Patents by Inventor Kenneth E. Burchfield

Kenneth E. Burchfield 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).

  • Predistortion linearizer and method for linearizing a nonlinear device
    Patent number: 6794937
    Abstract: A predistortion linearizer, transmitter and method for linearizing a nonlinear device (e.g., power amplifier, mixer) are described. The predistortion linearizer includes a coupling circuit, a diode and a direct current adjusting circuit that work together to generate a distorted signal which is reflected onto a signal path and inputted into the nonlinear device. The distorted signal compensates for at least some of the nonlinear spurs introduced by the nonlinear device to an input signal which was also applied to the signal path and inputted into the nonlinear device. As a result, the nonlinear device outputs a compensated output signal.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: September 21, 2004
    Assignee: Alcatel
    Inventors: Theodore Timaru, Kenneth E. Burchfield