Patents by Inventor Paul Grgich

Paul Grgich 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).

  • Publication number: 20230296786
    Abstract: A system and method for determining a GNSS receiver position includes receiving a first and a second set of satellite observations; determining a first and second ambiguity set associated with a first and second transformation respectively; determining cross-validated ambiguities between the first and second ambiguity sets; and determining the GNSS receiver position based on at least one of the first or second ambiguity sets.
    Type: Application
    Filed: April 17, 2023
    Publication date: September 21, 2023
    Inventors: Paul Grgich, Anthony Mark Cole, Sebastien Carcanague
  • Publication number: 20230204795
    Abstract: A method for reduced-outlier satellite positioning includes receiving a set of satellite positioning observations at a receiver; generating a first receiver position estimate; generating a set of posterior observation residual values from the set of satellite positioning observations and the first receiver position estimate; based on the set of posterior observation residual values, identifying a subset of the satellite positioning observations as statistical outliers; and after mitigating an effect of the statistical outliers, generating a second receiver position estimate having higher accuracy than the first receiver position estimate.
    Type: Application
    Filed: March 3, 2023
    Publication date: June 29, 2023
    Inventors: Paul Grgich, Matt Peddie
  • Patent number: 11681050
    Abstract: A system and method for determining a GNSS receiver position includes receiving a first and a second set of satellite observations; determining a first and second ambiguity set associated with a first and second transformation respectively; determining cross-validated ambiguities between the first and second ambiguity sets; and determining the GNSS receiver position based on at least one of the first or second ambiguity sets.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: June 20, 2023
    Assignee: Swift Navigation, Inc.
    Inventors: Paul Grgich, Anthony Mark Cole, Sébastien Carcanague
  • Patent number: 11624843
    Abstract: A method for reduced-outlier satellite positioning includes receiving a set of satellite positioning observations at a receiver; generating a first receiver position estimate; generating a set of posterior observation residual values from the set of satellite positioning observations and the first receiver position estimate; based on the set of posterior observation residual values, identifying a subset of the satellite positioning observations as statistical outliers; and after mitigating an effect of the statistical outliers, generating a second receiver position estimate having higher accuracy than the first receiver position estimate.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: April 11, 2023
    Assignee: Swift Navigation, Inc.
    Inventors: Paul Grgich, Matt Peddie
  • Publication number: 20230018631
    Abstract: A method and system for determining a receiver position comprising receiving satellite observations from a set of satellites, determining differenced observations based on the satellite observations, determining an all-in-view position of the receiver based on the differenced observations, determining a set of fault modes each associated with a subset of the differenced observations, for a fault mode of the set of fault modes, determining a fault-tolerant position of the receiver using the subset of differenced observations associated with the fault mode, when the all-in-view position and the fault tolerant position of the receiver for each fault mode are within a solution separation threshold, calculating a protection level associated with the all-in-view position of the receiver.
    Type: Application
    Filed: September 8, 2022
    Publication date: January 19, 2023
    Inventors: Paul Grgich, Lloyd Maza, Philippe Brocard
  • Patent number: 11480690
    Abstract: A method and system for determining a receiver position comprising receiving satellite observations from a set of satellites, determining differenced observations based on the satellite observations, determining an all-in-view position of the receiver based on the differenced observations, determining a set of fault modes each associated with a subset of the differenced observations, for a fault mode of the set of fault modes, determining a fault-tolerant position of the receiver using the subset of differenced observations associated with the fault mode, when the all-in-view position and the fault tolerant position of the receiver for each fault mode are within a solution separation threshold, calculating a protection level associated with the all-in-view position of the receiver.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: October 25, 2022
    Assignee: Swift Navigation, Inc.
    Inventors: Paul Grgich, Lloyd Maza, Philippe Brocard
  • Publication number: 20220187475
    Abstract: A system and method for determining a receiver position can include determining a receiver position based on a set of satellite observations, determining the receiver position based on sensor measurements, determining a satellite observation discontinuity; based on the satellite observation discontinuity, determining a second receiver position.
    Type: Application
    Filed: March 4, 2022
    Publication date: June 16, 2022
    Inventors: Fergus MacPherson Noble, Sebastien Carcanague, Paul Grgich
  • Patent number: 11300689
    Abstract: A system and method for determining a receiver position can include determining a receiver position based on a set of satellite observations, determining the receiver position based on sensor measurements, determining a satellite observation discontinuity; based on the satellite observation discontinuity, determining a second receiver position.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: April 12, 2022
    Assignee: Swift Navigation, Inc.
    Inventors: Fergus MacPherson Noble, Sébastien Carcanague, Paul Grgich
  • Publication number: 20210382181
    Abstract: A method and system for determining a receiver position comprising receiving satellite observations from a set of satellites, determining differenced observations based on the satellite observations, determining an all-in-view position of the receiver based on the differenced observations, determining a set of fault modes each associated with a subset of the differenced observations, for a fault mode of the set of fault modes, determining a fault-tolerant position of the receiver using the subset of differenced observations associated with the fault mode, when the all-in-view position and the fault tolerant position of the receiver for each fault mode are within a solution separation threshold, calculating a protection level associated with the all-in-view position of the receiver.
    Type: Application
    Filed: June 9, 2021
    Publication date: December 9, 2021
    Inventors: Paul Grgich, Lloyd Maza, Philippe Brocard
  • Publication number: 20210255336
    Abstract: A system and method for determining a receiver position can include determining a receiver position based on a set of satellite observations, determining the receiver position based on sensor measurements, determining a satellite observation discontinuity; based on the satellite observation discontinuity, determining a second receiver position.
    Type: Application
    Filed: February 16, 2021
    Publication date: August 19, 2021
    Inventors: Fergus MacPherson Noble, Sébastien Carcanague, Paul Grgich
  • Publication number: 20210239844
    Abstract: A system and method for determining a GNSS receiver position includes receiving a first and a second set of satellite observations; determining a first and second ambiguity set associated with a first and second transformation respectively; determining cross-validated ambiguities between the first and second ambiguity sets; and determining the GNSS receiver position based on at least one of the first or second ambiguity sets.
    Type: Application
    Filed: April 20, 2021
    Publication date: August 5, 2021
    Inventors: Paul Grgich, Anthony Mark Cole, Sébastien Carcanague
  • Publication number: 20210181357
    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: Application
    Filed: December 11, 2020
    Publication date: June 17, 2021
    Inventors: Paul Grgich, Anthony Mark Cole, Sébastien Carcanague
  • 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
  • Publication number: 20200158883
    Abstract: A method for reduced-outlier satellite positioning includes receiving a set of satellite positioning observations at a receiver; generating a first receiver position estimate; generating a set of posterior observation residual values from the set of satellite positioning observations and the first receiver position estimate; based on the set of posterior observation residual values, identifying a subset of the satellite positioning observations as statistical outliers; and after mitigating an effect of the statistical outliers, generating a second receiver position estimate having higher accuracy than the first receiver position estimate.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 21, 2020
    Inventors: Paul Grgich, Matthew Peddie
  • Patent number: 10578747
    Abstract: A method for reduced-outlier satellite positioning includes receiving a set of satellite positioning observations at a receiver; generating a first receiver position estimate; generating a set of posterior observation residual values from the set of satellite positioning observations and the first receiver position estimate; based on the set of posterior observation residual values, identifying a subset of the satellite positioning observations as statistical outliers; and after mitigating an effect of the statistical outliers, generating a second receiver position estimate having higher accuracy than the first receiver position estimate.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: March 3, 2020
    Assignee: Swift Navigation, Inc.
    Inventors: Paul Grgich, Matt Peddie
  • Publication number: 20190187298
    Abstract: A method for reduced-outlier satellite positioning includes receiving a set of satellite positioning observations at a receiver; generating a first receiver position estimate; generating a set of posterior observation residual values from the set of satellite positioning observations and the first receiver position estimate; based on the set of posterior observation residual values, identifying a subset of the satellite positioning observations as statistical outliers; and after mitigating an effect of the statistical outliers, generating a second receiver position estimate having higher accuracy than the first receiver position estimate.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 20, 2019
    Inventors: Paul Grgich, Matt Peddie