Patents by Inventor Thomas Ove Emanuelsson

Thomas Ove Emanuelsson 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).

  • Transmit receive switch with high power protection
    Patent number: 7138885
    Abstract: Microwave switch (MS) comprising an antenna branch (AB), a receive branch (RB), and a transmit branch (TB). According to one embodiment, the switch comprises a protection circuit (CPL, DTC, CTRL), which upon a high power signal (Dtc_h) being present on the antenna branch effectuates a biasing of semiconductors on both the receive branch (RB) and the transmit branch (TB). According to one embodiment PIN diodes are provided for controlling switching between the transmit and the receiv branch as well as enabling a protective mode, the control being accomplished by selectively biasing respective diodes.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: November 21, 2006
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Peter Karlsson, Thomas Ove Emanuelsson