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. 17, 1990
Filed:
Dec. 23, 1988
Applicant:
Inventors:
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
382 47 ; 382-8 ; 382 30 ;
Abstract
A pattern inspection apparatus for accurately inspecting a pattern such that design image data is processed in correspondence to resizing of a pattern to be inspected. Image data corresponding to an image area of a predetermined size is extracted from input information represented by binary logic levels and representing a pattern to be resized. Template circuits add additional data of a predetermined logic level to a predetermined pixel position when a distribution of the image logic levels included in the extracted image data is a predetermined distribution. Thus, the additional data is added to the pattern image data to resize the pattern.