Patent · US Active

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

US9207331B2 · kind B2 · utility

0Cited by

1References

15Claims

0Family size

Assignee

Numerex Corp. · US

Inventors

Troy E. Lanes · Belgrade, US
Robert Wachtel · Clearwater, US
Mark L. Belangee · Collegeville, US

Key dates

Filing date	Jan 4, 2013
Grant date	Dec 8, 2015
Priority date	—
Expiry date	Oct 19, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01S19/42
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A system method for improving the accuracy of a tracking device is described where the tracking device cannot achieve an accurate GPS fix due to low observability. The system and method improves accuracy determining a current position for the tracking device using incomplete information from the GPS. The current position is added to a historical table of previous position determinations and a normalized center position is calculated from the current position and previous position determinations. The position of the tracking device is inferred from the normalized center position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.