Patents by Inventor Russell F. Gundrum

Russell F. Gundrum 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).

  • Digital subscriber line induction neutralizing transformer network
    Patent number: 7266154
    Abstract: A digital subscriber line (DSL) induction-neutralizing transformer (INT) (28) for use in a DSL INT network (10) is provided. The DSL INT (28) includes a core (72) and a coil (74) that is electrically coupled to and wound around the core (72). The coil (74) includes approximately 100-200 feet of approximately 24-gauge wire. The core (72) and coil (74) add longitudinal inductance to a telecommunication line and reduce induced voltage levels at a non-digital subscriber line frequency on the telecommunication line. The DSL INT network (10), containing at least one DSL INT (28), and a method of routing DSL communication signals within the DSL INT network (10), are also provided.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: September 4, 2007
    Assignee: The Southwestern Bell Telephone Co.
    Inventor: Russell F. Gundrum