Patents by Inventor Sakiko NARIKAWA

Sakiko NARIKAWA 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: 10719171
    Abstract: A projection type image display device correctly detects the position of contact of an electronic pen and a finger on a manipulation surface without the provision of a touch sensor. Light containing an image is projected, illuminating light that is different from the light containing the image is projected onto a manipulation surface which at least partially overlaps an image projection surface onto which the light has been projected, and an image of the manipulation surface is captured. A first detection process detects the position at which a first object being manipulated, a distal end of which emits light, touches the manipulation surface, a second detection process detects the position at which a second object being manipulated, which does not emit light, touches the manipulation surface, and at least part of the image being displayed is changed on the basis of the detection result from either detection process.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: July 21, 2020
    Assignee: Maxell, Ltd.
    Inventors: Sakiko Narikawa, Takashi Matsubara, Naoki Mori
  • Patent number: 10514806
    Abstract: An operation detection device includes: first and second illuminations that irradiate illumination light from different positions onto an operation surface on which a user performs an operation, and a camera that captures the operation surface together with at least two fingers of a same hand of the user. First and second shadows of a same hand of the user are extracted from captured images obtained by the camera. Respective touch points of the same hand of the user on the operation surface are detected including when the first and second shadows corresponding to first and second fingers of the same hand have overlapping areas.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: December 24, 2019
    Assignee: Maxell, Ltd.
    Inventors: Takashi Matsubara, Sakiko Narikawa, Naoki Mori
  • Patent number: 10191594
    Abstract: In a projection-type video display device that displays an image by projecting the image onto a projection object starting from a desk surface, a display screen on which a position and a gesture operation of a user are reflected is displayed in a predetermined area. An illumination and a camera are disposed in the projection-type video display device installed on the desk surface, a gesture using user's fingers is detected, and, for example, a menu screen and an operation guide are displayed according to the gesture. The shadows of the fingers are photographed by the camera, and a gesture is detected. According to the gesture, the display screen is moved, rotated, divided, or enlarged/reduced, or a menu screen is displayed. The display direction is determined in consideration of the direction of sides of the desk.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: January 29, 2019
    Assignee: MAXELL, LTD.
    Inventors: Minoru Hasegawa, Mitsuo Nakajima, Takashi Matsubara, Sakiko Narikawa
  • Patent number: 10194124
    Abstract: A projection type video display device includes a video projecting unit that displays a video by projecting the video onto a video projection plane, sensors and that detect an operator who operates the projection type video display device, operation detecting units and that detect a motion of the operator based on outputs of the sensors, and a control unit that controls the video projecting unit based on a detection result of the operation detecting unit. Preferably, a sensing area in which detections by the sensors are performed when a direction of the video projection plane is vertical and is set to differ from that when the direction of the video projection plane is horizontal.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: January 29, 2019
    Assignee: MAXELL, LTD.
    Inventors: Sakiko Narikawa, Naoki Mori, Takashi Matsubara, Yoshiho Seo, Shoji Yamamoto
  • Patent number: 10152177
    Abstract: A shadow region extraction portion compares the brightness of an image captured by a camera with a threshold value and extracts first and second shadows caused by first and second light sources for a user's finger. An approach degree detection portion detects an approach degree for the finger with reference to a manipulation surface from distance d between two feature points in the first and second shadows. A contact point detection portion detects contact point P for the finger with reference to the manipulation surface from positions of the two feature points. A direction detection portion detects a direction pointed by the finger from directions of contours corresponding to the first and second shadows. A display control portion generates display control data for a manipulation target apparatus based on detection result data.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: December 11, 2018
    Assignee: MAXELL, LTD.
    Inventors: Sakiko Narikawa, Takashi Matsubara, Naoki Mori
  • Publication number: 20180292950
    Abstract: A projection type image display device correctly detects the position of contact of an electronic pen and a finger on a manipulation surface without the provision of a touch sensor. Light containing an image is projected, illuminating light that is different from the light containing the image is projected onto a manipulation surface which at least partially overlaps an image projection surface onto which the light has been projected, and an image of the manipulation surface is captured. A first detection process detects the position at which a first object being manipulated, a distal end of which emits light, touches the manipulation surface, a second detection process detects the position at which a second object being manipulated, which does not emit light, touches the manipulation surface, and at least part of the image being displayed is changed on the basis of the detection result from either detection process.
    Type: Application
    Filed: June 15, 2018
    Publication date: October 11, 2018
    Inventors: Sakiko NARIKAWA, Takashi MATSUBARA, Naoki MORI
  • Patent number: 10025430
    Abstract: A projection type image display device correctly detects the position of contact of an electronic pen and a finger on a manipulation surface without the provision of a touch sensor. Light containing an image is projected, illuminating light that is different from the light containing the image is projected onto a manipulation surface which at least partially overlaps an image projection surface onto which the light has been projected, and an image of the manipulation surface is captured. A first detection process detects the position at which a first object being manipulated, a distal end of which emits light, touches the manipulation surface, a second detection process detects the position at which a second object being manipulated, which does not emit light, touches the manipulation surface, and at least part of the image being displayed is changed on the basis of the detection result from either detection process.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: July 17, 2018
    Assignee: Maxell, Ltd.
    Inventors: Sakiko Narikawa, Takashi Matsubara, Naoki Mori
  • Publication number: 20180164951
    Abstract: In a projection-type video display device that displays an image by projecting the image onto a projection object starting from a desk surface, a display screen on which a position and a gesture operation of a user are reflected is displayed in a predetermined area. An illumination and a camera are disposed in the projection-type video display device installed on the desk surface, a gesture using user's fingers is detected, and, for example, a menu screen and an operation guide are displayed according to the gesture. The shadows of the fingers are photographed by the camera, and a gesture is detected. According to the gesture, the display screen is moved, rotated, divided, or enlarged/reduced, or a menu screen is displayed. The display direction is determined in consideration of the direction of sides of the desk.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 14, 2018
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Minoru HASEGAWA, Mitsuo NAKAJIMA, Takashi MATSUBARA, Sakiko NARIKAWA
  • Patent number: 9927923
    Abstract: In a projection-type video display device that displays an image by projecting the image onto a projection object starting from a desk surface, a display screen on which a position and a gesture operation of a user are reflected is displayed in a predetermined area. An illumination and a camera are disposed in the projection-type video display device installed on the desk surface, a gesture using user's fingers is detected, and, for example, a menu screen and an operation guide are displayed according to the gesture. The shadows of the fingers are photographed by the camera, and a gesture is detected. According to the gesture, the display screen is moved, rotated, divided, or enlarged/reduced, or a menu screen is displayed. The display direction is determined in consideration of the direction of sides of the desk.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: March 27, 2018
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Minoru Hasegawa, Mitsuo Nakajima, Takashi Matsubara, Sakiko Narikawa
  • Publication number: 20170214862
    Abstract: A projection video display device 1 includes a signal input unit 120 that receives a plurality of video signals, a projection unit 115 that projects a video to be displayed on a projection plane, an imaging unit 100 that images one or more operators who operate the projection plane, operation detection units 104 to 109 that detect an operation of the operator from the captured image of the imaging unit, and a control unit 110 that controls display of the video to be projected through the projection unit. The control unit selects the video signal to be projected and displayed through the projection unit among the video signals input to the signal input unit based on a detection result of the operation detection unit.
    Type: Application
    Filed: August 7, 2014
    Publication date: July 27, 2017
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Takashi MATSUBARA, Sakiko NARIKAWA, Naoki MORI, Minoru HASEGAWA
  • Publication number: 20160309127
    Abstract: A projection type video display device includes a video projecting unit that displays a video by projecting the video onto a video projection plane, sensors and that detect an operator who operates the projection type video display device, operation detecting units and that detect a motion of the operator based on outputs of the sensors, and a control unit that controls the video projecting unit based on a detection result of the operation detecting unit. Preferably, a sensing area in which detections by the sensors are performed when a direction of the video projection plane is vertical and is set to differ from that when the direction of the video projection plane is horizontal.
    Type: Application
    Filed: December 19, 2013
    Publication date: October 20, 2016
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Sakiko NARIKAWA, Naoki MORI, Takashi MATSUBARA, Yoshiho SEO, Shoji YAMAMOTO
  • Publication number: 20160274733
    Abstract: In a projection-type video display device that displays an image by projecting the image onto a projection object starting from a desk surface, a display screen on which a position and a gesture operation of a user are reflected is displayed in a predetermined area. An illumination and a camera are disposed in the projection-type video display device installed on the desk surface, a gesture using user's fingers is detected, and, for example, a menu screen and an operation guide are displayed according to the gesture. The shadows of the fingers are photographed by the camera, and a gesture is detected. According to the gesture, the display screen is moved, rotated, divided, or enlarged/reduced, or a menu screen is displayed. The display direction is determined in consideration of the direction of sides of the desk.
    Type: Application
    Filed: November 19, 2013
    Publication date: September 22, 2016
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Minoru HASEGAWA, Mitsuo NAKAJIMA, Takashi MATSUBARA, Sakiko NARIKAWA
  • Publication number: 20160266722
    Abstract: An operation detection device includes: first and second illuminations that irradiate illumination light from different positions onto an operation surface on which a user performs an operation; a camera that captures the operation surface together with an operation part (finger) of the user; a shadow region extraction unit that extracts first and second shadows of the operation part of the user from a captured image obtained by the camera; a contour detection unit that detects contours of each of the first and second shadows extracted; and a touch point detection unit that detects a touch point of the operation part of the user on the operation surface from the distance between the contours.
    Type: Application
    Filed: May 23, 2016
    Publication date: September 15, 2016
    Inventors: Takashi MATSUBARA, Sakiko NARIKAWA, Naoki MORI
  • Publication number: 20160253043
    Abstract: A projection type image display device correctly detects the position of contact of an electronic pen and a finger on a manipulation surface without the provision of a touch sensor. Light containing an image is projected, illuminating light that is different from the light containing the image is projected onto a manipulation surface which at least partially overlaps an image projection surface onto which the light has been projected, and an image of the manipulation surface is captured. A first detection process detects the position at which a first object being manipulated, a distal end of which emits light, touches the manipulation surface, a second detection process detects the position at which a second object being manipulated, which does not emit light, touches the manipulation surface, and at least part of the image being displayed is changed on the basis of the detection result from either detection process.
    Type: Application
    Filed: October 8, 2013
    Publication date: September 1, 2016
    Inventors: Sakiko NARIKAWA, Takashi MATSUBARA, Naoki MORI
  • Patent number: 9367176
    Abstract: An operation detection device includes: first and second illuminations that irradiate illumination light from different positions onto an operation surface on which a user performs an operation; a camera that captures the operation surface together with an operation part (finger) of the user; a shadow region extraction unit that extracts first and second shadows of the operation part of the user from a captured image obtained by the camera; a contour detection unit that detects contours of each of the first and second shadows extracted; and a touch point detection unit that detects a touch point of the operation part of the user on the operation surface from the distance between the contours.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: June 14, 2016
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Takashi Matsubara, Sakiko Narikawa, Naoki Mori
  • Publication number: 20140253512
    Abstract: A shadow region extraction portion compares the brightness of an image captured by a camera with a threshold value and extracts first and second shadows caused by first and second light sources for a user's finger. An approach degree detection portion detects an approach degree for the finger with reference to a manipulation surface from distance d between two feature points in the first and second shadows. A contact point detection portion detects contact point P for the finger with reference to the manipulation surface from positions of the two feature points. A direction detection portion detects a direction pointed by the finger from directions of contours corresponding to the first and second shadows. A display control portion generates display control data for a manipulation target apparatus based on detection result data.
    Type: Application
    Filed: February 4, 2014
    Publication date: September 11, 2014
    Applicant: Hitachi Maxell, Ltd.
    Inventors: Sakiko NARIKAWA, Takashi MATSUBARA, Naoki MORI
  • Publication number: 20140253513
    Abstract: An operation detection device includes: first and second illuminations that irradiate illumination light from different positions onto an operation surface on which a user performs an operation; a camera that captures the operation surface together with an operation part (finger) of the user; a shadow region extraction unit that extracts first and second shadows of the operation part of the user from a captured image obtained by the camera; a contour detection unit that detects contours of each of the first and second shadows extracted; and a touch point detection unit that detects a touch point of the operation part of the user on the operation surface from the distance between the contours.
    Type: Application
    Filed: February 24, 2014
    Publication date: September 11, 2014
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Takashi MATSUBARA, Sakiko NARIKAWA, Naoki MORI