Patents by Inventor Kumar Chhokra

Kumar Chhokra 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).

  • Positioning accuracy using 3D building models
    Patent number: 9681269
    Abstract: A mobile device adjusts the extents to which it depends on various satellites to estimate its global position based on the predicted probability for each such satellite that a ray extending from that satellite to the mobile device is obstructed by a building. The mobile device can predict the probabilities of building obstructions based on a digital model of the environment in which the mobile device is estimated to be. The mobile device weights the extent of uncertainty for each satellite's global positioning data based on the predicted probability of obstruction for that satellite. Using these weighted uncertainties, the mobile device selects the extents to which it relies on each satellite's global positioning data when estimating the mobile device's current global position.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: June 13, 2017
    Assignee: Apple Inc.
    Inventors: Glenn D. MacGougan, Robert W. Mayor, Kumar Chhokra
  • POSITIONING ACCURACY USING 3D BUILDING MODELS
    Publication number: 20170013407
    Abstract: A mobile device adjusts the extents to which it depends on various satellites to estimate its global position based on the predicted probability for each such satellite that a ray extending from that satellite to the mobile device is obstructed by a building. The mobile device can predict the probabilities of building obstructions based on a digital model of the environment in which the mobile device is estimated to be. The mobile device weights the extent of uncertainty for each satellite's global positioning data based on the predicted probability of obstruction for that satellite. Using these weighted uncertainties, the mobile device selects the extents to which it relies on each satellite's global positioning data when estimating the mobile device's current global position.
    Type: Application
    Filed: July 13, 2016
    Publication date: January 12, 2017
    Applicant: APPLE INC.
    Inventors: Glenn D. MacGougan, Robert W. Mayor, Kumar Chhokra
  • Positioning accuracy using 3D building models
    Patent number: 9408175
    Abstract: A mobile device adjusts the extents to which it depends on various satellites to estimate its global position based on the predicted probability for each such satellite that a ray extending from that satellite to the mobile device is obstructed by a building. The mobile device can predict the probabilities of building obstructions based on a digital model of the environment in which the mobile device is estimated to be. The mobile device weights the extent of uncertainty for each satellite's global positioning data based on the predicted probability of obstruction for that satellite. Using these weighted uncertainties, the mobile device selects the extents to which it relies on each satellite's global positioning data when estimating the mobile device's current global position.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: August 2, 2016
    Assignee: APPLE INC.
    Inventors: Glenn D. MacGougan, Robert W. Mayor, Kumar Chhokra
  • POSITIONING ACCURACY USING 3D BUILDING MODELS
    Publication number: 20150319729
    Abstract: A mobile device adjusts the extents to which it depends on various satellites to estimate its global position based on the predicted probability for each such satellite that a ray extending from that satellite to the mobile device is obstructed by a building. The mobile device can predict the probabilities of building obstructions based on a digital model of the environment in which the mobile device is estimated to be. The mobile device weights the extent of uncertainty for each satellite's global positioning data based on the predicted probability of obstruction for that satellite. Using these weighted uncertainties, the mobile device selects the extents to which it relies on each satellite's global positioning data when estimating the mobile device's current global position.
    Type: Application
    Filed: September 30, 2014
    Publication date: November 5, 2015
    Inventors: Glenn D. MacGougan, Robert W. Mayor, Kumar Chhokra