Patents by Inventor Ram Dagan
Ram Dagan 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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Publication number: 20240064260Abstract: In an example, a method includes obtaining, by at least one processor, a first halftone screen tile having a first halftone pattern. In some examples, the method further comprises obtaining a second halftone screen tile having a second halftone pattern. The method may include determining a halftone screen having a predetermined spatial arrangement of the first and second halftone screen tiles wherein the relative placement of the first and second halftone screen tiles in the predetermined spatial arrangement provides a signature for the halftone screen which when applied to image data provides a printed output in which the signature is discernible.Type: ApplicationFiled: February 11, 2021Publication date: February 22, 2024Applicant: Hewlett-Packard Development Company, L.P.Inventors: Tal FRANK, Orel BAT MOR, Shani GAT, Gideon AMIR, Itamar ROTH, Ram DAGAN
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Publication number: 20220150379Abstract: A method is described in which a length of an image is compared with a threshold associated to a print device. The image is subdivided into a sequence of print frames. Each print frame has length equal to or less than the threshold. A stitching operation is performed on at least two consecutive print frames. The print device is controlled to sequentially print the at least two stitched consecutive print frames.Type: ApplicationFiled: January 24, 2022Publication date: May 12, 2022Inventors: Noam Shaham, Ram Dagan
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Patent number: 11301178Abstract: A method is described in which a length of an image is compared with a threshold associated to a print device. The image is subdivided into a sequence of print frames. Each print frame has length equal to or less than the threshold. A stitching operation is performed on at least two consecutive print Compare a length of an image with a threshold frames. The print device is controlled to sequentially print the at least two stitched consecutive print frames.Type: GrantFiled: September 16, 2016Date of Patent: April 12, 2022Assignee: HP Indigo B.V.Inventors: Noam Shaham, Ram Dagan
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Publication number: 20210279011Abstract: A method is described in which a length of an image is compared with a threshold associated to a print device. The image is subdivided into a sequence of print frames. Each print frame has length equal to or less than the threshold. A stitching operation is performed on at least two consecutive print Compare a length of an image with a threshold frames. The print device is controlled to sequentially print the at least two stitched consecutive print frames.Type: ApplicationFiled: September 16, 2016Publication date: September 9, 2021Applicant: HP INDIGO B.V.Inventors: Noam Shaham, Ram Dagan
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Patent number: 10638019Abstract: Examples analyze a digital image to determine an amount of high-frequencies corresponding to each pixel of the digital image based at least in part on gradients corresponding to a pixel neighborhood of each pixel. Examples analyze the digital image to determine a degree of randomness for each pixel based at least in part on the corresponding gradients. Examples generate an activity mask for the digital image based at least in part on the amount of high-frequencies and the degree of randomness corresponding to each pixel. Examples process the pixels of the digital image by performing gray component replacement to generate a color transformed image based at least in part on the activity mask.Type: GrantFiled: June 26, 2019Date of Patent: April 28, 2020Assignee: HP Indigo B.V.Inventors: Noam Shaham, Liron Itan, Mirta Perlman, Oren Haik, Oded Perry, Tal Frank, Ram Dagan, Gregory Braverman
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Patent number: 10560604Abstract: An example system includes a color engine to separate an image into a plurality of color components. The system also includes a halftone engine to generate a plurality of halftone images based on the plurality of color components and a plurality of halftone screens. For each halftone screen, the halftone cell centers for that halftone screen occur at regular or semi-regular distances relative to a dot pitch. The plurality of halftone screens forms a high frequency moire pattern when the halftone screens are overlaid on each other. Each of the halftone screens have a granularity metric less than a threshold.Type: GrantFiled: September 29, 2015Date of Patent: February 11, 2020Assignee: HP Indigo B.V.Inventors: Tal Frank, Oren Haik, Dror Kella, Ram Dagan, Marina Limonov
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Publication number: 20190320093Abstract: Examples analyze a digital image to determine an amount of high-frequencies corresponding to each pixel of the digital image based at least in part on gradients corresponding to a pixel neighborhood of each pixel. Examples analyze the digital image to determine a degree of randomness for each pixel based at least in part on the corresponding gradients. Examples generate an activity mask for the digital image based at least in part on the amount of high-frequencies and the degree of randomness corresponding to each pixel. Examples process the pixels of the digital image by performing gray component replacement to generate a color transformed image based at least in part on the activity mask.Type: ApplicationFiled: June 26, 2019Publication date: October 17, 2019Inventors: Noam Shaham, Liron Itan, Mirta Perlman, Oren Haik, Oded Perry, Tal Frank, Ram Dagan, Gregory Braverman
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Patent number: 10356283Abstract: Examples analyze a digital image to determine an amount of high-frequencies corresponding to each pixel of the digital image based at least in part on gradients corresponding to a pixel neighborhood of each pixel. Examples analyze the digital image to determine a degree of randomness for each pixel based at least in part on the corresponding gradients. Examples generate an activity mask for the digital image based at least in part on the amount of high-frequencies and the degree of randomness corresponding to each pixel. Examples process the pixels of the digital image by performing gray component replacement to generate a color transformed image based at least in part on the activity mask.Type: GrantFiled: July 24, 2015Date of Patent: July 16, 2019Assignee: HP Indigo B.V.Inventors: Noam Shaham, Liron Itan, Mirta Perlman, Oren Haik, Oded Perry, Tal Framk, Ram Dagan, Gregory Braverman
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Patent number: 10306108Abstract: A halftone comprises a first halftone screen and a second halftone screen. The first halftone screen comprises a first plurality of amplitude modulated dots arranged according to a first plurality of rows, the first plurality of rows being orientated according to a first direction and comprising a first dot spacing. The second halftone screen comprises a second plurality of amplitude modulated dots arranged according to a second plurality of rows, the second plurality of row being orientated in a second direction and comprising a second dot spacing. The first direction and the second direction define an angle of 45 degrees or less and a ratio of the second dot spacing to the first dot spacing is less than one.Type: GrantFiled: July 19, 2018Date of Patent: May 28, 2019Assignee: HP Indigo B.V.Inventors: Tal Frank, Dror Kella, Boaz Tagansky, Oren Haik, Yotam Ben-Shoshan, Marina Limonov, Ram Dagan
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Publication number: 20180324322Abstract: A halftone comprises a first halftone screen and a second halftone screen. The first halftone screen comprises a first plurality of amplitude modulated dots arranged according to a first plurality of rows, the first plurality of rows being orientated according to a first direction and comprising a first dot spacing. The second halftone screen comprises a second plurality of amplitude modulated dots arranged according to a second plurality of rows, the second plurality of row being orientated in a second direction and comprising a second dot spacing. The first direction and the second direction define an angle of 45 degrees or less and a ratio of the second dot spacing to the first dot spacing is less than one.Type: ApplicationFiled: July 19, 2018Publication date: November 8, 2018Applicant: HP INDIGO B.V.Inventors: Tal Frank, Dror Kella, Boaz Tagansky, Oren Haik, Yotam Ben-Shoshan, Marina Limonov, Ram Dagan
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Publication number: 20180270394Abstract: An example system includes a color engine to separate an image into a plurality of color components. The system also includes a halftone engine to generate a plurality of halftone images based on the plurality of color components and a plurality of halftone screens. For each halftone screen, the halftone cell centers for that halftone screen occur at regular or semi-regular distances relative to a dot pitch. The plurality of halftone screens forms a high frequency moire pattern when the halftone screens are overlaid on each other. Each of the halftone screens have a granularity metric less than a threshold.Type: ApplicationFiled: September 29, 2015Publication date: September 20, 2018Applicant: HP INDIGO B.V.Inventors: Tal FRANK, Oren HAIK, Dror KELLA, Ram DAGAN, Marina LIMONOV
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Patent number: 10051153Abstract: A halftone comprises a first halftone screen and a second halftone screen. The first halftone screen comprises a first plurality of amplitude modulated dots arranged according to a first plurality of rows, the first plurality of rows being orientated according to a first direction and comprising a first dot spacing. The second halftone screen comprises a second plurality of amplitude modulated dots arranged according to a second plurality of rows, the second plurality of row being orientated in a second direction and comprising a second dot spacing. The first direction and the second direction define an angle of 45 degrees or less and a ratio of the second dot spacing to the first dot spacing is less than one.Type: GrantFiled: February 1, 2017Date of Patent: August 14, 2018Assignee: HP Indigo B.V.Inventors: Tal Frank, Dror Kella, Boaz Tagansky, Oren Haik, Yotam Ben-Shoshan, Marina Limonov, Ram Dagan
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Publication number: 20180220039Abstract: A halftone comprises a first halftone screen and a second halftone screen. The first halftone screen comprises a first plurality of amplitude modulated dots arranged according to a first plurality of rows, the first plurality of rows being orientated according to a first direction and comprising a first dot spacing. The second halftone screen comprises a second plurality of amplitude modulated dots arranged according to a second plurality of rows, the second plurality of row being orientated in a second direction and comprising a second dot spacing. The first direction and the second direction define an angle of 45 degrees or less and a ratio of the second dot spacing to the first dot spacing is less than one.Type: ApplicationFiled: February 1, 2017Publication date: August 2, 2018Inventors: Tal Frank, Dror Kella, Boaz Tagansky, Oren Haik, Yotam Ben-Shoshan, Marina Limonov, Ram Dagan
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Publication number: 20180124286Abstract: Examples analyze a digital image to determine an amount of high-frequencies corresponding to each pixel of the digital image based at least in part on gradients corresponding to a pixel neighborhood of each pixel. Examples analyze the digital image to determine a degree of randomness for each pixel based at least in part on the corresponding gradients. Examples generate an activity mask for the digital image based at least in part on the amount of high-frequencies and the degree of randomness corresponding to each pixel. Examples process the pixels of the digital image by performing gray component replacement to generate a color transformed image based at least in part on the activity mask.Type: ApplicationFiled: July 24, 2015Publication date: May 3, 2018Applicant: HP INDIGO B.V.Inventors: Noam Shaham, Liron Itan, Mirta Perlman, Oren Haik, Oded Perry, Tal Framk, Ram Dagan, Gregory Braverman
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Patent number: 9591187Abstract: A color input image comprising a plurality of pixels, each pixels encoded in RGB color space, is processed to convert the RGB pixels to another color space domain for printing the color input image. The number of colors within a cell of the input image is reduced. Each cell comprises an N×M array of pixels and the number of colors is reduced to a maximum of b source colors, wherein b is a positive integer equal to or greater than 2. Each of the resulting colors of each cell is calibrated to generate a printable color. The cells are then processed to convert the pixels of each cell into another color space, for example, to determine ink vectors, in another color space, for each calibrated color.Type: GrantFiled: April 29, 2013Date of Patent: March 7, 2017Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Jorge Martinez de Salinas Vazquez, Lluis Abello Rosello, Joan Vidal Fortia, Noam Shaham, Ram Dagan, Gideon Amir
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Patent number: 9588715Abstract: Access requests (12) that are to be scheduled to an information storage system (18) include realtime access requests and non-realtime access requests. The realtime access requests are associated with respective completion deadlines. Pending ones of the access requests (12) that are awaiting submission to the information storage system (18) are received. Outstanding ones of the access requests (12) that have been submitted to the information storage system (18) and are awaiting completion by the information storage system (18) are tracked. The pending access requests are submitted to the information storage system (18) based on rules that prioritize the submission of pending access requests such that realtime ones of the pending access requests and realtime ones of the outstanding access requests will be serviced by the information storage system (18) by their associated completion deadlines.Type: GrantFiled: June 3, 2009Date of Patent: March 7, 2017Assignee: Hewlett-Packard Development Company, L.P.Inventors: Carl Staelin, Gidi Amir, Ram Dagan, David Ben Ovadia
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Patent number: 9392294Abstract: Color image data is compressed by determining the number of colors within a cell of an input image, each cell comprising an N×M array of pixels; in response to determining that the number of colors is greater than a first predetermined threshold, compress the cell using lossy compression; and in response to determining that the number of colors is less than the first predetermined threshold, reduce the number of colors.Type: GrantFiled: July 7, 2015Date of Patent: July 12, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Noam Shaham, Gideon Amir, Ram Dagan, Michael Melamed
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Publication number: 20160080612Abstract: A color input image comprising a plurality of pixels, each pixels encoded in RGB color space, is processed to convert the RGB pixels to another color space domain for printing the color input image. The number of colors within a cell of the input image is reduced. Each cell comprises an N×M array of pixels and the number of colors is reduced to a maximum of b source colors, wherein b is a positive integer equal to or greater than 2. Each of the resulting colors of each cell is calibrated to generate a printable color. The cells are then processed to convert the pixels of each cell into another color space, for example, to determine ink vectors, in another color space, for each calibrated color.Type: ApplicationFiled: April 29, 2013Publication date: March 17, 2016Inventors: Jorge Martinez de Salinas Vazquez, Lluis Abello Rosello, Joan Vidal Fortia, Noam Shaham, Ram Dagan, Gideon Amir
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Publication number: 20150312577Abstract: Color image data is compressed by determining the number of colors within a cell of an input image, each cell comprising an N×M array of pixels; in response to determining that the number of colors is greater than a first predetermined threshold, compress the cell using lossy compression; and in response to determining that the number of colors is less than the first predetermined threshold, reduce the number of colors.Type: ApplicationFiled: July 7, 2015Publication date: October 29, 2015Inventors: Noam SHAHAM, Gideon AMIR, Ram DAGAN, Michael MELAMED
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Patent number: 9113115Abstract: Color image data is compressed by determining the number of colors within a cell of an input image, each cell comprising an N×M array of pixels; in response to determining that the number of colors is greater than a first predetermined threshold, compress the cell using lossy compression; and in response to determining that the number of colors is less than the first predetermined threshold, reduce the number of colors.Type: GrantFiled: July 24, 2012Date of Patent: August 18, 2015Assignee: Hewlett-Packard Indigo B.V.Inventors: Noam Shaham, Gideon Amir, Ram Dagan, Michael Melamed