Patents by Inventor Donna M. Krizman

Donna M. Krizman 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 adaptive predistortion
    Patent number: 6614854
    Abstract: Distortion introduced into a multiamplitude signal format or amplitude and phase signal format by a high power microwave amplifier is compensated by a system which adapts itself to non-linearities present in the amplifier and predistorts the input signals before they are subjected to the non-linearities created by the amplifier. The degree of predistortion is non-fixed and varies or is updated as the non-linear conversion characteristics of the amplifier change with time. The distortion can also be compensated by using a power curve look-up table.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: September 2, 2003
    Assignee: Carriercomm, Inc.
    Inventors: Peter El Kwan Chow, Roger A. Babb, Donna M. Krizman