Patents by Inventor Sarangan Narasimhan

Sarangan Narasimhan 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).

  • Publication number: 20220036407
    Abstract: A method for increasing user engagement with advertising, for a user consuming streamed user-selected content, includes: selecting a sequence of previously produced advertisements, beginning with a first advertisement followed by a second advertisement, for the user; generating a first challenge relating to each advertisement, the generation occurring subsequent to and independent of the production of that advertisement. At a break in streaming the selected content to a device through which the user is experiencing the user-selected content, the first advertisement is streamed to the device; and the corresponding first challenge is presented to the user on the device. The method responds to a correct answer provided by the user, within a first set time interval, to the first challenge by terminating the break and resuming streaming of the user-selected content to the device.
    Type: Application
    Filed: August 2, 2020
    Publication date: February 3, 2022
    Inventor: Sarangan Narasimhan
  • Patent number: 10546223
    Abstract: Devices, systems, and methods facilitate enrollment of authenticating biometric data for authenticating an authorized user via a biometric sensor. Included devices transmit power to a sensor-enabled device that does not have an independent power source without transmitting data to or from the device. Data input devices coupled to the biometric sensor enable user input of non-biometric data, such as an activation code, via the biometric sensor. For biometric sensors comprising fingerprint sensors, finger guides position a finger to contact the sensor at a desired orientation. Systems and methods allow for enrollment of one or more authenticating biometric data templates with or without requiring input of non-biometric authentication data, such as an activation code.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: January 28, 2020
    Assignee: IDEX Biometrics ASA
    Inventors: Fred G. Benkley, III, Peter Joseph Commerford, Jeffrey Joseph Buxton, Anne L. McAleer, Sarangan Narasimhan
  • Publication number: 20190065921
    Abstract: Devices, systems, and methods facilitate enrollment of authenticating biometric data for authenticating an authorized user via a biometric sensor. Included devices transmit power to a sensor-enabled device that does not have an independent power source without transmitting data to or from the device. Data input devices coupled to the biometric sensor enable user input of non-biometric data, such as an activation code, via the biometric sensor. For biometric sensors comprising fingerprint sensors, finger guides position a finger to contact the sensor at a desired orientation. Systems and methods allow for enrollment of one or more authenticating biometric data templates with or without requiring input of non-biometric authentication data, such as an activation code.
    Type: Application
    Filed: October 30, 2018
    Publication date: February 28, 2019
    Applicant: IDEX ASA
    Inventors: Fred G. BENKLEY, III, Peter Joseph COMMERFORD, Jeffrey Joseph BUXTON, Anne L. MCALEER, Sarangan NARASIMHAN
  • Patent number: 9594465
    Abstract: Various embodiments of a capacitive touchscreen system and corresponding methods are described. A touchscreen controller is operably connected to a first plurality of drive electrodes, a second plurality of sense electrodes, and a host processor. The touchscreen controller has computer-readable button group programming instructions and data loaded into a first memory portion thereof from the host processor that comprise steps for sensing and arbitrating among touches occurring on and within a first plurality of buttons. Firmware instructions and data are loaded into a second portion of the memory of the touchscreen controller. The first plurality of buttons is arranged in a first group on the touchscreen, and the first group is located within a first portion of the touchscreen. Capacitive sensing of touches occurring on and within at least second portions of the touchscreen that are located outside the first portion of the touchscreen are controlled by the firmware instructions.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: March 14, 2017
    Assignee: PIXART IMAGING, INC.
    Inventors: David Townsley, Sarangan Narasimhan
  • Patent number: 9075484
    Abstract: According to one embodiment, there is provided a mutual capacitance touchscreen comprising a first set of electrically conductive traces arranged in rows or columns and a second set of electrically conductive traces arranged in rows or columns arranged at right angles with respect to the rows or columns of the first set, where the first and second sets of traces are electrically insulated from and interdigitated respecting one another, and gaps between the first and second sets of traces form boundaries between the first and second sets of traces that undulate and that are not straight or linear. Other embodiments of a mutual capacitance touchscreen are also disclosed, such as “mini-diamond” sensor array patterns and sensor array patterns that may be manufactured at low cost.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: July 7, 2015
    Assignee: PixArt Imaging Inc.
    Inventors: Robert Ritter, Kenneth Brewer, Vitali Souchkov, Sarangan Narasimhan
  • Publication number: 20150002468
    Abstract: Various embodiments of a capacitive touchscreen system and corresponding methods are described. A touchscreen controller is operably connected to a first plurality of drive electrodes, a second plurality of sense electrodes, and a host processor. The touchscreen controller has computer-readable button group programming instructions and data loaded into a first memory portion thereof from the host processor that comprise steps for sensing and arbitrating among touches occurring on and within a first plurality of buttons. Firmware instructions and data are loaded into a second portion of the memory of the touchscreen controller. The first plurality of buttons is arranged in a first group on the touchscreen, and the first group is located within a first portion of the touchscreen. Capacitive sensing of touches occurring on and within at least second portions of the touchscreen that are located outside the first portion of the touchscreen are controlled by the firmware instructions.
    Type: Application
    Filed: September 16, 2014
    Publication date: January 1, 2015
    Inventors: David Townsley, Sarangan Narasimhan
  • Patent number: 8866762
    Abstract: Various embodiments of a capacitive touchscreen system and corresponding methods are described. A touchscreen controller is operably connected to a first plurality of drive electrodes, a second plurality of sense electrodes, and a host processor. The touchscreen controller has computer-readable button group programming instructions and data loaded into a first memory portion thereof from the host processor that comprise steps for sensing and arbitrating among touches occurring on and within a first plurality of buttons. Firmware instructions and data are loaded into a second portion of the memory of the touchscreen controller. The first plurality of buttons is arranged in a first group on the touchscreen, and the first group is located within a first portion of the touchscreen. Capacitive sensing of touches occurring on and within at least second portions of the touchscreen that are located outside the first portion of the touchscreen are controlled by the firmware instructions.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: October 21, 2014
    Assignee: Pixart Imaging Inc.
    Inventors: David Townsley, Sarangan Narasimhan
  • Patent number: 8810532
    Abstract: A test system for testing a capacitive-sense touchscreen is disclosed. Specifically, the test system may be incorporated within a controller that is also used to control operations of the touchscreen. The controller may include an Integrated Circuit and the test system may correspond to a test capacitor embedded into the Integrated Circuit.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: August 19, 2014
    Assignee: Pixart Imaging, Inc.
    Inventors: Sarangan Narasimhan, Mercedes E. Gil
  • Patent number: 8736570
    Abstract: Disclosed are various embodiments of methods and devices for operating a processor or host controller in a mutual capacitance sensing device. Methods and devices for sorting motion reports provided to a host controller or other processor in a mutual capacitance sensing device, reporting touch points to a host controller or other processor in a mutual capacitance sensing device, improving noise robustness and navigation performance in a mutual capacitance sensing device, determining a touch area of a user's finger on a touch panel or touchpad of a mutual capacitance sensing device, and avoiding false wakeups and minimizing power consumption in a mutual capacitance sensing device having a touch panel or touchpad are described.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: May 27, 2014
    Assignee: PixArt Imaging Inc.
    Inventors: Thomas Murphy, Kevin Rathburn, Keen Hun Leong, Sarangan Narasimhan
  • Patent number: 8669960
    Abstract: Disclosed are various embodiments of methods and devices for operating a processor or host controller in a mutual capacitance sensing device. Methods and devices for sorting motion reports provided to a host controller or other processor in a mutual capacitance sensing device, reporting touch points to a host controller or other processor in a mutual capacitance sensing device, improving noise robustness and navigation performance in a mutual capacitance sensing device, determining a touch area of a user's finger on a touch panel or touchpad of a mutual capacitance sensing device, and avoiding false wakeups and minimizing power consumption in a mutual capacitance sensing device having a touch panel or touchpad are described.
    Type: Grant
    Filed: August 11, 2013
    Date of Patent: March 11, 2014
    Assignee: PixArt Imaging Inc.
    Inventors: Thomas Murphy, Kevin Rathburn, Keen Hun Leong, Sarangan Narasimhan
  • Publication number: 20130321338
    Abstract: Disclosed are various embodiments of methods and devices for operating a processor or host controller in a mutual capacitance sensing device. Methods and devices for sorting motion reports provided to a host controller or other processor in a mutual capacitance sensing device, reporting touch points to a host controller or other processor in a mutual capacitance sensing device, improving noise robustness and navigation performance in a mutual capacitance sensing device, determining a touch area of a user's finger on a touch panel or touchpad of a mutual capacitance sensing device, and avoiding false wakeups and minimizing power consumption in a mutual capacitance sensing device having a touch panel or touchpad are described.
    Type: Application
    Filed: August 11, 2013
    Publication date: December 5, 2013
    Inventors: Thomas Murphy, Kevin Rathburn, Keen Hun Leong, Sarangan Narasimhan
  • Patent number: 8553009
    Abstract: Disclosed are various embodiments of methods and devices for operating a processor or host controller in a mutual capacitance sensing device. Methods and devices for sorting motion reports provided to a host controller or other processor in a mutual capacitance sensing device, reporting touch points to a host controller or other processor in a mutual capacitance sensing device, improving noise robustness and navigation performance in a mutual capacitance sensing device, determining a touch area of a user's finger on a touch panel or touchpad of a mutual capacitance sensing device, and avoiding false wakeups and minimizing power consumption in a mutual capacitance sensing device having a touch panel or touchpad are described.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: October 8, 2013
    Assignee: PixArt Imaging Inc.
    Inventors: Thomas Murphy, Kevin Rathburn, Keen Hun Leong, Sarangan Narasimhan
  • Patent number: 8448226
    Abstract: A coordinate-based computer authentication system (1) and methods have been disclosed. A method comprises providing instructions to present a graphical interface (1, 121) on a display, wherein the graphical interface includes a plurality of graphical images. Selection information is received that corresponds to the selection of one or more of the plurality of graphical images. The selection information is authenticated (1, 110).
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: May 21, 2013
    Inventor: Sarangan Narasimhan
  • Publication number: 20130002599
    Abstract: Various embodiments of a capacitive touchscreen system and corresponding methods are described. A touchscreen controller is operably connected to a first plurality of drive electrodes, a second plurality of sense electrodes, and a host processor. The touchscreen controller has computer-readable button group programming instructions and data loaded into a first memory portion thereof from the host processor that comprise steps for sensing and arbitrating among touches occurring on and within a first plurality of buttons. Firmware instructions and data are loaded into a second portion of the memory of the touchscreen controller. The first plurality of buttons is arranged in a first group on the touchscreen, and the first group is located within a first portion of the touchscreen. Capacitive sensing of touches occurring on and within at least second portions of the touchscreen that are located outside the first portion of the touchscreen are controlled by the firmware instructions.
    Type: Application
    Filed: July 1, 2011
    Publication date: January 3, 2013
    Applicant: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: David Townsley, Sarangan Narasimhan
  • Patent number: 8334849
    Abstract: Disclosed are various embodiments of methods and devices for operating a processor or host controller in a mutual capacitance sensing device. Methods and devices for sorting motion reports provided to a host controller or other processor in a mutual capacitance sensing device, reporting touch points to a host controller or other processor in a mutual capacitance sensing device, improving noise robustness and navigation performance in a mutual capacitance sensing device, determining a touch area of a user's finger on a touch panel or touchpad of a mutual capacitance sensing device, and avoiding false wakeups and minimizing power consumption in a mutual capacitance sensing device having a touch panel or touchpad are described.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: December 18, 2012
    Assignee: PixArt Imaging Inc.
    Inventors: Thomas Murphy, Kevin Rathburn, Keen Hun Leong, Sarangan Narasimhan
  • Publication number: 20120268413
    Abstract: A test system for testing a capacitive-sense touchscreen is disclosed. Specifically, the test system may be incorporated within a controller that is also used to control operations of the touchscreen. The controller may include an Integrated Circuit and the test system may correspond to a test capacitor embedded into the Integrated Circuit.
    Type: Application
    Filed: April 22, 2011
    Publication date: October 25, 2012
    Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.
    Inventors: Sarangan Narasimhan, Mercedes E. Gil
  • Patent number: 8279197
    Abstract: Several different methods of testing the integrity and proper operation of the drive and sense electrodes in a mutual capacitance sensing device such as a touchscreen or touchpad are disclosed herein. According to one embodiment, measured values of mutual capacitance corresponding to individual cells in a mutual capacitance sensing device are compared to one another and to predetermined thresholds. The results of the comparison are employed to determine whether any of the traces forming the electrodes in the device are defective. By way of example, traces can be defective if they are broken, too thin, too thick, or shorted together. The various embodiments of the methods disclosed herein may be used for touchscreen or touchpad quality control in a manufacturing setting, or may be used to test touchscreens or touchpads that have already been incorporated into electronic devices. The various methods disclosed herein lower manufacturing costs, increase product quality and yield, and may be carried out quickly.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: October 2, 2012
    Assignee: PixArt Imaging Inc.
    Inventors: Thomas Murphy, Kevin Rathburn, Keen Hun Leong, Sarangan Narasimhan
  • Publication number: 20100302201
    Abstract: According to one embodiment, there is provided a mutual capacitance touchscreen comprising a first set of electrically conductive traces arranged in rows or columns and a second set of electrically conductive traces arranged in rows or columns arranged at right angles with respect to the rows or columns of the first set, where the first and second sets of traces are electrically insulated from and interdigitated respecting one another, and gaps between the first and second sets of traces form boundaries between the first and second sets of traces that undulate and that are not straight or linear. Other embodiments of a mutual capacitance touchscreen are also disclosed, such as “mini-diamond” sensor array patterns and sensor array patterns that may be manufactured at low cost.
    Type: Application
    Filed: June 2, 2009
    Publication date: December 2, 2010
    Applicant: Avago Technologies ECBU (Singapore) Pte. Ltd.
    Inventors: Robert Ritter, Kenneth Brewer, Vitali Souchkov, Sarangan Narasimhan
  • Publication number: 20080297174
    Abstract: A capacitive sensing device comprises a set of sensing elements disposed in a two-dimensional arrangement. The two-dimensional arrangement is comprised of full elements and partial elements. A plurality of the partial elements are proximate at least one edge of the two-dimensional arrangement. Additionally, a partial element of the partial elements is smaller in element area than a full element of the full elements. An edge electrode trace of the capacitive sensing device is comprised of a selectively coupled plurality of the partial elements. The selectively coupled plurality of the partial elements resides proximate a first edge of the two-dimensional arrangement.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 4, 2008
    Inventors: Sarangan Narasimhan, Leonard Ye
  • Publication number: 20080184363
    Abstract: A coordinate-based computer authentication system (1) and methods have been disclosed. A method comprises providing instructions to present a graphical interface (1, 121) on a display, wherein the graphical interface includes a plurality of graphical images. Selection information is received that corresponds to the selection of one or more of the plurality of graphical images. The selection information is authenticated (1, 110).
    Type: Application
    Filed: May 11, 2006
    Publication date: July 31, 2008
    Inventor: Sarangan Narasimhan