Patents by Inventor Nikita Gurudath
Nikita Gurudath 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: 20210183036Abstract: Systems and methods are provided for. One embodiment is a system that includes an interface configured to receive an image of media printed on with print data, and memory configured to store defect reference data of nozzles belonging to printheads of a printer. The system also includes a print defect controller configured to detect a nozzle defect in the image based on a comparison of the image with the print data, and to determine a type of the nozzle defect based on a comparison of the nozzle defect with the defect reference data.Type: ApplicationFiled: December 12, 2019Publication date: June 17, 2021Applicant: Ricoh Company, Ltd.Inventors: Nikita Gurudath, Scott R. Johnson, Nathan Young, Ziling Zhang
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Patent number: 10990863Abstract: A system is disclosed. The system at least one physical memory device to store ink estimation logic and one or more processors coupled with the at least one physical memory device, to execute the ink estimation logic to receive a histogram for each of a plurality of color planes, receive uncalibrated ink deposition data for a printing system, perform a direct conversion of the uncalibrated ink deposition data to generate first calibrated ink deposition data and generate estimated ink usage data for each of the plurality of color planes based on the histograms and the first calibrated ink deposition data.Type: GrantFiled: February 28, 2020Date of Patent: April 27, 2021Assignee: Ricoh Company, Ltd.Inventors: Mikel Stanich, Nikita Gurudath
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Patent number: 10902304Abstract: A system is disclosed. The system at least one physical memory device to store monitoring logic and one or more processors coupled with the at least one physical memory device, to execute the monitoring logic to receive a first and a second ink deposition data representing an output ink amount versus an input digital count for each of a plurality of color planes, generate first optical density (OD) response data for each of the plurality of color planes based on the first ink deposition data, wherein the first OD response data represents a first OD value versus the input digital count, generate second OD response data for each of the plurality of color planes based on the second ink deposition data, determine whether a difference between the first OD response data and the second OD response data exceeds a predetermined threshold and transmit a signal upon a determination that the difference between the first OD response data and the second OD response data exceeds the predetermined threshold.Type: GrantFiled: February 28, 2020Date of Patent: January 26, 2021Assignee: Ricoh Company, Ltd.Inventors: Mikel Stanich, Nikita Gurudath
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Publication number: 20200269573Abstract: A system is disclosed. The system includes at least one physical memory device to store medium classification logic and one or more processors coupled with the at least one physical memory device to execute the medium classification logic to receive optical density (OD) measurement data corresponding to application of a halftone pattern using ink on a print medium in a printing system, receive ink deposition measurement data corresponding to application of the halftone pattern using the ink in a printing system, determine a set of distribution function parameters based on the OD measurement data and the ink deposition measurement data, apply the set of distribution function parameters to machine learning logic trained to classify the print medium and classify the print medium as a first of a plurality of print medium categories based on the machine learning logic.Type: ApplicationFiled: February 27, 2019Publication date: August 27, 2020Applicant: Ricoh Company, Ltd.Inventors: Juan Lin, Nikita Gurudath, Mikel John Stanich
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Publication number: 20200274991Abstract: A printing system is disclosed. The printing system includes at least one physical memory device to store halftone calibration logic and one or more processors coupled with the at least one physical memory device to execute the halftone calibration logic determine an uncalibrated deposition distribution for each of a plurality of pel forming elements, determine a calibrated deposition distribution for each of the plurality of pel forming elements and determine calibration values for each of the plurality of pel forming elements.Type: ApplicationFiled: February 27, 2019Publication date: August 27, 2020Applicant: Ricoh Company, Ltd.Inventors: Mikel Stanich, Nikita Gurudath, Walter F. Kailey, Larry M. Ernst
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Patent number: 10757270Abstract: A system is disclosed. The system at least one physical memory device to store ink estimation logic and one or more processors coupled with the at least one physical memory device, to execute the ink estimation logic to receive a histogram for each of a plurality of color planes, receive one or more printer system settings and generate estimated ink usage data for each of the plurality of color planes based on the histograms and the one or more printer system settings.Type: GrantFiled: February 23, 2018Date of Patent: August 25, 2020Assignee: Ricoh Company, Ltd.Inventors: Mikel John Stanich, Vincent William Ferreri, John Thomas Varga, Nikita Gurudath, Larry M. Ernst
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Patent number: 10730293Abstract: A system is disclosed. The system includes at least one physical memory device to store medium classification logic and one or more processors coupled with the at least one physical memory device to execute the medium classification logic to receive optical density (OD) measurement data corresponding to application of a halftone pattern using ink on a print medium in a printing system, receive ink deposition measurement data corresponding to application of the halftone pattern using the ink in a printing system, determine a set of distribution function parameters based on the OD measurement data and the ink deposition measurement data, apply the set of distribution function parameters to machine learning logic trained to classify the print medium and classify the print medium as a first of a plurality of print medium categories based on the machine learning logic.Type: GrantFiled: February 27, 2019Date of Patent: August 4, 2020Assignee: Ricoh Company, Ltd.Inventors: Juan Lin, Nikita Gurudath, Mikel John Stanich
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Patent number: 10723133Abstract: A system is disclosed. The system at least one physical memory device to store ink estimation logic and one or more processors coupled with the at least one physical memory device, to execute the ink estimation logic to receive one or more gray level histograms, receive one or more halftone designs and generate estimated ink usage data for each of one or more color planes based on the gray level histograms and the halftone designs, wherein each gray level histogram corresponds to one of the one or more color planes, and each halftone design corresponds to one of the one or more color planes.Type: GrantFiled: October 4, 2018Date of Patent: July 28, 2020Assignee: Ricoh Company, Ltd.Inventors: Vincent Ferreri, Walter F. Kailey, Nikita Gurudath, Mikel Stanich
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Patent number: 10722115Abstract: Devices and methods for determining a propensity to diabetic and/or macular degeneration in a subject by measuring certain featured from a captured retinal image from a subject are described.Type: GrantFiled: August 16, 2016Date of Patent: July 28, 2020Assignee: Ohio UniversityInventors: Mehmet Celenk, H. Bryan Riley, Nikita Gurudath, Frank Schwartz
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Publication number: 20200108621Abstract: A system is disclosed. The system at least one physical memory device to store ink estimation logic and one or more processors coupled with the at least one physical memory device, to execute the ink estimation logic to receive one or more gray level histograms, receive one or more halftone designs and generate estimated ink usage data for each of one or more color planes based on the gray level histograms and the halftone designs, wherein each gray level histogram corresponds to one of the one or more color planes, and each halftone design corresponds to one of the one or more color planes.Type: ApplicationFiled: October 4, 2018Publication date: April 9, 2020Applicant: Ricoh Company, Ltd.Inventors: VINCENT FERRERI, WALTER F. KAILEY, NIKITA GURUDATH, MIKEL STANICH
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Patent number: 10549523Abstract: A system is disclosed. The system at least one physical memory device to store ink deposition curve compute logic and one or more processors coupled with the at least one physical memory device, to execute the ink deposition curve compute logic to receive a histogram for each of a plurality of color planes, receive ink measurement data for each of the plurality of color planes, compute ink deposition curve data for each of the plurality of color planes based on the histograms and the ink measurement data and transmit the ink deposition curve data.Type: GrantFiled: March 1, 2018Date of Patent: February 4, 2020Assignee: Ricoh Company, Ltd.Inventors: Mikel John Stanich, Vincent William Ferreri, Nikita Gurudath, Larry M. Ernst
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Publication number: 20190389227Abstract: A printing system is disclosed. The printing system includes a printer to print image data to a medium. The printer includes a first pass channel including a first set of pel forming elements to print a first component of the image data and a second pass channel including a second set of pel forming elements to print a second component of the image data, wherein the first component of the image data and the second component of the image data occupy a same region on the print medium. The printing system also includes a print controller to perform uniformity compensation based on a combined compensation of the first pass channel and the second pass channel.Type: ApplicationFiled: August 30, 2019Publication date: December 26, 2019Inventors: Mikel F. Stanich, Nikita Gurudath, Larry Ernst, William E. Manchester
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Patent number: 10500849Abstract: Systems and methods are provided for printhead waveform adjustment. One embodiment is a system that includes a controller that correlates a series of printhead waveforms input to a printhead with a series of optical density values output by the printhead. The controller determines a single target optical density for the printheads based on an average optical density of the printheads. Also, for each of the printheads, the controller determines a functional relationship between the parameter of the printhead waveforms input to the printhead and the optical density values output by the printhead, and determines a target printhead waveform parameter for the printhead based on the single target optical density input to an inverse of the functional relationship. The controller updates printhead settings to include information of the target printhead waveform parameter determined for each of the printheads for applying to the printheads to output ink at consistent optical density.Type: GrantFiled: August 31, 2018Date of Patent: December 10, 2019Assignee: Ricoh Company, Ltd.Inventors: Larry M Ernst, Nikita Gurudath, Shinta Moriya, Mikel John Stanich
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Patent number: 10442211Abstract: A printing system is disclosed. The printing system includes a printer to print image data to a medium. The printer includes a first pass channel including a first set of pel forming elements to print a first component of the image data and a second pass channel including a second set of pel forming elements to print a second component of the image data, wherein the first component of the image data and the second component of the image data occupy a same region on the print medium. The printing system also includes a print controller to perform uniformity compensation based on a combined compensation of the first pass channel and the second pass channel.Type: GrantFiled: February 21, 2017Date of Patent: October 15, 2019Assignee: Ricoh Company, Ltd.Inventors: Mikel Stanich, Nikita Gurudath, Larry Ernst, William E. Manchester
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Publication number: 20190270304Abstract: A system is disclosed. The system at least one physical memory device to store ink deposition curve compute logic and one or more processors coupled with the at least one physical memory device, to execute the ink deposition curve compute logic to receive a histogram for each of a plurality of color planes, receive ink measurement data for each of the plurality of color planes, compute ink deposition curve data for each of the plurality of color planes based on the histograms and the ink measurement data and transmit the ink deposition curve data.Type: ApplicationFiled: March 1, 2018Publication date: September 5, 2019Applicant: Ricoh Company, Ltd.Inventors: Mikel John Stanich, Vincent William Ferreri, Nikita Gurudath, Larry M. Ernst
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Publication number: 20190268482Abstract: A system is disclosed. The system at least one physical memory device to store ink estimation logic and one or more processors coupled with the at least one physical memory device, to execute the ink estimation logic to receive a histogram for each of a plurality of color planes, receive one or more printer system settings and generate estimated ink usage data for each of the plurality of color planes based on the histograms and the one or more printer system settings.Type: ApplicationFiled: February 23, 2018Publication date: August 29, 2019Applicant: Ricoh Company, Ltd.Inventors: Mikel John Stanich, Vincent William Ferreri, John Thomas Varga, Nikita Gurudath, Larry M. Ernst
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Publication number: 20180236776Abstract: A printing system is disclosed. The printing system includes a printer to print image data to a medium. The printer includes a first pass channel including a first set of pel forming elements to print a first component of the image data and a second pass channel including a second set of pel forming elements to print a second component of the image data, wherein the first component of the image data and the second component of the image data occupy a same region on the print medium. The printing system also includes a print controller to perform uniformity compensation based on a combined compensation of the first pass channel and the second pass channel.Type: ApplicationFiled: February 21, 2017Publication date: August 23, 2018Applicant: Ricoh Company, Ltd.Inventors: Mikel Stanich, Nikita Gurudath, Larry Ernst, William E. Manchester
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Publication number: 20180235467Abstract: Devices and methods for determining a propensity to diabetic and/or macular degeneration in a subject by measuring certain featured from a captured retinal image from a subject are described.Type: ApplicationFiled: August 16, 2016Publication date: August 23, 2018Applicant: Ohio UniversityInventors: Mehmet Celenk, H. Bryan Riley, Nikita Gurudath, Frank Schwartz
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Publication number: 20180234582Abstract: A printing system is disclosed. The printing system includes a printer to print image data to a medium and a print controller including a halftone calibration module to dynamically generate calibrated halftones to compensate for optical density changes that occur at the printer.Type: ApplicationFiled: February 16, 2017Publication date: August 16, 2018Applicant: Ricoh Company, Ltd.Inventors: Mikel Stanich, Nikita Gurudath, Larry Ernst, Walter F. Kailey
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Patent number: 9785873Abstract: A printing system is disclosed. The printing system includes a halftone calibration module to receive one or more un-calibrated halftones, transform un-calibrated threshold values in the one or more un-calibrated halftones via an inverse transfer function to generate calibrated halftone threshold values and generate one or more calibrated halftones based on the calibrated halftone threshold values.Type: GrantFiled: February 16, 2016Date of Patent: October 10, 2017Assignee: Ricoh Company, Ltd.Inventors: Mikel Stanich, Nikita Gurudath, Larry M. Ernst, William E. Manchester