Patents by Inventor Gerald Andrew Garland

Gerald Andrew Garland 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 fast fault detection
    Patent number: 8513951
    Abstract: A method and apparatus are provided for detecting a fault condition on a power system. By rectifying power system phase voltages to produce a rectified waveform, and filtering the rectified waveform or a representation of the rectified waveform through a finite gain synchronous band pass filter to generate a synchronous band pass filter output waveform that indicates the magnitude of a predefined harmonic frequency component, a fault condition on a power system can be identified.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: August 20, 2013
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Scott Wunderlich, Gerald Andrew Garland
  • Method and Apparatus for Fast Fault Detection
    Publication number: 20100026276
    Abstract: A method and apparatus are provided for detecting a fault condition on a power system. By rectifying power system phase voltages to produce a rectified waveform, and filtering the rectified waveform or a representation of the rectified waveform through a finite gain synchronous band pass filter to generate a synchronous band pass filter output waveform that indicates the magnitude of a predefined harmonic frequency component, a fault condition on a power system can be identified.
    Type: Application
    Filed: July 30, 2008
    Publication date: February 4, 2010
    Inventors: Scott Wunderlich, Gerald Andrew Garland