Patents by Inventor Par Seth Thure Bergsten

Par Seth Thure Bergsten 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).

  • Method and apparatus for wideband predistortion linearization
    Patent number: 6075411
    Abstract: A predistortion signal is generated which compensates for third order and higher order intermodulation distortion over a wideband. The predistortion signal is applied to an input radio frequency signal, for example a multi-tone radio frequency signal. The predistortion signal is a low order polynomial having adjustable coefficients. The predistortion signal can compensate for intermodulation products produced a nonlinear amplifier, and the polynomial coefficients can be adjusted based on the difference between the amplifier output and the input radio frequency signal.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: June 13, 2000
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Mark Anthony Briffa, Par Seth Thure Bergsten