Patents by Inventor Rudolf Bartels
Rudolf Bartels has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11915072Abstract: A halftone raster image, suitable for rendering a continuous-tone image, which comprises a plurality of regularly tiled spiral dots. Said spiral dots comprise (i) image pixels arranged as a first arc (200) or as a plurality of arcs which together represent a first spiral (100), and (ii) non-image pixels arranged as a second arc (201) or as a plurality of arcs which together represent a second spiral (101), wherein neighbour halftone dots from said plurality of regularly tiled halftone dots represent a double spiral or triple spiral.Type: GrantFiled: April 27, 2020Date of Patent: February 27, 2024Assignee: Agfa Offset BVInventor: Rudolf Bartels
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Patent number: 11687739Abstract: A method to encode and decode a digital fingerprint code by an identification encoder and an identification decoder wherein the digital fingerprint code includes a plurality of N-bit data embedded on a set of curves by changed thicknesses in the curves.Type: GrantFiled: December 11, 2018Date of Patent: June 27, 2023Assignee: AGFA Offset BVInventor: Rudolf Bartels
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Patent number: 11667115Abstract: A halftone raster image suitable for rendering a continuous-tone image includes a plurality of spiral dots. The spiral dots include image pixels arranged as a first arc or as a plurality of arcs which together represent a first spiral, and non-image pixels arranged as a second arc or as a plurality of arcs which together represent a second spiral. The spiral dots enable a controlled spreading of the ink within the dot, resulting in a higher image quality, ink saving, and faster drying.Type: GrantFiled: October 23, 2018Date of Patent: June 6, 2023Assignee: AGFA Offset BVInventor: Rudolf Bartels
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Patent number: 11568189Abstract: 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.Type: GrantFiled: April 30, 2019Date of Patent: January 31, 2023Assignee: AGFA Offset BVInventor: Rudolf Bartels
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Publication number: 20220256053Abstract: A method of digital halftoning a continuous tone image into a halftone raster image having halftone cells wherein each halftone cell has a shape; wherein the method comprises the step generating a halftone dot in said halftone cell with a threshold array for determining non-image pixels and image pixels in said halftone cell and wherein said non-image pixels represent a first closed contour and image pixels represent a second closed contour; and wherein said first closed contour and/or second closed contour has a morphologic image processed shape from the shape of said halftone cell and wherein the halftone cells are arranged according to a periodic tessellation using a tile wherein each halftone cell has one or more edges which is not straight.Type: ApplicationFiled: June 4, 2020Publication date: August 11, 2022Applicant: AGFA NVInventor: Rudolf Bartels
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Publication number: 20220230031Abstract: A raster image processor (RIP) for digital binary halftoning a continuous tone image (CT) by a threshold tile (TT) into a halftone raster image (RT) for a printing device capable of printing on a plurality of substrates (S1, S2, . . . , SM); wherein said processor comprises an input field in which information regarding a substrate is to be used; a memory having stored thereon a plurality of threshold tiles (TT1, TT2, . . . , TTN) for generating regularly tiled halftone dots; and a threshold selector which is capable to select said threshold tile (TT) of said plurality of threshold tiles (TT1, TT2, . . . , TTN) based on information supplied to the input field.Type: ApplicationFiled: April 29, 2020Publication date: July 21, 2022Applicant: Agfa NVInventor: Rudolf Bartels
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Publication number: 20220215213Abstract: A halftone raster image, suitable for rendering a continuous-tone image, which comprises a plurality of regularly tiled spiral dots. Said spiral dots comprise (i) image pixels arranged as a first arc (200) or as a plurality of arcs which together represent a first spiral (100), and (ii) non-image pixels arranged as a second arc (201) or as a plurality of arcs which together represent a second spiral (101), wherein neighbour halftone dots from said plurality of regularly tiled halftone dots represent a double spiral or triple spiral.Type: ApplicationFiled: April 27, 2020Publication date: July 7, 2022Applicant: Agfa NVInventor: Rudolf Bartels
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Publication number: 20220111632Abstract: A method of reproducing a continuous-tone image with a printing press comprises the step of making a printing plate having a halftone raster image comprising regularly tiled halftone cells which consist of a grid of image pixels and non-image pixels; the halftone cells are obtained by digital halftoning with a single threshold array and at least a portion of the halftone cells in the raster image comprise multiple image clusters, image clusters being defined as mutually separated groups of more than 4 adjacent image pixels; the image clusters allow to obtain a printed image of the same image density with less ink than with conventional screens wherein the image pixels are grouped into a single cluster.Type: ApplicationFiled: April 30, 2019Publication date: April 14, 2022Inventor: Rudolf Bartels
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Publication number: 20210370661Abstract: A halftone raster image suitable for rendering a continuous-tone image includes a plurality of spiral dots. The spiral dots include image pixels arranged as a first arc or as a plurality of arcs which together represent a first spiral, and non-image pixels arranged as a second arc or as a plurality of arcs which together represent a second spiral. The spiral dots enable a controlled spreading of the ink within the dot, resulting in a higher image quality, ink saving, and faster drying.Type: ApplicationFiled: October 23, 2018Publication date: December 2, 2021Inventor: Rudolf BARTELS
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Publication number: 20210295123Abstract: 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.Type: ApplicationFiled: April 30, 2019Publication date: September 23, 2021Inventor: Rudolf Bartels
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Patent number: 10710393Abstract: A method for manufacturing a security document including a security pattern generation method includes the steps of selecting a bounding region, an image object, and a raster image or a function; cutting the image object into image object partitions; and repeating the image object as a pattern, preferably a lattice pattern, in the bounding region wherein each of the image object partitions of an image object is transformed depending on the position area of the image object in the lattice pattern and the rank of the image object partition.Type: GrantFiled: June 3, 2019Date of Patent: July 14, 2020Assignee: AGFA NVInventor: Rudolf Bartels
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Patent number: 10471759Abstract: A method for manufacturing a security document including a security pattern generation method includes the steps of selecting a bounding region, an image object, and a raster image or a function; cutting the image object into image object partitions; and repeating the image object as a pattern, preferably a lattice pattern, in the bounding region wherein each of the image object partitions of an image object is transformed depending on the position area of the image object in the lattice pattern and the rank of the image object partition.Type: GrantFiled: May 9, 2017Date of Patent: November 12, 2019Assignee: AGFA NVInventor: Rudolf Bartels
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Patent number: 10453230Abstract: A security pattern generation method includes generating a plurality of draw instructions to define a plane filling line pattern, wherein the plane filling line pattern includes a repeating sub-pattern that defines a line by a sequence of draw instructions, and searching the sequence of draw instructions in the plurality of draw instructions and, if found, overlaying the searched sequence of draw instructions by a graphic object that is scaled to fit and scaled between the two distinct end points of the line.Type: GrantFiled: March 8, 2016Date of Patent: October 22, 2019Assignee: AGFA NVInventor: Rudolf Bartels
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Publication number: 20190299701Abstract: A method for manufacturing a security document including a security pattern generation method includes the steps of selecting a bounding region, an image object, and a raster image or a function; cutting the image object into image object partitions; and repeating the image object as a pattern, preferably a lattice pattern, in the bounding region wherein each of the image object partitions of an image object is transformed depending on the position area of the image object in the lattice pattern and the rank of the image object partition.Type: ApplicationFiled: June 3, 2019Publication date: October 3, 2019Inventor: Rudolf BARTELS
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Publication number: 20190114463Abstract: A method to encode and decode a digital fingerprint code by an identification encoder and an identification decoder wherein the digital fingerprint code includes a plurality of N-bit data embedded on a set of curves by changed thicknesses in the curves.Type: ApplicationFiled: December 11, 2018Publication date: April 18, 2019Inventor: Rudolf BARTELS
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Patent number: 10242246Abstract: A method to encode and decode a digital fingerprint code by an identification encoder and an identification decoder wherein the digital fingerprint code includes a plurality of N-bit data embedded on a set of curves by changed thicknesses in the curves.Type: GrantFiled: October 26, 2017Date of Patent: March 26, 2019Assignee: AGFA NVInventor: Rudolf Bartels
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Publication number: 20180046845Abstract: A method to encode and decode a digital fingerprint code by an identification encoder and an identification decoder wherein the digital fingerprint code includes a plurality of N-bit data embedded on a set of curves by changed thicknesses in the curves.Type: ApplicationFiled: October 26, 2017Publication date: February 15, 2018Inventor: Rudolf BARTELS
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Publication number: 20180040149Abstract: A security pattern generation method includes generating a plurality of draw instructions to define a plane filling line pattern, wherein the plane filling line pattern includes a repeating sub-pattern that defines a line by a sequence of draw instructions, and searching the sequence of draw instructions in the plurality of draw instructions and, if found, overlaying the searched sequence of draw instructions by a graphic object that is scaled to fit and scaled between the two distinct end points of the line.Type: ApplicationFiled: March 8, 2016Publication date: February 8, 2018Inventor: Rudolf BARTELS
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Patent number: 9830500Abstract: A method to encode and decode a digital fingerprint code by an identification encoder and an identification decoder wherein the digital fingerprint code includes a plurality of N-bit data embedded on a set of curves by changed thicknesses in the curves.Type: GrantFiled: March 17, 2015Date of Patent: November 28, 2017Assignee: AGFA GRAPHICS NVInventor: Rudolf Bartels
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Publication number: 20170326899Abstract: A method for manufacturing a security document including a security pattern generation method includes the steps of selecting a bounding region, an image object, and a raster image or a function; cutting the image object into image object partitions; and repeating the image object as a pattern, preferably a lattice pattern, in the bounding region wherein each of the image object partitions of an image object is transformed depending on the position area of the image object in the lattice pattern and the rank of the image object partition.Type: ApplicationFiled: May 9, 2017Publication date: November 16, 2017Inventor: Rudolf BARTELS