Patents by Inventor Sachio Kitamura

Sachio Kitamura 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).

  • Liquid crystal display apparatus and alternating current driving method therefore
    Patent number: 7764258
    Abstract: A liquid crystal display apparatus includes synchronization signal extracting means for extracting a vertical synchronization signal from a noninterlace signal, first reversal signal generating means for generating a first polarity reversal signal that causes reversal of polarity of a signal voltage every frame for a switching device associated with each of pixels according to the vertical synchronization signal, reversal control signal generating means for generating a reversal control signal according to a result of comparison between frames of the noninterlace signal, second reversal signal generating means for generating a second polarity reversal signal by reversing polarity of the first polarity reversal signal according to the reversal control signal, and switching device driving means for driving each of switching devices according to the second polarity reversal signal.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: July 27, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Sachio Kitamura, Yukio Ijima
  • Liquid crystal display apparatus and alternating current driving method therefore
    Publication number: 20050237287
    Abstract: A liquid crystal display apparatus includes synchronization signal extracting means for extracting a vertical synchronization signal from a noninterlace signal, first reversal signal generating means for generating a first polarity reversal signal that causes reversal of polarity of a signal voltage every frame for a switching device associated with each of pixels according to the vertical synchronization signal, reversal control signal generating means for generating a reversal control signal according to a result of comparison between frames of the noninterlace signal, second reversal signal generating means for generating a second polarity reversal signal by reversing polarity of the first polarity reversal signal according to the reversal control signal, and switching device driving means for driving each of switching devices according to the second polarity reversal signal.
    Type: Application
    Filed: April 19, 2005
    Publication date: October 27, 2005
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Sachio Kitamura, Yukio Ijima