Patents by Inventor Raj Mohan

Raj Mohan 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: 20170006047
    Abstract: Methods and systems are provided for monitoring cyber activity in a system having multiple networks. A method includes: receiving an evidence stream generated by a plurality of monitoring systems associated with a plurality of hardware and software components that communicate over the multiple networks; processing the evidence stream using at least one reference model to identify at least one cyber issue, where the cyber issue relates to at least one of security, safety, and resources; and generating at least one of actuator data and user interface data based on the identified cyber issue.
    Type: Application
    Filed: June 30, 2015
    Publication date: January 5, 2017
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Raj Mohan Bharadwaj, Srivatsan Varadarajan, Darryl Busch, Jun Ho Huh, Daniel P. Johnson
  • Patent number: 9068759
    Abstract: A program product for determining an obstruction in an air circuit for an environmental control unit having a motor is provided. The program product comprises a program and a non-transitory, computer-readable storage medium. The program is configured to at least facilitate obtaining a load current of the motor, determining a state of the motor, generating a comparison, and determining the obstruction using the load current and the comparison. The comparison is generated by comparing the load current to a first plurality of values if the motor is in a steady state, and by comparing the load current to a second plurality of values if the motor is in a transient state. The non-transitory, computer-readable storage medium stores the program.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: June 30, 2015
    Assignee: Honeywell International Inc.
    Inventors: Raj Mohan Bharadwaj, David Lazarovich
  • Patent number: 9046891
    Abstract: A system and method for determining the response capabilities of a control effector are provided. Command data and sensor data associated with the control effector are processed to generate control effector health data representative of control effector health. The control effector health data are processed in a reasoned. The reasoned is configure to selectively indict and clear one or more faults, determine one or more failures that cause indicted faults, and determine, based on the one or more determined failures, a usable range of control effector commands to which the control effector can respond.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: June 2, 2015
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Darryl Busch, Raj Mohan Bharadwaj
  • Publication number: 20140260523
    Abstract: A method of calibrating a radar-based vibration sensor that includes a radar head coupled to a vibration device includes disposing the vibration sensor at a fixed distance from a target, and transmitting radio frequency (RF) signals toward, and receiving RF signals reflected by, the target. An excitation voltage is supplied, at a plurality of different excitation frequencies, to the vibration device to cause the vibration sensor to vibrate. Vibration sensor acceleration is determined at each of the different excitation frequencies. A calibration curve is generated based on the determined vibration sensor acceleration at each of the different excitation frequencies, and on the reflected RF signals at each of the different excitation frequencies.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Andy Peczalski, Raj Mohan Bharadwaj, Hai Pham, David Wunderlin, Kyusung Kim, Dinkar Mylaraswamy
  • Publication number: 20140062024
    Abstract: A seal assembly for a rotary machine is provided. The seal assembly includes multiple sealing device segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the segments includes a shoe plate with a forward-shoe section and an aft-shoe section having one or more labyrinth teeth therebetween facing the rotor. The sealing device includes a stator interface element having a groove or slot for allowing disposal of a spline seal for preventing segment leakages. The sealing device segment also includes multiple bellow springs or flexures connected to the shoe plate and to the stator interface element. Further, the sealing device segments include a secondary seal integrated with the stator interface element at one end and positioned about the multiple bellow springs or flexures and the shoe plate at the other end.
    Type: Application
    Filed: July 31, 2012
    Publication date: March 6, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Rahul Anil Bidkar, Neelesh Nandkumar Sarawate, Christopher Edward Wolfe, Eric John Ruggiero, Vivek Raja Raj Mohan
  • Patent number: 8621305
    Abstract: Methods and apparatus are provided for determining whether a built-in-test fault code (BITFC) data sequence generated by a built-in-test (BIT) of a particular module of a complex system is indicative of an actual fault condition. A regression function is generated for the particular module based on stored BITFC data sequences generated by the BIT and stored repair data for that module from a fault history database. Later, during operation of the particular module, the BIT generates a new BITFC data sequence. A processor can then load the new BITFC data sequence and execute the regression function with respect to the new BITFC data sequence to determine whether the new BITFC data sequence is indicative of an actual fault condition at the particular module or is indicative of a false fault condition at the particular module.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: December 31, 2013
    Assignee: Honeywell International Inc.
    Inventors: Joel Bock, Phil Scandura, Raj Mohan Bharadwaj
  • Patent number: 8451134
    Abstract: A computer implemented method and system includes using information provided from sensors to monitor a wind turbine generator and provide signals representative of operation of the wind turbine generator, extracting signal level features from the signals, extracting model based features from the signals, calculating signal based conclusions, model based conclusions and spectral feature reinforcement based conclusions, and fusing the conclusions to provide a fault detection indication.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: May 28, 2013
    Assignee: Honeywell International Inc.
    Inventors: Raj Mohan Bharadwaj, Kyusung Kim
  • Patent number: 8359577
    Abstract: A testbed for testing health of software includes an input model, a hardware model, and a resource modeler. The input model represents an input system used in conjunction with the software. The hardware model represents one or more hardware components used in conjunction with the software. The resource modeler is coupled to the input model and the hardware model, and is configured to estimate effects on the software of conditions of the hardware components, the input system, or both.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: January 22, 2013
    Assignee: Honeywell International Inc.
    Inventors: Raj Mohan Bharadwaj, Dinkar Mylaraswamy, Subhabrata Ganguli, Onder Uluyol
  • Patent number: 8234523
    Abstract: Methods and systems are provided for improving the repair efficacy of a repair action using inferred feedback. The method comprises downloading a repair procedure, which has a probability of success for correcting the fault code. Repair action data is input into to the computing device and is tracked and correlated with the downloaded procedure. The method then adjusts a probability of success of the repair procedure in clearing the fault code generated by the complex system based at least on the correlation. The system comprises a means for receiving repair data, a means for tracking repair action data taken, a means for correlating the tracked repair action and the repair data, and a means for updating a probability of success of the repair action based at least in part on the correlation of the repair data, the repair action data and the operating status of the complex system.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: July 31, 2012
    Assignee: Honeywell International Inc.
    Inventors: Raj Mohan Bharadwaj, Ranjana Ghosh, David B. Goldstein, Vidhyashankaran Ramamoorthy Iyer
  • Publication number: 20120123714
    Abstract: A program product for determining an obstruction in an air circuit for an environmental control unit having a motor is provided. The program product comprises a program and a non-transitory, computer-readable storage medium. The program is configured to at least facilitate obtaining a load current of the motor, determining a state of the motor, generating a comparison, and determining the obstruction using the load current and the comparison. The comparison is generated by comparing the load current to a first plurality of values if the motor is in a steady state, and by comparing the load current to a second plurality of values if the motor is in a transient state. The non-transitory, computer-readable storage medium stores the program.
    Type: Application
    Filed: January 24, 2012
    Publication date: May 17, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Raj Mohan Bharadwaj, David Lazarovich
  • Publication number: 20120101777
    Abstract: A system and method for determining the response capabilities of a control effector are provided. Command data and sensor data associated with the control effector are processed to generate control effector health data representative of control effector health. The control effector health data are processed in a reasoned. The reasoned is configure to selectively indict and clear one or more faults, determine one or more failures that cause indicted faults, and determine, based on the one or more determined failures, a usable range of control effector commands to which the control effector can respond.
    Type: Application
    Filed: August 16, 2011
    Publication date: April 26, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Darryl Busch, Raj Mohan Bharadwaj
  • Patent number: 8125230
    Abstract: A method for determining an obstruction in an air circuit, the air circuit having a fan and a motor that drives the fan, includes the steps of obtaining a load current of a motor coupled to the air circuit, comparing the load current to a predetermined value, and determining the obstruction using the load current and the predetermined value.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: February 28, 2012
    Assignee: Honeywell International Inc.
    Inventors: Raj Mohan Bharadwaj, David Lazarovich
  • Publication number: 20120030501
    Abstract: Methods and systems are provided for improving the repair efficacy of a repair action using inferred feedback. The method comprises downloading a repair procedure, which has a probability of success for correcting the fault code. Repair action data is input into to the computing device and is tracked and correlated with the downloaded procedure. The method then adjusts a probability of success of the repair procedure in clearing the fault code generated by the complex system based at least on the correlation. The system comprises a means for receiving repair data, a means for tracking repair action data taken, a means for correlating the tracked repair action and the repair data, and a means for updating a probability of success of the repair action based at least in part on the correlation of the repair data, the repair action data and the operating status of the complex system.
    Type: Application
    Filed: July 28, 2010
    Publication date: February 2, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Raj Mohan Bharadwaj, Ranjana Ghosh, David B. Goldstein, Vidhyashankaran Ramamoorthy Iyer
  • Publication number: 20120011403
    Abstract: Methods and apparatus are provided for determining whether a built-in-test fault code (BITFC) data sequence generated by a built-in-test (BIT) of a particular module of a complex system is indicative of an actual fault condition. A regression function is generated for the particular module based on stored BITFC data sequences generated by the BIT and stored repair data for that module from a fault history database. Later, during operation of the particular module, the BIT generates a new BITFC data sequence. A processor can then load the new BITFC data sequence and execute the regression function with respect to the new BITFC data sequence to determine whether the new BITFC data sequence is indicative of an actual fault condition at the particular module or is indicative of a false fault condition at the particular module.
    Type: Application
    Filed: July 8, 2010
    Publication date: January 12, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Joel Bock, Phil Scandura, Raj Mohan Bharadwaj
  • Publication number: 20110257927
    Abstract: An inertial navigation system (INS) includes a primary inertial navigation system (INS) unit configured to receive accelerometer measurements from an accelerometer and angular velocity measurements from a gyroscope. The primary INS unit is further configured to receive global navigation satellite system (GNSS) signals from a GNSS sensor and to determine a first set of kinematic state vectors based on the accelerometer measurements, the angular velocity measurements, and the GNSS signals. The INS further includes a secondary INS unit configured to receive the accelerometer measurements and the angular velocity measurements and to determine a second set of kinematic state vectors of the vehicle based on the accelerometer measurements and the angular velocity measurements. A health management system is configured to compare the first set of kinematic state vectors and the second set of kinematic state vectors to determine faults associated with the accelerometer or the gyroscope based on the comparison.
    Type: Application
    Filed: February 17, 2011
    Publication date: October 20, 2011
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Raj Mohan Bharadwaj, Vibhor L. Bageshwar, Kyusung Kim
  • Publication number: 20110018727
    Abstract: A computer implemented method and system includes using information provided from sensors to monitor a wind turbine generator and provide signals representative of operation of the wind turbine generator, extracting signal level features from the signals, extracting model based features from the signals, calculating signal based conclusions, model based conclusions and spectral feature reinforcement based conclusions, and fusing the conclusions to provide a fault detection indication.
    Type: Application
    Filed: July 22, 2010
    Publication date: January 27, 2011
    Applicant: Honeywell International Inc.
    Inventors: Raj Mohan Bharadwaj, Kyusung Kim
  • Publication number: 20100161307
    Abstract: A testbed for testing health of software includes an input model, a hardware model, and a resource modeler. The input model represents an input system used in conjunction with the software. The hardware model represents one or more hardware components used in conjunction with the software. The resource modeler is coupled to the input model and the hardware model, and is configured to estimate effects on the software of conditions of the hardware components, the input system, or both.
    Type: Application
    Filed: December 23, 2008
    Publication date: June 24, 2010
    Applicant: Honeywell International Inc.
    Inventors: Raj Mohan Bharadwaj, Dinkar Mylaraswamy, Subhabrata Ganguli, Onder Uluyol
  • Publication number: 20100148748
    Abstract: A method for determining an obstruction in an air circuit, the air circuit having a fan and a motor that drives the fan, includes the steps of obtaining a load current of a motor coupled to the air circuit, comparing the load current to a predetermined value, and determining the obstruction using the load current and the predetermined value.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 17, 2010
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Raj Mohan Bharadwaj, David Lazarovich
  • Publication number: 20090223181
    Abstract: A bridle includes a head piece with first and second end portions, and brow and nose bands operably connected to the head piece. An auxiliary strap extends in a channel in the head piece, and passes through the thickness of the head piece adjacent the first and second end portions thereof. A cushion is provided on the underside of the head piece.
    Type: Application
    Filed: March 6, 2008
    Publication date: September 10, 2009
    Inventor: Raj Mohan
  • Patent number: 7548824
    Abstract: A system and method for an automated analysis system for semiconductor manufacturing fabrication is disclosed. The system includes one or more site databases that each store data generated by an associated one or more semiconductor fabrication plants, a configuration database, and a server communicatively coupled to the one or more site databases and the configuration database, the server to analyze the data from the one or more site databases upon a request by a client, the data to be analyzed based on configuration settings in the configuration database that provide uniform configuration synchronization for applying algorithms to the data.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: June 16, 2009
    Assignee: Intel Corporation
    Inventors: Sutirtha Bhattacharya, Brenda Buttrick, David Eggleston, Ayman Fayed, Raj Mohan, Girish Nirgude, Sanjay Patel, Ashit Sawhney, Raghu Yeluri