Patents by Inventor Kazuyuki Arita

Kazuyuki Arita 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).

  • Color signal correction circuit, color signal correction apparatus, color signal correction method, color signal correction program, and display apparatus
    Patent number: 6778184
    Abstract: A color signal correction circuit for correcting a color signal which displays data on each pixel of a display apparatus, comprising: a color signal input section for inputting a color signal of N bits (N is a natural number); an addition section for adding second and third color signals corresponding to first and second adjacent pixels which are adjacent to the predetermined pixel to obtain addition value data; a first comparison section for subtracting duplicated color signal data, which is obtained by duplicating a first color signal corresponding to the predetermined pixel, from the addition value data to obtain a difference value; a LSB determination section for determining an LSB according to the difference value; and a color signal generation section for adding N higher order bits of the duplicated color signal data and the LSB, so as to generate a color signal of (N+1) bits.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: August 17, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuyuki Arita, Toshiya Aoki
  • Color signal correction circuit, color signal correction apparatus, color signal correction method, color signal correction program, and display apparatus
    Publication number: 20030020681
    Abstract: A color signal correction circuit for correcting a color signal which displays data on each pixel of a display apparatus, comprising: a color signal input section for inputting a color signal of N bits (N is a natural number); an addition section for adding second and third color signals corresponding to first and second adjacent pixels which are adjacent to the predetermined pixel to obtain addition value data; a first comparison section for subtracting duplicated color signal data, which is obtained by duplicating a first color signal corresponding to the predetermined pixel, from the addition value data to obtain a difference value; a LSB determination section for determining an LSB according to the difference value; and a color signal generation section for adding N higher order bits of the duplicated color signal data and the LSB, so as to generate a color signal of (N+1) bits.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 30, 2003
    Inventors: Kazuyuki Arita, Toshiya Aoki