Patents by Inventor Mahmoud Darvish-Zadeh

Mahmoud Darvish-Zadeh 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).

  • Linearization of an amplifier
    Patent number: 7053709
    Abstract: The present invention relates to a method of linearization an amplifier (4) and also to amplifier circuitry. The method comprises the steps of generating a linearization signal (10) that substantially corresponds to low-frequency components of the square of an input signal (7) to the amplifier (4), processing the linearization signal, combining (15) the linearization signal with the input signal to form a modified input signal, and amplifying the modified input signal by means of the amplifier (4).
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: May 30, 2006
    Assignee: Nokia Corporation
    Inventors: Mahmoud Darvish-Zadeh, Ahmad Khanifar, William Jenkins