Patents by Inventor William P DeBruyn

William P DeBruyn 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).

  • Uncorrelated adaptive predistorter
    Patent number: 7403573
    Abstract: An uncorrelated adaptive predistorer configured for use with an RF power amplifier having an input loop configured to be coupled to the input of the RF power amplifier an output loop coupled to the output of the RF power amplifier. Such an input loop includes a look-up table containing predistortion values to be apply to an input signal, in response to a monotonically increasing function of the input signal power, for forming a predistorted input signal. Such an output loop configured to measure an intermodulation distortion product of the RF power amplifier output resulting from the predistorted input signal, and operable to update the predistortion values in the look-up table.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: July 22, 2008
    Assignee: Andrew Corporation
    Inventors: William P. DeBruyn, Edward V. Louis, Rajiv Chandrasekaran
  • Seamless redundant echo canceller replacement in a multi-channel echo canceller
    Patent number: 7120130
    Abstract: An echo cancelling system comprises a system controller for directing inbound and outbound PCM signals to one of two echo canceller modules. The system controller receives status information from the echo cancellers and maintains state information pertaining to the active echo canceller, in order to allow seamless switchover from one echo canceller to the other without interrupting service.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: October 10, 2006
    Assignee: Tellabs Operations, Inc.
    Inventors: Bruce M Bina, William P DeBruyn, Steven M Sagerian, Timothy R Housel
  • Uncorrelated adaptive predistorter
    Publication number: 20040136470
    Abstract: An uncorrelated adaptive predistorer configured for use with an RF power amplifier having an input loop configured to be coupled to the input of the RF power amplifier an output loop coupled to the output of the RF power amplifier. Such an input loop includes a look-up table containing predistortion values to be apply to an input signal, in response to a monotonically increasing function of the input signal power, for forming a predistorted input signal. Such an output loop configured to measure an intermodulation distortion product of the RF power amplifier output resulting from the predistorted input signal, and operable to update the predistortion values in the look-up table.
    Type: Application
    Filed: January 15, 2003
    Publication date: July 15, 2004
    Applicant: Andrew Corporation
    Inventors: William P. DeBruyn, Edward V. Louis, Rajiv Chandrasekaran
  • Seamless redundant echo canceller replacement in a multi-channel echo canceller
    Publication number: 20030067888
    Abstract: An echo cancelling system comprises a system controller for directing inbound and outbound PCM signals to one of two echo canceller modules. The system controller receives status information from the echo cancellers and maintains state information pertaining to the active echo canceller, in order to allow seamless switchover from one echo canceller to the other without interrupting service.
    Type: Application
    Filed: October 10, 2001
    Publication date: April 10, 2003
    Inventors: Bruce M. Bina, William P. DeBruyn, Steven M. Sagerian, Timothy R. Housel