of the automobile. The user capture device captures at least an image of the user. The computer is coupled to the database and the user capture device. The computer allows the user access to the automobile if the user is authenticated as a valid user by determining if stored image of the user match the captured image of the user. The facial features can include two-dimensional (2D) or three-dimensional (3D) images including facial features. The computer allows the user access to the automobile and controls of the automobile if the user is authenticated as a valid user. The computer can also deny the user access to the automobile and controls of the automobile if the user is not authenticated as a valid user.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: May 4, 2021
    Inventors: Abraham Tai-Yu Chen, Trampus Richmond, William Christopher Adler
  • Patent number: 10986636
    Abstract: A wireless communication system includes frequency reuse between terminals in common coverage regions using a multiple satellite architecture with spatial diversity. Different terminals may be associated with different ones of the satellites such that a common frequency can be reused by the different terminals. A gateway may communicate with a first satellite using a feeder beam having an overlapping geographic coverage region with a user beam used for communication between a set of user terminals and a second satellite. Spatial diversity is provided between the satellites, and the feeder beam and the user beam operate at common frequencies within the overlapping coverage region. In this manner, the bandwidth of both satellites at the common coverage region is used to increase the available capacity.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: April 20, 2021
    Assignee: Maxar Space LLC
    Inventor: Kirby Chung
  • Patent number: 10979912
    Abstract: A vehicle includes: an antenna; a polarization adjuster configured to change a first polarized wave emitted through the antenna; and a controller configured to receive a wireless signal from a portable user device through the antenna, to identify a second polarized wave emitted from the portable user device based on the wireless signal, and to control the polarization adjuster such that the first polarized wave matches the second polarized wave.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: April 13, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Dongjin Kim
  • Patent number: 10966195
    Abstract: Example communication stations and methods for transmitting on a random access channel (RACH) in wireless networks are disclosed herein. An example method for transmitting on an enhanced RACH by a device such that an initial access burst is received in a single time slot by a wireless network involves determining a timing advance, the timing advance being associated with a serving cell. The example method also involves transmitting, using the determined timing advance, the initial access burst, on the enhanced RACH, that includes at least one of an identifier or user data.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: March 30, 2021
    Assignee: BlackBerry Limited
    Inventors: David Philip Hole, Rene Faurie, Satish Venkob, Steven Michael Hanov, Remo Borsella, Werner Kreuzer
  • Patent number: 10954003
    Abstract: A configuration for a satellite constellation has a plurality of planes, each plane including a plurality of satellites therein, at least some of the planes situated at a different altitude than other of the planes. In some embodiments, all planes contain the same number of satellites; in some other embodiments, at least one plane includes a different number of satellites than the other planes in the constellation. In some embodiments, the satellites in each plane are evenly spaced.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: March 23, 2021
    Assignee: WORLDVU SATELLITES LIMITED
    Inventor: Matthew Cameron Meek
  • Patent number: 10935672
    Abstract: A device of piloting sensors for a rotary wing aircraft having at least two IMU inertial modules, at least two GNSS receivers having respective first fault detection and exclusion modules for detecting and excluding failures and covering distinct GNSS satellite navigation systems, at least two second FDE modules, at least two hybridizing platforms, and at least one third FDE module. The FDE modules enable signals that are of integrity and/or signals that are erroneous to be detected so as to exclude each GNSS system that is defective. In addition, each hybridizing platform makes it possible to determine a hybridized ground speed in order to delivering a ground speed for said aircraft that is accurate and of integrity.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: March 2, 2021
    Assignee: Airbus Helicopters
    Inventor: Jean Paul Petillon
  • Patent number: 10931325
    Abstract: An antenna assembly comprising a base, a modem, a top lid and a housing is disclosed herein. The base is composed of an aluminum material. The modem is disposed on the base. The top lid is for the base, and the top lid comprises at least one antenna element disposed on an exterior surface. The housing covers the top lid and base. The top lid acts as an electro-magnetic barrier for the modem. A communication cable is connected to the modem at one end and extending to and connected to a vehicle internal router with a vehicle modem at the other end.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: February 23, 2021
    Assignee: Airgain, Inc.
    Inventors: Kevin Thill, Callum Noon, Larry Greenstein
  • Patent number: 10903974
    Abstract: Systems and methods for maintaining synchronization of repeater networks with Global Positioning System (GPS) signals using phase locked loops (PLLs) and based on generation of predicted control words for controlling local oscillator frequencies is described. The predicted control words can be generated based on performing a linear fit of control words generated over a predetermined duration of time. Phase locked loops with additional false GPS pulse identification and GPS signal loss compensation circuitry can enforce a false pulse count threshold and/or an error threshold. The additional circuitry and prediction of control words can overcome errors in GPS receiver outputs and maintain accuracy of signal timings across single frequency networks using inexpensive local oscillators.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: January 26, 2021
    Assignee: Sirius XM Radio Inc.
    Inventors: Carl Scarpa, Edward Schell
  • Patent number: 10890644
    Abstract: At a receiver in a short-range wireless system having a plurality of channels and a plurality of receiving antennas, an angle-of-arrival of a signal is determined by receiving, at at least two antennas, the signal on one of the channels, determining a phase difference between the signal as received at those antennas, removing a local oscillator phase from the phase difference to provide an adjusted phase difference, and determining, from the adjusted phase difference, the angle-of-arrival. Removing the local oscillator phase includes estimating a local oscillator phase for each channel to be used for all antennas, or determining an angle using multi-channel combining, and for each channel, using that angle to determine a channel local oscillator phase, or, for a given channel, identifying, as the local oscillator phase, a phase that minimizes the sum, over all antennas, of squares of phase differences between the given channel and a neighboring channel.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: January 12, 2021
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Christian R. Berger, Niranjan Grandhe, Sudhir Srinivasa
  • Patent number: 10852443
    Abstract: An apparatus for matching probe measurements to a path in a geographic location includes a receiver, a window manager, a location generator, a path calculator, and an output. The receiver is configured to receive a stream of probe measurements. The window manager is configured to fill a window with the measurements, to select an additional measurement from the stream, and to select an oldest measurement in the window. The location generator is configured to generate candidate locations for the measurements in the window and the additional measurement. The path calculator is configured to match the oldest measurement to a candidate location. The output is configured to output a path-matched probe measurement based on the oldest measurement and the candidate location matched to the oldest measurement.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: December 1, 2020
    Assignee: HERE Global B.V.
    Inventors: James Fowe, Bruce Bernhardt, Filippo Pellolio
  • Patent number: 10848199
    Abstract: Systems for communicating data through a satellite are disclosed. The systems generally include a terrestrial radio, such as a chirp spread spectrum modulator. The terrestrial radio is configured to uplink data to one or more satellites. The one or more satellites are configured to receive the data from the terrestrial radio. In addition, the systems include terrestrial receivers, such as one or more chirp spread spectrum receivers, positioned at ground level, which are configured to receive the data from the one or more satellites.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: November 24, 2020
    Inventor: Syed Karim
  • Patent number: 10838071
    Abstract: Satellite navigation receivers are provided herein. In certain embodiments, a satellite navigation receiver correlates a received RF navigational signal from a satellite with a replica code generated by the receiver. Additionally, errors due to multipath are mitigated by identifying the location of the peak values of the correlation function obtained when the replica code is aligned with the received RF navigational signal. Thus, the peak correlation value is detected by sweeping the user replica code in delay in place of a closed loop early/late discriminator. Moreover, multiple copies of the receiver generated replica codes with different time offsets can be used to perform the acquisition in parallel. This advantageously reduces the amount of acquisition time to align the replica code and provides averaging to improve the accuracy in detecting the delay location of the peak correlation value.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 17, 2020
    Assignee: The Aerospace Corporation
    Inventor: Robert B. Dybdal
  • Patent number: 10816937
    Abstract: A patient support apparatus includes a frame, patient support surface, clock, transceiver, and controller. The transceiver communicates with a headwall and/or a local area network. The controller detects the occurrence of an event and sends a message to a server in communication with the local area network in response to the event. The controller updates its estimate of the local time based upon time data received from the server. The controller may also and/or additionally receive first and second time updates from two different sources. When received, the controller updates its estimate of local time based upon at least one of the following: (a) a comparison of its estimate of local time with the time data from the first source; and (b) a comparison of its estimate of local time with the time data received from the second source.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: October 27, 2020
    Assignee: Stryker Corporation
    Inventors: Anuj K. Sidhu, Michael Joseph Hayes
  • Patent number: 10820160
    Abstract: A system and method for HF positioning characterizes the undulations of the ionosphere in real-time to determine the refraction altitude of a specific HF frequency at a specific time of day at a specific position. The system accounts for the seasonal (summer, winter) and daily (daylight, night, grey-line transition) variations of the ionosphere determining a highly accurate timing error relative to a timing reference. The system employs a novel approach that is capable of passively and accurately determining a position anywhere in the world without use of a GNSS signal receiving known-time transmissions of narrow band HF timing signals refracted via ionospheric skywave.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: October 27, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Timothy E. Snodgrass, John V. Thommana
  • Patent number: 10811784
    Abstract: An antenna and method for using the same are disclosed. In one embodiment, an antenna comprises a radial waveguide; an aperture operable to radiate radio frequency (RF) signals in response to an RF feed wave fed by the radial waveguide; and a radio frequency (RF) choke operable to block RF energy from exiting through a gap between outer portions of the waveguide and the aperture.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: October 20, 2020
    Assignee: KYMETA CORPORATION
    Inventors: Benjamin Sikes, Mohsen Sazegar, Robert Morey, Matthew Riley
  • Patent number: 10812179
    Abstract: Systems and methods are described herein for performing mispointing correction operations that can provide accurate pointing of an antenna towards a satellite, while also satisfying interference requirements with other satellites. As a result, the mispointing correction operations described herein can improve resource efficiency of communication systems using such antennas and help ensure compliance with interference requirements of other satellites.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: October 20, 2020
    Assignee: Viasat, Inc.
    Inventors: James E. Petranovich, Bradley H. Smith, Eric L. Cross, Douglas J. Merrell, Samuel C. Finney
  • Patent number: 10809384
    Abstract: In one embodiment, the present invention includes a method of receiving and decoding military L2 or L1 P(Y) or M-Code signals and re-transmitting these in real-time as legacy L1-C/A signals. The decoding process of the P(Y) or M-code is done through the programming by the user of secret keys into an embodiment of this invention. These military code signals are then decoded into standard PVT/PNT information which are typically transmitted on an industry standard serial port and format, which are then re-encoded using a real-time GPS simulator sub-system as legacy L1-C/A code signals, and transmitted to the output of the embodiment of this invention as a standard antenna signal. This output signal could be made compatible with any commercial L1-C/A code GPS receiver, and may thus be decoded by the GPS receiver as if the signals had been received directly from the Satellites.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: October 20, 2020
    Assignee: JACKSON LABS TECHNOLOGIES, INC.
    Inventors: Gregor Said Jackson, Giovanni D'andrea
  • Patent number: 10804614
    Abstract: A lightweight and portable space frame antenna includes a first plurality of reflector panels and a second plurality of reflector panels each being sized and configured such that each one of said first plurality of reflector panels can be nested inside a corresponding one of said second plurality of reflector panels, thereby defining a nested pairing; a plurality of helical cam latching devices for joining together each of the first and second pluralities of reflector panels; a reflector hub consisting of two pieces, wherein the first and second pluralities of reflector panels are mounted on the reflector hub to form a parabolic reflector; a foldable positioner for supporting the parabolic reflector; a telescoping actuator that is structured and disposed for providing elevation adjustment and may be selectively disconnected from the parabolic reflector; and an elevation-azimuth bar that is structured and disposed for providing azimuth adjustment through a bearing-free azimuth rotation.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: October 13, 2020
    Assignee: AvL Technologies, Inc.
    Inventors: Mike Wilde, Alan Eugene Ellis
  • Patent number: 10788590
    Abstract: Various technologies pertaining to integrating a positioning or timing solution from an alternative position, navigation, or timing (PNT) system into a satellite-based-navigation system are described herein. The PNT system generates a position/timing (P/T) solution that indicates a current position or current time of the PNT system. The P/T solution is provided as input to a simulation of a satellite constellation of the satellite-based-navigation system, and a constellation signal is generated based on the simulation and the P/T solution. The constellation signal is formatted according to a navigation signal format of the satellite-based-navigation system such that when the constellation signal is provided to a receiver of the satellite-based-navigation system, the receiver computes a P/T solution that indicates the current position or the current time identified by the PNT system.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: September 29, 2020
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Jason A. Payne, John J. Mason, Albert Hummel
  • Patent number: 10775511
    Abstract: A Global Navigation Satellite System (GNSS) receiver includes a wideband signal correlator and a multipath mitigator. The wideband signal correlator generates wideband correlation signals of at least one of a plurality of GNSS signals with respect to corresponding locally generated code replica signals in which a bandwidth of the wideband signal correlation module is at least about 20 MHz. The multipath mitigator determines a Line of Sight (LOS) signal from the wideband correlation signals. The GNNS receiver may include a narrowband signal correlator to generate narrowband correlation signals of the at least one GNSS signal with respect to corresponding locally generated code replica signals in which a bandwidth of the narrowband signal correlation module is less than about 6 MHz. The multipath mitigator further corrects a range and range-rate measurement generated from the narrowband correlation signals based on a code phase and a carrier estimated based on the LOS signal.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: September 15, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Gary Lennen
  • Patent number: 10757677
    Abstract: A non-transitory computer-readable recording medium having stored therein a base station determination program for causing a computer to execute a process includes: acquiring position information on a communication terminal; assigning, based on position information on each of a plurality of base stations stored in advance in a storage and the acquired position information on the communication terminal, one or more base stations other than a base station that includes a point at which a radio wave characteristic based on longitude information changes in a time slot during which communication is to be performed, and which is provided between a position of the base station and a position of the communication terminal, as one or more base station candidates from among the plurality of base stations; and determining a base station that is to communicate with the communication terminal from among the one or more base station candidates.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: August 25, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Taki Kono, Akira Kato, Kosei Takano, Machiko Kawamura, Yukio Sato, Kanami Hitsuda, Teruaki Nakayama, Hiroki Nikai
  • Patent number: 10754043
    Abstract: A receiver and a receiving method for receiving wideband binary-offset-carrier modulated signals. The receiver includes a tracking apparatus which includes an upper sideband processor operable to generate upper sideband correlations through correlating a local upper sideband replica against a received navigation signal, a lower sideband processor operable to generate lower sideband correlations through correlating a local lower sideband replica against the received navigation signal, and an estimator operable to determine a delay estimate based on the upper sideband correlations and the lower sideband correlations.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: August 25, 2020
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Yonghui Zhu, Xiaowei Cui, Mingquan Lu