×

Determining a location of a mobile device using a multi-modal kalman filter

  • US 8,768,618 B1
  • Filed: 07/07/2013
  • Issued: 07/01/2014
  • Est. Priority Date: 05/15/2013
  • Status: Active Grant
First Claim
Patent Images

1. A method, comprising:

  • maintaining, by a mobile device, multiple approximations of a location of the mobile device, wherein each approximation comprises an estimated geographic location of the mobile device that is determined by filtering a respective subset of location estimates received by the mobile device using a respective Kalman filter, and wherein one of the multiple approximations is designated as an active approximation;

    receiving, by the mobile device, data indicating an estimate of a geographic location of the mobile device;

    based on a distance between the estimate of the geographic location and a given approximation of the multiple approximations, updating the given approximation using the estimate of the geographic location; and

    providing, by the mobile device and for display, a visual indication of an estimated geographic location associated with the active approximation.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×