Patents by Inventor Masahiko Akutsu

Masahiko Akutsu 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 device, signal processing unit for use in liquid crystal display device, program and storage medium thereof, and liquid crystal display control method
    Patent number: 7605787
    Abstract: When receiving an interlaced video signal, an I/P conversion section converts the interlaced video signal into a progressive video signal by any of two or more I/P conversion methods. Further, an emphasis conversion section subjects the progressive video signal to emphasis conversion. Here, a control CPU controls the degree of emphasis conversion performed by the emphasis conversion section so as to be changed in accordance with which kind of conversion method among the two or more conversion methods is used for the conversion. This makes it possible to subject video data supplied to a liquid crystal display panel to emphasis conversion with a degree corresponding to the conversion method. As a result of this, it is possible to implement a liquid crystal display device which can realize both improvement in response speed of a liquid crystal display device and improvement in quality of video image displayed on the liquid crystal display device.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: October 20, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahiko Akutsu, Toshiyuki Fujine, Takashi Yoshii
  • Liquid crystal display device, signal processing unit for use in liquid crystal display device, program and storage medium thereof, and liquid crystal display control method
    Publication number: 20070164946
    Abstract: When receiving an interlaced video signal, an I/P conversion section converts the interlaced video signal into a progressive video signal by any of two or more I/P conversion methods. Further, an emphasis conversion section subjects the progressive video signal to emphasis conversion. Here, a control CPU controls the degree of emphasis conversion performed by the emphasis conversion section so as to be changed in accordance with which kind of conversion method among the two or more conversion methods is used for the conversion. This makes it possible to subject video data supplied to a liquid crystal display panel to emphasis conversion with a degree corresponding to the conversion method. As a result of this, it is possible to implement a liquid crystal display device which can realize both improvement in response speed of a liquid crystal display device and improvement in quality of video image displayed on the liquid crystal display device.
    Type: Application
    Filed: September 9, 2004
    Publication date: July 19, 2007
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masahiko Akutsu, Toshiyuki Fujine, Takashi Yoshii