Patents by Inventor Jack E. Long

Jack E. Long 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).

  • Bi-directional signal coupler method and apparatus
    Patent number: 6426970
    Abstract: A bi-directional signal coupler is incorporated into a transmission/reception communication system and is used for the transmission and reception of signals over a single transmission medium. The bi-directional signal coupler includes a primary nulling device for removing a signal to be transmitted through the bi-directional signal coupler from a signal to be received into the bi-directional signal coupler. The primary removing device provides an output signal representative of the signal to be received plus the signal to be transmitted wherein a level of the signal to be transmitted is removed to a first extent relative to a level of the signal to be received. At least one additional secondary device is provided for removing the signal to be transmitted from the signal to be received in a successive manner.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: July 30, 2002
    Assignee: Clearcube Technology, Inc.
    Inventors: Barry Thornton, Jack E. Long