Patents by Inventor Cordula Feibig

Cordula Feibig 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).

  • Tuned antenna resonant circuit of a passive transponder
    Patent number: 6952560
    Abstract: A tuned antenna resonant circuit substantially increases the range of a passive transponder in a high-frequency electromagnetic carrier field, in that the real and imaginary parts of the impedance associated with the contact surface of the antenna contact are minimized and the energy absorbed from the carrier field by a serial resonant circuit is used to the greatest possible extent for generating the supply voltage for the integrated circuit of the transponder.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: October 4, 2005
    Assignee: ATMEL Germany GbmH
    Inventors: Cordula Feibig, Ulrich Friedrich
  • Method for tuning an antenna resonant circuit of a passive transponder
    Publication number: 20020171602
    Abstract: In the previously known methods for tuning the antenna resonant circuit, in the case of passive transponders, their range in a high-frequency carrier field is generally limited to a few cm as the supply voltage for the integrated circuit gained from the carrier field falls very quickly with increasing distance.
    Type: Application
    Filed: May 13, 2002
    Publication date: November 21, 2002
    Applicant: ATMEL Germany GmbH
    Inventors: Cordula Feibig, Ulrich Friedrich