Patents by Inventor Suryaprakash Ganti

Suryaprakash Ganti 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: 10146929
    Abstract: Techniques described here use variations in the sensor to generate an identifier for the sensor. Each sensor may be comprised of sub-sensing units, called pixels that may demonstrate variation in their sensing capability from one pixel to another. Embodiments of the invention, describe a method for using the relative variance of each pixel (relative to the whole sensor or/and a portion of the sensor) in generating an identifier for the sensor. In one embodiment, the method may obtain information associated with a plurality of pixels from a sensor, detect variations in the information associated for each of the pixels from a subset of the plurality of pixels and generate an identifier for the sensor using the detected variations in the information associated with each of the pixels from the subset of plurality of pixels.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: December 4, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Eliza Yingzi Du, John Keith Schneider, Suryaprakash Ganti
  • Patent number: 10031602
    Abstract: A display array is disclosed. The multifunctional pixel may include a plurality of multifunctional pixels. Each multifunctional pixel can include a red display area, a green display area, and a blue display area, as well as at least one sensor selected from the following sensor types: an ultrasonic sensor, an infrared sensor, a photoelectric sensor, and a capacitive sensor. The blue display area can be smaller than the red display area, or smaller than the green display area, in each of the plurality of multifunctional pixels.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: July 24, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Jack Conway Kitchens, II, John Keith Schneider, David William Burns, Suryaprakash Ganti
  • Patent number: 10001552
    Abstract: A piezoelectric micromechanical ultrasonic transducer (PMUT) includes a diaphragm disposed over a cavity, the diaphragm including a piezoelectric layer stack including a piezoelectric layer, a first electrode electrically coupled with transceiver circuitry, and a second electrode electrically coupled with the transceiver circuitry. The first electrode may be disposed in a first portion of the diaphragm, and the second electrode may be disposed in a second, separate, portion of the diaphragm. Each of the first and the second electrode is disposed on or proximate to a first surface of the piezoelectric layer, the first surface being opposite from the cavity. The PMUT is configured to transmit first ultrasonic signals by way of the first electrode during a first time period and to receive second ultrasonic signals by way of the second electrode during a second time period, the first time period and the second time period being at least partially overlapping.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: June 19, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Hrishikesh Vijaykumar Panchawagh, Hao-Yen Tang, Yipeng Lu, Kostadin Dimitrov Djordjev, Suryaprakash Ganti, David William Burns, Ravindra Vaman Shenoy, Jon Bradley Lasiter, Nai-Kuei Kuo, Firas Sammoura
  • 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: 9945818
    Abstract: Embodiments of an ultrasonic button and methods for using the ultrasonic button are disclosed. In one embodiment, an ultrasonic button may include an ultrasonic transmitter configured to transmit an ultrasonic wave, a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave, a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer, a first matching layer configured to match an acoustic impedance of the platen layer with an acoustic impedance of ridges of a finger, and an ultrasonic sensor array configured to detect the finger using the reflected wave.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: April 17, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Suryaprakash Ganti, Srikanth Chilukuru, Livingstone Song, Kostadin Dimitrov Djordjev, Jack Conway Kitchens, John Schneider, Nicholas Ian Buchan, Leonard Eugene Fennell, Hrishikesh Vijaykumar Panchawagh, Ashish Hinger, Nai-Kuei Kuo, Kollengode Narayanan, Samir Kumar Gupta, Timothy Dickinson, Max Hamel, David William Burns, Muhammed Ibrahim Sezan, Eugene Dantsker
  • Publication number: 20180101711
    Abstract: Systems, methods and apparatus for configuring a fingerprint sensor to operate in a capacitive sensing mode and an ultrasonic sensing mode are disclosed. A fingerprint sensor may be configured to operate in a capacitive sensing mode by driving a sensing electrode using a controller. In some implementations, an object positioned on or near the sensing electrode may be detected using the fingerprint sensor in the capacitive sensing mode, and the controller can drive electrodes of the fingerprint sensor differently to configure the fingerprint sensor to operate in an ultrasonic sensing mode. In some implementations, an applications processor may be instructed to authenticate a fingerprint of the object from image data obtained when the fingerprint sensor is operating in the ultrasonic sensing mode. In some implementations, a display of a mobile device containing the fingerprint sensor may be unlocked, or the mobile device may be woken up when the fingerprint is authenticated.
    Type: Application
    Filed: June 26, 2017
    Publication date: April 12, 2018
    Inventors: Sandeep Louis D'Souza, Vadim Winebrand, Ashish Hinger, Paul Penchin Pan, Meir Agassy, Yizhaq Abudi, Micah Timothy Lawrence, Jong Soo Kim, Sherman Sebastian Antao, Bo-Ren Wang, Masoud Roham, Lennart Karl Mathe, Nathan Felix Altman, Suryaprakash Ganti, David William Burns
  • 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
  • Patent number: 9815087
    Abstract: An apparatus may include a one- or two-dimensional array of micromechanical ultrasonic transducer (PMUT) elements positioned below, beside, with, on, or above a backplane of a visual display. The backplane may be a thin-film transistor (TFT) backplane. The array of PMUT elements may be a piezoelectric micromechanical ultrasonic transducer (PMUT) array or a capacitive micromechanical ultrasonic transducer (CMUT) array. The PMUT array may be configurable to operate in modes corresponding to multiple frequency ranges. When operating in the low-frequency mode, the apparatus may be capable of gesture detection. A high-frequency mode may include a fingerprint sensor mode or a stylus detection mode.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: November 14, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Suryaprakash Ganti, David William Burns, Jonathan Charles Griffiths
  • 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
  • Publication number: 20170199610
    Abstract: A display array is disclosed. The multifunctional pixel may include a plurality of multifunctional pixels. Each multifunctional pixel can include a red display area, a green display area, and a blue display area, as well as at least one sensor selected from the following sensor types: an ultrasonic sensor, an infrared sensor, a photoelectric sensor, and a capacitive sensor. The blue display area can be smaller than the red display area, or smaller than the green display area, in each of the plurality of multifunctional pixels.
    Type: Application
    Filed: March 24, 2017
    Publication date: July 13, 2017
    Inventors: Jack Conway Kitchens, II, John Keith Schneider, David William Burns, Suryaprakash Ganti
  • 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: 9654978
    Abstract: A mobile device may include a plurality of sensors and a processor. The processor may be configured to determine trust data for an asset based upon inputs from the plurality of sensors, determine whether an asset is accessible or not accessible based upon evaluating the trust data with a trust determination algorithm, and continuously update the trust data to continue to allow access to the asset or revoke access to the asset based upon the inputs from the plurality of sensors.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: May 16, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Laurence Lundblade, Mark Bapst, George Michael Milikich, Jon Azen, Ian Brettell, Eliza Yingzi Du, Jonathan Griffiths, Suryaprakash Ganti, Samir Gupta, David William Burns, Muhammed Ibrahim Sezan
  • 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
  • Publication number: 20170110504
    Abstract: An ultrasonic sensor pixel includes a substrate, a piezoelectric micromechanical ultrasonic transducer (PMUT) and a sensor pixel circuit. The PMUT includes a piezoelectric layer stack including a piezoelectric layer disposed over a cavity, the cavity being disposed between the piezoelectric layer stack and the substrate, a reference electrode disposed between the piezoelectric layer and the cavity, and one or both of a receive electrode and a transmit electrode disposed on or proximate to a first surface of the piezoelectric layer, the first surface being opposite from the cavity. The sensor pixel circuit is electrically coupled with one or more of the reference electrode, the receive electrode and the transmit electrode and the PMUT and the sensor pixel circuit are integrated with the sensor pixel circuit on the substrate.
    Type: Application
    Filed: October 12, 2016
    Publication date: April 20, 2017
    Inventors: Hrishikesh Vijaykumar Panchawagh, Suryaprakash Ganti, Kostadin Dimitrov Djordjev, David William Burns, Timothy Alan Dickinson, Donald William Kidwell, JR., Ravindra Vaman Shenoy, Jon Bradley Lasiter, Hao-Yen Tang, Yipeng Lu
  • Patent number: 9606606
    Abstract: A display array is disclosed. The multifunctional pixel may include a plurality of multifunctional pixels. Each multifunctional pixel can include a red display area, a green display area, and a blue display area, as well as at least one sensor selected from the following sensor types: an ultrasonic sensor, an infrared sensor, a photoelectric sensor, and a capacitive sensor. The blue display area can be smaller than the red display area, or smaller than the green display area, in each of the plurality of multifunctional pixels.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: March 28, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Jack Conway Kitchens, II, John Keith Schneider, David William Burns, Suryaprakash Ganti
  • 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
  • Patent number: 9551783
    Abstract: A display device has a visual display capable of providing an image and an ultrasonic sensor array attached to a backside component of the visual display. The ultrasonic sensor array may be an ultrasonic area array sensor. For example, the backside component may be a backlight, an optical waveguide, or a display TFT.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: January 24, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: John K. Schneider, Jack C. Kitchens, Stephen M. Gojevic, Timothy A. Dickinson, Samir K. Gupta, Kostadin D. Djordjev, David William Burns, Leonard E. Fennell, Suryaprakash Ganti
  • Patent number: 9494995
    Abstract: A method is disclosed, including detecting a signal representative of an object with a piezoelectric device. A display is powered up from a sleep mode based upon the detected signal. The display can be powered up based upon a comparison of the signal to a threshold value. The threshold value can be a predetermined value or based upon a previous signal detected by the piezoelectric device or a previous signal detected by the piezoelectric device.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: November 15, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Jack Conway Kitchens, II, John Keith Schneider, David William Burns, Suryaprakash Ganti
  • Patent number: 9465429
    Abstract: A multifunctional pixel is disclosed. The multifunctional pixel may include a display pixel, a photoelectric sensor, and a second sensor. The second sensor may include one of the following: an ultrasonic sensor and an infrared sensor. The display pixel, the photoelectric sensor, and the second sensor may be located in the multifunctional pixel.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: October 11, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Jack Conway Kitchens, II, John Keith Schneider, David William Burns, Suryaprakash Ganti
  • Publication number: 20160227411
    Abstract: A mobile device may include a plurality of sensors and a processor. The processor may be configured to determine trust data for an asset based upon inputs from the plurality of sensors, determine whether an asset is accessible or not accessible based upon evaluating the trust data with a trust determination algorithm, and continuously update the trust data to continue to allow access to the asset or revoke access to the asset based upon the inputs from the plurality of sensors.
    Type: Application
    Filed: April 8, 2015
    Publication date: August 4, 2016
    Inventors: Laurence LUNDBLADE, Mark BAPST, George Michael MILIKICH, Jon Azen, Ian BRETTELL, Eliza Yingzi DU, Jonathan GRIFFITHS, Suryaprakash GANTI, Samir GUPTA, David William Burns, Muhammed Ibrahim SEZAN