Patents by Inventor Tomohiko Itoyama

Tomohiko Itoyama 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).

  • Publication number: 20100091033
    Abstract: An image processing apparatus capable of achieving compatibility between extension of a viewing angle characteristic and an improvement in motion picture response while reducing a sense of flicker in an image display having a sub-pixel configuration is provided. The image processing apparatus includes: a detection means for detecting a motion index and/or an edge index of an input picture for each pixel; a frame division means for dividing a unit frame period of the input picture into a plurality of sub-frame periods; and a gray-scale conversion means for selectively performing adaptive gray-scale conversion on luminance in a pixel where a motion index and/or an edge index larger than a predetermined threshold value is detected so that, while allowing the time integral value of the luminance signal within the unit frame period to be maintained as it is, a high luminance period and a low luminance period are allocated to sub-frame periods in the unit frame period, respectively.
    Type: Application
    Filed: March 12, 2008
    Publication date: April 15, 2010
    Applicant: Sony Corporation
    Inventors: Tomohiko Itoyama, Toshio Sarugaku, Hiroshi Sugisawa, Tomoya Yano
  • Publication number: 20090102771
    Abstract: An image processing apparatus includes: a detection means for detecting a motion index of an input picture; a generation means for generating a mask signal for a fluctuation pixel region due to a line flicker component; a mask processing means for performing a mask process on the motion index through the use of the mask signal; a frame division means; and a gray-scale conversion means for selectively performing, on the basis of the motion index subjected to the mask process, adaptive gray-scale conversion on a luminance signal in a pixel region where a motion index is larger than a predetermined threshold value so that, while maintaining total time integral value of the luminance signal in the unit frame period as it is, a high luminance period and a low luminance period are allocated to sub-frame periods in the unit frame period, respectively.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 23, 2009
    Applicant: Sony Corporation
    Inventors: Hiroshi Sugisawa, Toshio Sarugaku, Tomohiko Itoyama