Patents by Inventor Alessandro Fasan

Alessandro Fasan 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).

  • Method and apparatus for driving an electroluminescent lamp
    Patent number: 5977720
    Abstract: An electroluminescent lamp is driven by a driving circuit that can supply an approximately sinusoidal signal, a bi-directional sawtooth signal or a single-ended sawtooth signal. Switches selectively transfer energy from a battery to an inductor and then from the inductor to the lamp. In one embodiment, the lamp voltage is compared to a reference waveform, such as a sinusoid. The switches are activated responsive to the error between the lamp voltage and reference waveform to minimize the error. The lamp can thus be driven with a closer approximation of the reference waveform.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: November 2, 1999
    Assignee: STMicroelectronics, Inc.
    Inventors: Ermanno Pace, Giorgio Mariani, Alessandro Fasan
  • Electroluminescent lamp driver circuit with signal tracking
    Patent number: 5854539
    Abstract: An electroluminescent lamp is driven by a driving circuit that can supply an approximately sinusoidal signal, a bi-directional sawtooth signal or a single-ended sawtooth signal. Switches selectively transfer energy from a battery to an inductor and then from the inductor to the lamp. In one embodiment, the lamp voltage is compared to a reference waveform, such as a sinusoid. The switches are activated responsive to the error between the lamp voltage and reference waveform to minimize the error. The lamp can thus be driven with a closer approximation of the reference waveform.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: December 29, 1998
    Assignee: StMicroelectronics, Inc.
    Inventors: Ermanno Pace, Giorgio Mariani, Alessandro Fasan