Patents by Inventor James Koeppe

James Koeppe 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).

  • Single ended tuning of a differential power amplifier output
    Patent number: 6844792
    Abstract: A system and method for compensating a parasitic capacitance on a differential amplifier output includes a first differential output and a second differential output of the differential amplifier. The first differential output coupled to the second differential output by a first conductor that has a length of about one half wavelength. The first and the second differential outputs have a parasitic capacitance that can be measured. A second conductor is coupled to the first differential output. The second conductor having a length that is less than or equal to about one quarter wavelength and has an inductive reactance that offsets a capacitive reactance of the parasitic capacitance.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: January 18, 2005
    Assignee: Zeevo
    Inventors: James Koeppe, Tom McKay, Vas Postoyalko