Patents by Inventor Gerald Haennig

Gerald Haennig 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).

  • Bias circuit for a radio frequency power-amplifier and method therefor
    Patent number: 8145158
    Abstract: A wireless communication unit comprises a transmitter having a power amplifier biased by a bias circuit and a controller operably coupled to the bias circuit for setting one or more bias levels of the power amplifier. The bias circuit is a single bias circuit and is configured to provide either a current mode bias control of the power amplifier or a voltage mode bias control of the power amplifier in response to a control signal from the controller. In this manner, a single bias control circuit can be used to support applications that benefit from both current mode bias control and voltage mode bias control of the power amplifier.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: March 27, 2012
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Didier Salle, Arnaud Girardot, Gerald Haennig, Pierre Savary
  • BIAS CIRCUIT FOR A RADIO FREQUENCY POWER-AMPLIFIER AND METHOD THEREFOR
    Publication number: 20090270057
    Abstract: A wireless communication unit comprises a transmitter having a power amplifier biased by a bias circuit and a controller operably coupled to the bias circuit for setting one or more bias levels of the power amplifier. The bias circuit is a single bias circuit and is configured to provide either a current mode bias control of the power amplifier or a voltage mode bias control of the power amplifier in response to a control signal from the controller. In this manner, a single bias control circuit can be used to support applications that benefit from both current mode bias control and voltage mode bias control of the power amplifier.
    Type: Application
    Filed: April 3, 2006
    Publication date: October 29, 2009
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Didier Salle, Arnaud Girardot, Gerald Haennig, Pierre Savary
  • Loop gain equalizer for RF power amplifier
    Patent number: 7605652
    Abstract: The output power of an RF power amplifier is controlled using a feedback loop including a differential integrator for controlling the amplifier's bias voltage. The gain of integration in the differential integrator is varied so as to compensate for variations in the derivative of the power amplifier output power versus the bias voltage.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: October 20, 2009
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Hugues Beaulaton, Gerald Haennig, Didier Salle
  • Loop Gain Equalizer For Rf Power Amplifier
    Publication number: 20080211575
    Abstract: The output power of an RF power amplifier is controlled using a feedback loop including a differential integrator for controlling the amplifier's bias voltage. The gain of integration in the differential integrator is varied so as to compensate for variations in the derivative of the power amplifier output power versus the bias voltage.
    Type: Application
    Filed: August 5, 2005
    Publication date: September 4, 2008
    Applicant: Freescale Semiconductor, inc.
    Inventors: Hugues Beaulaton, Gerald Haennig, Didier Salle