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:
Oct. 28, 2003
Filed:
Apr. 11, 2000
Ivan Bachelder, Newton, MA (US);
Karen Roberts, Natick, MA (US);
Aaron Wallack, Natick, MA (US);
William Silver, Weston, MA (US);
Edward Collins, Smithfield, RI (US);
Karen Sarachik, Newtonville, MA (US);
Cognex Corporation, Natick, MA (US);
Abstract
A machine vision method for locating a leaded electronic device, such as integrated circuit chips, includes searching the image with a template depicting only a portion—e.g., one or two “side” edges—of each of one or more of the leads expected on the device. The template can include portions representing expected leads, as well as unexpected leads or unexpected lead positions. Positive and negative weightings are applied to such portions, as appropriate. A location of the device, or of one or more of its leads, is based on the results of the search.