Patents by Inventor Brian Schipper

Brian Schipper has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10795030
    Abstract: An example pointing system includes a sensor that measures change in angular position, a first GNSS antenna, and a second GNSS antenna mounted to a rigid body that is removable from the pointing system after calibration of the sensor. The GNSS antennas have a fixed, known baseline. The pointing system includes at least one GNSS receiver with first and second RF inputs respectively coupled to the GNSS antennas. The at least one GNSS receiver includes respective paths to process GNSS signals received from the first and second RF inputs. The pointing system includes at least one processor, communicatively coupled to the sensor and receiver, configured to: determine initial attitude of the pointing system based on the processed GNSS signals; calibrate the sensor using the determined initial attitude; determine a pointing solution for the pointing system based on measurements from the calibrated sensor without GNSS signals from second GNSS antenna.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: October 6, 2020
    Assignee: Honeywell International Inc.
    Inventors: Brian Schipper, Ross Merritt, Wayne A. Soehren
  • Patent number: 10712450
    Abstract: A method of operating a global positioning receiver is provided. The method includes receiving a plurality of signals from a plurality of satellites. At least a measurement from and location of each satellite is determined based on the received plurality of signals. An approximate vehicle velocity vector is determined based on the received plurality of signals. A dot product between a line of sight between each satellite and a vehicle having the receiver and the determined vehicle velocity vector is determined. Each measurement associated with each determined dot product that is below a minimum dot product threshold is removed to obtain a resultant set of measurements. A position solution based on the resultant set of measurements is then determined.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: July 14, 2020
    Assignee: Honeywell International Inc.
    Inventors: Brian Schipper, Mats Anders Brenner, Martin Musil
  • Publication number: 20200072985
    Abstract: An example pointing system includes a sensor that measures change in angular position, a first GNSS antenna, and a second GNSS antenna mounted to a rigid body that is removable from the pointing system after calibration of the sensor. The GNSS antennas have a fixed, known baseline. The pointing system includes at least one GNSS receiver with first and second RF inputs respectively coupled to the GNSS antennas. The at least one GNSS receiver includes respective paths to process GNSS signals received from the first and second RF inputs. The pointing system includes at least one processor, communicatively coupled to the sensor and receiver, configured to: determine initial attitude of the pointing system based on the processed GNSS signals; calibrate the sensor using the determined initial attitude; determine a pointing solution for the pointing system based on measurements from the calibrated sensor without GNSS signals from second GNSS antenna.
    Type: Application
    Filed: August 30, 2018
    Publication date: March 5, 2020
    Applicant: Honeywell International Inc.
    Inventors: Brian Schipper, Ross Merritt, Wayne A. Soehren
  • Patent number: 10574437
    Abstract: A method and apparatus are provided for performing consistency testing for a Bose-Chaudhuri-Hocquenghem (BCH) error corrected first sub-frame of navigation message broadcast from a satellite of a GNSS. Consistency testing is performed by comparing BCH encoded portion(s)s of data symbols with elements of look up table(s) to see if such portions are similar to element(s) of the look up table(s).
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: February 25, 2020
    Assignee: Honeywell International Inc.
    Inventors: Ping Ye, Xiao Cao, Brian Schipper
  • Publication number: 20190212456
    Abstract: A method of operating a global positioning receiver is provided. The method includes receiving a plurality of signals from a plurality of satellites. At least a measurement from and location of each satellite is determined based on the received plurality of signals. An approximate vehicle velocity vector is determined based on the received plurality of signals. A dot product between a line of sight between each satellite and a vehicle having the receiver and the determined vehicle velocity vector is determined. Each measurement associated with each determined dot product that is below a minimum dot product threshold is removed to obtain a resultant set of measurements. A position solution based on the resultant set of measurements is then determined.
    Type: Application
    Filed: January 9, 2018
    Publication date: July 11, 2019
    Applicant: Honeywell International Inc.
    Inventors: Brian Schipper, Mats Anders Brenner, Martin Musil
  • Patent number: 8106822
    Abstract: A Global Navigation Satellite System (GNSS) device, such as the Global Positioning System (GPS) device, uses satellite orbital position information from almanac and/or ephemeris data to change a search parameter, such as reducing the number of analyzed frequency bins or setting signal strength threshold, so that satellite signal acquisition times are reduced. An exemplary embodiment estimates an orbital position for at least one GNSS satellite based upon at least one of almanac data and ephemeris data, detects a signal emitted from the at least one GNSS satellite, and based upon the estimated orbital position information for the at least one GNSS satellite that is determined from the almanac data and the ephemeris data, adjusts at least one parameter used in the analysis of the detected signal.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: January 31, 2012
    Assignee: Honeywell International Inc.
    Inventors: Brian Schipper, Kartik B. Ariyur
  • Publication number: 20100149025
    Abstract: A method and a system for providing a substituted timing signal for a missing satellite ephemeris in execution of a RAIM algorithm includes deriving a plurality of position, velocity, and time solutions from a GPS navigation system. The position, velocity and time solutions are derived from a plurality of satellite ephemerides. An atomic clock provides an atomic clock signal. The atomic clock signal is compared to the derived time solutions to arrive at a correction factor. The atomic clock signal is adjusted according to the correction factor to develop an adjusted atomic clock signal. The adjusted atomic clock signal is substituted for a missing satellite ephemeris to execute the RAIM algorithm.
    Type: Application
    Filed: February 22, 2010
    Publication date: June 17, 2010
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: David W. Meyers, Lawrence C. Vallot, Brian Schipper, Kelly Muldoon
  • Patent number: 7667644
    Abstract: A method and a system for providing a substituted timing signal for a missing satellite ephemeris in execution of a RAIM algorithm includes deriving a plurality of position, velocity, and time solutions from a GPS navigation system. The position, velocity and time solutions are derived from a plurality of satellite ephemerides. An atomic clock provides an atomic clock signal. The atomic clock signal is compared to the derived time solutions to arrive at a correction factor. The atomic clock signal is adjusted according to the correction factor to develop an adjusted atomic clock signal. The adjusted atomic clock signal is substituted for a missing satellite ephemeris to execute the RAIM algorithm.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: February 23, 2010
    Assignee: Honeywell International Inc.
    Inventors: David W. Meyers, Lawrence C. Vallot, Brian Schipper, Kelly Muldoon
  • Publication number: 20090207076
    Abstract: A Global Navigation Satellite System (GNSS) device, such as the Global Positioning System (GPS) device, uses satellite orbital position information from almanac and/or ephemeris data to change a search parameter, such as reducing the number of analyzed frequency bins or setting signal strength threshold, so that satellite signal acquisition times are reduced. An exemplary embodiment estimates an orbital position for at least one GNSS satellite based upon at least one of almanac data and ephemeris data, detects a signal emitted from the at least one GNSS satellite, and based upon the estimated orbital position information for the at least one GNSS satellite that is determined from the almanac data and the ephemeris data, adjusts at least one parameter used in the analysis of the detected signal.
    Type: Application
    Filed: February 19, 2008
    Publication date: August 20, 2009
    Applicant: Honeywell International Inc.
    Inventors: Brian Schipper, Kartik B. Ariyur
  • Publication number: 20090091495
    Abstract: A method and a system for providing a substituted timing signal for a missing satellite ephemeris in execution of a RAIM algorithm includes deriving a plurality of position, velocity, and time solutions from a GPS navigation system. The position, velocity and time solutions are derived from a plurality of satellite ephemerides. An atomic clock provides an atomic clock signal. The atomic clock signal is compared to the derived time solutions to arrive at a correction factor. The atomic clock signal is adjusted according to the correction factor to develop an adjusted atomic clock signal. The adjusted atomic clock signal is substituted for a missing satellite ephemeris to execute the RAIM algorithm.
    Type: Application
    Filed: October 9, 2007
    Publication date: April 9, 2009
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: David W. Meyers, Lawrence C. Vallot, Brian Schipper, Kelly Muldoon
  • Publication number: 20050110677
    Abstract: A GPS receiver acquires GPS data from at least one GPS satellite. A code offset and a frequency offset are determined based on the acquired GPS data. A change in GPS position of the GPS receiver during the determination of the code offset is determined, and a change in rate of the GPS receiver during the determination of the frequency offset is also determined. The code offset is updated based on the change in GPS position, and the frequency offset is updated based on the change in rate. The updated code offset and the updated frequency offset are handed over to a tracking function.
    Type: Application
    Filed: November 24, 2003
    Publication date: May 26, 2005
    Inventors: Brian Schipper, Charles Bye
  • Publication number: 20050065723
    Abstract: A navigation system includes an inertial measurement unit, a navigation computer, a GPS receiver, and a clock controller. The inertial measurement unit has a first clock and a first switch, the navigation computer has a second clock and a second switch, and the GPS receiver has a third clock. The clock controller controls the first and second switches. Accordingly, the inertial measurement unit, the navigation computer, and the GPS receiver may use their own clocks, or the inertial measurement unit and the navigation computer may use the second clock, or the inertial measurement unit, the navigation computer, and the GPS receiver may use the third clock.
    Type: Application
    Filed: September 8, 2003
    Publication date: March 24, 2005
    Inventors: Charles Bye, Brian Schipper