Patents by Inventor Katsuhiro Kanauchu

Katsuhiro Kanauchu 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).

  • Apparatus and method for controlling display brightness in an image display device
    Patent number: 8004612
    Abstract: An inputted picture signal is stored in an image memory into which a picture signal for at least one frame period can be written, while rewriting the memory. At a plurality of timings within one frame period, an average brightness calculation unit calculates an average brightness from the picture signal written into the image memory, and a brightness control unit performs brightness control of the picture signal read from the image memory based on the calculated average brightness.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: August 23, 2011
    Assignee: Tohoku Pioneer Corporation
    Inventors: Katsuhiro Kanauchu, Shuichi Seki
  • Apparatus and method for displaying and controlling picture signal
    Publication number: 20070115215
    Abstract: An inputted picture signal is stored in an image memory 1 into which a picture signal for at least one frame period can be written, while rewriting thememory. At a plurality of timings within one frame period, an average brightness calculation means 2 calculates an average brightness from the picture signal written into the image memory 1, and a brightness control means 3 performs brightness control of the picture signal read from the image memory 1 based on the calculated said average brightness.
    Type: Application
    Filed: November 21, 2006
    Publication date: May 24, 2007
    Applicant: TOHOKU PIONEER CORPORATION
    Inventors: Katsuhiro Kanauchu, Shuichi Seki