Patents by Inventor Francis P. J. Dawson

Francis P. J. Dawson 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).

  • Method and apparatus for generalized arc fault detection
    Patent number: 7391218
    Abstract: A method and an apparatus detect series and/or parallel arc faults in AC and DC systems. The method according to one embodiment inputs an AC current signal; extracts a fundamental component of the AC current signal and monitoring an amplitude variation profile for the fundamental component, thereby generating a first arc fault detection measure; detects non-stationary changes in the AC current signal applying at least one measure of order higher than one, thereby generating a second arc fault detection measure; and determines whether an arc fault exists based on the first arc fault detection measure and the second arc fault detection measure.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: June 24, 2008
    Assignee: Honeywell International Inc.
    Inventors: Hassan Ali Kojori, Chunlin Li, Francis P. J. Dawson