Patents by Inventor Tomohiko Yabui

Tomohiko Yabui 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: 11875078
    Abstract: A display system that smoothly switches input from one input device to input from another input device when a plurality of display devices include respective input devices. The display system includes a first display device and a second display device. The first display device includes a first display unit, a first controller, and a first input device. The second display device includes a second display unit, a second controller, and a second input device. The first display unit displays a first image outputted from at least one first computer. The second display unit displays a second image outputted from at least one second computer. The first controller receives input of first information outputted from the first input device for operating the first and second computers. The second controller receives input of second information outputted from the second input device for operating the second computer.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: January 16, 2024
    Assignee: EIZO CORPORATION
    Inventors: Tomohiko Yabui, Hideki Kitayama, Kiyoyuki Tanaka
  • Publication number: 20220326900
    Abstract: A display system that smoothly switches input from one input device to input from another input device when a plurality of display devices include respective input devices. The display system includes a first display device and a second display device. The first display device includes a first display unit, a first controller, and a first input device. The second display device includes a second display unit, a second controller, and a second input device. The first display unit displays a first image outputted from at least one first computer. The second display unit displays a second image outputted from at least one second computer. The first controller receives input of first information outputted from the first input device for operating the first and second computers. The second controller receives input of second information outputted from the second input device for operating the second computer.
    Type: Application
    Filed: November 27, 2019
    Publication date: October 13, 2022
    Applicant: EIZO Corporation
    Inventors: Tomohiko YABUI, Hideki KITAYAMA, Kiyoyuki TANAKA
  • Patent number: 9001194
    Abstract: A luminance correction computation unit 23 corrects a luminance input signal LI, which is inputted into a first luminance adjustment portion 13, to LO based on the semi-transparent mirror luminance correction coefficient b, and the luminance correction computation unit 23 corrects a luminance input signal LI, which is inputted into a second luminance adjustment portion 13, to LO based on the semi-transparent mirror luminance correction coefficient b. As a result, an image of the first image display portion 3, which is reflected by a semi-transparent mirror, and an image of the second image display portion, which is allowed to transmit through the semi-transparent mirror, are corrected in order to cancel a luminance difference according to an optical characteristic of the semi-transparent mirror.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: April 7, 2015
    Assignee: Eizo Corporation
    Inventors: Tomohiko Yabui, Hideki Kitayama, Akinori Hayashi, Katsuhiko Matsunami, Naoshi Isobe
  • Patent number: 8360581
    Abstract: This invention provides a stereoscopic image display system that allows a plurality of experiencing persons to visually recognize stereoscopic images by their naked eyes at one time. In correspondence with a distance between eyes of an experiencing person, a plurality of projectors and a plurality of half mirrors are arranged around a periphery of a retroreflective sheet placed horizontally. The respective projectors receive parallax images of an object as a display target which are taken along a circumferential direction of the object. Image light beams (left and right parallax images) emitted from the adjacent two projectors are reflected from the half mirrors and then enter the retroreflective sheet. The two incident image light beams are reflected from the retroreflective sheet in directions of incidence thereof, respectively. The two reflected light beams pass through the half mirrors and then separately enter the right and left eyes of the experiencing person.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: January 29, 2013
    Assignee: Eizo Nanao Corporation
    Inventors: Tomohiko Yabui, Hiroshi Ito
  • Publication number: 20120050505
    Abstract: A luminance correction computation unit 23 corrects a luminance input signal LI, which is inputted into a first luminance adjustment portion 13, to LO based on the semi-transparent mirror luminance correction coefficient b, and the luminance correction computation unit 23 corrects a luminance input signal LI, which is inputted into a second luminance adjustment portion 13, to LO based on the semi-transparent mirror luminance correction coefficient b. As a result, an image of the first image display portion 3, which is reflected by a semi-transparent mirror, and an image of the second image display portion, which is allowed to transmit through the semi-transparent mirror, are corrected in order to cancel a luminance difference according to an optical characteristic of the semi-transparent mirror. As a result, it is possible to suppress the luminance difference of the stereo image. Therefore, it is possible to suppress uncomfortable feeling of the stereo image caused by the semi-transparent mirror.
    Type: Application
    Filed: March 5, 2010
    Publication date: March 1, 2012
    Inventors: Tomohiko Yabui, Hideki Kitayama, Akinori Hayashi, Katsuhiko Matsunami, Naoshi Isobe
  • Publication number: 20090290126
    Abstract: This invention provides a stereoscopic image display system that allows a plurality of experiencing persons to visually recognize stereoscopic images by their naked eyes at one time. In correspondence with a distance between eyes of an experiencing person, a plurality of projectors and a plurality of half mirrors are arranged around a periphery of a retroreflective sheet placed horizontally. The respective projectors receive parallax images of an object as a display target which are taken along a circumferential direction of the object. Image light beams (left and right parallax images) emitted from the adjacent two projectors are reflected from the half mirrors and then enter the retroreflective sheet. The two incident image light beams are reflected from the retroreflective sheet in directions of incidence thereof, respectively. The two reflected light beams pass through the half mirrors and then separately enter the right and left eyes of the experiencing person.
    Type: Application
    Filed: May 18, 2009
    Publication date: November 26, 2009
    Inventors: Tomohiko Yabui, Hiroshi Ito