Patents by Inventor Stephen Contreras

Stephen Contreras 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).

  • Designing a circuit apparatus with multiple propagation speeds of signals
    Publication number: 20070180420
    Abstract: Designing a circuit apparatus involves determining locations and lengths of routing paths for signals, routing paths of a first length range being located in a first layer, and routing paths of a second length range being located in a second layer; determining propagation speeds for the signals to propagate through the routing paths within a propagation time range; and selecting dielectric materials for the layers in accordance with the determined propagation speeds for the routing paths.
    Type: Application
    Filed: March 26, 2007
    Publication date: August 2, 2007
    Inventors: Reza Bacchus, Stephen Contreras, Mitchel Wright
  • Multiple propagation speeds of signals in layered circuit apparatus
    Publication number: 20050240888
    Abstract: A first signal passes through a first layer of a circuit apparatus at a first propagation speed, and a second signal passes through a second layer of the circuit apparatus at a second propagation speed different from the first propagation speed.
    Type: Application
    Filed: April 27, 2004
    Publication date: October 27, 2005
    Inventors: Reza Bacchus, Stephen Contreras, Mitchel Wright