Patents by Inventor Robert Sedlmaier

Robert Sedlmaier 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).

  • Transmitting and receiving unit
    Patent number: 7203466
    Abstract: A transmitting and receiving unit includes a receiving branch and a transmitting branch that are in each case constructed for conducting complex signals, with a control device that drives a switch by which either a phase-locked loop is switched through to frequency converters provided at the transmitting and receiving end, for providing a common carrier frequency, or in each case an independently operating PLL is provided for the transmitting and receiving branch. Such a configuration enables the transmitter, for example, to operate with direct conversion whereas the receiver can operate, for example, on the low IF principle. The invention is suitable for OFDM multi-carrier systems.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: April 10, 2007
    Assignee: Infineon Technologies AG
    Inventors: Claus Muschallik, Bernd Pflaum, Robert Sedlmaier
  • Transmitting and receiving unit
    Publication number: 20040087279
    Abstract: A transmitting and receiving unit includes a receiving branch and a transmitting branch that are in each case constructed for conducting complex signals, with a control device that drives a switch by which either a phase-locked loop is switched through to frequency converters provided at the transmitting and receiving end, for providing a common carrier frequency, or in each case an independently operating PLL is provided for the transmitting and receiving branch. Such a configuration enables the transmitter, for example, to operate with direct conversion whereas the receiver can operate, for example, on the low IF principle. The invention is suitable for OFDM multi-carrier systems.
    Type: Application
    Filed: September 26, 2003
    Publication date: May 6, 2004
    Inventors: Claus Muschallik, Bernd Pflaum, Robert Sedlmaier