×

Using statistical analysis to infer an accurate GPS location for use in tracking devices

  • US 9,207,331 B2
  • Filed: 01/04/2013
  • Issued: 12/08/2015
  • Est. Priority Date: 01/04/2012
  • Status: Active Grant
First Claim
Patent Images

1. A method for improving the accuracy of a tracking device where the tracking device cannot achieve a complete fix using a location determination mechanism, the method comprising:

  • determining a current position for the tracking device using incomplete information from the location determination mechanism;

    adding the current position to a historical table of previous position determinations;

    calculating a normalized center position from the current position and previous position determinations;

    inferring the position of the tracking device from the normalized center position;

    detecting the movement of the tracking device using an inertia sensor; and

    clearing the historical table of previous positions in response to the detection of movement.

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