Patents by Inventor Joji Kamahara

Joji Kamahara 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).

  • Patent number: 10741131
    Abstract: A display apparatus according to the present invention, includes: a display unit configured to display an image based on display image data generated from input image data; a control unit configured to control emission brightness of a light source of the display unit; and a detecting unit configured to detect a user operation for specifying a position in the image, wherein the control unit controls the emission brightness of the light source of the display unit in accordance with a gradation value of the input image data corresponding to the position specified by the user operation, to emission brightness that is lower than set emission brightness or to emission brightness that is higher than the set emission brightness.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: August 11, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shinya Ishii, Joji Kamahara
  • Publication number: 20180336849
    Abstract: A display apparatus according to the present invention, includes: a display unit configured to display an image based on display image data generated from input image data; a control unit configured to control emission brightness of a light source of the display unit; and a detecting unit configured to detect a user operation for specifying a position in the image, wherein the control unit controls the emission brightness of the light source of the display unit in accordance with a gradation value of the input image data corresponding to the position specified by the user operation, to emission brightness that is lower than set emission brightness or to emission brightness that is higher than the set emission brightness.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 22, 2018
    Inventors: Shinya Ishii, Joji Kamahara
  • Publication number: 20170061894
    Abstract: An apparatus includes: a light-emitting unit having light-emitting areas; a display unit that modulates light from the light-emitting unit; an acquisition unit that acquires a brightness characteristic value for each divided area; a first acquisition unit that acquires information of a second dynamic range; a second acquisition unit that acquires information of a specific area; a detection unit that detects a correspondence divided area; and a control unit that performs individual control of emission brightness of each light-emitting area and correction of an input image data, so that display in a first dynamic range is performed in a non-correspondence divided area, and display in the second dynamic range is performed in the correspondence divided area.
    Type: Application
    Filed: August 23, 2016
    Publication date: March 2, 2017
    Inventors: Takeshi Ikeda, Yasuo Suzuki, Joji Kamahara
  • Patent number: 9437162
    Abstract: Disclosed is an image output apparatus that outputs a plurality of image data to one or a plurality of image display apparatuses capable of controlling amounts of light of backlights, the image output apparatus including: a determining unit configured to determine whether the plurality of image data satisfy a predetermined condition; and a controlling unit configured to control, when the determining unit determines that the plurality of image data satisfy the predetermined condition, the one or the plurality of image display apparatuses such that either or both of amounts of light and number of light emission control units of the backlights used for display of the plurality of image data are the same.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: September 6, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunsuke Ikenishi, Joji Kamahara
  • Patent number: 9299297
    Abstract: The present invention resides in an image display apparatus for displaying an image on the basis of image data; the image display apparatus comprising light emitting unit having a plurality of light sources for performing light emission that can be independently controlled respectively; setting unit which sets light emission control blocks for controlling one light source or the plurality of light sources with a common brightness; brightness determining unit which determines the light emission brightness of each of the light emission control blocks on the basis of the image data; and control unit which controls the light emission of the light emitting unit for each of the light emission control blocks in accordance with the light emission brightness determined by the determining unit; wherein the setting unit sets a size of the light emission control block of the light emitting unit depending on an amount of motion of the image.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: March 29, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshikazu Shibamiya, Chika Masuda, Atsushi Morita, Joji Kamahara
  • Publication number: 20140218416
    Abstract: A display unit displays an image. A light emission unit emits light to the display unit. A control unit controls the light emission brightness of the light emission unit. A gradation correction unit executes a gradation correction processing to the image to be displayed by the display unit based on the light emission brightness of the light emission unit.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 7, 2014
    Inventors: Yasuo Suzuki, Joji Kamahara
  • Publication number: 20140198123
    Abstract: The present invention resides in an image display apparatus for displaying an image on the basis of image data; the image display apparatus comprising light emitting unit having a plurality of light sources for performing light emission that can be independently controlled respectively; setting unit which sets light emission control blocks for controlling one light source or the plurality of light sources with a common brightness; brightness determining unit which determines the light emission brightness of each of the light emission control blocks on the basis of the image data; and control unit which controls the light emission of the light emitting unit for each of the light emission control blocks in accordance with the light emission brightness determined by the determining unit; wherein the setting unit sets a size of the light emission control block of the light emitting unit depending on an amount of motion of the image.
    Type: Application
    Filed: September 5, 2012
    Publication date: July 17, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshikazu Shibamiya, Chika Masuda, Atsushi Morita, Joji Kamahara