Patents by Inventor Andrew R. Conn

Andrew R. Conn 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).

  • Patent number: 6321362
    Abstract: A method of pruning an initial timing graph for static optimization of a digital circuit includes examining a first group of nodes, which in turn include at least a first one of the nodes in the initial timing graph, to determine whether every node in the first group is prunable. The method further includes pruning the first group by pruning every node therein, if every node therein is prunable, and if the pruning would be beneficial. Furthermore, the method includes repeating the examining and pruning steps for a substantial number of additional groups of nodes, so as to create a pruned timing graph having enhanced numerical qualities and/or compactness compared to an initial timing graph. The pruning can be conducted on groups of more than one node at a time, or on only individual nodes at one time.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: November 20, 2001
    Assignee: International Business Machines Corporation
    Inventors: Andrew R. Conn, Chandramouli Visweswariah