Patents by Inventor Robert Louis Palandech

Robert Louis Palandech 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, device, phone and base station for providing envelope-following for variable envelope radio frequency signals
    Patent number: 6141541
    Abstract: A method (200) and device (100) provide an efficient linear power amplifier that generates a variable-envelope radio frequency RF signal. The method includes the steps of: A) using an efficient envelope-following unit to output a supply voltage in accordance with a variable envelope of an input baseband signal, wherein using the efficient envelope-following unit includes: 1) using a bandwidth-limiting mapping unit to determine a reference signal based on the baseband signal; and 2) using an envelope-tracking power converter to output a supply voltage, responsive to the reference signal, to the linear RF power amplifier; B) providing an RF input signal with amplitude and phase information to a linear RF power amplifier; and C) using the linear RF power amplifier to output a power-efficient amplified variable-envelope RF signal with substantially a same amplitude and phase information as the RF input signal.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: October 31, 2000
    Assignee: Motorola, Inc.
    Inventors: Pallab Midya, Lawrence E. Connell, Steven F. Gillig, John Grosspietsch, Andrew Merritt Khan, George Francis Opas, Robert Louis Palandech