Patents by Inventor Eric Martin Nequist

Eric Martin Nequist 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).

  • Non-orthogonal structures and space tiles for layout, placement, and routing of an integrated circuit
    Patent number: 7516433
    Abstract: Disclosed is an improved approach for maintaining the structures for objects in a layout. A single type of structure is maintained that can be used to store or track a polygon of any shape, as long as the shape possesses a supported number of sides. The structure is capable of supporting irregular polygons or objects having angled edges. In one approach, the structure maintains information about each polygon as if that polygon is an octagon. Therefore, any polygon having eight or less orthogonal or diagonal sides can be supported using this structure.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: April 7, 2009
    Assignee: Cadence Design Systems, Inc.
    Inventors: Steven Lee Pucci, Eric Martin Nequist
  • Non-orthogonal structures and space tiles for layout, placement, and routing of an integrated circuit
    Patent number: 7096445
    Abstract: Disclosed is an improved approach for maintaining the structures for objects in a layout. A single type of structure is maintained that can be used to store or track a polygon of any shape, as long as the shape possesses a supported number of sides. The structure is capable of supporting irregular polygons or objects having angled edges. In one approach, the structure maintains information about each polygon as if that polygon is an octagon. Therefore, any polygon having eight or less orthogonal or diagonal sides can be supported using this structure.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: August 22, 2006
    Assignee: Cadence Design Systems, Inc.
    Inventors: Steven Lee Pucci, Eric Martin Nequist