Patents by Inventor Norbert Wirges

Norbert Wirges 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).

  • Circuit arrangement with a filter quadripole
    Patent number: 5864256
    Abstract: A description is given of a circuit arrangement comprisinga filter quadripole having two output terminals anda voltage follower circuit having two terminals, said terminals having identical electric potentials when the voltage follower circuit is in its turned-on state, each of the terminals of the voltage follower circuit being connected to one of the output terminals of the filter quadripole respectively, and the voltage follower circuit only being in its turned-on state during the turn-on time interval of the circuit arrangement. This circuit arrangement is suitable for a receiver circuit, more particularly, for a pager and has a very brief turn-on time.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: January 26, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Burkhard Dick, Manfred Biehl, Winfried Jansen, Bernd Pille, Norbert Wirges