Patents by Inventor Franz Helminger

Franz Helminger 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).

  • Capacitive biometric sensor
    Patent number: 7194113
    Abstract: In a capacitive biometric sensor, in particular, a fingerprint sensor, to determine the maximum contrast that can actually be achieved in that application in the gray scale values, in particular, of a fingerprint (dynamic resolution of the sensor), at least one measurement point composed of a dielectric material is integrated above each of the sensor electrodes on a sensor array.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: March 20, 2007
    Assignee: Infineon Technologies AG
    Inventors: Manfred Greschitz, Klaus Gruber, Franz Helminger, Franz Wolf
  • Capacitive biometric sensor
    Publication number: 20030103873
    Abstract: In a capacitive biometric sensor, in particular, a fingerprint sensor, to determine the maximum contrast that can actually be achieved in that application in the gray scale values, in particular, of a fingerprint (dynamic resolution of the sensor), at least one measurement point composed of a dielectric material is integrated above each of the sensor electrodes on a sensor array.
    Type: Application
    Filed: October 15, 2002
    Publication date: June 5, 2003
    Inventors: Manfred Greschitz, Klaus Gruber, Franz Helminger, Franz Wolf