The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 18, 2023

Filed:

Dec. 07, 2020
Applicant:

Spireon, Inc., Irvine, CA (US);

Inventors:

Sunil B. Marolia, Laguna Niguel, CA (US);

Shawn R. Hardesty, San Clemente, CA (US);

Wallace F. Tennelle, Irvine, CA (US);

Assignee:

Spireon, Inc., Irvine, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 22/00 (2006.01); G01S 19/14 (2010.01); G01S 19/25 (2010.01); G01S 19/10 (2010.01); G01S 19/20 (2010.01);
U.S. Cl.
CPC ...
G01C 22/00 (2013.01); G01S 19/10 (2013.01); G01S 19/14 (2013.01); G01S 19/20 (2013.01); G01S 19/252 (2013.01);
Abstract

A method for compensating for the absence of GPS data during a period of GPS signal loss in determining travel mileage of a vehicle includes: detecting vehicle motion using an accelerometer during a period of time in which a GPS tracking device is unable to determine a location of the vehicle due to loss of GPS signal; determining a first location of the vehicle corresponding to the last known GPS location data point stored in memory; determining a second location of the vehicle corresponding to a point at which the GPS signal is reacquired; and calculating the distance between the first and second locations based on a straight-line distance calculation between the first and second locations, or based on the use of geospatial mapping data to plot a roadway route between the first and second locations.


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