Patents by Inventor Richard Sigler

Richard Sigler 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 reducing load distribution delay in an internet protocol switch
    Publication number: 20030161299
    Abstract: Method and apparatus for reducing load distribution delay in an internet protocol switch. A system of messaging allows leader and follower cards within a switch to communicate without spanning the external network and without significant involvement by the central computing module within a switch. When a call setup request is received by a leader card, it sends a broadcast message to follower cards within a multicast group. Each follower card responds with address and channel information which enable the leader card to perform load balancing and establish a connection through the appropriate follower card.
    Type: Application
    Filed: March 25, 2003
    Publication date: August 28, 2003
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Sanjay H. Rao, Kenneth W. Oxendine, Richard Sigler
  • Method and apparatus for reducing load distribution delay in an internet protocol switch
    Patent number: 6587456
    Abstract: Method and apparatus for reducing load distribution delay in an internet protocol switch. A system of messaging allows leader and follower cards within a switch to communicate without spanning the external network and without significant involvement by the central computing module within a switch. When a call setup request is received by a leader card, it sends a broadcast message to follower cards within a multicast group. Each follower card responds with address and channel information which enable the leader card to perform load balancing and establish a connection through the appropriate follower card.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: July 1, 2003
    Assignee: Nortel Networks Limited
    Inventors: Sanjay H. Rao, Kenneth W. Oxendine, Richard Sigler