Patents by Inventor Jan Ellman

Jan Ellman 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).

  • Arrangement for controlling light emitting diodes
    Patent number: 8310167
    Abstract: In a circuit arrangement for controlling light emitting diodes (LEDs), which are combined in an indicating table, including a voltage supply, at least one driver which is connected to the voltage supply and has current outputs by way of which current can be supplied to the LEDs as well as at least one control input via which the current being supplied to the LEDs is controllable, a control element is provided by which the number of the LEDs to which current has to be supplied at the same time can be determined and a signal indicative of the number determined can be supplied to the control input of the driver for assisting in controlling the power supply to the LEDs.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: November 13, 2012
    Assignee: INIT Innovative Informatikanwendungen in Transport; Verkehrs-und Leitsystemen GmbH
    Inventors: Jan Ellman, Michael Gültig, Martin Pados
  • Arrangement for controlling light emitting diodes
    Publication number: 20100327756
    Abstract: In a circuit arrangement for controlling light emitting diodes (LEDs), which are combined in an indicating table, including a voltage supply, at least one driver which is connected to the voltage supply and has current outputs by way of which current can be supplied to the LEDs as well as at least one control input via which the current being supplied to the LEDs is controllable, a control element is provided by which the number of the LEDs to which current has to be supplied at the same time can be determined and a signal indicative of the number determined can be supplied to the control input of the driver for assisting in controlling the power supply to the LEDs.
    Type: Application
    Filed: June 11, 2010
    Publication date: December 30, 2010
    Inventors: Jan Ellman, Michael Gültig, Martin Pados