Patents by Inventor Pieter Bas

Pieter Bas 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).

  • System and method for making far end measurements for DSL diagnostics
    Patent number: 8923139
    Abstract: A system is provided for identifying service affecting conditions in an access portion of a network through which a number of subscribers are connected to an exchange. The access network includes subscriber lines connected to DSL subscriber modems. The system includes a receiver for receiving pilot signals from a modem connected to one of the subscriber lines. A measuring unit is operatively associated with the receiver for measuring electrical characteristics of the received pilot signals. A controller is operatively associated with the measuring unit and uses the measured electrical characteristics to identify a service affecting condition. The subscriber modem pilot signals include differential mode signals and the measuring unit measures common mode of each wire of the subscriber line. By using combinations of measurements and deductive logic, the system can detect one or more service affecting conditions.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: December 30, 2014
    Assignee: Tollgrade Communications, Inc.
    Inventors: Muhammad Akbar Khan Afzal, Pieter Bas, Roderick Warner
  • SYSTEM AND METHOD FOR MAKING FAR END MEASUREMENTS FOR DSL DIAGNOSTICS
    Publication number: 20100278050
    Abstract: A system is provided for identifying service affecting conditions in an access portion of a network through which a number of subscribers are connected to an exchange. The access network includes subscriber lines connected to DSL subscriber modems. The system includes a receiver for receiving pilot signals from a modem connected to one of the subscriber lines. A measuring unit is operatively associated with the receiver for measuring electrical characteristics of the received pilot signals. A controller is operatively associated with the measuring unit and uses the measured electrical characteristics to identify a service affecting condition. The subscriber modem pilot signals include differential mode signals and the measuring unit measures common mode of each wire of the subscriber line. By using combinations of measurements and deductive logic, the system can detect one or more service affecting conditions.
    Type: Application
    Filed: July 17, 2008
    Publication date: November 4, 2010
    Applicant: TOLLGRADE COMMUNICATIONS, INC.
    Inventors: Muhammad Akbar Khan Afzal, Pieter Bas, Roderick Warner