Patents by Inventor Ran Waidman
Ran Waidman 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).
-
Patent number: 9779332Abstract: An apparatus and method for use in capturing image data of an output of a printing device during a print run, the method comprising capturing a first portion of image data of a first spread, capturing a second portion of image data of a second spread, wherein the location of the second portion of image data on the second spread is different from the location of the first portion of image data on the first spread, and combining the first portion with the second portion to generate oversampled image data.Type: GrantFiled: July 31, 2013Date of Patent: October 3, 2017Assignee: HP INDIGO B.V.Inventors: Tsafrir Yedid Am, Ran Waidman, Tair Atzmon
-
Patent number: 9727015Abstract: Printing by determining target color values based on first color outputs, determining current color values based on current color outputs, and calculating color compensation values to compensate for a difference between the target color values and the current color values.Type: GrantFiled: May 10, 2016Date of Patent: August 8, 2017Assignee: Hewlett-Packard Development Company, L.P.Inventors: Gal Amit, Tsafrir Yedid-Am, Eyal Shelef, Ran Waidman, Shlomo Harush
-
Publication number: 20170219978Abstract: A method includes forming a second set of printing dots on a photosensitive member by a printing dot applicator corresponding to image data of second portions of the image adjacent to first portions of the image. The second set of printing dots are formed on the photosensitive member after the first set of printing dots have been transferred from the photosensitive member. Thus, a merging of adjacent printing dots due to an electrical interaction there between on the photosensitive member is reduced.Type: ApplicationFiled: September 26, 2014Publication date: August 3, 2017Inventors: Yohanan Sivan, Ran Waidman, Lior Katz
-
Publication number: 20170043591Abstract: An apparatus to calibrate a printer. The apparatus comprises a controller to: control deposition of white printing material on media, the white printing material having an opacity of at least 55%; control deposition of non-white printing material on the white printing material; receive data for at least one sensed characteristic of the non-white printing material; and calibrate the printer using the received data for the at least one sensed characteristic of the non-white printing material.Type: ApplicationFiled: April 25, 2014Publication date: February 16, 2017Inventors: Ran WAIDMAN, Sasi MOALEM, Gregory BRAVERMAN, Eyal SHELEF, Shlomo HARUSH
-
Publication number: 20160277629Abstract: A printer (300) is disclosed. The printer has two scanners (336, 338) in the paper path of the printer located after the print zone (346). The two scanners are spaced appart from each other by a known distance A and overlap each other in a direction perpendicular to the media axis of travel. The two scanners capture a first and second image of the media.Type: ApplicationFiled: November 22, 2013Publication date: September 22, 2016Applicant: HEWLETT-PACKARD INDIGO B.V.Inventors: Ran Waidman, Sagi Refael, Lior Katz
-
Publication number: 20160252862Abstract: Printing by determining target color values based on first color outputs, determining current color values based on current color outputs, and calculating color compensation values to compensate a difference between the target color values and the current color values.Type: ApplicationFiled: May 10, 2016Publication date: September 1, 2016Inventors: Gal Amit, Tsafrir Yedid-Am, Eyal Shelef, Ran Waidman, Shlomo Harush
-
Publication number: 20160189014Abstract: An apparatus and method for use in capturing image data of an output of a printing device during a print run, the method comprising capturing a first portion of image data of a first spread, capturing a second portion of image data of a second spread, wherein the location of the second portion of image data on the second spread is different from the location of the first portion of image data on the first spread, and combining the first portion with the second portion to generate oversampled image data.Type: ApplicationFiled: July 31, 2013Publication date: June 30, 2016Applicant: Hewlett-Packard Indigo, B.V.Inventors: Tsafrir YEDID AM, Ran WAIDMAN, Tair ATZMON
-
Patent number: 9292769Abstract: In an example implementation, a method of iterative calibration includes, in a first iteration, measuring first values of a calibration parameter, and determining first corrections for the measured first values. The method includes, in a next iteration, measuring next values of the calibration parameter that incorporate the first corrections. The first corrections are omitted from the next iteration measurements to provide pseudo iteration measurements, and the first iteration measurements are averaged with the pseudo iteration measurements. Second corrections are then determined based on the averaging.Type: GrantFiled: September 11, 2014Date of Patent: March 22, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Tsafrir Yedid Am, Dmitry Iofe, Ran Waidman
-
Publication number: 20160078324Abstract: In an example implementation, a method of iterative calibration includes, in a first iteration, measuring first values of a calibration parameter, and determining first corrections for the measured first values. The method includes, in a next iteration, measuring next values of the calibration parameter that incorporate the first corrections. The first corrections are omitted from the next iteration measurements to provide pseudo iteration measurements, and the first iteration measurements are averaged with the pseudo iteration measurements. Second corrections are then determined based on the averaging.Type: ApplicationFiled: September 11, 2014Publication date: March 17, 2016Inventors: Tsafrir Yedid Am, Dmitry Iofe, Ran Waidman
-
Publication number: 20150138571Abstract: In one embodiment, a processor-readable medium stores code representing instructions that when executed by a processor cause the processor to print a print job, and determine target color data for each sheet of the print job while printing the job. The instructions further cause the processor to continually save the target color data to a server for each sheet of the print job as each sheet is printed.Type: ApplicationFiled: April 12, 2012Publication date: May 21, 2015Inventors: Gal Amit, Ran Waidman, Tsafrir Yedid Am
-
Patent number: 9020371Abstract: An embodiment of this disclosure involves printing color outputs on sheets, reading the color outputs and adjusting a calibration parameter.Type: GrantFiled: February 28, 2011Date of Patent: April 28, 2015Assignee: Hewlett-Packard Development Company, L.P.Inventors: Gal Amit, Ran Waidman, Shlomo Harush
-
Patent number: 8929614Abstract: A method for identifying a pair of genuine red eye artifacts in a captured image includes the steps of determining the presence of a face in the captured image, substantially encompassing the face within a shape, and determining the presence of three or more candidate red eye artifacts within the shape. The method continues with measuring the distance from an edge of the shape to each of the three or more candidate red eye artifacts and identifying, as genuine red eye artifacts, two candidate red eye artifacts of the three or more candidate red eye artifacts that are within a predetermined vertical distance from the edge of the shape.Type: GrantFiled: October 19, 2009Date of Patent: January 6, 2015Assignee: Hewlett-Packard Development Company, L.P.Inventors: Boris Oicherman, Ran Waidman, Matthew Gaubatz, Shlomo Harush
-
Publication number: 20130336666Abstract: Printing by determining target color values based on first color outputs, determining current color values based on current color outputs, and calculating color compensation values to compensate for a difference between the target color values and the current color values.Type: ApplicationFiled: February 28, 2011Publication date: December 19, 2013Inventors: Gal Amit, Tsafrir Yedid-Am, Eyal Shelef, Ran Waidman, Shlomo Harush
-
Publication number: 20130330092Abstract: An embodiment of this disclosure involves printing color outputs on sheets, reading the color outputs and adjusting a calibration parameter.Type: ApplicationFiled: February 28, 2011Publication date: December 12, 2013Applicant: Hewlett-Packard Development Company, L.P.Inventors: Gal Amit, Ran Waidman, Shlomo Harush
-
Patent number: 8469479Abstract: In one embodiment, a media is advanced in the process direction to cause a plurality of fiducials to successively appear within a sensor's focal width. Each fiducial includes a target and a background, with the target superimposed to the background. Each target has a substantially same target width, a substantially same optical density, and a position at a distinct distance from an edge of the media. Each background has an optical density less than the optical density of the targets and greater than an optical density of the media. An optical density for each fiducial is read utilizing the sensor. The target the sensor is most aligned with is discerned by identifying an identified fiducial with the highest-read optical density. Utilizing data indicative of a position of the discerned target relative to a desired position, the sensor is caused to move to the desired position.Type: GrantFiled: November 15, 2010Date of Patent: June 25, 2013Assignee: Hewlett-Packard Development Company, L.P.Inventors: Gal Amit, Ran Waidman, Oren Bengigi
-
Patent number: 8390661Abstract: A method of calibrating an electrophotographic printer (30), the printer configured with a plurality of light settings, each light setting arranged to produce a different element type, the method comprising: determining (S10) a first light level required to print a first element type by applying a proportional change to a first initial light setting; and determining (S30) a second light level required to print a second element type by applying substantially the same proportional change to a second initial light setting.Type: GrantFiled: September 25, 2008Date of Patent: March 5, 2013Assignee: Hewlett-Packard Indigo B.V.Inventors: Ran Waidman, Eyal Shelef, Shlomo Harush
-
Patent number: 8339690Abstract: A method of enabling preparing a printing system calibrated with a first halftone screen for printing with a second halftone screen. The calibration is represented by calibration data. Calibration data for the second halftone screen is produced from the existing calibration data of the first halftone screen without resorting to previous calibration data for the second halftone screen, based on correlation data which represent a first-order correlation between the halftone screens.Type: GrantFiled: April 30, 2007Date of Patent: December 25, 2012Assignee: Hewlett-Packard Indigo B.V.Inventors: Yohanan Sivan, Shlomo Harush, Ran Waidman, Eyal Shelef, Gregory Braverman
-
Publication number: 20120134546Abstract: A method for identifying a pair of genuine red eye artifacts in a captured image includes the steps of determining the presence of a face in the captured image, substantially encompassing the face within a shape, and determining the presence of three or more candidate red eye artifacts within the shape. The method continues with measuring the distance from an edge of the shape to each of the three or more candidate red eye artifacts and identifying, as genuine red eye artifacts, two candidate red eye artifacts of the three or more candidate red eye artifacts that are within a predetermined vertical distance from the edge of the shape.Type: ApplicationFiled: October 19, 2009Publication date: May 31, 2012Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Boris Oicherman, Ran Waidman, Matthew Gaubatz, Shlomo Harush
-
Publication number: 20120120143Abstract: In one embodiment, a media is advanced in the process direction to cause a plurality of fiducials to successively appear within a sensor's focal width. Each fiducial includes a target and a background, with the target superimposed to the background. Each target has a substantially same target width, a substantially same optical density, and a position at a distinct distance from an edge of the media. Each background has an optical density less than the optical density of the targets and greater than an optical density of the media. An optical density for each fiducial is read utilizing the sensor. The target the sensor is most aligned with is discerned by identifying an identified fiducial with the highest-read optical density. Utilizing data indicative of a position of the discerned target relative to a desired position, the sensor is caused to move to the desired position.Type: ApplicationFiled: November 15, 2010Publication date: May 17, 2012Inventors: Gal Amit, Ran Waidman, Oren Bengigi
-
Publication number: 20100074639Abstract: A method of calibrating an electrophotographic printer (30), the printer configured with a plurality of light settings, each light setting arranged to produce a different element type, the method comprising: determining (S10) a first light level required to print a first element type by applying a proportional change to a first initial light setting; and determining (S30) a second light level required to print a second element type by applying substantially the same proportional change to a second initial light setting.Type: ApplicationFiled: September 25, 2008Publication date: March 25, 2010Inventors: Ran WAIDMAN, Eyal Shelef, Shlomo Harush