Patents by Inventor Clifford E. Yackle

Clifford E. Yackle 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).

  • Equivalent working length determinative system for digital subscriber line circuits
    Patent number: 7620154
    Abstract: An equivalent working length (EWL) determinative system (11) for use in a digital subscriber line (DSL) telecommunication network (10) is provided. The EWL system (11) includes a DSL circuit (32) having a customer site (14) with customer premises equipment (30). The customer premises equipment (30) receives and transmits communication signals and generates a first attenuation signal in response to the communication signals. A remote terminal (20) forms a loop (31) with the customer site (14) and has a loop length. The remote terminal (20) includes a remote terminal transceiver (40) that is in communication with the customer premises equipment (30). A main controller (37) is electrically coupled to the customer premises equipment (30) and determines an EWL of the loop (31) in response to the first attenuation signal. A method of performing the same is also provided.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: November 17, 2009
    Inventors: G. Keith Cambron, David L. Kimble, Clifford E. Yackle, Richard D. Hart
  • Equivalent working length determinative system for digital subscriber line circuits
    Publication number: 20040120470
    Abstract: An equivalent working length (EWL) determinative system (11) for use in a digital subscriber line (DSL) telecommunication network (10) is provided. The EWL system (11) includes a DSL circuit (32) having a customer site (14) with customer premises equipment (30). The customer premises equipment (30) receives and transmits communication signals and generates a first attenuation signal in response to the communication signals. A remote terminal (20) forms a loop (31) with the customer site (14) and has a loop length. The remote terminal (20) includes a remote terminal transceiver (40) that is in communication with the customer premises equipment (30). A main controller (37) is electrically coupled to the customer premises equipment (30) and determines an EWL of the loop (31) in response to the first attenuation signal. A method of performing the same is also provided.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 24, 2004
    Applicant: SBC Properties, L.P.
    Inventors: G. Keith Cambron, David L. Kimble, Clifford E. Yackle, Richard D. Hart