Patents by Inventor Holger Morbitzer

Holger Morbitzer 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).

  • Transceiver with controlled transmit/receive impedance switching device
    Patent number: 5678199
    Abstract: A transmit/receive radio set having a transmitter output stage, a receiver input stage, and an antenna switching device for change-over between transmission and reception by a single antenna. Two impedance transformers are provided at the output of the transmitter output stage. A switching circuit effects a change-over of the output impedance of the transmitter output stage during transmission and reception by controlling the impedance of at least one of the impedance transformers.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: October 14, 1997
    Assignee: U.S. Philips Corporation
    Inventors: Winfried Birth, Christopher Marshall, Erich Saur, Holger Morbitzer