Patents by Inventor David Prasser

David Prasser 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: 20230266129
    Abstract: Various examples are directed to systems and methods for locating a vehicle. A pose state estimator may access a previous position for the vehicle at a first time, wherein the previous position is on a first sub-map of a plurality of sub-maps. The pose state estimator may receive from a first localizer a first position estimate for the vehicle at a second time after the first time. The first position estimate may be on a second sub-map of the plurality of sub-maps. The pose state estimator may send to a second localizer a sub-map change message indicating the second sub-map.
    Type: Application
    Filed: April 28, 2023
    Publication date: August 24, 2023
    Inventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot
  • Patent number: 11668573
    Abstract: Various examples are directed to systems and methods for locating a vehicle. A pose state estimator may access a previous position for the vehicle at a first time, wherein the previous position is on a first sub-map of a plurality of sub-maps. The pose state estimator may receive from a first localizer a first position estimate for the vehicle at a second time after the first time. The first position estimate may be on a second sub-map of the plurality of sub-maps. The pose state estimator may send to a second localizer a sub-map change message indicating the second sub-map.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: June 6, 2023
    Assignee: UATC, LLC
    Inventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot
  • Publication number: 20230136329
    Abstract: This disclosure relates to a method for locating a target in a point cloud. The point cloud comprises multiple coordinate points. The method is performed by a processor, which determines a candidate location of the target in the point cloud and calculates a score for the candidate location. The score is indicative of a match between a virtual shape of the target located at the candidate location and at least some of the multiple coordinate points. The processor then iteratively optimises the candidate location to improve the score to thereby improve the match and upon meeting a termination criterion, outputs the optimised candidate location as the location of the target in the point cloud.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 4, 2023
    Inventors: Hossein Ahmadzadeh, David Prasser, Timothy Greenfield
  • Patent number: 11621025
    Abstract: A method for receiving autonomous vehicle (AV) map data associated with an AV map of a geographic location and coverage map data associated with a coverage map of the geographic location. The AV map data is associated with an AV lane of a roadway in the geographic location, and the coverage map data is associated with a coverage lane of the roadway in the geographic location. The method includes generating a hybrid map of the geographic location based on the AV map data and the coverage map data and providing hybrid map data associated with the hybrid map for routing of an AV. The hybrid map includes the AV lane linked with the coverage lane of the roadway.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: April 4, 2023
    Assignee: UATC, LLC
    Inventors: Gordon Peter Bailey, Bryan John Nagy, Adam Henry Polk Milstein, Robert Zlot, Adam Panzica, Brett Bavar, David Prasser, Peter Hansen, Ethan Duff Eade, Xxx Xinjilefu, Brett Browning
  • Patent number: 11435194
    Abstract: A georeferenced trajectory system for vehicles receives trajectory data generated by a plurality of vehicle sensors and scaffolds of previously generated maps and aligns geometry data for a geographic region and trajectory data from the received data from different map builds. A scaffold of a geographic region to be mapped during an initial map build is generated, and the trajectory data from respective map builds is aligned with the scaffold of previously generated maps to generate a map of the geographic region. The resulting map expands the coverage of the existing map such that old and new map data is in a common consistent reference frame whereby the map may be built incrementally by merging or expanding local scaffolds and filling in the merged or expanded scaffold while ensuring global consistency.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: September 6, 2022
    Assignee: UATC, LLC
    Inventors: David Prasser, Evan Herbst, Robert Zlot, Jennifer Joyce Padgett, Bryan John Nagy, Xiaodong Zhang, Michael Napoli, Adrian Rechy Romero
  • Patent number: 11340632
    Abstract: A georeferenced trajectory estimation system receives data generated by vehicle sensors from a fleet of vehicles and identifies sets of sensor measurements for a geographic region taken at different times. The sets of sensor measurements include environment geometry data and unaligned trajectory data in local coordinate frames. The georeferenced trajectory estimation system aligns the environment geometry data between sets of sensor measures, and, based on the alignment of the environment geometry data, transforms the identified corresponding trajectory data into a common coordinate frame.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: May 24, 2022
    Assignee: UATC, LLC
    Inventors: Robert Zlot, Ethan Duff Eade, Peter Hansen, David Prasser, Xxx Xinjilefu
  • Patent number: 11237004
    Abstract: A georeferenced trajectory estimation system for vehicles receives trajectory data generated by a plurality of vehicle sensors and fixed reference points of previously generated maps and aligns geometry data for a geographic region and trajectory data from the received data from different map builds. The trajectory data from respective map builds is aligned with fixed reference points of previously generated maps to generate a map of the geographic region. The received map data may include submap or spatially indexed data that is used to provide estimates of where a vehicle in an unmapped area is located by generating a series of pose estimates relating back to a fixed reference point in a previously mapped area. The resulting map expands the coverage of the existing map such that old and new map data is in a common consistent reference frame whereby the map may be built incrementally while ensuring global consistency.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: February 1, 2022
    Assignee: UATC, LLC
    Inventors: David Prasser, Robert Zlot, Peter Hansen, Jennifer Joyce Padgett
  • Publication number: 20210333111
    Abstract: Various examples are directed to systems and methods for locating a vehicle. A pose state estimator may access a previous position for the vehicle at a first time, wherein the previous position is on a first sub-map of a plurality of sub-maps. The pose state estimator may receive from a first localizer a first position estimate for the vehicle at a second time after the first time. The first position estimate may be on a second sub-map of the plurality of sub-maps. The pose state estimator may send to a second localizer a sub-map change message indicating the second sub-map.
    Type: Application
    Filed: July 6, 2021
    Publication date: October 28, 2021
    Inventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot
  • Patent number: 11073403
    Abstract: Various examples are directed to systems and methods for locating a vehicle. A pose state estimator may access a previous position for the vehicle at a first time, wherein the previous position is on a first sub-map of a plurality of sub-maps. The pose state estimator may receive from a first localizer a first position estimate for the vehicle at a second time after the first time. The first position estimate may be on a second sub-map of the plurality of sub-maps. The pose state estimator may send to a second localizer a sub-map change message indicating the second sub-map.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: July 27, 2021
    Assignee: UATC, LLC
    Inventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot
  • Patent number: 10782411
    Abstract: Various examples are directed to systems and methods for determining a pose of a vehicle. A first localizer may generate a first pose estimate for the vehicle based at least in part on a comparison of first remote sensor data to a first reference data. A second localizer may generate a second pose estimate for the vehicle based at least in part on a comparison of second remote sensor data to a second reference data. A pose state estimator may generate a vehicle pose for the vehicle based at least in part on a first previous pose of the vehicle, the first pose estimate, and the second pose estimate.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: September 22, 2020
    Assignee: UATC, LLC
    Inventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot, Ethan Duff Eade
  • Publication number: 20200240794
    Abstract: A georeferenced trajectory system for vehicles receives trajectory data generated by a plurality of vehicle sensors and scaffolds of previously generated maps and aligns geometry data for a geographic region and trajectory data from the received data from different map builds. A scaffold of a geographic region to be mapped during an initial map build is generated, and the trajectory data from respective map builds is aligned with the scaffold of previously generated maps to generate a map of the geographic region. The resulting map expands the coverage of the existing map such that old and new map data is in a common consistent reference frame whereby the map may be built incrementally by merging or expanding local scaffolds and filling in the merged or expanded scaffold while ensuring global consistency.
    Type: Application
    Filed: January 28, 2020
    Publication date: July 30, 2020
    Inventors: David Prasser, Evan Herbst, Robert Zlot, Jennifer Joyce Padgett, Bryan John Nagy, Xiaodong Zhang, Michael Napoli, Adrian Rechy Romero
  • Patent number: 10678262
    Abstract: A system to use submaps to control operation of a vehicle is disclosed. A storage system may be provided with a vehicle to store a collection of submaps that represent a geographic area where the vehicle may be driven. A programmatic interface may be provided to receive submaps and submap updates independently of other submaps.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: June 9, 2020
    Assignee: UATC, LLC
    Inventors: Brett Browning, Peter Hansen, Ethan Eade, David Prasser, David LaRose, Robert Zlot
  • Patent number: 10474162
    Abstract: A system to use submaps to control operation of a vehicle is disclosed. A storage system may be provided with a vehicle to store a collection of submaps that represent a geographic area where the vehicle may be driven. A programmatic interface may be provided to receive submaps and submap updates independently of other submaps.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: November 12, 2019
    Assignee: UATC, LLC
    Inventors: Brett Browning, Peter Hansen, Ethan Eade, David Prasser, David LaRose, Robert Zlot
  • Publication number: 20190302801
    Abstract: A georeferenced trajectory estimation system receives data generated by vehicle sensors from a fleet of vehicles and identifies sets of sensor measurements for a geographic region taken at different times. The sets of sensor measurements include environment geometry data and unaligned trajectory data in local coordinate frames. The georeferenced trajectory estimation system aligns the environment geometry data between sets of sensor measures, and, based on the alignment of the environment geometry data, transforms the identified corresponding trajectory data into a common coordinate frame.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 3, 2019
    Inventors: Robert Zlot, Ethan Duff Eade, Peter Hansen, David Prasser, Xxx Xinjilefu
  • Publication number: 20190301873
    Abstract: A georeferenced trajectory estimation system for vehicles receives trajectory data generated by a plurality of vehicle sensors and fixed reference points of previously generated maps and aligns geometry data for a geographic region and trajectory data from the received data from different map builds. The trajectory data from respective map builds is aligned with fixed reference points of previously generated maps to generate a map of the geographic region. The received map data may include submap or spatially indexed data that is used to provide estimates of where a vehicle in an unmapped area is located by generating a series of pose estimates relating back to a fixed reference point in a previously mapped area. The resulting map expands the coverage of the existing map such that old and new map data is in a common consistent reference frame whereby the map may be built incrementally while ensuring global consistency.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 3, 2019
    Inventors: David Prasser, Robert Zlot, Peter Hansen, Jennifer Joyce Padgett
  • Publication number: 20190219404
    Abstract: Various examples are directed to systems and methods for locating a vehicle. A pose state estimator may access a previous position for the vehicle at a first time, wherein the previous position is on a first sub-map of a plurality of sub-maps. The pose state estimator may receive from a first localizer a first position estimate for the vehicle at a second time after the first time. The first position estimate may be on a second sub-map of the plurality of sub-maps. The pose state estimator may send to a second localizer a sub-map change message indicating the second sub-map.
    Type: Application
    Filed: May 23, 2018
    Publication date: July 18, 2019
    Inventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot
  • Publication number: 20190219699
    Abstract: Various examples are directed to systems and methods for determining a pose of a vehicle. A first localizer may generate a first pose estimate for the vehicle based at least in part on a comparison of first remote sensor data to a first reference data. A second localizer may generate a second pose estimate for the vehicle based at least in part on a comparison of second remote sensor data to a second reference data. A pose state estimator may generate a vehicle pose for the vehicle based at least in part on a first previous pose of the vehicle, the first pose estimate, and the second pose estimate.
    Type: Application
    Filed: May 23, 2018
    Publication date: July 18, 2019
    Inventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot, Ethan Duff Eade
  • Publication number: 20180005050
    Abstract: A system to use submaps to control operation of a vehicle is disclosed. A storage system may be provided with a vehicle to store a collection of submaps that represent a geographic area where the vehicle may be driven. A programmatic interface may be provided to receive submaps and submap updates independently of other submaps.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 4, 2018
    Inventors: Brett Browning, Peter Hansen, Ethan Eade, David Prasser, David LaRose, Robert Zlot
  • Publication number: 20180005407
    Abstract: A system to use submaps to control operation of a vehicle is disclosed. A storage system may be provided with a vehicle to store a collection of submaps that represent a geographic area where the vehicle may be driven. A programmatic interface may be provided to receive submaps and submap updates independently of other submaps.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 4, 2018
    Inventors: Brett Browning, Peter Hansen, Ethan Eade, David Prasser, David LaRose, Robert Zlot
  • Publication number: 20180003511
    Abstract: A system to use submaps to control operation of a vehicle is disclosed. A storage system may be provided with a vehicle to store a collection of submaps that represent a geographic area where the vehicle may be driven. A programmatic interface may be provided to receive submaps and submap updates independently of other submaps.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 4, 2018
    Inventors: Brett Browning, Peter Hansen, Ethan Eade, David Prasser, David LaRose, Robert Zlot