Patents by Inventor Ketan B. Patel

Ketan B. Patel 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: 10516955
    Abstract: Systems and methods according to one or more embodiments are provided for correcting a current measurement through a speaker in an audio system. In one example, a system for driving a speaker includes an output stage configured to drive a current through the speaker. The system further includes a first and second current sensor coupled to the output stage and configured to measure a positive current including a first measurement error and a negative current including a second measurement error through the speaker, respectively. The system further includes a processing block coupled to the first and second current sensors to receive the measured positive and negative current signals and configured to add a positive offset value to an input of each first and second current sensors, determine the first and second measurement errors, and correct a measured current using the positive and negative currents and the determined first and second measurement errors.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: December 24, 2019
    Assignee: SYNAPTICS INCORPORATED
    Inventors: Dan Shen, Davide Cartasegna, Ketan B. Patel, Lorenzo Crespi
  • Publication number: 20180288543
    Abstract: Systems and methods according to one or more embodiments are provided for correcting a current measurement through a speaker in an audio system. In one example, a system for driving a speaker includes an output stage configured to drive a current through the speaker. The system further includes a first and second current sensor coupled to the output stage and configured to measure a positive current including a first measurement error and a negative current including a second measurement error through the speaker, respectively. The system further includes a processing block coupled to the first and second current sensors to receive the measured positive and negative current signals and configured to add a positive offset value to an input of each first and second current sensors, determine the first and second measurement errors, and correct a measured current using the positive and negative currents and the determined first and second measurement errors.
    Type: Application
    Filed: April 2, 2018
    Publication date: October 4, 2018
    Inventors: Dan Shen, Davide Cartasegna, Ketan B. Patel, Lorenzo Crespi
  • Patent number: 9264043
    Abstract: A level shifter comprising a first driver transistor for receiving an input signal. A gate-controlled transistor coupled to the first driver transistor. A second driver transistor coupled to the gate controlled transistor. An output coupled to the second driver transistor, wherein the gate-controlled transistor is for receiving a predetermined gate voltage when the output voltage exceeds a predetermined value.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: February 16, 2016
    Assignee: CONEXANT SYSTEMS, INC.
    Inventors: Lorenzo Crespi, Christian Larsen, Lakshmi P. Murukutla, Ketan B. Patel
  • Patent number: 8875280
    Abstract: Embodiments of the present invention provide an approach for protecting electronic devices against the use of unqualified and/or unauthorized (e.g., “grey market”) hardware components. Specifically, in a typical embodiment, a hardware component that a user is attempting to use with an electronic device will be detected. Then, the device information associated with the hardware component (e.g., serial number, vital product data (VPD), etc.) will be identified from the hardware component (e.g., as stored therein).
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: October 28, 2014
    Assignee: International Business Machines Corporation
    Inventors: Tu T. Dang, Michael C. Elles, Mark G. Noll, Ketan B. Patel, Danny L. Woodruff
  • Patent number: 8866629
    Abstract: A method, computer program product, and computer system for monitoring for electrostatic discharge (ESD) events. An ESD monitor for potential of electrostatic discharge events in a sensed area through a plurality of ESD sensors coupled to the ESD monitor. The monitor senses for a charge level which could cause ESD event and entry of an operator into a sensed area. If an ESD event is detected, issue an ESD event alert to the operator and recording data to a tangible storage device; determine environmental factors at time and date of the ESD event; compare the ESD event and associated environmental factors to other ESD events with associated environmental factors; and determine if a correlation exists between the ESD event and associated environmental factors and the other ESD events with associated environmental factors.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: October 21, 2014
    Assignee: International Business Machines Corporation
    Inventors: Paul L. Anderson, Anouar Braham, Tu T. Dang, Michael C. Elles, Ketan B. Patel
  • Publication number: 20140176223
    Abstract: A level shifter comprising a first driver transistor for receiving an input signal. A gate-controlled transistor coupled to the first driver transistor. A second driver transistor coupled to the gate controlled transistor. An output coupled to the second driver transistor, wherein the gate-controlled transistor is for receiving a predetermined gate voltage when the output voltage exceeds a predetermined value.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 26, 2014
    Applicant: CONEXANT SYSTEMS, INC.
    Inventors: Lorenzo Crespi, Christian Larsen, Lakshmi P. Murukutla, Ketan B. Patel
  • Patent number: 8738490
    Abstract: A method for determining a margin requirement associated with a plurality of financial instruments within a portfolio is disclosed. The method includes receiving a plurality of data associated with the plurality of financial instruments within the portfolio, calculating a maximum risk margin for each of the plurality of risk factors such that the maximum risk margin for each of the plurality of risk factors is determined based on the plurality of data, and calculating a total multi-factor risk margin based on maximum risk margin for each of the plurality of risk factors.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: May 27, 2014
    Assignee: Chicago Mercantile Exchange Inc.
    Inventors: Michal Koblas, Muhammed Hadi, Ketan B. Patel, Ankeet Dedhia, Mu Wang
  • Patent number: 8738509
    Abstract: A system and method for determining a margin requirement associated with a plurality of financial instruments within a portfolio is disclosed.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: May 27, 2014
    Assignee: Chicago Mercantile Exchange, Inc.
    Inventors: Michal Koblas, Mohammed Hadi, Ketan B. Patel, Dmitriy Glinberg
  • Patent number: 8659342
    Abstract: A level shifter comprising a first driver transistor receiving an input signal. A gate-controlled transistor coupled to the first driver transistor. A second driver transistor coupled to the gate controlled transistor. An output coupled to the second driver transistor, wherein the gate-controlled transistor is for receiving a predetermined gate voltage when the output voltage exceeds a predetermined value.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: February 25, 2014
    Assignee: Conexant Systems, Inc.
    Inventors: Lorenzo Crespi, Christian Larsen, Lakshmi P. Murukutla, Ketan B. Patel
  • Publication number: 20130297534
    Abstract: A system and method for determining a margin requirement associated with a plurality of financial instruments within a portfolio is disclosed.
    Type: Application
    Filed: July 9, 2013
    Publication date: November 7, 2013
    Inventors: Michal Koblas, Mohammed Hadi, Ketan B. Patel, Dmitriy Glinberg
  • Patent number: 8484123
    Abstract: A system and method for determining a margin requirement associated with a plurality of financial instruments within a portfolio is disclosed.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: July 9, 2013
    Assignee: Chicago Mercantile Exchange, Inc.
    Inventors: Michal Koblas, Mohammed Hadi, Ketan B. Patel, Dmitiry Glinberg
  • Publication number: 20130141829
    Abstract: An apparatus for detecting and controlling current. A current detector for generating a first value that represents an amount of current being delivered to a device. A current limit circuit for generating a second value that represents a maximum permitted current level from a current source. A current controller for controlling the amount of current drawn by the device if the first value exceeds the second value.
    Type: Application
    Filed: September 24, 2012
    Publication date: June 6, 2013
    Inventors: James Bunde Villadsen Skov, Lorenzo Crespi, Ketan B. Patel
  • Publication number: 20130113541
    Abstract: A level shifter comprising a first driver transistor receiving an input signal. A gate-controlled transistor coupled to the first driver transistor. A second driver transistor coupled to the gate controlled transistor. An output coupled to the second driver transistor, wherein the gate-controlled transistor is for receiving a predetermined gate voltage when the output voltage exceeds a predetermined value.
    Type: Application
    Filed: November 4, 2011
    Publication date: May 9, 2013
    Inventors: Lorenzo Crespi, Christian Larsen, Lakshmi P. Murukutla, Ketan B. Patel
  • Publication number: 20130097694
    Abstract: Embodiments of the present invention provide an approach for protecting electronic devices against the use of unqualified and/or unauthorized (e.g., “grey market”) hardware components. Specifically, in a typical embodiment, a hardware component that a user is attempting to use with an electronic device will be detected. Then, the device information associated with the hardware component (e.g., serial number, vital product data (VPD), etc.) will be identified from the hardware component (e.g., as stored therein).
    Type: Application
    Filed: October 14, 2011
    Publication date: April 18, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Tu T. Dang, Michael C. Elles, Mark G. Noll, Ketan B. Patel, Danny L. Woodruff
  • Patent number: 8410839
    Abstract: A battery assisted level shifter comprises a pull up transistor pulling up an output when a received input signal is high, a pull down transistor pulling down the output when the received input signal is low, and a battery element to provide voltage offsets. The battery element can be implemented using one or more pull-up transistors for assisting with pulling up the output. The level shifter can be used in class-D amplifiers, DC-DC power converters and interfaces between circuits having different reference voltages.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: April 2, 2013
    Assignee: Conexant Systems, Inc.
    Inventors: Christian Larsen, Lorenzo Crespi, Ketan B. Patel
  • Publication number: 20130073479
    Abstract: A method for determining a margin requirement associated with a plurality of financial instruments within a portfolio is disclosed. The method includes receiving a plurality of data associated with the plurality of financial instruments within the portfolio, calculating a maximum risk margin for each of the plurality of risk factors such that the maximum risk margin for each of the plurality of risk factors is determined based on the plurality of data, and calculating a total multi-factor risk margin based on maximum risk margin for each of the plurality of risk factors.
    Type: Application
    Filed: January 30, 2012
    Publication date: March 21, 2013
    Inventors: Michal Koblas, Muhammed Hadi, Ketan B. Patel, Ankeet Dedhia, Mu Wang
  • Publication number: 20120283971
    Abstract: A method, computer program product, and computer system for monitoring for electrostatic discharge (ESD) events. An ESD monitor for potential of electrostatic discharge events in a sensed area through a plurality of ESD sensors coupled to the ESD monitor. The monitor senses for a charge level which could cause ESD event and entry of an operator into a sensed area. If an ESD event is detected, issue an ESD event alert to the operator and recording data to a tangible storage device; determine environmental factors at time and date of the ESD event; compare the ESD event and associated environmental factors to other ESD events with associated environmental factors; and determine if a correlation exists between the ESD event and associated environmental factors and the other ESD events with associated environmental factors.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 8, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES
    Inventors: Paul L. Anderson, Anouar Braham, Tu T. Dang, Michael C. Elles, Ketan B. Patel
  • Patent number: 8274772
    Abstract: An apparatus for detecting and controlling current. A current detector for generating a first value that represents an amount of current being delivered to a device. A current limit circuit for generating a second value that represents a maximum permitted current level from a current source. A current controller for controlling the amount of current drawn by the device if the first value exceeds the second value.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: September 25, 2012
    Assignee: Conexant Systems, Inc.
    Inventors: James Bunde Villadsen Skov, Lorenzo Crespi, Ketan B. Patel
  • Publication number: 20120143571
    Abstract: A computer specifies a substrate comprising a first side opposite a second side. The computer specifies a first plurality of flexible pins protruding from the first side of the substrate, the first plurality of pins for installing in a first plurality of pad connectors of a pinless socket. The computer specifies a second plurality of flexible pins protruding from the second side of the substrate, the second plurality of pins for installing in a second plurality of pad connectors of a pinless integrated circuit component, wherein the first selection of flexible pins are for electrical connection to the second plurality of flexible pins through the substrate to provide electrical contact points between the pinless socket and the pinless integrated circuit component.
    Type: Application
    Filed: January 6, 2012
    Publication date: June 7, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Robert L. Ayers, SR., Tu T. Dang, Michael C. Elles, Ketan B. Patel, James S. Womble
  • Patent number: D913455
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: March 16, 2021
    Inventor: Ketan B. Patel