Patents by Inventor Weiyi Zhang

Weiyi Zhang 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 ROUTING TRAFFIC USING ASYMMETRICAL OPTICAL CONNECTIONS
    Publication number: 20150155962
    Abstract: A method, computer-readable storage device and apparatus for routing traffic in a reconfigurable optical add-drop multiplexer layer of a dense wavelength division multiplexing network are disclosed. For example, the method determines the reconfigurable optical add-drop multiplexer layer has asymmetric traffic, and routes the asymmetric traffic in the reconfigurable optical add-drop multiplexer layer over a plurality of asymmetrical optical connections, wherein the plurality of asymmetrical optical connections is provided with only uni-directional equipment in the reconfigurable optical add-drop multiplexer layer.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 4, 2015
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: BALAGANGADHAR G. BATHULA, Angela L. Chiu, Mark David Feuer, Rakesh Kumar Sinha, John Lester Strand, Sheryl Leigh Woodward, Weiyi Zhang