Patents by Inventor Jesper Olsander

Jesper Olsander 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).

  • Antenna switches including field effect transistors
    Patent number: 7197284
    Abstract: The present invention provides a transceiver circuit that includes a transmission amplifier coupled with an antenna input/output node. The transmission amplifier is configured to amplify communications to be transmitted from the transceiver circuit. The transceiver circuit further includes a receiver and a field effect transistor. The receiver includes a receiver input coupled with the antenna input/output node. The field effect transistor is coupled between the receiver input and an electrical reference. The field effect transistor is configured to provide an open circuit when communications are received at the receiver input and to provide a closed circuit when communications are not being received at the receiver input.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: March 27, 2007
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Per-Olof Brandt, Jesper Olsander