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:
Mar. 28, 1989
Filed:
Apr. 15, 1986
Applicant:
Inventors:
Kaoru Momose, Tokyo, JP;
Makoto Kato, Kawasaki, JP;
Tetsuo Yokoyama, Tokyo, JP;
Toshihiro Furuya, Katsuta, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ; G06F / ;
U.S. Cl.
CPC ...
382 46 ; 340709 ; 340727 ; 340734 ; 382 28 ;
Abstract
To measure a line width of a linear portion of a digital image maintaining a precision finer than a picture element, a digital linear cursor pattern represented by digital picture elements is generated, the pattern is inclined with respect to the horizontal direction by an angle which maximizes the measuring precision, and the pattern is fitted to a linear portion to be measured, to thereby measure the width of a line.