Patents by Inventor Narasimhareddy Annapareddy

Narasimhareddy Annapareddy 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).

  • Adaptive and dynamic message routing system for multinode wormhole networks
    Patent number: 5602839
    Abstract: In a multinode communication or multiprocessor network, messages are communicated from one node to another using an adaptive and dynamic routing scheme. The routing scheme includes two-level multi-path routing tables at each node to ensure efficient delivery of the messages. An entry in the level-1 table identifies a group of nodes and entry in the level-2 table identifies the address for each node within that group. The routing scheme also includes a deflection counter in each message header to avoid endless rerouting of messages and an exponential backoff and retry policy to avoid deadlocks.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: February 11, 1997
    Assignee: International Business Machines Corporation
    Inventors: Narasimhareddy Annapareddy, James T. Brady, Damon W. Finney