Patents by Inventor Terence Monteith

Terence Monteith 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).

  • Wideband frequency domain reflectometry to determine the nature and location of subscriber line faults
    Patent number: 7385932
    Abstract: A technique for estimating distances and the nature of irregularities and faults on a telephone subscriber line is disclosed. Reflected test signals are measured as a function of frequency. The measurements are compensated for variable propagation velocity and variable line attenuation and then weighted before transformation with the Fourier transform. The amplitude and phase of peaks in the spectral domain identify the distances to the irregularities and the magnitude and phase angle of the reflection coefficients.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: June 10, 2008
    Assignee: Telecommunications Research Laboratory
    Inventors: David E. Dodds, Bernardo Celaya, Terence Monteith
  • Wideband frequency domain reflectometry to determine the nature and location of subscriber line faults
    Publication number: 20050238037
    Abstract: A technique for estimating distances and the nature of irregularities and faults on a telephone subscriber line is disclosed. Reflected test signals are measured as a function of frequency. The measurements are compensated for variable propagation velocity and variable line attenuation and then weighted before transformation with the Fourier transform. The amplitude and phase of peaks in the spectral domain identify the distances to the irregularities and the magnitude and phase angle of the reflection coefficients.
    Type: Application
    Filed: April 27, 2004
    Publication date: October 27, 2005
    Inventors: David Dodds, Bernardo Celaya, Terence Monteith