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.

Date of Patent:
Mar. 24, 1987

Filed:

Oct. 10, 1985
Applicant:
Inventors:

Otto Stemme, Munich, DE;

Eduard Wagensonner, Aschheim, DE;

Assignee:

AGFA-Gevaert AG, Leverkusen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358214 ; 358 54 ; 358211 ; 358909 ; 358213 ;
Abstract

A method of producing a video picture of an image comprises the steps of lighting the image at a light level equal to about a predetermined small fraction of the light level necessary to produce picture-element signals of an amplitude sufficient to process. The thus lighted image is then scanned and electrooptically reduced to a succession of sets of analog picture-element signals a predetermined number N of times, the number N being equal to the inverse of the predetermined small fraction. Thus for each portion of the image there is a respective picture-element signal in each succession. The signals of each image portion are then projected onto the same portion of a light-sensitive medium to form a picture of the image thereon. This medium is capable of adding each of the signals of each set to the signals of the other sets corresponding to the same image portion.


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