Patents by Inventor Elmar Herzer

Elmar Herzer 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).

  • Patent number: 9423482
    Abstract: A sensor arrangement has a current regulator, a reference resistance a feed current scaler and a sensor element having an internal resistance, the internal resistance of the sensor element and the reference resistance having a predetermined ratio. The current regulator is implemented to provide a reference current by the reference resistance and to change the reference current in response to an interference influence-conditioned change of the reference resistance such that the voltage decreasing across the reference resistance remains in a predetermined range around an applied set voltage. The current regulator is implemented to provide a feed current to the feed current scaler and to change a magnitude of the feed current depending on a magnitude of the reference current. The feed current scaler is implemented to feed a scaled feed current into the sensor element to scale a voltage according to the scaling of the feed current.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: August 23, 2016
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Elmar Herzer, Ulrich Schlag, Josef Sauerer
  • Publication number: 20140055146
    Abstract: A sensor arrangement has a current regulator, a reference resistance a feed current scaler and a sensor element having an internal resistance, the internal resistance of the sensor element and the reference resistance having a predetermined ratio. The current regulator is implemented to provide a reference current by the reference resistance and to change the reference current in response to an interference influence-conditioned change of the reference resistance such that the voltage decreasing across the reference resistance remains in a predetermined range around an applied set voltage. The current regulator is implemented to provide a feed current to the feed current scaler and to change a magnitude of the feed current depending on a magnitude of the reference current. The feed current scaler is implemented to feed a scaled feed current into the sensor element to scale a voltage according to the scaling of the feed current.
    Type: Application
    Filed: October 25, 2013
    Publication date: February 27, 2014
    Inventors: Elmar HERZER, Ulrich SCHLAG, Josef SAUERER
  • Patent number: 7598732
    Abstract: A waveguide driving circuit for generating a current pulse in a waveguide includes a voltage source for providing a direct voltage, a choke the first terminal of which is coupled to a first terminal of the voltage source, a first switch the first terminal of which is coupled to a second terminal of the choke and the second terminal of which is coupled to a second terminal of the voltage source, the waveguide the first terminal of which at a first waveguide end is coupled to the first terminal of the first switch and the second terminal of which at the first waveguide end is coupled to a second terminal of the voltage source, and a controller implemented to open and close the first switch, to generate a current pulse at the terminals of the waveguide at the first waveguide end.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: October 6, 2009
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Michael Hackner, Elmar Herzer
  • Publication number: 20070290921
    Abstract: A waveguide driving circuit for generating a current pulse in a waveguide includes a voltage source for providing a direct voltage, a choke the first terminal of which is coupled to a first terminal of the voltage source, a first switch the first terminal of which is coupled to a second terminal of the choke and the second terminal of which is coupled to a second terminal of the voltage source, the waveguide the first terminal of which at a first waveguide end is coupled to the first terminal of the first switch and the second terminal of which at the first waveguide end is coupled to a second terminal of the voltage source, and a controller implemented to open and close the first switch, to generate a current pulse at the terminals of the waveguide at the first waveguide end.
    Type: Application
    Filed: June 15, 2007
    Publication date: December 20, 2007
    Inventors: Michael HACKNER, Elmar HERZER
  • Patent number: 7129698
    Abstract: The present invention is based on the finding that the evaluation of the sensor signals of a position sensor with a mechanical period or, in general terms, the cooperation between position sensors and evaluation units, can be improved by eliminating divergence between the electrically optimal period and the mechanically optimal period. According to the present invention this is achieved in that the position sensor signal, which has a period which depends on the mechanical period of the scale of the position sensor, is translated into a translated signal with a period which corresponds to a second mechanical period, which e.g. has been set to the electrically optimal period, prior to—or for the purpose of—transmitting it to an evaluation unit, whereby not only can transmission errors be minimized and the evaluability improved but a complicated mechanical adjustment of the scale of the position sensor relative to the evaluation unit is avoided.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: October 31, 2006
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.v.
    Inventor: Elmar Herzer
  • Publication number: 20050052179
    Abstract: The present invention is based on the finding that the evaluation of the sensor signals of a position sensor with a mechanical period or, in general terms, the cooperation between position sensors and evaluation units, can be improved by eliminating divergence between the electrically optimal period and the mechanically optimal period. According to the present invention this is achieved in that the position sensor signal, which has a period which depends on the mechanical period of the scale of the position sensor, is translated into a translated signal with a period which corresponds to a second mechanical period, which e.g. has been set to the electrically optimal period, prior to—or for the purpose of—transmitting it to an evaluation unit, whereby not only can transmission errors be minimized and the evaluability improved but a complicated mechanical adjustment of the scale of the position sensor relative to the evaluation unit is avoided.
    Type: Application
    Filed: June 27, 2002
    Publication date: March 10, 2005
    Inventor: Elmar Herzer