Patents by Inventor Motohiro Makiguchi
Motohiro Makiguchi 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).
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Patent number: 11885984Abstract: A housing including a first viewing direction and a second viewing direction opposite to the first viewing direction, a first display unit disposed to be spaced from a top surface on a side of one end of the housing at a first interval with a display surface facing the housing, a second display unit disposed on a side of the other end of the housing, a first optical element configured to transmit a portion of light emitted from the first display unit and reflect a portion of the light, a second optical element configured to transmit a portion of light emitted from the second display unit and reflect a portion of the light, and a third optical element configured to transmit a portion of the light emitted from the first display unit and the second display unit and reflect a portion of the light.Type: GrantFiled: April 11, 2019Date of Patent: January 30, 2024Assignee: Nippon Telegraph and Telephone CorporationInventors: Motohiro Makiguchi, Hideaki Takada
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Patent number: 11843763Abstract: Provided is a display method that prevents degradation of image quality due to ghosting. The display method performed with a display apparatus includes a viewpoint position detection step (S1) for detecting a viewpoint position d that is an interval between a reflection screen and a viewer ?, a diffusion property control step (S2) for controlling a diffusion property of the reflection screen 40 in accordance with the viewpoint position d, and a projection step for projecting multiple viewpoint video images having disparity from multiple projectors to the reflection screen. The diffusion property control step (S2) includes controlling the diffusion property of the reflection screen 40 by varying a voltage or a duty cycle of an ac signal that is applied to a diffuser layer included in the reflection screen.Type: GrantFiled: May 14, 2019Date of Patent: December 12, 2023Assignee: Nippon Telegraph and Telephone CorporationInventors: Motohiro Makiguchi, Hideaki Takada
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Publication number: 20230334802Abstract: There is provided a line-of-sight reproduction system including a pseudo eyeball model generation device 10 and a display device 20, in which the pseudo eyeball model generation device 10 generates a pseudo eyeball model 30 representing a pseudo eyeball with virtual eyeball information indicating a virtual eyeball 31 and pseudo pupil information obtained by moving a position of a pseudo pupil 32 from a surface of the virtual eyeball 31 to a side of an observer in association with a degree of gaze avoidance of deviating an eye line from a viewpoint 40 of the observer, and the display device 20 renders a pseudo eyeball image representing the pseudo eyeball based on the pseudo eyeball model 30, and then renders a display image of another display element.Type: ApplicationFiled: July 29, 2020Publication date: October 19, 2023Inventors: Motohiro Makiguchi, Masanori YOKOYAMA, Kimitaka TSUTSUMI, Takashi SATO
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Publication number: 20230274485Abstract: There is provided a line-of-sight tracking system including a pseudo eyeball model generation device 10 and a display device 20, in which the pseudo eyeball model generation device 10 generates a pseudo eyeball model representing a pseudo eyeball with pseudo pupil information and virtual eyeball information indicating a virtual eyeball when a type of line-of-sight tracking is one of with tracking, excessive tracking, weak tracking, and no tracking, the pseudo pupil information being obtained by moving a position of a pseudo pupil back and forth when viewed from an observer with reference to a center of the virtual eyeball in association with the type of the line-of sight tracking and an intensity of the line-of-sight tracking, and the display device 20 displays the pseudo eyeball which is different according to a viewpoint position of the observer based on the pseudo eyeball model.Type: ApplicationFiled: July 29, 2020Publication date: August 31, 2023Inventors: Motohiro Makiguchi, Masanori YOKOYAMA, Kimitaka TSUTSUMI, Takashi SATO
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Patent number: 11706402Abstract: Provided is an image generation technology capable of suppressing unpleasantness associated with fluctuation in image quality caused by the viewer's viewpoint movement.Type: GrantFiled: May 31, 2019Date of Patent: July 18, 2023Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Motohiro Makiguchi, Hideaki Takada
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Publication number: 20230161174Abstract: A floating image display apparatus of the present embodiment includes: a first display unit (11) that is installed to have a display surface facing toward a ground; a first optical element (21) that is installed to be inclined with respect to the ground, and transmits a part of light emitted from the first display unit (11) and reflects a part of the light; a second display unit (12) that is installed to have a display surface perpendicular to the ground; and a second optical element (22) that is installed to be perpendicular to the ground, and transmits a part of light emitted from the second display unit (12) and reflects a part of the light.Type: ApplicationFiled: April 21, 2020Publication date: May 25, 2023Inventors: Motohiro MAKIGUCHI, Hideaki TAKADA, Takashi SATO
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Patent number: 11652979Abstract: A stereoscopic image display system includes: a plurality of projectors arranged side by side with predetermined spacing and project respectively viewpoint images for installation positions in the same direction, the viewpoint images being related to the same object; a screen displaying a superimposed image for the object, based on two adjacent images, among the projected images, that are the closest from a line-of-sight direction of an observer; and an image holding unit holding information about a first viewpoint image to which pattern information for shifting a phase corresponding to a predetermined period is added and information about a second viewpoint image from which the pattern information is subtracted, which are generated from each of a plurality of base images as the viewpoint images to be respectively projected by the plurality of projectors. Each projector projects the first and second viewpoint images related to preceding and succeeding stages onto the screen.Type: GrantFiled: May 23, 2019Date of Patent: May 16, 2023Assignee: Nippon Telegraph and Telephone CorporationInventors: Motohiro Makiguchi, Hideaki Takada
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Publication number: 20230088450Abstract: A tactile stimulation presentation device 1 includes a measurement unit 11 configured to measure a first physical quantity with respect to a tactile sensation applied to a first region of a human body, a control unit 12 configured to convert the first physical quantity into a second physical quantity of a different type from the first physical quantity, and a presentation unit 13 configured to apply the second physical quantity to a second region different from the first region.Type: ApplicationFiled: February 10, 2020Publication date: March 23, 2023Inventors: Arinobu NIIJIMA, Toki TAKEDA, Motohiro Makiguchi, Takafumi MUKOUCHI, Takashi SATO
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Publication number: 20220256136Abstract: A stereoscopic image display system (1) includes: a plurality of projectors (20-0 to 20-16) that are arranged side by side with predetermined spacing and project respectively viewpoint images for installation positions in the same direction, the viewpoint images being related to the same object; a screen (10) that displays a superimposed image for the object to be stereoscopically viewed, based on the two adjacent images, among the images respectively projected by the plurality of projectors, that are the closest from a line-of-sight direction of an observer; and an image holding unit that holds information about a first viewpoint image to which pattern information for shifting a phase corresponding to a predetermined period is added and information about a second viewpoint image from which the pattern information is subtracted, which are generated from each of a plurality of base images as the viewpoint images to be respectively projected by the plurality of projectors.Type: ApplicationFiled: May 23, 2019Publication date: August 11, 2022Inventors: Motohiro Makiguchi, Hideaki Takada
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Publication number: 20220239894Abstract: Provided is an image generation technology capable of suppressing unpleasantness associated with fluctuation in image quality caused by the viewer's viewpoint movement.Type: ApplicationFiled: May 31, 2019Publication date: July 28, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Motohiro MAKIGUCHI, Hideaki TAKADA
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Publication number: 20220191464Abstract: Provided is a display method that prevents degradation of image quality due to ghosting. The display method performed with a display apparatus includes a viewpoint position detection step (S1) for detecting a viewpoint position d that is an interval between a reflection screen and a viewer ?, a diffusion property control step (S2) for controlling a diffusion property of the reflection screen 40 in accordance with the viewpoint position d, and a projection step for projecting multiple viewpoint video images having disparity from multiple projectors to the reflection screen. The diffusion property control step (S2) includes controlling the diffusion property of the reflection screen 40 by varying a voltage or a duty cycle of an ac signal that is applied to a diffuser layer included in the reflection screen.Type: ApplicationFiled: May 14, 2019Publication date: June 16, 2022Inventors: Motohiro Makiguchi, Hideaki TAKADA
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Patent number: 11265533Abstract: Provided is an image generation technology capable of suppressing unpleasant feelings caused by fluctuation in image quality caused by the viewer's viewpoint movement. The image generation technology includes an image generation unit configured to generate a pseudo viewpoint image I?k and a pseudo viewpoint image I??k, by using disparity inducing edge D?k having a phase difference ?k from a viewpoint image I, where ?k(1?k?K) is set as a real number satisfying 0<?1< . . . <?K??/2, an output image generation unit configured to generate an output image Outm(1?m?2K?1), from the pseudo viewpoint image I(m)(1?m?2K+1), the viewpoint image I is set as a pseudo viewpoint image I?0, where the pseudo viewpoint images I?k, I??k (0?k?K) are arranged in a sequence of I?k, I?(K?1), . . . , I?1, I?0(=I), I??1, . . . , and I??K is set as I(1), I(2), . . . , I(K), I(K+1), I(K+2), . . .Type: GrantFiled: April 3, 2019Date of Patent: March 1, 2022Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Motohiro Makiguchi, Hideaki Takada, Taiki Fukiage, Shinya Nishida
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Publication number: 20210116718Abstract: A housing including a first viewing direction and a second viewing direction opposite to the first viewing direction, a first display unit disposed to be spaced from a top surface on a side of one end of the housing at a first interval with a display surface facing the housing, a second display unit disposed on a side of the other end of the housing, a first optical element configured to transmit a portion of light emitted from the first display unit and reflect a portion of the light, a second optical element configured to transmit a portion of light emitted from the second display unit and reflect a portion of the light, and a third optical element configured to transmit a portion of the light emitted from the first display unit and the second display unit and reflect a portion of the light.Type: ApplicationFiled: April 11, 2019Publication date: April 22, 2021Inventors: Motohiro Makiguchi, Hideaki Takada
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Publication number: 20210112237Abstract: Provided is an image generation technology capable of suppressing unpleasant feelings caused by fluctuation in image quality caused by the viewer's viewpoint movement. The image generation technology includes an image generation unit configured to generate a pseudo viewpoint image I?k and a pseudo viewpoint image I??k, by using disparity inducing edge D?k having a phase difference ?k from a viewpoint image I, where ?k(1?k?K) is set as a real number satisfying 0<?1< . . . <?K??/2, an output image generation unit configured to generate an output image Outm(1?m?2K?1), from the pseudo viewpoint image I(m)(1?m?2K+1), the viewpoint image I is set as a pseudo viewpoint image I?0, where the pseudo viewpoint images I?k, I??k (0?k?K) are arranged in a sequence of I?k, I?(K?1), . . . , I?1, I?0(=I), I??1, . . . , and I??K is set as I(1), I(2), . . . , I(K), I(K+1), I(K+2), . . .Type: ApplicationFiled: April 3, 2019Publication date: April 15, 2021Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Motohiro MAKIGUCHI, Hideaki TAKADA, Taiki FUKIAGE, Shinya NISHIDA
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Patent number: 10338462Abstract: An aerial image display device is capable of changing a depth of a virtual image viewed by an observer without changing a distance between at least one display device and an optical element forming the virtual image. The aerial image display device includes a display device, optical elements, and a reflecting member. The optical elements are installed corresponding to different display regions of a display surface of the display device and sequentially arranged along the display surface in an observation direction of an observer. The optical element is installed obliquely with an angle of about 45° in a ?X direction when viewed from the display surface of the display device. The optical element is installed obliquely with an angle of about 45° in an X direction when viewed from the display surface of the display device.Type: GrantFiled: August 31, 2016Date of Patent: July 2, 2019Assignee: Nippon Telegraph and Telephone CorporationInventors: Motohiro Makiguchi, Arinobu Niijima, Narimune Matsumura, Kota Hidaka
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Publication number: 20180246337Abstract: An aerial image display device is capable of changing a depth of a virtual image viewed by an observer without changing a distance between at least one display device and an optical element forming the virtual image. The aerial image display device includes a display device, optical elements, and a reflecting member. The optical elements are installed corresponding to different display regions of a display surface of the display device and sequentially arranged along the display surface in an observation direction of an observer. The optical element is installed obliquely with an angle of about 45° in a ?X direction when viewed from the display surface of the display device. The optical element is installed obliquely with an angle of about 45° in an X direction when viewed from the display surface of the display device.Type: ApplicationFiled: August 31, 2016Publication date: August 30, 2018Inventors: Motohiro Makiguchi, Arinobu Niijima, Narimune Matsumura, Kota Hidaka