Patents by Inventor John J. Doyle, Jr.

John J. Doyle, Jr. 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: 4852015
    Abstract: A method for operating a digital computer to globally route interconnects between terminals of a gate array. A first terminal closest to an average position of terminals to be interconnected is identified. A second terminal closest to the first terminal is then identified, and a first path between the first and second terminals is established along possible paths. An edge of the first path is set as a routing path if predetermined conditions are met. A closest remaining terminal to an established path is next identified, and a shortest path between the closest terminal and the established path to which it was closest is established. Edges of the shortest path and/or the established path to which it was closest are set as routing paths, if predetermined conditions are met. The above steps are then repeated for remaining terminals to be interconnected. Any possible paths within established paths with no set edges can then be set as routing paths.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: July 25, 1989
    Assignee: ETA Systems, Inc.
    Inventor: John J. Doyle, Jr.