Patents Examined by Harry K. Liu
  • Patent number: 11073595
    Abstract: Two or more objects, or an object and an environment are each fitted with two or more range measurement devices. Each of the range measurement devices is provided with a transceiver capable of outputting a unique code and information that can be used in range measurement, and receiving from other range measurement devices unique codes and information that can be used in range measurement. Range measurements from range measurement devices on the object or located in the environment are used to derive the relative position of the range measurement devices, from which a relative position of the objects, or of the object and an environment can be derived.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: July 27, 2021
    Assignee: Tactual Labs Co.
    Inventor: Darren Leigh
  • Patent number: 11073620
    Abstract: A method for computing and applying alternative uncertainty limits is provided. The method includes generating a main solution from a plurality of received measurement signals. A solution separation is applied using a filter bank to generate sub-solutions from the received plurality of measurement signals. Each sub-solution uses all of the measurement signals from the plurality of measurement signals except one measurement signal to generate the associated sub-solution. Each sub-solution excludes a different measurement signal. One sub-solution is selected as fault free. A difference between the main solution and the selected sub-solution is determined. The determined difference is added to a rare normal protection limit to create a solution with improved integrity bounding. The solution with improved integrity bounding is then implemented.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: July 27, 2021
    Assignee: Honeywell International Inc.
    Inventors: James Arthur McDonald, Mark A. Ahlbrecht, Zdenek Kana
  • Patent number: 11067698
    Abstract: The present invention provides a message broadcast apparatus and method for enhanced parameters in a satellite navigation system. The apparatus includes: a processor, which determines the insertion position of the enhanced parameter in the reserved space in the navigation message frame structure model according to the byte size and the broadcast frequency of the enhanced parameter that needs to be broadcast, so as to perform the message arrangement of the enhanced parameter; and a transmitter, which uploads the arranged message to the broadcast satellite for broadcasting the message.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: July 20, 2021
    Assignees: Shanghai Astronomical Observatory, Chinese Academy of Sciences
    Inventors: Jianhua Zhou, Jinxian Zhao, Junping Chen, Xiuqiang Gong
  • Patent number: 11067697
    Abstract: Where each node device is assumed to know the time-of-day with an accuracy of only plus or minus 1 second, the geolocation of said node device is determined by an A-GNSS server by help of a time-stamp known with an accuracy better than or equal to 10 milliseconds and added by at least one transceiver of the asynchronous RF network. Indeed, the technical feature of said asynchronous RF network according to which the time-of-day at which data are sent from each node device is known in a deterministic manner allows the A-GNSS server to determine retrospectively this time-of-day in function and with the precision of the time-stamp added by said at least one transceiver to the data packet issued from said node device over the asynchronous RF network.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: July 20, 2021
    Assignee: ABEEWAY
    Inventor: Stéphane Boudaud
  • Patent number: 11067395
    Abstract: The present invention discloses a direction-finding chip, a direction-finding method and a beacon. The direction-finding chip is applied to a beacon of a direction-finding system. The beacon includes multiple antennas and an inertial measurement unit (IMU). A mobile device can calculate angle information according to supplement provided by the beacon. The direction-finding chip includes a computation circuit and a radio frequency circuit. The computation circuit generates coordinate conversion information or a correction amount of the coordinate conversion information according to an acceleration and a magnetic field vector generated by the IMU. The coordinate conversion information or the correction amount can be used to compensate the angle information. The radio frequency circuit is coupled to the computation circuit and configured to transmit the supplement and the coordinate conversion information or the correction amount.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: July 20, 2021
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Wei-Hung He, Chun-Ming Cho
  • Patent number: 11067699
    Abstract: An apparatus for use in a vehicle for receiving and processing first data while the vehicle is in a parked position, the data taking into consideration errors in a position determination for the vehicle on account of atmospheric effects. The first data are produced by at least one satellite which is designed to send the first data to the vehicle having a first communication interface. The first communication interface is designed to receive the first data from the at least one satellite. A controller is connectable to the first communication interface in order to receive first data from the first communication interface for processing. The controller is further designed to take the received first data as a basis for determining at least one parameter for the creation of an error correction model for correcting a position error in the determination of a position for the vehicle.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: July 20, 2021
    Inventor: Ulrich Stählin
  • Patent number: 11070307
    Abstract: The system and method of global positioning system (GPS) anti-jam (AJ) AJ antennas utilizing a circular array of patch antennas. In some cases the circular array is conformal. The elements are single patch, dual band (L1/L2) and are linearly polarized. A mode former and progressive phase tapers are used.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: July 20, 2021
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Gary A. Schay, Corrado Mancini
  • Patent number: 11061104
    Abstract: Provided is a method for determining positions of one or more target receivers, wherein the one or more target receivers and one or more reference receivers receive a plurality of signals transmitted at unknown times from a plurality of sources that are located at unknown positions and not synchronized with each other. The method includes: obtaining times of arrival of the plurality of signals at the one or more target receivers; obtaining a plurality of times of arrival of the plurality of signals at the one or more reference receivers; and computing, based on the plurality of times of arrival of the plurality of signals at the one or more reference receivers, a plurality of reference positions of the one or more reference receivers, and the times of arrival of the plurality of signals at the one or more target receivers. The method may include determining directions of the plurality of sources.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: July 13, 2021
    Assignee: U-BLOX AG
    Inventors: Christopher Brian Marshall, Giacomo Pojani, Fabio Ricciato, Matija Rezar, Erik {hacek over (S)}trumbelj
  • Patent number: 11061141
    Abstract: A system for generating satellite positioning corrections includes a global correction module that generates a set of global pre-corrections based on modeling of global positioning error, a set of local correction modules that, for each local correction module of the set, takes input from a unique reference source and generates a set of local pre-corrections based on modeling of local positioning error; and a correction generator that generates a positioning correction from the set of global pre-corrections and the sets of local pre-corrections to correct a position of the mobile receiver.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: July 13, 2021
    Assignee: Swift Navigation, Inc.
    Inventors: Fergus Noble, Anthony Cole
  • Patent number: 11061101
    Abstract: A radio frequency (RF) identification (RFID) reader calibration system for use with a venue includes an RFID reader having a primary identifier and a plurality of secondary identifiers. The primary identifier and each of the plurality of secondary identifiers having a respective unobstructed line of sight to a point on the floor of the venue. The RFID reader calibration system also includes a data capture device configured to be aimed at the primary identifier and the plurality of secondary identifiers and to capture respective coordinates of the primary identifier and each of the plurality of secondary identifiers. The RFID reader calibration system also includes a controller configured to determine: a location of the RFID reader based on the coordinates of the primary identifier; and an orientation of the RFID reader based on the respective coordinates of the primary identifier and each of the plurality of secondary identifiers.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: July 13, 2021
    Assignee: Zebra Technologies Corporation
    Inventors: Yuly Mitelman, Michael J. Koch, Charles Burton Swope
  • Patent number: 11054529
    Abstract: A personnel location and monitoring system enables on-scene commanders in austere environments to identify, location and manage personnel. The present invention establishes a localized network of geolocation-capable transceivers which can thereafter provide communication capabilities with specially-equipped users as they ingress and egress an austere environment. Each user is equipped with an Individual Geospatial Locational Unit which provides data via a datalink with one or more of the anchors, and ultimately with a base station. From such data and the datalink itself the location of the user as well as the user's biomedical condition can be ascertained. As confidence of the location of the user drops below a predetermined threshold and/or the biomedical condition of the user raises concern with respect to the user's well-being, the present invention modifies the communication and geolocation protocols to prioritize communication and data transfer with such a user.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: July 6, 2021
    Assignee: TABER INNOVATIONS GROUP LLC
    Inventors: Phillip P. Taber, Timothy P. Taber
  • Patent number: 11045708
    Abstract: The disclosure herein provides a golf GPS device with a sensor mechanism to automatically switch between video and audio only modes of the device. More particularly, when a player attaches the golf GPS device to a piece of clothing or hat, the device automatically switches to audio-only mode. When the player detaches the golf GPS device, the device automatically switches to video mode, with or without audio. The golf GPS device further includes one or more processors configured to repeatedly determine in which one of the plurality of holes the device is located, to repeatedly compute a distance between the device and a feature of the determined hole, and to cause to display the hole number of the determined hole and the computed distance on the display screen.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: June 29, 2021
    Assignee: GolfzonDeca, Inc.
    Inventor: Jun Ha Park
  • Patent number: 11047990
    Abstract: An antenna enclosure includes a sensor and a Global Navigation Satellite System (GNSS) antenna. Within the antenna enclosure, sensor data is combined with GNSS information to produce a RF communication signal, wherein the sensor data is out-of-band from the GNSS information. The RF communication signal is transmitted utilizing a GNSS antenna data link to a receiver side. On the receiver side, the RF communication signal is split into a GNSS RF path and a sensor RF path. The GNSS signals are transmitted to the GNSS receiver via the GNSS RF path. A sensor RF communication signal is de-modulated, and the sensor data is transmitted to the GNSS receiver. When the GNSS antenna data link is bi-directional, information may be transmitted from the GNSS receiver to the antenna enclosure via the GNSS antenna data link.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: June 29, 2021
    Assignee: NovAtel Inc.
    Inventors: Jerry Allan Freestone, Teresia Cheuk Wa Lee, Darrell James Anklovitch
  • Patent number: 11047989
    Abstract: Usability of a GNSS device with a tilt sensor is improved. A GNSS device includes a tilt sensor capable of measuring a tilt, an electronic compass capable of measuring a direction, a GNSS antenna capable of acquiring positional information, and a display unit capable of displaying information, wherein when the tilt sensor or the electronic compass requests calibration for adjustment, an icon calling attention is displayed on a screen of the display unit, and when the icon is tapped by a user, the screen of the display unit shifts to a calibration screen. When calibration is required, immediate shifting to a calibration screen is enabled, so that high operability and usability are obtained.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: June 29, 2021
    Assignee: TOPCON CORPORATION
    Inventors: Naoki Sano, Tohru Mogi
  • Patent number: 11047991
    Abstract: Embodiments describe determining position by selecting a set of digital pseudorandom sequences. The magnitudes of the cross-correlation between any two sequences of the chosen set are below a specified threshold. A subset of digital pseudorandom sequences are selected from the set such that the magnitudes of the autocorrelation function of each member of the subset, within a specified region adjacent to the peak of the autocorrelation function, are equal to or less than a prescribed value. Each transmitter transmits a positioning signal, and at least a portion of the positioning signal is modulated with at least one member of the subset. At least two transmitters of the plurality of transmitters modulate respective positioning signals with different members of the subset of digital pseudorandom sequences.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: June 29, 2021
    Assignee: NextNav, LLC
    Inventors: Arun Raghupathy, Norman F. Krasner
  • Patent number: 11022699
    Abstract: Embodiments of the present invention provide an alternate power source through the use of photovoltaic technology that mounts to a bracket that attaches to the tripod underneath the GPS base station. Some embodiments of the present invention include a photovoltaic solar panel battery adapted to provide the GPS base station with a longer operating time window and the ability to conveniently recharge the base station when needed. Additionally, a photovoltaic solar panel battery allows the GPS base station to independently recharge and operate without a traditional external power source.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: June 1, 2021
    Inventor: Cory A. Webb
  • Patent number: 11016164
    Abstract: A transmit arrangement (100) for generating a signal pattern suitable for a localization comprises a first antenna (102) and at least one second antenna (104) spatially separated from the first antenna. A transmit apparatus (106) of the transmit arrangement (100) is configured to generate a known signal form and to transmit the known signal form by means of a transmit signal via the first and second antennas (104).
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: May 25, 2021
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Sven Hafenecker, Nils Hadaschik, Marc Fassbinder
  • Patent number: 11016199
    Abstract: A system and method for determining a mobile receiver position includes receiving a first and a second set of satellite observations; determining a first and second fixed ambiguity set associated with a first and second transformation respectively; determining cross-validated ambiguities between the first and second fixed ambiguity sets; and determining the mobile receiver position based on at least one of the first or second fixed ambiguity sets.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: May 25, 2021
    Assignee: Swift Navigation, Inc.
    Inventors: Paul Grgich, Anthony Mark Cole, Sébastien Carcanague
  • Patent number: 11002824
    Abstract: An ultra-wideband (UWB)-assisted precise positioning system, which includes a plurality of mobile base stations (MBSs) and a central control base station (CBS). The central CBS and the MBSs are configured to: measure, by the UWB communication module, distances between the MBSs, such that the moving module controls the MBSs to have a predetermined distance from one another and form a predetermined pattern; configure the global satellite positioning (GPS) modules to perform positioning to obtain a plurality of initial positions; execute a pattern search algorithm to generate a plurality of corrected positions; generate a plurality of predicted positions to be input to a cost function for finding a plurality of final predicted positions having relatively smallest errors; measure, by the UWB communication module, distances of a test object relative to the MBSs and calculate a position of the test object.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: May 11, 2021
    Assignee: PSJ INTERNATIONAL LTD.
    Inventors: Ruey-Beei Wu, Yu-Chih Chen
  • Patent number: 11002818
    Abstract: A wave-based method has at least two reference stations (1, 2) transmit signals (s1, s2; s3, s4). The signals are transmitted almost at the same time (S1, S2), are transmitted in the same frequency range, and are separable using a multiplexing method. At least one of the sending reference stations (1, 2), besides transmitting its own signal (s1, s2), also receives at least one signal (s2, s1) sent by another reference station (2, 1) at the same time and determines a time stagger (?1) and/or a phase angle between its own transmission and the reception with high precision. At least one receiving station (7) which at least receives the signals (s1, s2) receives the signals (s3, s4) from at least two of the reference stations (1, 2). A system and stations perform the wave-based method.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: May 11, 2021
    Assignee: SYMEO GmbH
    Inventors: Martin Vossiek, Peter Gulden, Fabian Kirsch