Patents by Inventor Glenn Ahern

Glenn Ahern 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 in-service monitoring of a regional undersea optical transmission system using COTDR
    Publication number: 20060159464
    Abstract: A method and apparatus is provided for obtaining status information concerning an optical transmission path. The method begins by generating a COTDR probe signal having a prescribed wavelength and transmitting optical traffic signals and the COTDR probe signal over an optical transmission path having a length corresponding to those used in regional undersea market applications. The prescribed wavelength of the COTDR probe signal is separated from wavelengths at which the optical traffic signals are located by a distance at least equal to a predetermined guard band. A backscattered and/or reflected portion of the COTDR probe signal in which status information concerning the optical path is embodied is received over the optical path. The backscattered and/or reflected portion of the COTDR probe signal is detected to obtain the status information.
    Type: Application
    Filed: January 7, 2005
    Publication date: July 20, 2006
    Inventors: William David Cornwell, Henry Edwards, Stephen Evangelides, Jonathan Nagel, Nigel Taylor, Glenn Ahern, Stephen Smith