Patents by Inventor Walt Fant

Walt Fant 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 monitoring optical switches
    Patent number: 6950215
    Abstract: An optical switching apparatus is provided. Generally, a plurality of optical input switches is provided. A plurality of optical output switches is provided. A plurality of central optical switches connected between the plurality of input switches and plurality of output switches is provided. A plurality of test light sources, where each test light source is connected to an optical input switch, is provided. A first plurality of optical detectors connected to the optical output switches is provided.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: September 27, 2005
    Assignee: Calient Networks
    Inventors: Walt Fant, Roger J. Helkey, Tony Walter, Peter Hunt, David Welsh
  • Method and apparatus for monitoring optical switches
    Publication number: 20030012481
    Abstract: An optical switching apparatus is provided. Generally, a plurality of optical input switches is provided. A plurality of optical output switches is provided. A plurality of central optical switches connected between the plurality of input switches and plurality of output switches is provided. A plurality of test light sources, where each test light source is connected to an optical input switch, is provided. A first plurality of optical detectors connected to the optical output switches is provided.
    Type: Application
    Filed: July 11, 2001
    Publication date: January 16, 2003
    Inventors: Walt Fant, Roger J. Helkey, Tony Walter, Peter Hunt, David Welsh