Patents by Inventor Xinfa J. Wu

Xinfa J. Wu 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 for fast switchover and recovery of a media gateway
    Patent number: 7827307
    Abstract: A device and method for fast switchover and recovery of a media gateway. A network interface of a router is monitored for a network interface failure, in which the router receives data over a network using a network protocol. In response to detecting a network interface failure, the network interface failure is translated into a gateway protocol understood by the media gateway. The network interface failure is transmitted to the media gateway using the gateway protocol over a primary path, providing for fast switchover time to a redundant path by the media gateway.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: November 2, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Ronald W. Lehrschall, Xinfa J. Wu, Joseph R. Stone, Mychael Vo