Patents by Inventor Bernd Maringer

Bernd Maringer 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 and circuit for signal transmission via a current loop
    Patent number: 8885760
    Abstract: A method for signal transmission between a first and a second system; wherein the first and the second system are connected with one another via a current loop. A direct current signal is transmitted in a first frequency range and an alternating current signal in a second frequency range via the current loop. The direct current signal and the alternating current signal are superimposed and the alternating current signal is used for digital signal transmission and the direct current signal is used for analog signal transmission. By means of a control unit, a first data stream is produced, in which the direct current signal and alternating current signal to be set in the current loop are digitally encrypted. The first data stream is transmitted to an electrical current output circuit and the transmitted first data stream is converted by the electrical current output circuit into an electrical current signal.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: November 11, 2014
    Assignee: Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG
    Inventors: Bjorn Haase, Bernd Maringer
  • METHOD AND CIRCUIT FOR SIGNAL TRANSMISSION VIA A CURRENT LOOP
    Publication number: 20120020430
    Abstract: A method for signal transmission between a first and a second system; wherein the first and the second system are connected with one another via a current loop. A direct current signal is transmitted in a first frequency range and an alternating current signal in a second frequency range via the current loop. The direct current signal and the alternating current signal are superimposed and the alternating current signal is used for digital signal transmission and the direct current signal is used for analog signal transmission. By means of a control unit, a first data stream is produced, in which the direct current signal and alternating current signal to be set in the current loop are digitally encrypted. The first data stream is transmitted to an electrical current output circuit and the transmitted first data stream is converted by the electrical current output circuit into an electrical current signal.
    Type: Application
    Filed: March 23, 2010
    Publication date: January 26, 2012
    Applicant: Endress +Hauser Conducta Gesellschaft fur Mess-und Regeltechnik mbH +Co., KG
    Inventors: Bjorn Haase, Bernd Maringer