Patents by Inventor Thomas Colvin McDonald

Thomas Colvin McDonald 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 system for adjusting a clock signal within electronic circuitry
    Patent number: 5831459
    Abstract: A method and system are provided. A clock signal is input and output at first and second nodes of integrated circuitry. The first node is connected through a selected one of a plurality of metallization paths of the integrated circuitry to the second node. Each of the metallization paths is connectable between the first and second nodes for delaying the clock signal by a respective amount of time between the first and second nodes, so that the clock signal at the second node is always delayed relative to the first node by the respective amount of time of the selected metallization path.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: November 3, 1998
    Assignee: International Business Machines Corporation
    Inventor: Thomas Colvin McDonald