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:
Jan. 19, 2010
Filed:
May. 03, 2006
Applicant:
Thomas R. Metzger, Wheatfield, NY (US);
Inventor:
Thomas R. Metzger, Wheatfield, NY (US);
Assignee:
Lockheed Martin Corp., Bethesda, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a rail track system having transition points, a locomotive having a navigation system (such as a combined inertial/GPS location system) moves along an initially known track and enters the 'halo' surrounding a track transition to begin data collection/logging to accumulate successive position information data points as the locomotive moves into, progresses through, and exits the 'halo.' The collected data for movement within the “halo” is then subject to a best fit assessment relative to the data pre-stored in the track database.