Patents by Inventor Philip Macphall

Philip Macphall 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).

  • Segmented switching power amplifier
    Patent number: 7369822
    Abstract: A novel transmitter circuit is disclosed for receiving of an input signal and for providing of an amplitude increased RF output signal. Pluralities of switching power amplifiers are disposed along two signal propagating circuit branches and utilized for increasing a magnitude of the input signal, to form an output signal, which is a magnitude increased version of the input signal. Each of the switching power amplifiers utilizes switching elements having various magnitude increasing capacity and coupled to a control circuit for each being switchably selectable for providing of the magnitude increase to the input signal.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: May 6, 2008
    Assignee: SiGe Semiconductor Inc.
    Inventors: Jeremy Loraine, Jeffery Wojtiuk, Philip Macphall
  • Segmented switching power amplifier
    Publication number: 20050260956
    Abstract: A novel transmitter circuit is disclosed for receiving of an input signal and for providing of an amplitude increased RF output signal. Pluralities of switching power amplifiers are disposed along two signal propagating circuit branches and utilized for increasing a magnitude of the input signal, to form an output signal, which is a magnitude increased version of the input signal. Each of the switching power amplifiers utilizes switching elements having various magnitude increasing capacity and coupled to a control circuit for each being switchably selectable for providing of the magnitude increase to the input signal.
    Type: Application
    Filed: May 18, 2004
    Publication date: November 24, 2005
    Inventors: Jeremy Loraine, Jeffery Wojtiuk, Philip Macphall