Patents by Inventor John Capwell

John Capwell 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).

  • Global equivalent circuit modeling system for substrate mounted circuit components incorporating substrate dependent characteristics
    Patent number: 7269810
    Abstract: The present invention is a substrate dependent circuit modeling system for substrate-mounted components. The height and dielectric constant of a substrate have a significant impact on the frequency response of such components, and these effects cannot be treated independently from the circuit model. The equivalent circuit parameters in the model must be made to vary in accordance with changes in the substrate.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: September 11, 2007
    Assignee: University of South Florida
    Inventors: Thomas Weller, John Capwell, Horace Gordon, Balaji Lakshminarayanan
  • Global equivalent circuit modeling system for substrate mounted circuit components incorporating substrate dependent characteristics
    Patent number: 7003744
    Abstract: The present invention is a substrate dependent circuit modeling system for substrate-mounted components. The height and dielectric constant of a substrate have a significant impact on the frequency response of such components, and these effects cannot be treated independently from the circuit model. The equivalent circuit parameters in the model must be made to vary in accordance with changes in the substrate.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: February 21, 2006
    Assignee: University of South Florida
    Inventors: Thomas Weller, John Capwell
  • Global Equivalent Circuit Modeling System for Substrate Mounted Circuit Components Incorporating Substrate Dependent Characteristics
    Publication number: 20040128633
    Abstract: The present invention is a substrate dependent circuit modeling system for substrate-mounted components. The height and dielectric constant of a substrate have a significant impact on the frequency response of such components, and these effects cannot be treated independently from the circuit model. The equivalent circuit parameters in the model must be made to vary in accordance with changes in the substrate.
    Type: Application
    Filed: April 18, 2003
    Publication date: July 1, 2004
    Inventors: Thomas Weller, John Capwell