Patents by Inventor Jan Elizabeth Hoffman

Jan Elizabeth Hoffman 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).

  • Generating rules for nets that cross package boundaries
    Patent number: 7512907
    Abstract: In an embodiment, data models are stitched into a stitched data model, where each of the data models has nets and at least one of the nets crosses a package boundary. A subset of the nets from the stitched data model are selected based on a constraint, and the subset is stitched into a common rule. In various embodiments, the constraints may include a wire length, a name of the nets, and maximum numbers of vias or T-connections. If the nets are completely wired, then wire segments between nodes of the nets are connected and nodes that include non-branching vias are moved. If the nets are not completely wired, then for any of the nets that have an open connection, a rule is found with a same number of the nodes as the net with the open connection, and the nets are ordered based on the rule.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: March 31, 2009
    Assignee: International Business Machines Corporation
    Inventors: Jacqueline Denise Cromity, Kenneth Lee Christian, Jan Elizabeth Hoffman, Lawrence Wayne Wood, John William Zack
  • Simulation management system
    Patent number: 7131080
    Abstract: A method, apparatus and program product oversee and coordinate the automatic generation, monitoring and submission of package files and other modeling processes to enable focused, flexible and efficient modeling of design performance characteristics.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: October 31, 2006
    Assignee: International Business Machines Corporation
    Inventors: Thaddeus Chen, Zhaoqing Chen, Hubert Harrer, Jan Elizabeth Hoffman, Susan Marie Karwoski, Joonsuk Park, Edwin Scott Reichmann, Stephen Bruce White, John W. Zack
  • Electronic circuit design analysis system
    Patent number: 7111275
    Abstract: A method, apparatus and program product generate package files that are separately stored and selectively combined to generate a net file suited for system simulation and analysis. Selective combination of the package files using respective reference connections of each package enables focused and efficient modeling of design performance characteristics.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: September 19, 2006
    Assignee: International Business Machines Corporation
    Inventors: Thaddeus Chen, Zhaoqing Chen, Hubert Harrer, Jan Elizabeth Hoffman, Susan Marie Karwoski, Joonsuk Park, Stephen Bruce White, John W. Zack