Patents by Inventor Harbhajan Vridee

Harbhajan Vridee 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).

  • Optical signaling to share active channel information
    Patent number: 7327954
    Abstract: A method for optical supervisory signaling includes determining a wavelength channel status (WCS) value, a wavelength channel failure (WCF) value, and a wavelength channel lit (WCL) value for each one of multiple data channels services by an optical communication node. The method further includes communicating the values to a second optical communication node.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: February 5, 2008
    Assignee: Fujitsu Limited
    Inventors: Paparao Palacharla, Hok Yong Pua, Emir Catovic, Harbhajan Vridee