Patents by Inventor Esra Vural

Esra Vural 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: 9953233
    Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: April 24, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, David William Burns, Suryaprakash Ganti, John Keith Schneider, Saurav Bandyopadhyay, Jin Gu
  • Patent number: 9911184
    Abstract: A fingerprint sensing apparatus may include a fingerprint sensor system and a control system capable of receiving fingerprint sensor data from the fingerprint sensor system. The control system may be capable of determining fingerprint sensor data blocks for at least a portion of the fingerprint sensor data and of calculating statistical variance values for fingerprint sensor data corresponding to each of the fingerprint sensor data blocks. The control system may be capable of determining, based at least in part the statistical variance values, whether an object is positioned proximate a portion of the fingerprint sensor system.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: March 6, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
  • Publication number: 20170200054
    Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.
    Type: Application
    Filed: March 28, 2017
    Publication date: July 13, 2017
    Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, David William Burns, Suryaprakash Ganti, John Keith Schneider, Saurav Kumar Bandyopadhyay, Jin Gu
  • Patent number: 9665763
    Abstract: Some methods may involve determining whether an object is positioned on or near a portion of a fingerprint sensor system. If an object is positioned on or near the portion of the fingerprint sensor system, an acoustic impedance of at least a portion of the object may be determined. Based at least in part on the acoustic impedance, it may be determined whether the object is a finger.
    Type: Grant
    Filed: August 31, 2014
    Date of Patent: May 30, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
  • Patent number: 9639765
    Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: May 2, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, David William Burns, Suryaprakash Ganti, John Keith Schneider, Saurav Bandyopadhyay, Jin Gu
  • Patent number: 9633269
    Abstract: A liveness-detection method and/or system is disclosed. A method of detecting liveness can comprise obtaining a single ultrasonic image of a biometric object. The single ultrasonic image can be subdivided into a plurality of overlapping sample blocks. Feature vectors can be extracted in a spatial domain and a frequency domain from each of the plurality of sample blocks. The feature vectors can be compared from each of the plurality of sample blocks to a classification model.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: April 25, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Jin Gu, Ming Yu Chen, Eliza Yingzi Du, Kwokleung Chan, Esra Vural, Saurav Bandyopadhyay
  • Patent number: 9609511
    Abstract: A signal may be emitted by an emitter or transducer. The signal may be sensed by a sensor, such as an accelerometer. Features of a body part or portion may be one of detected, extracted, or constructed from the sensed signal. It may be determined whether the body part or portion matches that of a user, such as an authorized user, based on the features.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: March 28, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Esra Vural, Mark W Van Order, Peter S Nyholm, Stephanie Schuckers
  • Patent number: 9582705
    Abstract: A fingerprint sensing apparatus includes a fingerprint sensor system and a control system capable of receiving fingerprint sensor data from the fingerprint sensor system. The control system may determine, according to the fingerprint sensor data, whether an object is positioned proximate a portion of the fingerprint sensor system. If the control system determines that an object is positioned proximate the portion of the fingerprint sensor system, the control system may determine whether the object is a finger or a non-finger object. The control system may determine whether the fingerprint sensor data includes fingerprint image information of at least an image quality threshold.
    Type: Grant
    Filed: August 31, 2014
    Date of Patent: February 28, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
  • Publication number: 20160379038
    Abstract: Techniques for fingerprint quality assessment are presented. In some embodiments, a fingerprint image is subdivided into a plurality of sub-images. An orientation and a frequency associated with fingerprint ridges or valleys can be determined for each sub-image. A model can be generated for each sub-image and then compared to each sub-image. Based on the comparing, a quality assessment can be determined for each of the sub-images.
    Type: Application
    Filed: June 23, 2016
    Publication date: December 29, 2016
    Inventors: Esra VURAL, Eliza Yingzi DU
  • Publication number: 20160350573
    Abstract: Systems and methods for multi-spectral ultrasonic imaging are disclosed. In one embodiment, a finger is scanned at a plurality of ultrasonic scan frequencies. Each scan frequency provides an image information set describing a plurality of pixels of the finger including a signal-strength indicating an amount of energy reflected from a surface of a platen on which a finger is provided. For each of the pixels, the pixel output value corresponding to each of the scan frequencies is combined to produce a combined pixel out put value for each pixel. Systems and methods for improving the data capture of multi-spectral ultrasonic imaging are also disclosed.
    Type: Application
    Filed: March 5, 2015
    Publication date: December 1, 2016
    Applicant: Qualcomm Incorporated
    Inventors: Jack Conway Kitchens, II, John Keith Schneider, Ashish Hinger, Ranjith Ranganathan, Nai-Kuei Kuo, Kostadin Dimitrov Djordjev, Stephen Michael Gojevic, David William Burns, Nao Sugawara Chuei, Eliza Yingzi Du, Ming Yu Chen, Kwokleung Chan, Jin Gu, Esra Vural
  • Publication number: 20160070967
    Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 10, 2016
    Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, David William Burns, Suryaprakash Ganti, John Keith Schneider, Saurav Bandyopadhyay, Jin Gu
  • Publication number: 20160070968
    Abstract: A liveness-detection method and/or system is disclosed. A method of detecting liveness can comprise obtaining a single ultrasonic image of a biometric object. The single ultrasonic image can be subdivided into a plurality of overlapping sample blocks. Feature vectors can be extracted in a spatial domain and a frequency domain from each of the plurality of sample blocks. The feature vectors can be compared from each of the plurality of sample blocks to a classification model.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 10, 2016
    Inventors: Jin Gu, Ming Yu Chen, Eliza Yingzi Du, Kwokleung Chan, Esra Vural, Saurav Bandyopadhyay
  • Publication number: 20160063296
    Abstract: A fingerprint sensing apparatus may include a fingerprint sensor system and a control system capable of receiving fingerprint sensor data from the fingerprint sensor system. The control system may be capable of determining fingerprint sensor data blocks for at least a portion of the fingerprint sensor data and of calculating statistical variance values for fingerprint sensor data corresponding to each of the fingerprint sensor data blocks. The control system may be capable of determining, based at least in part the statistical variance values, whether an object is positioned proximate a portion of the fingerprint sensor system.
    Type: Application
    Filed: October 30, 2015
    Publication date: March 3, 2016
    Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleong Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
  • Publication number: 20160063294
    Abstract: A fingerprint sensing apparatus may include a fingerprint sensor system and a control system. The fingerprint sensor system may include an ultrasonic sensor array. The control system may be capable of receiving fingerprint sensor data from the fingerprint sensor system and of determining whether an object is positioned proximate a portion of the fingerprint sensor system. The control system may be capable of determining an acoustic impedance of at least a portion of an object that is positioned proximate the fingerprint sensor system. The control system may be capable of determining whether the acoustic impedance is within an acoustic impedance range corresponding to that of skin and of determining, based at least in part on the acoustic impedance, whether the object is a finger.
    Type: Application
    Filed: August 31, 2014
    Publication date: March 3, 2016
    Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
  • Publication number: 20160063300
    Abstract: A fingerprint sensing apparatus includes a fingerprint sensor system and a control system capable of receiving fingerprint sensor data from the fingerprint sensor system. The control system may determine, according to the fingerprint sensor data, whether an object is positioned proximate a portion of the fingerprint sensor system. If the control system determines that an object is positioned proximate the portion of the fingerprint sensor system, the control system may determine whether the object is a finger or a non-finger object. The control system may determine whether the fingerprint sensor data includes fingerprint image information of at least an image quality threshold.
    Type: Application
    Filed: August 31, 2014
    Publication date: March 3, 2016
    Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
  • Patent number: 9195879
    Abstract: A fingerprint sensing apparatus may include a fingerprint sensor system and a control system capable of receiving fingerprint sensor data from the fingerprint sensor system. The control system may be capable of determining fingerprint sensor data blocks for at least a portion of the fingerprint sensor data and of calculating statistical variance values for fingerprint sensor data corresponding to each of the fingerprint sensor data blocks. The control system may be capable of determining, based at least in part the statistical variance values, whether an object is positioned proximate a portion of the fingerprint sensor system.
    Type: Grant
    Filed: August 31, 2014
    Date of Patent: November 24, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
  • Publication number: 20150111537
    Abstract: A signal may be emitted by an emitter or transducer. The signal may be sensed by a sensor, such as an accelerometer. Features of a body part or portion may be one of detected, extracted, or constructed from the sensed signal. It may be determined whether the body part or portion matches that of a user, such as an authorized user, based on the features.
    Type: Application
    Filed: July 31, 2012
    Publication date: April 23, 2015
    Inventors: Esra Vural, Mark W. Van Order, Peter S. Nyholm, Stephanie SCHUCKERS