Patents by Inventor Ravinder Hans

Ravinder Hans 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 for high power amplifiers
    Patent number: 6112062
    Abstract: A predistorter for linear amplification of a complex modulated signal has an input stage, an envelope detector having at least one fast diode and a capacitor at an output for measuring an amplitude of an RF signal, first and second differentiators for taking first and second derivatives with respect to time; and a predistorter controller for adjusting an attenuator and phase shifter based upon the derivatives.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: August 29, 2000
    Assignee: The Whitaker Corporation
    Inventors: Ravinder Hans, Bernard J. Arntz