Patents by Inventor Ludlow V. Corbin, II

Ludlow V. Corbin, II 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).

  • Method and apparatus for designing integrated circuits
    Patent number: 5097422
    Abstract: A method and apparatus for determining integrated circuit layouts from a virtual circuit description and specification of a technology. Starting with high-level descriptions of a circuit, a virtual geometric description of the circuit is developed using a virtual grid described in terms of reference points relative to a substrate surface. The relationships among the reference points are expressed as fractions of variables that can also be used to define the design rules. When the technology is specified, the relationships among the reference points is determined, as in the layout of the integrated circuit.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: March 17, 1992
    Assignee: Cascade Design Automation Corporation
    Inventors: Ludlow V. Corbin, II, Steven G. Danielson, Richard E. Oettel, Mark E. Rossman, James E. Thiele