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).
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Publication number: 20230266129Abstract: 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: ApplicationFiled: April 28, 2023Publication date: August 24, 2023Inventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot
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Patent number: 11668573Abstract: 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: GrantFiled: July 6, 2021Date of Patent: June 6, 2023Assignee: UATC, LLCInventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot
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Publication number: 20230136329Abstract: 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: ApplicationFiled: October 27, 2022Publication date: May 4, 2023Inventors: Hossein Ahmadzadeh, David Prasser, Timothy Greenfield
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Patent number: 11621025Abstract: 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: GrantFiled: July 2, 2021Date of Patent: April 4, 2023Assignee: UATC, LLCInventors: 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
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Patent number: 11435194Abstract: 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: GrantFiled: January 28, 2020Date of Patent: September 6, 2022Assignee: UATC, LLCInventors: David Prasser, Evan Herbst, Robert Zlot, Jennifer Joyce Padgett, Bryan John Nagy, Xiaodong Zhang, Michael Napoli, Adrian Rechy Romero
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Patent number: 11340632Abstract: 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: GrantFiled: March 27, 2019Date of Patent: May 24, 2022Assignee: UATC, LLCInventors: Robert Zlot, Ethan Duff Eade, Peter Hansen, David Prasser, Xxx Xinjilefu
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Patent number: 11237004Abstract: 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: GrantFiled: March 27, 2019Date of Patent: February 1, 2022Assignee: UATC, LLCInventors: David Prasser, Robert Zlot, Peter Hansen, Jennifer Joyce Padgett
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Publication number: 20210333111Abstract: 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: ApplicationFiled: July 6, 2021Publication date: October 28, 2021Inventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot
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Patent number: 11073403Abstract: 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: GrantFiled: May 23, 2018Date of Patent: July 27, 2021Assignee: UATC, LLCInventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot
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Patent number: 10782411Abstract: 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: GrantFiled: May 23, 2018Date of Patent: September 22, 2020Assignee: UATC, LLCInventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot, Ethan Duff Eade
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Publication number: 20200240794Abstract: 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: ApplicationFiled: January 28, 2020Publication date: July 30, 2020Inventors: David Prasser, Evan Herbst, Robert Zlot, Jennifer Joyce Padgett, Bryan John Nagy, Xiaodong Zhang, Michael Napoli, Adrian Rechy Romero
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Patent number: 10678262Abstract: 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: GrantFiled: June 30, 2017Date of Patent: June 9, 2020Assignee: UATC, LLCInventors: Brett Browning, Peter Hansen, Ethan Eade, David Prasser, David LaRose, Robert Zlot
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Patent number: 10474162Abstract: 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: GrantFiled: June 30, 2017Date of Patent: November 12, 2019Assignee: UATC, LLCInventors: Brett Browning, Peter Hansen, Ethan Eade, David Prasser, David LaRose, Robert Zlot
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Publication number: 20190302801Abstract: 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: ApplicationFiled: March 27, 2019Publication date: October 3, 2019Inventors: Robert Zlot, Ethan Duff Eade, Peter Hansen, David Prasser, Xxx Xinjilefu
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Publication number: 20190301873Abstract: 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: ApplicationFiled: March 27, 2019Publication date: October 3, 2019Inventors: David Prasser, Robert Zlot, Peter Hansen, Jennifer Joyce Padgett
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Publication number: 20190219404Abstract: 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: ApplicationFiled: May 23, 2018Publication date: July 18, 2019Inventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot
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Publication number: 20190219699Abstract: 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: ApplicationFiled: May 23, 2018Publication date: July 18, 2019Inventors: Rachel Ahn, David Prasser, Peter Hansen, Robert Zlot, Ethan Duff Eade
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Publication number: 20180005050Abstract: 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: ApplicationFiled: June 30, 2017Publication date: January 4, 2018Inventors: Brett Browning, Peter Hansen, Ethan Eade, David Prasser, David LaRose, Robert Zlot
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Publication number: 20180005407Abstract: 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: ApplicationFiled: June 30, 2017Publication date: January 4, 2018Inventors: Brett Browning, Peter Hansen, Ethan Eade, David Prasser, David LaRose, Robert Zlot
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Publication number: 20180003511Abstract: 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: ApplicationFiled: June 30, 2017Publication date: January 4, 2018Inventors: Brett Browning, Peter Hansen, Ethan Eade, David Prasser, David LaRose, Robert Zlot