Patents by Inventor Steve Grabner

Steve Grabner 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 operating variable optical attenuator by modulating the attenuation thereof
    Publication number: 20050019032
    Abstract: A method and apparatus are disclosed for operating an eVOA by modulating its attenuation. If an optical signal power is below a loss of signal (LOS) power threshold the eVOA attenuation is set to a maximum attenuation and then, periodically and quickly decreased and increased in steps while checking for the presence of optical signals above the LOS power threshold. The method is also used for operating a multiplicity of eVOAs while minimizing the risk of damage to optical network equipment.
    Type: Application
    Filed: July 15, 2003
    Publication date: January 27, 2005
    Inventors: Gordon Scarth, Robert Bierman, Steve Grabner