Patents by Inventor Karthik Bhat
Karthik Bhat 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: 20240163117Abstract: An authentication system supports multi-factor authentication (MFA) when authenticating the identity of a user. A challenge-response portion of the authentication process is delegated to an MFA device-a secondary device within control of the user, but separate from the primary login device that the user is using when initiating the authentication. Communications between the MFA device and the login device are conducted using a short-range wireless communication protocol (e.g., Bluetooth™ or NFC), so that the two devices must be in close physical proximity to each other.Type: ApplicationFiled: January 26, 2024Publication date: May 16, 2024Inventors: Stephen Woodward LIND, Bidan SINHA, Karthik BHAT, Naveen Kumar KEERTHY, Jintai HE, Kavitha CHANDRAMOHAN
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Patent number: 11917087Abstract: An authentication system supports multi-factor authentication (MFA) when authenticating the identity of a user. A challenge-response portion of the authentication process is delegated to an MFA device—a secondary device within control of the user, but separate from the primary login device that the user is using when initiating the authentication. Communications between the MFA device and the login device are conducted using a short-range wireless communication protocol (e.g., Bluetooth™ or NFC), so that the two devices must be in close physical proximity to each other.Type: GrantFiled: January 31, 2022Date of Patent: February 27, 2024Inventors: Stephen Woodward Lind, Bidan Sinha, Karthik Bhat, Naveen Kumar Keerthy, Jintai He, Kavitha Chandramohan
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Publication number: 20230246851Abstract: An authentication system supports multi-factor authentication (MFA) when authenticating the identity of a user. A challenge-response portion of the authentication process is delegated to an MFA device—a secondary device within control of the user, but separate from the primary login device that the user is using when initiating the authentication. Communications between the MFA device and the login device are conducted using a short-range wireless communication protocol (e.g., Bluetooth™ or NFC), so that the two devices must be in close physical proximity to each other.Type: ApplicationFiled: January 31, 2022Publication date: August 3, 2023Inventors: Stephen Woodward Lind, Bidan Sinha, Karthik Bhat, Naveen Kumar Keerthy, Jintai He, Kavitha Chandramohan
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Publication number: 20230246829Abstract: A client device that is not originally compliant with a particular security standard (e.g., FIPS) is brought into compliance through the addition of a standard-compliant software-based cryptographic library. In order to adapt the cryptographic library to integrate with the hardware-backed keystore, a non-hardware-backed software keystore is used to store keys used by the cryptographic library. Additionally, in order to provide appropriate security for the software keystore, the software keystore (and/or the keypairs within the software keystore) is protected by a password, and the password is in turn protected by the hardware-backed keystore. Thus, to obtain the password needed to obtain a keypair from the software keystore that is in turn needed to use the cryptographic library, a user must authenticate with the operating system, e.g., by providing biometric credentials.Type: ApplicationFiled: February 1, 2022Publication date: August 3, 2023Inventors: Bidan Sinha, Kavitha Chandramohan, Helen Chen, Karthik Bhat, Fei Chen, Aakash Mehta, Thanh-Ha Nguyen
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Patent number: 11036574Abstract: An approach for recovering event logs. The approach detects corruption in an event log. The approach determines whether a start pointer in a log buffer header is corrupt. Responsive to a determination that the start pointer is corrupt, the approach recovers the start pointer. The approach determines whether an end pointer in the log buffer header is corrupt. Responsive to a determination that the end pointer is corrupt, the approach recovers the end pointer. The approach determines whether an eye catcher in the log buffer header is corrupt. Responsive to a determination that the eye catcher is corrupt, the approach recovers the eye catcher. The approach presents one or more log entries to a management console.Type: GrantFiled: January 31, 2019Date of Patent: June 15, 2021Assignee: International Business Machines CorporationInventors: Ankur Agrrawal, Karthik Bhat, Clarence D'Mello, Naveen Kumar Hullahalli Rajashekar, Muruganandam Somasundaram, Martin Taubert
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Publication number: 20190163554Abstract: An approach for recovering event logs. The approach detects corruption in an event log. The approach determines whether a start pointer in a log buffer header is corrupt. Responsive to a determination that the start pointer is corrupt, the approach recovers the start pointer. The approach determines whether an end pointer in the log buffer header is corrupt. Responsive to a determination that the end pointer is corrupt, the approach recovers the end pointer. The approach determines whether an eye catcher in the log buffer header is corrupt. Responsive to a determination that the eye catcher is corrupt, the approach recovers the eye catcher. The approach presents one or more log entries to a management console.Type: ApplicationFiled: January 31, 2019Publication date: May 30, 2019Inventors: Ankur Agrrawal, Karthik Bhat, Clarence D'Mello, Naveen Kumar Hullahalli Rajashekar, Muruganandam Somasundaram, Martin Taubert
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Patent number: 10241855Abstract: An approach for recovering event logs. The approach detects corruption in an event log. The approach determines whether a start pointer in a log buffer header is corrupt. Responsive to a determination that the start pointer is corrupt, the approach recovers the start pointer. The approach determines whether an end pointer in the log buffer header is corrupt. Responsive to a determination that the end pointer is corrupt, the approach recovers the end pointer. The approach determines whether an eye catcher in the log buffer header is corrupt. Responsive to a determination that the eye catcher is corrupt, the approach recovers the eye catcher. The approach presents one or more log entries to a management console.Type: GrantFiled: November 14, 2016Date of Patent: March 26, 2019Assignee: International Business Machines CorporationInventors: Ankur Agrrawal, Karthik Bhat, Clarence D'Mello, Naveen Kumar Hullahalli Rajashekar, Muruganandam Somasundaram, Martin Taubert
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Patent number: 10002586Abstract: Display data used in display frame generation are compressed for efficient storage in a local memory within a graphics processing unit. The compression technique used is difference encoding and before performing difference encoding, display data in RGB format are converted into YCbCr format. Since the component values of adjacent pixels in YCbCr format typically vary less than the component values of the same adjacent pixels in RGB format, converting the display data to YCbCr format before performing difference encoding improves the compression efficiency.Type: GrantFiled: December 13, 2006Date of Patent: June 19, 2018Assignee: NVIDIA CORPORATIONInventors: Sreenivas Krishnan, Koen Bennebroek, Karthik Bhat, Stefano A. Pescador, David G. Reed, Brad W. Simeral, Edward M. Veeser
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Publication number: 20180136993Abstract: An approach for recovering event logs. The approach detects corruption in an event log. The approach determines whether a start pointer in a log buffer header is corrupt. Responsive to a determination that the start pointer is corrupt, the approach recovers the start pointer. The approach determines whether an end pointer in the log buffer header is corrupt. Responsive to a determination that the end pointer is corrupt, the approach recovers the end pointer. The approach determines whether an eye catcher in the log buffer header is corrupt. Responsive to a determination that the eye catcher is corrupt, the approach recovers the eye catcher. The approach presents one or more log entries to a management console.Type: ApplicationFiled: November 14, 2016Publication date: May 17, 2018Inventors: Ankur Agrrawal, Karthik Bhat, Clarence D'Mello, Naveen Kumar Hullahalli Rajashekar, Muruganandam Somasundaram, Martin Taubert
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Patent number: 8692837Abstract: One embodiment of the invention sets forth a technique for compressing and storing display data and optionally compressing and storing cursor data in a memory that is local to a graphics processing unit to reduce the power consumed by a mobile computing device when refreshing the screen. Compressing the display data and optionally the cursor data also reduces the relative cost of the invention by reducing the size of the local memory relative to the size that would be necessary if the display data were stored locally in uncompressed form. Thus, the invention may improve mobile computing device battery life, while keeping additional costs low.Type: GrantFiled: September 21, 2006Date of Patent: April 8, 2014Assignee: Nvidia CorporationInventors: Krishnan Sreenivas, Koen Bennebroek, Karthik Bhat, Stefano A. Pescador, David G. Reed, Brad W. Simeral, Edward M. Veeser
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Publication number: 20130201195Abstract: One embodiment of the invention sets forth a technique for compressing and storing display data and optionally compressing and storing cursor data in a memory that is local to a graphics processing unit to reduce the power consumed by a mobile computing device when refreshing the screen. Compressing the display data and optionally the cursor data also reduces the relative cost of the invention by reducing the size of the local memory relative to the size that would be necessary if the display data were stored locally in uncompressed form. Thus, the invention may improve mobile computing device battery life, while keeping additional costs low.Type: ApplicationFiled: February 7, 2012Publication date: August 8, 2013Inventors: Krishnan SREENIVAS, Koen Bennebroek, Karthik Bhat, Stefano A. Pescador, David G. Reed, Brad W. Simeral, Edward M. Veeser
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Patent number: 8120614Abstract: One embodiment of the invention sets forth a technique for compressing and storing display data and optionally compressing and storing cursor data in a memory that is local to a graphics processing unit to reduce the power consumed by a mobile computing device when refreshing the screen. Compressing the display data and optionally the cursor data also reduces the relative cost of the invention by reducing the size of the local memory relative to the size that would be necessary if the display data were stored locally in uncompressed form. Thus, the invention may improve mobile computing device battery life, while keeping additional costs low.Type: GrantFiled: March 17, 2011Date of Patent: February 21, 2012Assignee: NVIDIA CorporationInventors: Krishnan Sreenivas, Koen Bennebroek, Karthik Bhat, Stefano A. Pescador, David G. Reed, Brad W. Simeral, Edward M. Veeser
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Patent number: 8098254Abstract: Display data and video data are stored within a graphics processing unit to reduce power consumed by the computing device during video playback. Storing display data and video data within the GPU reduces power consumption, because bus transaction activity is reduced and the need to read data from a larger, common main memory is avoided.Type: GrantFiled: January 14, 2011Date of Patent: January 17, 2012Assignee: NVIDIA CorporationInventors: Krishnan Sreenivas, Koen Bennebroek, Sanford S. Lum, Karthik Bhat, Stefano A. Pescador, David G. Reed, Brad W. Simeral, Edward M. Veeser
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Publication number: 20110169845Abstract: One embodiment of the invention sets forth a technique for compressing and storing display data and optionally compressing and storing cursor data in a memory that is local to a graphics processing unit to reduce the power consumed by a mobile computing device when refreshing the screen. Compressing the display data and optionally the cursor data also reduces the relative cost of the invention by reducing the size of the local memory relative to the size that would be necessary if the display data were stored locally in uncompressed form. Thus, the invention may improve mobile computing device battery life, while keeping additional costs low.Type: ApplicationFiled: March 17, 2011Publication date: July 14, 2011Inventors: Krishnan Sreenivas, Koen Bennebroek, Karthik Bhat, Stefano A. Pescador, David G. Reed, Brad W. Simeral, Edward M. Veeser
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Publication number: 20110109639Abstract: Display data and video data are stored within a graphics processing unit to reduce power consumed by the computing device during video playback. Storing display data and video data within the GPU reduces power consumption, because bus transaction activity is reduced and the need to read data from a larger, common main memory is avoided.Type: ApplicationFiled: January 14, 2011Publication date: May 12, 2011Inventors: Krishnan Sreenivas, Koen Bennebroek, Sanford S. Lum, Karthik Bhat, Stefano A. Pescador, David G. Reed, Brad W. Simeral, Edward M. Veeser
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Patent number: 7876327Abstract: Display data and video data are stored within a graphics processing unit to reduce power consumed by the computing device during video playback. Storing display data and video data within the GPU reduces power consumption, because bus transaction activity is reduced and the need to read data from a larger, common main memory is avoided.Type: GrantFiled: December 21, 2006Date of Patent: January 25, 2011Assignee: NVIDIA CorporationInventors: Krishnan Sreenivas, Koen Bennebroek, Sanford S. Lum, Karthik Bhat, Stefano A. Pescador, David G. Reed, Brad W. Simeral, Edward M. Veeser
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Patent number: 7688325Abstract: One embodiment of the invention sets forth a technique for compressing and storing display data and optionally compressing and storing cursor data in a memory that is local to a graphics processing unit to reduce the power consumed by a mobile computing device when refreshing the screen. Compressing the display data and optionally the cursor data also reduces the relative cost of the invention by reducing the size of the local memory relative to the size that would be necessary if the display data were stored locally in uncompressed form. Thus, the invention may improve mobile computing device battery life, while keeping additional costs low.Type: GrantFiled: September 21, 2006Date of Patent: March 30, 2010Assignee: NVIDIA CorporationInventors: Krishnan Sreenivas, Koen Bennebroek, Karthik Bhat, Stefano A. Pescador, David G. Reed, Brad W. Simeral, Edward M. Veeser