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:
Jul. 18, 1989
Filed:
Dec. 31, 1987
Applicant:
Inventors:
Jeffrey D Taft, Plum Boro, PA (US);
James F Ellison, Pittsburgh, PA (US);
Gerald A Breakey, Penn Township, Westmoreland County, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B / ; B23K / ;
U.S. Cl.
CPC ...
318577 ; 21912434 ; 901 42 ; 901 47 ;
Abstract
An image processing system uses the digital expression of the video image of a light stripe derived optically from a seam to create a 1-D signal representative of a one-pixel wide line. The target coordinates for the tool operating on the seam is converted directly into 3-D tool position and orientation from the 1-D signal. Matching with models is effected in real time by comparing symbolic attributes of the graphs built up with the 1-D signal and with standard seams. From such matching is selected the operative corner, or target for the tool.