Patents by Inventor Bernd Schmitfranz

Bernd Schmitfranz 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).

  • Method for contactless measurement of a resistance arranged in the secondary circuit of a transformer and device for carrying out the method
    Patent number: 4973912
    Abstract: A method and a device for transmitting and for measuring resistance values, is particularly provided for use in motor vehicles, for the constant control of airbag systems. In the method and device an exciter signal coupled into a secondary-side resonant LCR circuit from the primary side via inductively coupled coils is interrupted, transmitted back to the primary side of the transformer and is there used for determining the resistance value by evaluating the time constant of the exciter response.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: November 27, 1990
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Detlef Kaminski, Bernd Schmitfranz, Rolf Adomat, Walter Ulke, Burkhard Voigt