Patents by Inventor Jeff Wuopio

Jeff Wuopio 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 for eliminating pi-cell artifacts
    Patent number: 7502003
    Abstract: An alternating unipolar carrier waveform is used to drive a pi-cell modulator. The pi-cell is driven by the carrier, but the carrier never changes polarity within the time period that the cell is energized. However, each time the cell is energized, i.e., once per field, the polarity alternates. Further, a burst of pulses each separated by a short rest period is used on initial application of power to more quickly drive the pi-cell to its activated state.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: March 10, 2009
    Assignee: REAL D
    Inventors: Lenny Lipton, Jeffrey J. Halnon, Jeff Wuopio, Bruce Dorworth
  • Method for eliminating pi-cell artifacts
    Publication number: 20020003509
    Abstract: An alternating unipolar carrier waveform is used to drive a pi-cell modulator. The pi-cell is driven by the carrier, but the carrier never changes polarity within the time period that the cell is energized. However, each time the cell is energized, i.e., once per field, the polarity alternates.
    Type: Application
    Filed: January 19, 2001
    Publication date: January 10, 2002
    Inventors: Lenny Lipton, Jeffrey J. Halnon, Jeff Wuopio, Bruce Dorworth