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:
Nov. 23, 2004

Filed:

Apr. 25, 2001
Applicant:
Inventors:

David A. Jackson, Point Roberts, WA (US);

Stephen L. Glickman, Los Gatos, CA (US);

Hoshang Shroff, Cupertino, CA (US);

Assignee:

Snap-On Incorporated, Pleasant Prairie, WI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 ; G06K 7/00 ;
U.S. Cl.
CPC ...
G06K 9/00 ; G06K 7/00 ;
Abstract

Alignment between the wheels of a vehicle is determined using a position determination system and includes indicating wheel positions on the vehicle with targets; imaging the targets to obtain locations of the wheel positions; and calculating a relationship between the front and rear wheels. Alignment is aided by calculating rear and front wheel tracks and comparing the calculated front and rear wheel tracks to a specified range for the front and rear wheel tracks. Also, right and left wheel bases can be calculated and the calculated right and left wheel bases to can be compared a specified range for the right and left wheel bases. Measures of offset and skew can also be obtained. A computer-implemented position determination system for determining alignment between the wheels of a vehicle is disclosed.


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