Patents by Inventor David John Geiger

David John Geiger 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).

  • Hierarchy-driven logical and physical synthesis co-optimization
    Patent number: 10891411
    Abstract: A method includes receiving a source file specifying circuit components and electrical connections therebetween. At least a portion of the circuit components and electrical connections are within one or more of a set of logical hierarchical groupings, and a given one of the groupings has one or more electrical connections to at least another one of the groupings. The method also includes selecting an initial subset of the groupings based on one or more characteristics of respective ones of the set of groupings and performing individual logical optimization of respective ones of the initial subset. The method further includes determining a revised subset based on the one or more characteristics of the respective ones of the set of groupings as modified by the logical optimization, and performing global physical optimization of the circuit components and electrical connections based at least in part on the revised subset.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: January 12, 2021
    Assignee: International Business Machines Corporation
    Inventors: Gi-Joon Nam, David John Geiger, Paul G. Villarrubia, Shyam Ramji, Myung-Chul Kim, Benjamin Neil Trombley
  • HIERARCHY-DRIVEN LOGICAL AND PHYSICAL SYNTHESIS CO-OPTIMIZATION
    Publication number: 20200175122
    Abstract: A method includes receiving a source file specifying circuit components and electrical connections therebetween. At least a portion of the circuit components and electrical connections are within one or more of a set of logical hierarchical groupings, and a given one of the groupings has one or more electrical connections to at least another one of the groupings. The method also includes selecting an initial subset of the groupings based on one or more characteristics of respective ones of the set of groupings and performing individual logical optimization of respective ones of the initial subset. The method further includes determining a revised subset based on the one or more characteristics of the respective ones of the set of groupings as modified by the logical optimization, and performing global physical optimization of the circuit components and electrical connections based at least in part on the revised subset.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 4, 2020
    Inventors: Gi-Joon Nam, David John Geiger, Paul G. Villarrubia, Shyam Ramji, Myung-Chul Kim, Benjamin Neil Trombley