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).
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Patent number: 10503948Abstract: 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: GrantFiled: March 5, 2015Date of Patent: December 10, 2019Assignee: QUALCOMM IncorporatedInventors: 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
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Patent number: 9953233Abstract: 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: GrantFiled: March 28, 2017Date of Patent: April 24, 2018Assignee: QUALCOMM IncorporatedInventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, David William Burns, Suryaprakash Ganti, John Keith Schneider, Saurav Bandyopadhyay, Jin Gu
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Patent number: 9911184Abstract: 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: GrantFiled: October 30, 2015Date of Patent: March 6, 2018Assignee: QUALCOMM IncorporatedInventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
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Publication number: 20170200054Abstract: 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: ApplicationFiled: March 28, 2017Publication date: July 13, 2017Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, David William Burns, Suryaprakash Ganti, John Keith Schneider, Saurav Kumar Bandyopadhyay, Jin Gu
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Patent number: 9665763Abstract: 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: GrantFiled: August 31, 2014Date of Patent: May 30, 2017Assignee: QUALCOMM IncorporatedInventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
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Patent number: 9639765Abstract: 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: GrantFiled: September 3, 2015Date of Patent: May 2, 2017Assignee: QUALCOMM IncorporatedInventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, David William Burns, Suryaprakash Ganti, John Keith Schneider, Saurav Bandyopadhyay, Jin Gu
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Patent number: 9633269Abstract: 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: GrantFiled: September 3, 2015Date of Patent: April 25, 2017Assignee: QUALCOMM IncorporatedInventors: Jin Gu, Ming Yu Chen, Eliza Yingzi Du, Kwokleung Chan, Esra Vural, Saurav Bandyopadhyay
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Patent number: 9609511Abstract: 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: GrantFiled: July 31, 2012Date of Patent: March 28, 2017Assignee: Hewlett-Packard Development Company, L.P.Inventors: Esra Vural, Mark W Van Order, Peter S Nyholm, Stephanie Schuckers
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Patent number: 9582705Abstract: 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: GrantFiled: August 31, 2014Date of Patent: February 28, 2017Assignee: QUALCOMM IncorporatedInventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
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Publication number: 20160379038Abstract: 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: ApplicationFiled: June 23, 2016Publication date: December 29, 2016Inventors: Esra VURAL, Eliza Yingzi DU
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Publication number: 20160350573Abstract: 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: ApplicationFiled: March 5, 2015Publication date: December 1, 2016Applicant: Qualcomm IncorporatedInventors: 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
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Publication number: 20160070967Abstract: 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: ApplicationFiled: September 3, 2015Publication date: March 10, 2016Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, David William Burns, Suryaprakash Ganti, John Keith Schneider, Saurav Bandyopadhyay, Jin Gu
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Publication number: 20160070968Abstract: 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: ApplicationFiled: September 3, 2015Publication date: March 10, 2016Inventors: Jin Gu, Ming Yu Chen, Eliza Yingzi Du, Kwokleung Chan, Esra Vural, Saurav Bandyopadhyay
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Publication number: 20160063300Abstract: 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: ApplicationFiled: August 31, 2014Publication date: March 3, 2016Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
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Publication number: 20160063294Abstract: 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: ApplicationFiled: August 31, 2014Publication date: March 3, 2016Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
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Publication number: 20160063296Abstract: 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: ApplicationFiled: October 30, 2015Publication date: March 3, 2016Inventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleong Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
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Patent number: 9195879Abstract: 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: GrantFiled: August 31, 2014Date of Patent: November 24, 2015Assignee: QUALCOMM IncorporatedInventors: Eliza Yingzi Du, Ming Yu Chen, Esra Vural, Kwokleung Chan, Suryaprakash Ganti, John Keith Schneider, David William Burns
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Publication number: 20150111537Abstract: 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: ApplicationFiled: July 31, 2012Publication date: April 23, 2015Inventors: Esra Vural, Mark W. Van Order, Peter S. Nyholm, Stephanie SCHUCKERS