Patents by Inventor Yogananda A. Prabhakara

Yogananda A. Prabhakara 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).

  • Plugged impulse line detection
    Patent number: 7577543
    Abstract: A digital signal representative of a difference in pressure is received from a differential pressure transmitter. A noise signal is obtained by processing the signal through a band pass filter or otherwise to provide a filtered noise signal. Absolute values of the filtered noise signal are calculated and compared to one or more predetermined threshold values to determine if one or more impulse lines are plugged. A training mode is used to determine the thresholds, which may be a function of flow rate and other flow conditions.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: August 18, 2009
    Assignee: Honeywell International Inc.
    Inventors: Jagadeesh Brahmajosyula, Yogananda A. Prabhakara, Lokesh T. Siddaramanna
  • Plugged impulse line detection
    Publication number: 20060206288
    Abstract: A digital signal representative of a difference in pressure is received from a differential pressure transmitter. A noise signal is obtained by processing the signal through a band pass filter or otherwise to provide a filtered noise signal. Absolute values of the filtered noise signal are calculated and compared to one or more predetermined threshold values to determine if one or more impulse lines are plugged. A training mode is used to determine the thresholds, which may be a function of flow rate and other flow conditions.
    Type: Application
    Filed: February 6, 2006
    Publication date: September 14, 2006
    Inventors: Jagadeesh Brahmajosyula, Yogananda Prabhakara, Lokesh Siddaramanna