Patents by Inventor Hiroaki Ichimura

Hiroaki Ichimura 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: 20160247475
    Abstract: An electro-optical device includes data lines, scanning lines, pixels including a first pixel, a second pixel, a third pixel, and a fourth pixel disposed to correspond to intersections of the data lines and scanning lines, and an image signal generation unit that generates a first image signal for the first pixel based on a first image data, a first amount data and a first correction data, a second image signal for the second pixel based on a second image data, a second amount data and the first correction data, a third image signal for the third pixel based on a third image data, a third amount data and a second correction data, and a fourth image signal for the fourth pixel based on a fourth image data, a fourth amount data and the second correction data.
    Type: Application
    Filed: May 3, 2016
    Publication date: August 25, 2016
    Inventors: Junichi Wakabayashi, Hidehito Iisaka, Hiroaki Ichimura
  • Patent number: 9355605
    Abstract: Vertical cross-talk is reduced. A correction circuit includes a correction amount calculation unit that calculates a correction amount on the basis of input image data Din and that generates correction amount data U; a correction coefficient generation unit that generates correction coefficient data C which represents a correction coefficient decided upon in accordance with a position in a horizontal scanning direction of a data line to which input image data Din to be corrected is supplied; and a correction unit that corrects the input image data Din on the basis of the correction amount data U and the correction coefficient data C and thereby generates correction image data Dh.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: May 31, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Junichi Wakabayashi, Hidehito Iisaka, Hiroaki Ichimura
  • Publication number: 20140267213
    Abstract: Vertical cross-talk is reduced. A correction circuit includes a correction amount calculation unit that calculates a correction amount on the basis of input image data Din and that generates correction amount data U; a correction coefficient generation unit that generates correction coefficient data C which represents a correction coefficient decided upon in accordance with a position in a horizontal scanning direction of a data line to which input image data Din to be corrected is supplied; and a correction unit that corrects the input image data Din on the basis of the correction amount data U and the correction coefficient data C and thereby generates correction image data Dh.
    Type: Application
    Filed: March 3, 2014
    Publication date: September 18, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Junichi Wakabayashi, Hidehito Iisaka, Hiroaki Ichimura
  • Publication number: 20140267452
    Abstract: A signal generation circuit of an electro-optical device includes a generation unit that generates correction data corresponding to each pixel circuit based on input image data, a specification unit that, when a value which denotes a difference of two pieces of correction data corresponding to two pixel circuits adjacent to each other is equal to or greater than a predetermined threshold, specifies the two pixel circuits as boundary pixel circuits, an updating unit that generates updated correction data by modifying each value of a predetermined number of pieces of correction data corresponding to a predetermined number of pixel circuits including at least one of the boundary pixel circuits so as to be a value between two values indicated by the two pieces of correction data corresponding to the boundary pixel circuits.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 18, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Junichi Wakabayashi, Hiroyuki Hosaka, Hiroaki Ichimura