Patents by Inventor Roque M. Ip

Roque M. Ip 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).

  • Methods and systems for emergency routing restoration
    Patent number: 6111852
    Abstract: A method of accomplishing switchover from an inservice local to a remote NP (Network Processor) is described. The remote NP is periodically updated with configuration data obtained from the inservice local NP. Switchover from the local inservice NP to the remote NP is initiated. Communications between the remote NP and a plurality of NEs (Network Elements) is established nonsynchronously. The local NP is notified that the remote NP is established as an inservice NP.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: August 29, 2000
    Assignee: Nortel Networks Corporation
    Inventors: William C. Leung, Weilin Wang, Roque M. Ip, Joyce A. Bradley, Syed Ayaz Ahmed, He Huang