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. 20, 1992
Filed:
Apr. 10, 1990
Applicant:
Inventor:
Scott P Snietka, Plantsville, CT (US);
Assignee:
Gerber Systems Corporation, South Windsor, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395129 ; 395118 ; 382 16 ; 382 18 ;
Abstract
A method and apparatus used with a printed circuit board (PCB) defect detecting system generates a reference database image of the PCB having tolerances for each individual PCB feature. A transitional data base is included that has three states, black, white and gray corresponding to areas where the PCB features respectively must appear, must not appear and may or may not appear.