Patents by Inventor Marcelo Johann

Marcelo Johann 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).

  • Methods and apparatus for providing flexible timing-driven routing trees
    Publication number: 20070159984
    Abstract: A method of producing a flexible timing-driven routing tree is provided. Two or more target nodes are sorted in accordance with data criticality. A source-sink grid is built from one or more source nodes and the two or more target nodes. An initial routing tree is built comprising the one or more source nodes. A routing tree generation algorithm is executed on the initial routing tree, utilizing the sorted two or more target nodes and the source-sink grid in accordance with a user-defined timing factor to construct a flexible timing-driven routing tree. The user-defined timing factor specifies an extent of isolation for a routing path from a given one of the one or more source nodes to a given one of the two or more target nodes.
    Type: Application
    Filed: January 12, 2006
    Publication date: July 12, 2007
    Applicant: International Business Machines Corporation
    Inventors: Renato Hentschke, Marcelo Johann, Jagannathan Narasimhan, Ricardo Reis