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.
Patent No.:
Date of Patent:
May. 09, 2017
Filed:
Nov. 19, 2013
Applicant:
General Motors Llc, Detroit, MI (US);
Inventors:
Debo Sun, West Covina, CA (US);
Curtis L. Hay, West Bloomfield, MI (US);
Assignee:
GENERAL MOTORS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/16 (2006.01); B60W 10/00 (2006.01); G01C 21/20 (2006.01);
U.S. Cl.
CPC ...
G01C 21/165 (2013.01); B60W 10/00 (2013.01); G01C 21/206 (2013.01);
Abstract
Implementations of the present invention contemplate obtaining a more accurate estimated horizontal position error (EHPE) under conditions in which the telematics unit of a vehicle cannot receive GNSS signals. In particular, the invention contemplates determining that a vehicle is entering a parking garage and obtaining a more accurate estimated horizontal position error (EHPE) of the vehicle in the parking garage when GNSS signals are unavailable.