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. 07, 1981
Filed:
May. 12, 1980
Applicant:
Inventor:
Yasukazu Sano, Kawasaki, JP;
Assignee:
Fuji Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358106 ; 356237 ;
Abstract
The surface condition of a product being checked is determined by viewing the product with a raster-scanned television camera, or its equivalent and, on a horizontal-line-by-horizontal-line basis detecting the number of points in the video envelope which have a zero slope (a derivative of 'zero') and, from such information generating a reject signal if the number of points exceeds one.