Patents by Inventor Ralf Gregory

Ralf Gregory 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).

  • RF power amplifier control
    Patent number: 5378996
    Abstract: An RF power amplifier is provided having means for defining rise and fall envelopes of the RF power, i.e. the key and de-key characteristics. A power amplifier (10), detector (13) and regulator (15 ) form a power control feedback loop. A further regulator (21) is provided having a first input coupled to the output of the power control loop regulator and an output coupled to the input of the power control loop regulator, thereby providing negative feedback to the power control loop regulator. Means are provided, coupled to a second input of the further regulator for providing a rising and falling control signal (Vramp) for control of the power amplifier.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: January 3, 1995
    Assignee: Motorola, Inc.
    Inventors: Klaus Pai, Ralf Gregory