Patents by Inventor Prafull Sharma

Prafull Sharma 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: 20240005627
    Abstract: A method of conditional neural ground planes for static-dynamic disentanglement is described. The method includes extracting, using a convolutional neural network (CNN), CNN image features from an image to form a feature tensor. The method also includes resampling unprojected 2D features of the feature tensor to form feature pillars. The method further includes aggregating the feature pillars to form an entangled neural ground plane. The method also includes decomposing the entangled neural ground plane into a static neural ground plane and a dynamic neural ground plane.
    Type: Application
    Filed: April 18, 2023
    Publication date: January 4, 2024
    Applicants: TOYOTA RESEARCH INSTITUTE, INC., TOYOTA JIDOSHA KABUSHIKI KAISHA, MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Prafull SHARMA, Ayush TEWARI, Yilun DU, Sergey ZAKHAROV, Rares Andrei AMBRUS, Adrien David GAIDON, William Tafel FREEMAN, Frederic Pierre DURAND, Joshua B. TENENBAUM, Vincent SITZMANN
  • Publication number: 20220138911
    Abstract: A neural network is used to remove noise from a data signal. The noise removed by the neural network is compared to simulated noise that represents noise expected to be present in the data signal.
    Type: Application
    Filed: November 5, 2021
    Publication date: May 5, 2022
    Inventors: Michael NEWEY, Prafull SHARMA
  • Patent number: 10809217
    Abstract: A system (1) for detecting and locating corrosion on the outer surface of a metal body (2). The system includes an extended electromagnetic waveguide (6) arranged adjacent to the outer surface of the metal body. The electromagnetic waveguide includes a sacrificial component that experiences substantially the same environment as the outer surface of the metal body. The system also includes a waveform generator (10) arranged to be connected to the waveguide and to inject an electromagnetic waveform into the waveguide. The system also includes a waveform analyser (12) connected to the waveguide. The waveform analyser is arranged to receive a reflected portion of the injected electromagnetic waveform from the waveguide. The reflected portion of the injected electromagnetic waveform is used by the waveform analyser to determine the location of corrosion of the sacrificial component of the waveguide.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 20, 2020
    Assignee: CRANFIELD UNIVERSITY
    Inventors: Prafull Sharma, Hoi Yeung
  • Patent number: 10690585
    Abstract: A system includes a plurality of movable members and an electromagnetic wave probe disposed within at least one movable member among the plurality of movable members. The actuation system is coupled to the plurality of movable members. The actuation system is configured to actuate and removably position the plurality of movable members to form a wave guide around at least a portion of an outer peripheral surface of the pipe assembly and position the electromagnetic wave probe proximate to the portion of the outer peripheral surface of the pipe assembly.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: June 23, 2020
    Assignee: General Electric Company
    Inventors: Vikram Reddy Melapudi, Megha Navalgund, Manikandasriram Srinivasan Ramanagopal, Prafull Sharma
  • Patent number: 10690532
    Abstract: A method of determining a fraction of one or more phases in a multi-phase fluid in a conduit is provided. The method includes exciting (602) a sensing device to cause emission of electromagnetic waves of a range of frequencies into a multi-phase fluid. The sensing device comprises an antenna and a dielectric layer, selected to cause resonance in at least one of a first set of frequencies or a second set of frequencies based on a flow state of the multi-phase fluid, when placed proximate to the multi-phase fluid. The method also includes receiving (604) transmitted or reflected electromagnetic waves from the multi-phase fluid. The flow state of the multi-phase fluid is selected (606) based on a classification parameter. Fractions are determined (608) utilizing at least one fraction determination model that is selected based on the flow state of the multi-phase fluid.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: June 23, 2020
    Assignee: Baker Hughes Oilfield Operations LLC
    Inventors: Prafull Sharma, Aparna Chakrapani Sheila-Vadde, Suma Memana Narayana Bhat, Vikram Melapudi
  • Patent number: 10309910
    Abstract: A method of determining salinity of multi-phase fluids in a conduit includes exciting a sensing device to cause emission of electromagnetic waves of one or more frequencies into the multi-phase fluid. The method includes receiving transmitted or reflected electromagnetic waves from the multi-phase fluid. Furthermore, the method includes determining an intermediate parameter from the received electromagnetic waves. The method also includes obtaining estimated values of a plurality of parameters from the intermediate parameter. The estimated values comprise at least one of an estimated value of conductance, an estimated value of susceptance, an estimated value of differential conductance, an estimated value of differential susceptance, an estimated value of a real part of complex permittivity, and an estimated value of an imaginary part of complex permittivity. Salinity of the fluid is determined based, at least in part, on the estimated values of the plurality of parameters.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: June 4, 2019
    Assignee: General Electric Company
    Inventors: Prafull Sharma, Aparna Chakrapani Sheila-Vadde
  • Publication number: 20190064096
    Abstract: A system (1) for detecting and locating corrosion on the outer surface of a metal body (2). The system includes an extended electromagnetic waveguide (6) arranged adjacent to the outer surface of the metal body. The electromagnetic waveguide includes a sacrificial component that experiences substantially the same environment as the outer surface of the metal body. The system also includes a waveform generator (10) arranged to be connected to the waveguide and to inject an electromagnetic waveform into the waveguide. The system also includes a waveform analyser (12) connected to the waveguide. The waveform analyser is arranged to receive a reflected portion of the injected electromagnetic waveform from the waveguide. The reflected portion of the injected electromagnetic waveform is used by the waveform analyser to determine the location of corrosion of the sacrificial component of the waveguide.
    Type: Application
    Filed: January 26, 2017
    Publication date: February 28, 2019
    Inventors: Prafull Sharma, Hoi Yeung
  • Patent number: 9909911
    Abstract: A method for determining a phase composition of a multiphase mixture flowing through a pipe is presented. The method includes exciting one or more patch antennas configured to operate over the range of frequencies. Further, the method includes acquiring at least one of a transmitted signal and a reflected signal over the range of frequencies from the one or more patch antennas. Moreover, the method includes estimating the phase composition of the multiphase mixture based on a group delay determined from at least one of the transmitted signal and the reflected signal. A system for determining a phase composition of a multiphase mixture flowing through a pipe is also presented.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: March 6, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Aparna Chakrapani Sheila-Vadde, Prafull Sharma, Manoj Kumar Koyithitta Meethal, Vikram Reddy Melapudi
  • Publication number: 20170322064
    Abstract: A method of determining a fraction of one or more phases in a multi-phase fluid in a conduit is provided. The method includes exciting (602) a sensing device to cause emission of electromagnetic waves of a range of frequencies into a multi-phase fluid. The sensing device comprises an antenna and a dielectric layer, selected to cause resonance in at least one of a first set of frequencies or a second set of frequencies based on a flow state of the multi-phase fluid, when placed proximate to the multi-phase fluid. The method also includes receiving (604) transmitted or reflected electromagnetic waves from the multi-phase fluid. The flow state of the multi-phase fluid is selected (606) based on a classification parameter. Fractions are determined (608) utilizing at least one fraction determination model that is selected based on the flow state of the multi-phase fluid.
    Type: Application
    Filed: October 14, 2015
    Publication date: November 9, 2017
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Prafull SHARMA, Aparna Chakrapani Sheila-Vadde, Suma Memana Narayana BHAT, Vikram MELAPUDI
  • Publication number: 20170241895
    Abstract: A system includes a plurality of movable members and an electromagnetic wave probe disposed within at least one movable member among the plurality of movable members. The actuation system is coupled to the plurality of movable members. The actuation system is configured to actuate and removably position the plurality of movable members to form a wave guide around at least a portion of an outer peripheral surface of the pipe assembly and position the electromagnetic wave probe proximate to the portion of the outer peripheral surface of the pipe assembly.
    Type: Application
    Filed: September 15, 2015
    Publication date: August 24, 2017
    Inventors: Vikram Reddy MELAPUDI, Megha NAVALGUND, Manikandasriram SRINIVASAN RAMANAGOPAL, Prafull SHARMA
  • Publication number: 20160131601
    Abstract: A method of determining salinity of multi-phase fluids in a conduit includes exciting a sensing device to cause emission of electromagnetic waves of one or more frequencies into the multi-phase fluid. The method includes receiving transmitted or reflected electromagnetic waves from the multi-phase fluid. Furthermore, the method includes determining an intermediate parameter from the received electromagnetic waves. The method also includes obtaining estimated values of a plurality of parameters from the intermediate parameter. The estimated values comprise at least one of an estimated value of conductance, an estimated value of susceptance, an estimated value of differential conductance, an estimated value of differential susceptance, an estimated value of a real part of complex permittivity, and an estimated value of an imaginary part of complex permittivity. Salinity of the fluid is determined based, at least in part, on the estimated values of the plurality of parameters.
    Type: Application
    Filed: November 10, 2015
    Publication date: May 12, 2016
    Inventors: Prafull SHARMA, Aparna Chakrapani SHEILA-VADDE
  • Patent number: 8855947
    Abstract: Various methods of metering a multi-phase composition in a pipe using patch antenna(s), that operate in a radio or microwave frequency range, are disclosed including locating and then exciting the patch antenna(s) over a range of frequencies; measuring transmitted and reflected signals over time; estimating a shift in a resonant frequency from a baseline resonant frequency; then calculating a permittivity of the composition, based on the shift; and calculating a phase composition of the multi-phase composition. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: October 7, 2014
    Assignee: General Electric Company
    Inventors: Aparna Chakrapani Sheila-Vadde, Prafull Sharma, Manoj Kumar Koyithitta Meethal, Mandar Diwakar Godbole
  • Publication number: 20140260659
    Abstract: A method for determining a phase composition of a multiphase mixture flowing through a pipe is presented. The method includes exciting one or more patch antennas configured to operate over the range of frequencies. Further, the method includes acquiring at least one of a transmitted signal and a reflected signal over the range of frequencies from the one or more patch antennas. Moreover, the method includes estimating the phase composition of the multiphase mixture based on a group delay determined from at least one of the transmitted signal and the reflected signal. A system for determining a phase composition of a multiphase mixture flowing through a pipe is also presented.
    Type: Application
    Filed: June 3, 2014
    Publication date: September 18, 2014
    Applicant: General Electric Company
    Inventors: Aparna Chakrapani Sheila-Vadde, Prafull Sharma, Manoj Kumar Koyithitta Meethal, Vikram Reddy Melapudi
  • Patent number: 8508238
    Abstract: An electrode array, a system and a method for reconstructing the distribution of electrical properties within a multi-material object. One embodiment includes electrodes arranged along a three-dimensional helical path to provide one or more helical arrays and circuitry to measure signals for calculating a conductivity or admittivity distribution representative of the interior of the structure. Image data may be obtained which is representative of the multi-material region.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: August 13, 2013
    Assignee: General Electric Company
    Inventors: Sakethraman Mahalingam, Manoj Kumar Koyithitta Meethal, Prafull Sharma, Rajesh Veera Venkata Lakshmi Langoju, Wrichik Basu, Parama Ghoshal
  • Publication number: 20120136630
    Abstract: A method and system for inspecting a wind turbine is provided. The method includes providing at least one remotely operated aerial platform (ROAP), providing at least one non-destructive evaluation (NDE) device attached to the ROAP, and providing at least one distance measuring system attached to the ROAP. The distance measuring system is used for determining the distance between the ROAP and at least a portion of the wind turbine. The method also includes positioning the ROAP so that the at least one non-destructive evaluation device captures data used for inspecting the wind turbine.
    Type: Application
    Filed: February 4, 2011
    Publication date: May 31, 2012
    Inventors: John Thomas Murphy, Debasish Mishra, George Rowan Silliman, Vinod Padmanabhan Kumar, Shyamsunder Tondanur Mandayam, Prafull Sharma
  • Publication number: 20120038368
    Abstract: An electrode array, a system and a method for reconstructing the distribution of electrical properties within a multi-material object. One embodiment includes electrodes arranged along a three-dimensional helical path to provide one or more helical arrays and circuitry to measure signals for calculating a conductivity or admittivity distribution representative of the interior of the structure. Image data may be obtained which is representative of the multi-material region.
    Type: Application
    Filed: August 12, 2010
    Publication date: February 16, 2012
    Inventors: Sakethraman Mahalingam, Manoj Kumar Koyithitta Meethal, Prafull Sharma, Rajesh Veera Venkata Lakshmi Langoju, Wrichik Basu, Parama Ghoshal
  • Publication number: 20110196625
    Abstract: Various methods of metering a multi-phase composition in a pipe using patch antenna(s), that operate in a radio or microwave frequency range, are disclosed including locating and then exciting the patch antenna(s) over a range of frequencies; measuring transmitted and reflected signals over time; estimating a shift in a resonant frequency from a baseline resonant frequency; then calculating a permittivity of the composition, based on the shift; and calculating a phase composition of the multi-phase composition. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.
    Type: Application
    Filed: October 29, 2010
    Publication date: August 11, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Aparna Chakrapani Sheila-Vadde, Prafull Sharma, Manoj Kumar Koyithitta Meethal, Mandar Diwakar Godbole
  • Patent number: 7337651
    Abstract: A method for generating a scanplan for inspection of a component is provided. The method includes loading a geometric model of the component and generating the scanplan of the component based on the geometric model and at least one scanning parameter. A method of inspecting a component is also provided and includes loading a geometric model of the component, generating a scanplan of the component based on the geometric model and at least one scanning parameter, mounting the component on an inspection system manipulator and inspecting the component including moving an inspection probe relative to the component using the scanplan.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: March 4, 2008
    Assignee: General Electric Company
    Inventors: Suneel Tumkur Shankarappa, William Stewart McKnight, Vamshi Krishna Reddy Kommareddy, Ui Won Suh, Mandar Diwakar Godbole, Anjani Narendra Schrad, Prafull Sharma
  • Publication number: 20060224348
    Abstract: A method for generating a scanplan for inspection of a component is provided. The method includes loading a geometric model of the component and generating the scanplan of the component based on the geometric model and at least one scanning parameter. A method of inspecting a component is also provided and includes loading a geometric model of the component, generating a scanplan of the component based on the geometric model and at least one scanning parameter, mounting the component on an inspection system manipulator and inspecting the component including moving an inspection probe relative to the component using the scanplan.
    Type: Application
    Filed: April 5, 2005
    Publication date: October 5, 2006
    Inventors: Suneel Shankarappa, William McKnight, Vamshi Kommareddy, Ui Suh, Mandar Godbole, Anjani Schrad, Prafull Sharma