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公开(公告)号：US10091477B2
公开(公告)日：2018-10-02
申请号：US15183328
申请日：2016-06-15
Inventor： Akiyoshi Yamaguchi , Masutaka Inoue , Takaaki Gyoten , Takaaki Abe , Ryoji Okubo , Kazuma Tani
Abstract: The projection image display apparatus includes a display element that emits image light generated by modulating light from a light source based, a pixel-shifter that shifts a pixel of a projected image by changing an optical path of the image light, a resampling circuit, a motion-interpolation image processing circuit, and a pixel-shift controller. The resampling circuit generates a plurality of sub-frame image signals having a resolution of the display element, by resampling an image signal having a resolution of the projected image. The motion-interpolation image processing circuit provides a motion-interpolation image process to the sub-frame image signals. The pixel-shift controller receives the sub-frame image signals having undergone the motion-interpolation image process. The pixel-shift controller drives the display element and the pixel shifter at a given timing based on the sub-frame image having undergone the motion-interpolation image process, and then displays the projected image, which involves pixel-shift, on a screen.
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2.发明申请公开(公告)号：US20210366324A1
公开(公告)日：2021-11-25
申请号：US17323996
申请日：2021-05-18
Inventor： Ken Mashitani , Junji Masumoto , Takaaki Abe , Akio Yamanaka
IPC: G09G3/00
Abstract: A content generation method generates image content to be projected at a projection position in a real space by a projector. In a first acquisition process, space information regarding a virtual space corresponding to the real space is acquired. In a second acquisition process, display position information regarding a display position corresponding to the projection position in the virtual space is acquired. In a third acquisition process, reference position information regarding a reference position in the virtual space is acquired. In a generation process, an image including an object viewed from the reference position when the object is displayed at the display position in the virtual space is generated as the image content, based on the space information, the reference position information, and the display position information.
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公开(公告)号：US10353660B2
公开(公告)日：2019-07-16
申请号：US15701922
申请日：2017-09-12
Inventor： Ryoji Okubo , Ken Mashitani , Masaru Sekizawa , Takaaki Abe , Kazuma Tani
Abstract: Image display system 10 comprises: a plurality of display devices 111; an image processing unit for receiving input of a plurality of input video signals and generating an output video signal for each display device in accordance with a layout for the display devices from the input video signals; a pattern signal generation unit for generating pattern signals indicating a plurality of different test pattern images; a selector for receiving input of the output video signals and the pattern signals and selecting and outputting either the output video signals or the pattern signals; imaging device 120 for capturing an image of the test pattern images displayed on the respective display devices; and a control device 140 for analyzing the captured image captured by the imaging device and generating control information for controlling the image processing unit, based on analysis results.
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4.发明授权公开(公告)号：US12148331B2
公开(公告)日：2024-11-19
申请号：US17323996
申请日：2021-05-18
Inventor： Ken Mashitani , Junji Masumoto , Takaaki Abe , Akio Yamanaka
IPC: G09G3/00
Abstract: A content generation method generates image content to be projected at a projection position in a real space by a projector. In a first acquisition process, space information regarding a virtual space corresponding to the real space is acquired. In a second acquisition process, display position information regarding a display position corresponding to the projection position in the virtual space is acquired. In a third acquisition process, reference position information regarding a reference position in the virtual space is acquired. In a generation process, an image including an object viewed from the reference position when the object is displayed at the display position in the virtual space is generated as the image content, based on the space information, the reference position information, and the display position information.
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Patent Agency Ranking
公开(公告)号：US09823466B2
公开(公告)日：2017-11-21
申请号：US15179975
申请日：2016-06-11
Inventor： Takaaki Abe , Masutaka Inoue , Takaaki Gyoten , Ryoji Okubo , Akiyoshi Yamaguchi , Kazuma Tani
CPC classification number: G02B26/0875 , G03B21/008 , G03B21/14 , G03B21/204 , H04N9/3114 , H04N9/317
Abstract: The optical path changing device of the present disclosure includes an optical member having a parallel plate face for changing an optical path, and first, second, and third actuators. The first, the second, and the third actuators are connected with the optical member at first, second, and third vertices of a triangle imaginarily drawn on a plane parallel to the parallel plate face of the optical member. The first, the second, and the third actuators drive the optical member forward and backward in a normal direction of the parallel plate face at the first, the second, and the third vertices serving as points of load. The optical member has a center of gravity within the triangle when seen from the normal direction.
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公开(公告)号：US09664376B2
公开(公告)日：2017-05-30
申请号：US14876361
申请日：2015-10-06
Inventor： Takaaki Abe , Masutaka Inoue
CPC classification number: F21V33/0052 , G03B21/14 , G03B21/204 , G03B29/00 , H04N9/31 , H04N9/3111 , H04N9/315 , H04N9/3161 , H04N9/3185 , H04N9/3194 , H04N13/359
Abstract: A projection-type image display apparatus includes a light source unit, an image generating unit that generates image light according to an input video signal, a light-guide optical system that guides the light from the light source unit to the image generating unit, a projection optical system that projects the image light generated by the image generating unit, and a controller. The controller has a display mode in which the image light is projected and an illumination mode in which the light from the light source unit is emitted as illumination light. The controller controls the optical system to focus illumination light from the projection optical system on a projection surface, in the display mode, and to focus illumination light from the projection optical system at a position different from the projection screen, in the illumination mode.
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公开(公告)号：US12185031B2
公开(公告)日：2024-12-31
申请号：US18132559
申请日：2023-04-10
Inventor： Ken Mashitani , Takaaki Abe
Abstract: A projector in an installation information acquisition method is installed in a real space, has a changeable projection direction, and projects a projection image based on a virtual image. The virtual image is an image in a case where an image arranged at a display position in a virtual space is viewed from a virtual installation position. The method includes first acquisition processing for acquiring positional information of three or more first adjustment points in the virtual space, projection processing for projecting, by the projector, an index image onto the real space, second acquisition processing for acquiring angle information of the projection direction with respect to a reference direction in a state where the index image matches three or more second adjustment points respectively corresponding to the three or more first adjustment points, and third acquisition processing for acquiring installation information based on the positional information and the angle information.
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公开(公告)号：US11599014B2
公开(公告)日：2023-03-07
申请号：US17197743
申请日：2021-03-10
Inventor： Takaaki Abe , Ken Mashitani , Junji Masumoto
Abstract: A projection direction change device includes a mirror that reflects light emitted from a projection lens unit of a projector, a mirror support part that rotatably supports the mirror around a first axis and a second axis, a first drive part that rotary drives the mirror around the first axis, and a second drive part that rotary drives the mirror around the second axis. An intersecting point of the first and second axes is positioned closer to the projection lens unit than a geometric barycenter of the mirror is.
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公开(公告)号：US10158848B2
公开(公告)日：2018-12-18
申请号：US15284062
申请日：2016-10-03
Inventor： Ken Mashitani , Takaaki Abe , Tamotsu Akeyama
IPC: H04N13/363 , H04N13/339 , H04N13/354 , H04N13/359 , H04N13/398 , G03B21/14 , G03B35/16 , H04N9/31 , H04N13/341
Abstract: A projection video display that projects video image suppresses deterioration of its quality which is attributed to a change in an optical path of the video image. A video signal generator performs control such that a second subframe in an N-th frame in a left-eye image is displayed on DMDs and then a second subframe in an N-th frame in a right-eye image is displayed on the DMDs. Furthermore, the video signal generator performs control such that a displayed location is not changed on a screen and the same types of subframes are displayed at the time when frames are switched.
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