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:
Dec. 04, 1990
Filed:
Mar. 23, 1981
Applicant:
Inventor:
Benito Sciarretta, Turin, IT;
Assignee:
Dr. Ing. Rudolf Hell GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04F / ;
U.S. Cl.
CPC ...
358447 ; 358461 ; 358474 ;
Abstract
A method for graving printing forms using rastered masters by means of a scanning system which can be adjusted in focus. The signal supplied by the scanner after processing in an electronic computer controls a graving system so as to scan rastered originals. The scanning system is placed out of focus and the loss of image information caused by placing it out-of-focus is compensated by means of an electronic out-of-focus mask.