Patents by Inventor Yohei Ishimaru

Yohei Ishimaru 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).

  • Display control device with frame rate control
    Patent number: 8228354
    Abstract: A display control device uses frame rate control, and converts m-bit input data (m is an integer) representing brightness of each pixel, to n-bit output data (n is an integer, n<m), to control brightness of each pixel. A first frame rate controller generates a plurality of first tone data according to the input data, and outputs the generated data in a time division manner for each predetermined first timing. A second frame rate controller generates a plurality of second tone data according to the input data, and outputs the generated data in a time division manner for each predetermined first timing. Rate of change of brightness represented by the first tone data with respect to the input data, and rate of change of brightness represented by the second tone data with respect to the input data are made different.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: July 24, 2012
    Assignee: Rohm Co., Ltd.
    Inventors: Tetsuya Yoshida, Atsushi Murayama, Toshio Nishimura, Yohei Ishimaru
  • DISPLAY CONTROL DEVICE WITH FRAME RATE CONTROL
    Publication number: 20100309235
    Abstract: A display control device uses frame rate control, and converts m-bit input data (m is an integer) representing brightness of each pixel, to n-bit output data (n is an integer, n<m), to control brightness of each pixel. A first frame rate controller generates a plurality of first tone data according to the input data, and outputs the generated data in a time division manner for each predetermined first timing. A second frame rate controller generates a plurality of second tone data according to the input data, and outputs the generated data in a time division manner for each predetermined first timing. Rate of change of brightness represented by the first tone data with respect to the input data, and rate of change of brightness represented by the second tone data with respect to the input data are made different.
    Type: Application
    Filed: December 27, 2007
    Publication date: December 9, 2010
    Applicant: ROHM CO., LTD.
    Inventors: Tetsuya Yoshida, Atsushi Murayama, Toshio Nishimura, Yohei Ishimaru