Patents by Inventor Rohini KRISHNAPURA

Rohini KRISHNAPURA 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: 10176362
    Abstract: A system and method for performing spoof detection are disclosed. The method includes: receiving an input image of a biometric; computing a gradient image of the biometric based on the input image of the biometric; dividing the gradient image into blocks of pixels; computing, for each block, a variance value corresponding to a variance of the pixels in the block; and, determining whether the input image is a replica of the biometric based on the variance values of the blocks of the gradient image.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: January 8, 2019
    Assignee: Synaptics Incorporated
    Inventor: Rohini Krishnapura
  • Patent number: 10127429
    Abstract: Disclosed are a system and method for performing spoof detection. The method includes: receiving, by processor from a biometric sensor, an input image of a biometric; obtaining, by the processor, keypoint locations of keypoints in the input image, wherein keypoints in the input image comprise local regions of interest in the input image; computing, by the processor, one or more anti-spoof metrics of the input image based on the keypoint locations; and, determining, by the processor, whether the input image is a replica of the biometric based on the one or more anti-spoof metrics.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: November 13, 2018
    Assignee: Synaptics Incorporated
    Inventors: Rohini Krishnapura, Anthony P. Russo
  • Patent number: 10121054
    Abstract: Disclosed is a system and method for performing spoof detection. The method includes: receiving, by a processor from a biometric sensor, an input image of a biometric; obtaining, by the processor, alignment information that aligns the input image to an enrollment image; determining, by the processor, an overlap region and a non-overlap region of the input image relative to the enrollment image; extracting, by the processor, one or more anti-spoof features from the input image based on one or more of the overlap region and the non-overlap region; and, determining, by the processor, whether the input image is a replica of the biometric based on the one or more anti-spoof features.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: November 6, 2018
    Assignee: Synaptics Incorporated
    Inventors: Rohini Krishnapura, Anthony P. Russo
  • Patent number: 10013597
    Abstract: A method and a device are provided for performing a recognition process. The recognition process compares an individual fingerprint view to a fingerprint enrollment template in order to determine whether a match has been found. The determination of a match is based on individual match statistics collected between the individual fingerprint view and each view of the fingerprint enrollment template. Additionally, inter-view match statistics between each view of the fingerprint enrollment template may also be determined. The inter-view match statistics can be analyzed along with the individual match statistics to further inform the determination of a match between the individual fingerprint view and the fingerprint enrollment template.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: July 3, 2018
    Assignee: Synaptics Incorporated
    Inventors: Anthony P. Russo, Rohini Krishnapura
  • Publication number: 20180129859
    Abstract: Disclosed is a system and method for performing spoof detection. The method includes: receiving, by a processor from a biometric sensor, an input image of a biometric; obtaining, by the processor, alignment information that aligns the input image to an enrollment image; determining, by the processor, an overlap region and a non-overlap region of the input image relative to the enrollment image; extracting, by the processor, one or more anti-spoof features from the input image based on one or more of the overlap region and the non-overlap region; and, determining, by the processor, whether the input image is a replica of the biometric based on the one or more anti-spoof features.
    Type: Application
    Filed: December 22, 2016
    Publication date: May 10, 2018
    Inventors: Rohini Krishnapura, Anthony P. Russo
  • Publication number: 20180129860
    Abstract: Disclosed are a system and method for performing spoof detection. The method includes: receiving, by processor from a biometric sensor, an input image of a biometric; obtaining, by the processor, keypoint locations of keypoints in the input image, wherein keypoints in the input image comprise local regions of interest in the input image; computing, by the processor, one or more anti-spoof metrics of the input image based on the keypoint locations; and, determining, by the processor, whether the input image is a replica of the biometric based on the one or more anti-spoof metrics.
    Type: Application
    Filed: December 22, 2016
    Publication date: May 10, 2018
    Inventors: Rohini Krishnapura, Anthony P. Russo
  • Publication number: 20180024718
    Abstract: An emulation system receives a swipe along a finger sensor to set a computer display in motion. After the swipe is completed, the display continues along its previous path. Depending on their direction, subsequent swipes can be used to accelerate or decelerate the motion. Gradually, the display decelerates. In one embodiment, this deceleration simulates an inertial decay, providing the user with a pleasing display that gradually rolls to a stop. The deceleration is modeled on a joystick return-to-home inertial decay, allowing the user greater control when navigating over the display. The finger sensor is used to emulate different electronic devices, such as a mouse, a scroll wheel, and a rotating wheel.
    Type: Application
    Filed: October 4, 2017
    Publication date: January 25, 2018
    Inventors: WAYNE YANG, ROHINI KRISHNAPURA
  • Patent number: 9842211
    Abstract: Systems and methods for determining a threat level are disclosed. A method includes: receiving, from a biometric sensor, data corresponding an attempt to verify an identity of a user; determining, based on the data corresponding to the attempt, one or more authentication parameters associated with the attempt; authenticating the user based on determining that a score associated with the attempt satisfies an authentication condition associated with a biometric template; after authenticating the user, determining one or more device usage parameters within a time window of authenticating the user; determining a threat level based on the one or more authentication parameters and the one or more device usage parameters; and, causing an action to be performed by the device in accordance with the threat level.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: December 12, 2017
    Assignee: Synaptics Incorporated
    Inventor: Rohini Krishnapura
  • Patent number: 9785330
    Abstract: An emulation system receives a swipe along a finger sensor to set a computer display in motion. After the swipe is completed, the display continues along its previous path. Depending on their direction, subsequent swipes can be used to accelerate or decelerate the motion. Gradually, the display decelerates. In one embodiment, this deceleration simulates an inertial decay, providing the user with a pleasing display that gradually rolls to a stop. The deceleration is modeled on a joystick return-to-home inertial decay, allowing the user greater control when navigating over the display. The finger sensor is used to emulate different electronic devices, such as a mouse, a scroll wheel, and a rotating wheel.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: October 10, 2017
    Assignee: APPLE INC.
    Inventors: Wayne Yang, Rohini Krishnapura
  • Publication number: 20170124328
    Abstract: Systems and methods for determining a threat level are disclosed. A method includes: receiving, from a biometric sensor, data corresponding an attempt to verify an identity of a user; determining, based on the data corresponding to the attempt, one or more authentication parameters associated with the attempt; authenticating the user based on determining that a score associated with the attempt satisfies an authentication condition associated with a biometric template; after authenticating the user, determining one or more device usage parameters within a time window of authenticating the user; determining a threat level based on the one or more authentication parameters and the one or more device usage parameters; and, causing an action to be performed by the device in accordance with the threat level.
    Type: Application
    Filed: October 28, 2015
    Publication date: May 4, 2017
    Inventor: Rohini Krishnapura
  • Publication number: 20170061196
    Abstract: A method and a device are provided for performing a recognition process. The recognition process compares an individual fingerprint view to a fingerprint enrollment template in order to determine whether a match has been found. The determination of a match is based on individual match statistics collected between the individual fingerprint view and each view of the fingerprint enrollment template. Additionally, inter-view match statistics between each view of the fingerprint enrollment template may also be determined. The inter-view match statistics can be analyzed along with the individual match statistics to further inform the determination of a match between the individual fingerprint view and the fingerprint enrollment template.
    Type: Application
    Filed: November 14, 2016
    Publication date: March 2, 2017
    Inventors: Anthony P. Russo, Rohini Krishnapura
  • Patent number: 9508022
    Abstract: A method and a device are provided for performing a recognition process. The recognition process compares an individual fingerprint view to a fingerprint enrollment template in order to determine whether a match has been found. The determination of a match is based on individual match statistics collected between the individual fingerprint view and each view of the fingerprint enrollment template. Additionally, inter-view match statistics between each view of the fingerprint enrollment template may also be determined. The inter-view match statistics can be analyzed along with the individual match statistics to further inform the determination of a match between the individual fingerprint view and the fingerprint enrollment template.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: November 29, 2016
    Assignee: Synaptics Incorporated
    Inventors: Anthony P. Russo, Rohini Krishnapura
  • Publication number: 20160162725
    Abstract: A system and method is disclosed for comparing biometric image data to a stored enrollment template that may comprise collecting a set of biometric image data for a biometric object image from a biometric object imaging sensor; storing the biometric object image data in a memory as an enrollment template for further comparison to find a match with subsequently imaged biometric object image data; collecting a subsequent set of biometric image data for a biometric object image from the biometric object imaging sensor; updating the enrollment template; determining if a limited enrollment window remains open; and repeating the collecting of a subsequent set of biometric data step if the enrollment window remains open. Determining if the enrollment window remains open may be by determining the existence of one of a stability indicator and an instability indicator.
    Type: Application
    Filed: February 4, 2016
    Publication date: June 9, 2016
    Inventors: Anthony P. Russo, Larry E. Hattery, Rohini Krishnapura, Phillip Yiu Kwong Chan
  • Patent number: 9268991
    Abstract: A system and method is disclosed for comparing biometric image data to a stored enrollment template that may comprise collecting a set of biometric image data for a biometric object image from a biometric object imaging sensor; storing the biometric object image data in a memory as an enrollment template for further comparison to find a match with subsequently imaged biometric object image data; collecting a subsequent set of biometric image data for a biometric object image from the biometric object imaging sensor; updating the enrollment template; determining if a limited enrollment window remains open; and repeating the collecting of a subsequent set of biometric data step if the enrollment window remains open. Determining if the enrollment window remains open may be by determining the existence of one of a stability indicator and an instability indicator.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: February 23, 2016
    Assignee: Synaptics Incorporated
    Inventors: Anthony P. Russo, Larry E. Hattery, Rohini Krishnapura, Philip Yiu Kwong Chan
  • Publication number: 20160042247
    Abstract: A method and a device are provided for performing a recognition process. The recognition process compares an individual fingerprint view to a fingerprint enrollment template in order to determine whether a match has been found. The determination of a match is based on individual match statistics collected between the individual fingerprint view and each view of the fingerprint enrollment template. Additionally, inter-view match statistics between each view of the fingerprint enrollment template may also be determined. The inter-view match statistics can be analyzed along with the individual match statistics to further inform the determination of a match between the individual fingerprint view and the fingerprint enrollment template.
    Type: Application
    Filed: August 11, 2015
    Publication date: February 11, 2016
    Inventors: Anthony P. Russo, Rohini Krishnapura
  • Publication number: 20130259330
    Abstract: A system and method is disclosed for comparing biometric image data to a stored enrollment template that may comprise collecting a set of biometric image data for a biometric object image from a biometric object imaging sensor; storing the biometric object image data in a memory as an enrollment template for further comparison to find a match with subsequently imaged biometric object image data; collecting a subsequent set of biometric image data for a biometric object image from the biometric object imaging sensor; updating the enrollment template; determining if a limited enrollment window remains open; and repeating the collecting of a subsequent set of biometric data step if the enrollment window remains open. Determining if the enrollment window remains open may be by determining the existence of one of a stability indicator and an instability indicator.
    Type: Application
    Filed: March 26, 2013
    Publication date: October 3, 2013
    Applicant: Validity Sensors, Inc.
    Inventors: Anthony P. RUSSO, Larry E. HATTERY, Rohini KRISHNAPURA, Philip Yiu Kwong CHAN