Patents by Inventor Kumar V. Peddanarappagari

Kumar V. Peddanarappagari 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).

  • Loss-less architecture and method for wavelength division multiplexing (WDM) optical networks
    Patent number: 7155124
    Abstract: A node for an optical network includes a demultiplexer operable to separate an ingress wavelength division multiplexed (WDM) signal into a plurality of ingress channels. An ingress amplifier array is coupled to the demultiplexer and includes a plurality of channel amplifiers. The channel amplifiers are each operable to independently amplify one of the ingress channels while maintaining a channel power variation between the channels within an operational limit of the network.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: December 26, 2006
    Assignee: Fujitsu Limited
    Inventors: Kumar V. Peddanarappagari, Paparao Palacharla
  • Loss-less architecture and method for wavelength division multiplexing (WDM) optical networks
    Publication number: 20040208542
    Abstract: A node for an optical network includes a demultiplexer operable to separate an ingress wavelength division multiplexed (WDM) signal into a plurality of ingress channels. An ingress amplifier array is coupled to the demultiplexer and includes a plurality of channel amplifiers. The channel amplifiers are each operable to independently amplify one of the ingress channels while maintaining a channel power variation between the channels within an operational limit of the network.
    Type: Application
    Filed: May 31, 2002
    Publication date: October 21, 2004
    Inventors: Kumar V. Peddanarappagari, Paparao Palacharla