Patents by Inventor Gunter Johler

Gunter Johler 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).

  • Illumination system
    Patent number: 8410722
    Abstract: In an illumination system (1) having a control unit (2) and at least one de-central lamp operating device (12, 22) for operating one or more associated lamps (LA), the lamp operating device (12, 22) can be operated in different operational modes. In accordance with the invention the central control unit (2) and the lamp operating device (12, 22) are so configured that the selection and setting of an operational mode for the lamp operating device (12, 22) can be carried out from or via the central control unit (2).
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: April 2, 2013
    Assignee: Zumtobel Lighting GmbH
    Inventors: Günter Johler, Manfred Petschulat, Thomas Roth
  • Illumination System
    Publication number: 20070285026
    Abstract: In an illumination system (1) having a control unit (2) and at least one de-central lamp operating device (12, 22) for operating one or more associated lamps (LA), the lamp operating device (12, 22) can be operated in different operational modes. In accordance with the invention the central control unit (2) and the lamp operating device (12, 22) are so configured that the selection and setting of an operational mode for the lamp operating device (12, 22) can be carried out from or via the central control unit (2).
    Type: Application
    Filed: March 23, 2005
    Publication date: December 13, 2007
    Applicant: ZUMTOBEL LIGHTING GMBH
    Inventors: Gunter Johler, Manfred Petschulat, Thomas Roth
  • Electronic ballast with dimmer and harmonics filter for supplying a load, for example a lamp
    Patent number: 5557174
    Abstract: An electronic ballast (2) which includes an electronic harmonics filter (7), the brightness of a lamp (38) can be determined by employment of a dimmer (1) provided in the mains feed, in that a desired value signal (UM) for setting the frequency (f) of the switch (S) is supplied to the controller (8), which desired value signal depends upon the input or output voltage of a rectifier (4) connected downstream of the dimmer (1), in particular dependent upon the curve form of this voltage.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: September 17, 1996
    Assignee: Tridonic Bauelemente GmbH
    Inventor: Gunter Johler