Patents by Inventor Abhijit Sarkar
Abhijit Sarkar 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: 20240148332Abstract: Devices, systems, and techniques are disclosed for verifying the occurrence of an acute health event. An example device includes communication circuitry configured to receive a communication indicative of an acute health event of a patient and memory communicatively coupled to the communication circuitry and being configured to store the indication of the acute health event. The device includes processing circuitry communicatively coupled to the communication circuitry and the memory. The processing circuitry is configured to, in response to the communication, verify the acute health event and based on the verification of the acute health event, send an alert regarding the acute health event.Type: ApplicationFiled: February 10, 2022Publication date: May 9, 2024Inventors: Paul G. Krause, Robert W. Stadler, Paul J. DeGroot, Ryan D. Wyszynski, Megan Connolly, Grant A. Neitzell, Shantanu Sarkar, Christopher D. Koch, Yong K. Cho, Ana C. Natera, Kevin T. Ousdigian, Wade M. Demmer, Abhijit P. Jejurkar
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Patent number: 11921764Abstract: A device may receive, in near-real time, unstructured data associated with an application or a system, and may extract textual data from the unstructured data. The device may parse the textual data to generate parsed textual data, and may perform natural language processing on the parsed textual data to generate processed textual data. The device may process the processed textual data, with a clustering model, to identify topical data associated with the processed textual data, and may process the topical data, with a classification model, to group the topical data into categories. The device may generate a knowledge graph based on the categories, and may store the knowledge graph in a data structure. The knowledge graph may enable the device to provide answers to questions associated with the application or the system.Type: GrantFiled: March 12, 2020Date of Patent: March 5, 2024Assignee: Accenture Global Solutions LimitedInventors: Rajendra Prasad Tanniru, Aditi Kulkarni, Koushik M Vijayaraghavan, Srikanth Prasad, Jayashri Sridevi, Roopalaxmi Manjunath, Shankaranand Mallapur, Rajesh Nagarajan, Purnima Jagannathan, Abhijit Avinash Kulkarni, Joydeep Sarkar, Pareshkumar Ramchandbhai Gelot, Sudhir Hanumanthappa
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Patent number: 11227528Abstract: A method for setting a display white point comprises displaying images with a display including at least a first light source and a second light source. The first light source is configured to emit light having a first color and having a first temperature-dependent luminance change. The second light source is configured to emit light having a second color and having a second temperature-dependent luminance change. An internal display temperature is measured. Based on the internal display temperature being a first temperature, a first target white point is set to prioritize color accuracy. Based on the internal display temperature being a second temperature, greater than the first temperature, a second target white point is set to prioritize luminance output.Type: GrantFiled: May 29, 2020Date of Patent: January 18, 2022Assignee: Microsoft Technology Licensing, LLCInventors: Abhijit Sarkar, Dmitry Reshidko, Tuomas Heikki Sakari Vallius
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Publication number: 20210375179Abstract: A method for setting a display white point comprises displaying images with a display including at least a first light source and a second light source. The first light source is configured to emit light having a first color and having a first temperature-dependent luminance change. The second light source is configured to emit light having a second color and having a second temperature-dependent luminance change. An internal display temperature is measured. Based on the internal display temperature being a first temperature, a first target white point is set to prioritize color accuracy. Based on the internal display temperature being a second temperature, greater than the first temperature, a second target white point is set to prioritize luminance output.Type: ApplicationFiled: May 29, 2020Publication date: December 2, 2021Applicant: Microsoft Technology Licensing, LLCInventors: Abhijit SARKAR, Dmitry RESHIDKO, Tuomas Heikki Sakari VALLIUS
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Patent number: 10929597Abstract: Systems and techniques for storing an electronic document signed during an electronic document signing process. A computing device receives an electronic document that includes content within a content area, an image field positioned on the content area, and a cross sign field positioned partially on the image field and partially on the content area. The computing device receives an image to populate the image field and a signature to populate the cross sign field. The computing devices creates a first signature portion and a second signature portion by splitting the signature. The image is modified with the first signature portion and the content area is modified with the second signature portion. The computing device stores the electronic document by storing a file having separate elements, the separate elements including the modified content area and the modified image, without including the complete signature, unaltered content area, or unaltered image.Type: GrantFiled: March 15, 2017Date of Patent: February 23, 2021Assignee: ADOBE INC.Inventors: Nikhil Dang, Ankit Mathur, Abhijit Sarkar
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Patent number: 10715774Abstract: A method for digital image color conversion includes, at a first computing device, capturing a first digital image of a first real-world environment. Based on ambient lighting conditions of the first real-world environment, a first ambient lighting-agnostic digital image is generated using a capture-side ambient lighting color conversion. The first ambient lighting-agnostic digital image is transmitted to a second computing device in a second real-world environment. From the second computing device, a second ambient lighting-agnostic digital image is received, the second image having been generated by the second computing device from a second digital image using the capture-side ambient lighting color conversion. Based on the ambient lighting conditions of the first real-world environment, a lighting-corrected digital image is generated from the second ambient lighting-agnostic digital image using a display-side ambient lighting color conversion.Type: GrantFiled: July 23, 2018Date of Patent: July 14, 2020Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Abhijit Sarkar, Zhenhuan Wen
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Patent number: 10648862Abstract: Sensor calibration methods and systems can for providing accurate color values are disclosed. In one example, a method includes obtaining color measurements that indicate an amount of ambient light, as well as clustering the color measurements, and storing cluster parameters for the clustered color measurements. The method can further include automatic calculation of, for each cluster, generic transformation parameters for conversion of a color measurement to a calibrated color value. In another example, a method can include exposing a light sensor to a calibration ambient lighting, calculating sensor correction parameters for the light sensor, and storing the calculated parameters. As an additional example, an electronic device is adapted to determine calibrated color values with machine readable media storing cluster parameters, sensor correction parameters, and generic transform parameters used by the electronic device to calculate calibrated color values for ambient light sensor measurements.Type: GrantFiled: April 3, 2018Date of Patent: May 12, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Abhijit Sarkar, Samu Matias Kallio, Kari Jussi Ropo
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Publication number: 20200029061Abstract: A method for digital image color conversion includes, at a first computing device, capturing a first digital image of a first real-world environment. Based on ambient lighting conditions of the first real-world environment, a first ambient lighting-agnostic digital image is generated using a capture-side ambient lighting color conversion. The first ambient lighting-agnostic digital image is transmitted to a second computing device in a second real-world environment. From the second computing device, a second ambient lighting-agnostic digital image is received, the second image having been generated by the second computing device from a second digital image using the capture-side ambient lighting color conversion. Based on the ambient lighting conditions of the first real-world environment, a lighting-corrected digital image is generated from the second ambient lighting-agnostic digital image using a display-side ambient lighting color conversion.Type: ApplicationFiled: July 23, 2018Publication date: January 23, 2020Applicant: Microsoft Technology Licensing, LLCInventors: Abhijit SARKAR, Zhenhuan WEN
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Publication number: 20190301932Abstract: Sensor calibration methods and systems can for providing accurate color values are disclosed. In one example, a method includes obtaining color measurements that indicate an amount of ambient light, as well as clustering the color measurements, and storing cluster parameters for the clustered color measurements. The method can further include automatic calculation of, for each cluster, generic transformation parameters for conversion of a color measurement to a calibrated color value. In another example, a method can include exposing a light sensor to a calibration ambient lighting, calculating sensor correction parameters for the light sensor, and storing the calculated parameters. As an additional example, an electronic device is adapted to determine calibrated color values with machine readable media storing cluster parameters, sensor correction parameters, and generic transform parameters used by the electronic device to calculate calibrated color values for ambient light sensor measurements.Type: ApplicationFiled: April 3, 2018Publication date: October 3, 2019Applicant: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Abhijit SARKAR, Samu Matias KALLIO, Kari Jussi ROPO
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Use of multiple calibrated ambient color sensor measurements to generate a single colorimetric value
Patent number: 10345151Abstract: Systems and methods for determining a colorimetric value from color measurements for multiple ambient color sensors which for each color measurement, in various approaches, select a lighting cluster similar to the color measurement and determine whether the color measurement is valid or invalid based on a calculated similarity between the color measurement and the selected lighting cluster, calculate a weight for the color measurement for combination with other color measurements based on the calculated similarity between the color measurement and its selected lighting cluster, determine whether the color measurement is valid or invalid based on perceptual color space distances for the color measurement for multiple reference light sources, and/or calculate a weight for the color measurement for combination with other color measurements based on the perceptual color space distances for multiple reference light sources.Type: GrantFiled: May 2, 2018Date of Patent: July 9, 2019Assignee: Microsoft Technology Licensing, LLCInventors: Abhijit Sarkar, Stefan Angelevski, Samu Matias Kallio, Hiroo Umeno -
Patent number: 10267677Abstract: Calibrated brightness estimation using an ambient color sensor, involving determination and use of lighting cluster parameters effective for automatically identifying which of multiple lighting clusters is associated with a color measurement obtained for the ambient color sensor, and per-cluster sensor brightness estimation factors for each of the first plurality of lighting clusters.Type: GrantFiled: July 19, 2018Date of Patent: April 23, 2019Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Abhijit Sarkar, Shibu Kizhakke Vallathai
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Patent number: 10218952Abstract: Innovations in rendering of high dynamic range (“HDR”) video on a display device having enhanced dynamic range (“EDR”). The peak brightness for an EDR display device is lower than the peak brightness for a typical HDR display device but higher than the peak brightness for a typical display device having standard dynamic range. The increased range of brightness values in an EDR display device can be utilized effectively to show bright highlights of the HDR video. For example, decision logic is configured to evaluate a peak brightness of a target display device and select an HDR-to-EDR tone mapping mode. A tone mapper is configured to apply tone mapping to input values for the sample values of HDR video, according to a tone mapping function, thereby producing output values for sample values of EDR video.Type: GrantFiled: December 20, 2016Date of Patent: February 26, 2019Assignee: Microsoft Technology Licensing, LLCInventors: Matthew Wozniak, Mehmet Kucukgoz, Abhijit Sarkar
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Publication number: 20180267946Abstract: Systems and techniques for storing an electronic document signed during an electronic document signing process. A computing device receives an electronic document that includes content within a content area, an image field positioned on the content area, and a cross sign field positioned partially on the image field and partially on the content area. The computing device receives an image to populate the image field and a signature to populate the cross sign field. The computing devices creates a first signature portion and a second signature portion by splitting the signature. The image is modified with the first signature portion and the content area is modified with the second signature portion. The computing device stores the electronic document by storing a file having separate elements, the separate elements including the modified content area and the modified image, without including the complete signature, unaltered content area, or unaltered image.Type: ApplicationFiled: March 15, 2017Publication date: September 20, 2018Inventors: Nikhil DANG, Ankit MATHUR, Abhijit SARKAR
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Publication number: 20180152684Abstract: Innovations in rendering of high dynamic range (“HDR”) video on a display device having enhanced dynamic range (“EDR”) are described. The peak brightness for an EDR display device is lower than the peak brightness for a typical HDR display device but higher than the peak brightness for a typical display device having standard dynamic range. The increased range of brightness values in an EDR display device can be utilized effectively to show bright highlights of the HDR video. For example, decision logic is configured to evaluate a peak brightness of a target display device and select an HDR-to-EDR tone mapping mode. A tone mapper is configured to apply tone mapping to input values for the sample values of HDR video, according to a tone mapping function, thereby producing output values for sample values of EDR video.Type: ApplicationFiled: December 20, 2016Publication date: May 31, 2018Applicant: Microsoft Technology Licensing, LLCInventors: Matthew Wozniak, Mehmet Kucukgoz, Abhijit Sarkar
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Publication number: 20180152686Abstract: Innovations in rendering of high dynamic range (“HDR”) video on a display device having enhanced dynamic range (“EDR”) are described. The peak brightness for an EDR display device is lower than the peak brightness for a typical HDR display device but higher than the peak brightness for a typical display device having standard dynamic range. The increased range of brightness values in an EDR display device can be utilized effectively to show bright highlights of the HDR video. For example, decision logic is configured to evaluate a peak brightness of a target display device and select an HDR-to-EDR tone mapping mode. A tone mapper is configured to apply tone mapping to input values for the sample values of HDR video, according to a tone mapping function, thereby producing output values for sample values of EDR video.Type: ApplicationFiled: December 20, 2016Publication date: May 31, 2018Applicant: Microsoft Technology Licensing, LLCInventors: Matthew Wozniak, Mehmet Kucukgoz, Abhijit Sarkar
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Patent number: 9710890Abstract: In some embodiments, color and contrast enhancement video processing may be done in one shot instead of adjusting one of color and contrast enhancement, then the other, and then going back to the first one to readjust because of the second adjustment. In some embodiments, global lightness adjustment, local contrast enhancement, and saturation enhancement may be done at the same time and in parallel. Lightness adjustment improves visibility of details for generally dark or generally light images without changing intended lighting conditions in the original shot, and is used to enhance the range of color/saturation enhancement. Local contrast enhancement done in parallel improves visual definition of objects and textures and thus local contrast and perceived sharpness.Type: GrantFiled: May 5, 2015Date of Patent: July 18, 2017Assignee: Intel CorporationInventors: Abhijit Sarkar, Jorge E. Caviedes, Mahesh Subedar
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Patent number: 9378564Abstract: A method, non-transitory medium and color correction computing device that identifies an area of interest in a digital image comprising a plurality of pixels. A white point in the identified area of interest is determined. One or more corrected colorimetric data points are determined for each of the plurality of pixels in the identified area of interest based on the determined white point. One or more output colors in the digital image are corrected using the determined one or more corrected colorimetric data points.Type: GrantFiled: March 3, 2014Date of Patent: June 28, 2016Assignee: ColorModules Inc.Inventor: Abhijit Sarkar
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Publication number: 20150235348Abstract: In some embodiments, color and contrast enhancement video processing may be done in one shot instead of adjusting one of color and contrast enhancement, then the other, and then going back to the first one to readjust because of the second adjustment. In some embodiments, global lightness adjustment, local contrast enhancement, and saturation enhancement may be done at the same time and in parallel. Lightness adjustment improves visibility of details for generally dark or generally light images without changing intended lighting conditions in the original shot, and is used to enhance the range of color/saturation enhancement. Local contrast enhancement done in parallel improves visual definition of objects and textures and thus local contrast and perceived sharpness.Type: ApplicationFiled: May 5, 2015Publication date: August 20, 2015Inventors: Abhijit Sarkar, Jorge E. Caviedes, Mahesh Subedar
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Patent number: 9053523Abstract: In some embodiments, color and contrast enhancement video processing may be done in one shot instead of adjusting one of color and contrast enhancement, then the other, and then going back to the first one to readjust because of the second adjustment. In some embodiments, global lightness adjustment, local contrast enhancement, and saturation enhancement may be done at the same time and in parallel. Lightness adjustment improves visibility of details for generally dark or generally light images without changing intended lighting conditions in the original shot, and is used to enhance the range of color/saturation enhancement. Local contrast enhancement done in parallel improves visual definition of objects and textures and thus local contrast and perceived sharpness.Type: GrantFiled: June 21, 2013Date of Patent: June 9, 2015Assignee: Intel CorporationInventors: Abhijit Sarkar, Jorge E. Caviedes, Mahesh Subedar
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Publication number: 20140247984Abstract: A method, non-transitory medium and color correction computing device that identifies an area of interest in a digital image comprising a plurality of pixels. A white point in the identified area of interest is determined. One or more corrected colorimetric data points are determined for each of the plurality of pixels in the identified area of interest based on the determined white point. One or more output colors in the digital image are corrected using the determined one or more corrected colorimetric data points.Type: ApplicationFiled: March 3, 2014Publication date: September 4, 2014Applicant: ColorModules Inc.Inventor: Abhijit Sarkar