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:
Jan. 31, 2023
Filed:
Apr. 30, 2019
Applicant:
Agfa Offset Bv, Mortsel, BE;
Inventor:
Rudolf Bartels, Mortsel, BE;
Assignee:
AGFA Offset BV, Mortsel, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 15/02 (2006.01); H04N 1/405 (2006.01); B41C 1/10 (2006.01); B41N 1/00 (2006.01); B41F 33/00 (2006.01); B41M 1/14 (2006.01); B41M 1/04 (2006.01); B41M 1/06 (2006.01);
U.S. Cl.
CPC ...
G06K 15/1881 (2013.01); B41C 1/10 (2013.01); B41F 33/0072 (2013.01); B41M 1/14 (2013.01); B41N 1/00 (2013.01); G06K 15/1836 (2013.01); H04N 1/4055 (2013.01); B41M 1/04 (2013.01); B41M 1/06 (2013.01);
Abstract
A halftone raster image, suitable for rendering a continuous-tone image, which comprises a plurality of dots, arranged according a screen ruling and screen angle. Said dots comprise (i) image pixels arranged as a first arc or as a plurality of arcs which together represent a first spiral, and (ii) non-image pixels arranged as a second arc or as a plurality of arcs which together represent a second spiral. Small displacements of the feed point of said dots away from the theoretical centre of a halftone dot, defined by said screen ruling and screen angle, enable a higher image quality and less patterns in said halftone raster image.