Patents by Inventor Richard Pfaller

Richard Pfaller 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).

  • Detector circuit and method for actuating a fluorescent lamp
    Patent number: 8754582
    Abstract: A detector circuit for actuating at least one fluorescent lamp may be configured such that the actuation of at least one fluorescent lamp occurs as a function of a first signal at a first input and as a function of a second signal at a second input if the first signal and the second signal are each greater than a first prescribed voltage and less than a second prescribed voltage during a start-up phase.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: June 17, 2014
    Assignee: Osram Gesellschaft mit beschraenkter Haftung
    Inventors: Juergen Klier, Richard Pfaller
  • Detector circuit and method for controlling a fluorescent lamp
    Patent number: 8736188
    Abstract: A detector circuit for controlling at least one fluorescent lamp is provided, wherein the detector circuit is configured such that an inactive fluorescent lamp can be detected if a first signal is present at least one of a first input and a second signal is present at a second input in a detection interval after a start-up phase.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: May 27, 2014
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Juergen Klier, Richard Pfaller
  • Detector circuit and method for controlling a fluorescent lamp
    Publication number: 20120019146
    Abstract: A detector circuit for controlling at least one fluorescent lamp is provided, wherein the detector circuit is configured such that an inactive fluorescent lamp can be detected if a first signal is present at least one of a first input and a second signal is present at a second input in a detection interval after a start-up phase.
    Type: Application
    Filed: November 13, 2009
    Publication date: January 26, 2012
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
    Inventors: Juergen Klier, Richard Pfaller
  • DETECTOR CIRCUIT AND METHOD FOR ACTUATING A FLUORESCENT LAMP
    Publication number: 20110273096
    Abstract: A detector circuit for actuating at least one fluorescent lamp may be configured such that the actuation of at least one fluorescent lamp occurs as a function of a first signal at a first input and as a function of a second signal at a second input if the first signal and the second signal are each greater than a first prescribed voltage and less than a second prescribed voltage during a start-up phase.
    Type: Application
    Filed: November 13, 2009
    Publication date: November 10, 2011
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
    Inventors: Juergen Klier, Richard Pfaller