Patents by Inventor Suraj Nair

Suraj Nair 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: 20170234920
    Abstract: The subject matter of this specification can be embodied in, among other things, a method that includes evaluating an analog electrical current waveform, determining a Boolean waveform based on the evaluated analog electrical current waveform, determining a collection of one or more first durations based on one or more on times identified from the Boolean waveform, determining a collection of one or more second durations based on one or more off times identified from the Boolean waveform, comparing the first durations and the second durations, determining, based on the comparing, an event based on the comparing, identifying a time at which the event occurred, and providing the time as a completion time.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 17, 2017
    Inventors: Suraj Nair, Doyle Kent Stewart
  • Patent number: 8813046
    Abstract: A system and computer-implemented method for transforming source code in an original natively encoded format to a locale neutral format, wherein data types and functions in the original format are estimated for compliance with the locale neutral format and an estimation is made as to the amount of code conversions necessary to comply with the locale neutral format. In addition, image files referenced by the source code is analyzed and embedded text extracted for enabling translation during the localization process.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 19, 2014
    Assignee: Infosys Limited
    Inventors: Suraj Nair, Krishna Markande, Aviraj Singh
  • Publication number: 20130254752
    Abstract: A system and computer-implemented method for transforming source code in an original natively encoded format to a locale neutral format, wherein data types and functions in the original format are estimated for compliance with the locale neutral format and an estimation is made as to the amount of code conversions necessary to comply with the locale neutral format.
    Type: Application
    Filed: June 21, 2012
    Publication date: September 26, 2013
    Applicant: INFOSYS LIMITED
    Inventors: Suraj Nair, Krishna Markande, Aviraj Singh
  • Patent number: 7798125
    Abstract: A system and method for controlling knock in a lean burn internal combustion (IC) engine includes a spark plug having an electrode, and an electrical circuit configured to provide a first voltage to the electrode and detect an ion current during a thermal-ionization phase of the combustion process, and provide a second voltage to the electrode to create a spark and initiate a combustion process within a combustion chamber. The engine includes a controller configured to monitor the ion current for a knock condition that includes at least an incipient knock condition, determine a spark crank angle timing of the IC engine where the incipient knock occurs, and adjust the spark timing of the IC engine to operate at a crank angle that does not exceed a threshold level beyond an incipient knock set point.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: September 21, 2010
    Assignee: Woodward Governor Company
    Inventors: Jeffrey B. Barrett, Suraj Nair, Ed VanDyne, Luigi Tozzi
  • Patent number: 7798124
    Abstract: A system and method for controlling knock in a lean burn internal combustion (IC) engine includes a spark plug having an electrode, an electrical circuit, and a controller. The electrical circuit is configured to provide a first voltage to the electrode and detect an ion current during a thermal-ionization phase of the combustion process, and provide a second voltage to the electrode to create a spark and initiate a combustion process within the combustion chamber. The controller is configured to monitor the ion current for a knock condition that includes at least an incipient knock condition, determine a crank angle of the IC engine where the incipient knock occurs, and adjust timing of the IC engine to operate at a crank angle that does not exceed a threshold level beyond inception of incipient knock.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: September 21, 2010
    Assignee: Woodward Governor Company
    Inventors: Jeffrey B. Barrett, Suraj Nair, Ed VanDyne, Luigi Tozzi
  • Publication number: 20090078234
    Abstract: A system and method for controlling knock in a lean burn internal combustion (IC) engine includes a spark plug having an electrode, and an electrical circuit configured to provide a first voltage to the electrode and detect an ion current during a thermal-ionization phase of the combustion process, and provide a second voltage to the electrode to create a spark and initiate a combustion process within a combustion chamber. The engine includes a controller configured to monitor the ion current for a knock condition that includes at least an incipient knock condition, determine a spark crank angle timing of the IC engine where the incipient knock occurs, and adjust the spark timing of the IC engine to operate at a crank angle that does not exceed a threshold level beyond an incipient knock set point.
    Type: Application
    Filed: November 25, 2008
    Publication date: March 26, 2009
    Inventors: Jeffrey B. Barrett, Suraj Nair, Ed VanDyne, Luigi Tozzi
  • Patent number: 7454892
    Abstract: The present invention comprises methods for detecting and controlling flame blowout in combustors. The blowout precursor detection system comprises a combustor, a blowout precursor detection unit, a pressure measuring device and/or an optical measuring device. The methods of the present invention comprise receiving optical data measured by an optical measuring device, performing one or a combination of raw data analysis, spectral analysis, statistical analysis, and wavelet analysis on received optical data, and determining the existence of a blowout precursor based on such analyses. The present invention further comprises closed-loop control methods for controlling a combustor to prevent blowout.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: November 25, 2008
    Assignee: Georgia Tech Research Corporation
    Inventors: Tim C. Lieuwen, Suraj Nair, Muruganandam Thiruchengode, Ben T. Zinn, Yediddia Neumeier, Jerry Seitzman, David Scarborough
  • Publication number: 20080078359
    Abstract: A system and method for controlling knock in a lean burn internal combustion (IC) engine includes a spark plug having an electrode, an electrical circuit, and a controller. The electrical circuit is configured to provide a first voltage to the electrode and detect an ion current during a thermal-ionization phase of the combustion process, and provide a second voltage to the electrode to create a spark and initiate a combustion process within the combustion chamber. The controller is configured to monitor the ion current for a knock condition that includes at least an incipient knock condition, determine a crank angle of the IC engine where the incipient knock occurs, and adjust timing of the IC engine to operate at a crank angle that does not exceed a threshold level beyond inception of incipient knock.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 3, 2008
    Inventors: Jeffrey Barrett, Suraj Nair, Ed VanDyne, Luigi Tozzi
  • Patent number: 7089746
    Abstract: The present invention comprises systems and methods for detecting flame blowout precursors in combustors. The blowout precursor detection system comprises a combustor, a pressure measuring device, and blowout precursor detection unit. A combustion controller may also be used to control combustor parameters. The methods of the present invention comprise receiving pressure data measured by an acoustic pressure measuring device, performing one or a combination of spectral analysis, statistical analysis, and wavelet analysis on received pressure data, and determining the existence of a blowout precursor based on such analyses. The spectral analysis, statistical analysis, and wavelet analysis further comprise their respective sub-methods to determine the existence of blowout precursors.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: August 15, 2006
    Assignee: Georgia Tech Reasearch Corporation
    Inventors: Tim C. Lieuwen, Suraj Nair
  • Publication number: 20060137353
    Abstract: The present invention comprises systems and methods for detecting flame blowout precursors in combustors. The blowout precursor detection system comprises a combustor, a pressure measuring device, and blowout precursor detection unit. A combustion controller may also be used to control combustor parameters. The methods of the present invention comprise receiving pressure data measured by an acoustic pressure measuring device, performing one or a combination of spectral analysis, statistical analysis, and wavelet analysis on received pressure data, and determining the existence of a blowout precursor based on such analyses. The spectral analysis, statistical analysis, and wavelet analysis further comprise their respective sub-methods to determine the existence of blowout precursors.
    Type: Application
    Filed: June 24, 2003
    Publication date: June 29, 2006
    Inventors: Tim Lieuwen, Suraj Nair
  • Publication number: 20050056024
    Abstract: The present invention comprises methods for detecting and controlling flame blowout in combustors. The blowout precursor detection system comprises a combustor, a blowout precursor detection unit, a pressure measuring device and/or an optical measuring device. The methods of the present invention comprise receiving optical data measured by an optical measuring device, performing one or a combination of raw data analysis, spectral analysis, statistical analysis, and wavelet analysis on received optical data, and determining the existence of a blowout precursor based on such analyses. The present invention further comprises closed-loop control methods for controlling a combustor to prevent blowout.
    Type: Application
    Filed: October 30, 2003
    Publication date: March 17, 2005
    Inventors: Tim Lieuwen, Suraj Nair, Muruganandam Thiruchengode, Ben Zinn, Yediddia Neumeier, Jerry Seitzman, David Scarborough