Patents by Inventor Marco Foggi

Marco Foggi 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).

  • Lighting device with a LED used for sensing
    Patent number: 8258707
    Abstract: A lighting device (10) comprises a LED (4), a driver (3), and a controller (2) which regularly switches from a drive state to a measuring state and back. In the measuring state, the controller controls the driver such that the driver does not generate any LED current. The LED produces a measuring signal (Sm) indicating a measured light level. The controller processes the measuring signal received from the LED, and makes a decision on the desired light output of the LED. In the drive state, the controller controls the driver such that the average light output produced by the LED corresponds to the desired light output as determined in the measuring state. In a possible embodiment, the driver generates a nominal LED current INOM, and sets the duration (?1) of the drive state on the basis of the desired light output of the LED as determined in the measuring state.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: September 4, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Geert Willem Van Der Veen, Johan Wilhelmus Hermanus Kuppen, Marco Foggi
  • LIGHTING DEVICE WITH A LED USED FOR SENSING
    Publication number: 20100117543
    Abstract: A lighting device (10) comprises a LED (4), a driver (3), and a controller (2) which regularly switches from a drive state to a measuring state and back. In the measuring state, the controller controls the driver such that the driver does not generate any LED current. The LED produces a measuring signal (Sm) indicating a measured light level. The controller processes the measuring signal received from the LED, and makes a decision on the desired light output of the LED. In the drive state, the controller controls the driver such that the average light output produced by the LED corresponds to the desired light output as determined in the measuring state. In a possible embodiment, the driver generates a nominal LED current INOM, and sets the duration (? 1) of the drive state on the basis of the desired light output of the LED as determined in the measuring state.
    Type: Application
    Filed: April 15, 2008
    Publication date: May 13, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Geert Willem Van Der Veen, Johan Wilhelmus Hermanus Kuppen, Marco Foggi