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公开(公告)号:US09974101B2
公开(公告)日:2018-05-15
申请号:US15210850
申请日:2016-07-14
Inventor: Hiroshi Sekoguchi , Yoshifumi Asao
Abstract: The server is disposed in transport equipment having a plurality of seats and is capable of communicating with at least three radio communication devices and an input/output terminal. The server has a signal-intensity receiver, a storage, and a controller. The signal-intensity receiver receives signal-intensity information on radio waves of an external device. The storage stores first position data indicating a position corresponding to each of the radio communication devices, and second position data indicating a position corresponding to the input/output terminal. The controller receives a connection request for communicating between the radio communication devices and the external device. The controller estimates a position of the external device based on the signal-intensity information and the first position data, determines a connection priority of the external device based on the estimated position and the second position data, and transmits a connectable-device list based on the connection priority to the input/output terminal.
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公开(公告)号:US10855371B2
公开(公告)日:2020-12-01
申请号:US16367508
申请日:2019-03-28
Inventor: Yoshifumi Asao , Shutai Okamura
IPC: H04B10/116 , G09G5/12
Abstract: A visible light communication device is a visible light communication device capable of communicating with an other communication device, and includes an image acquisition unit and an image processing unit. The image acquisition unit acquires a first image signal including an R component, a G component, and a B component, the first image signal being output based on a communication signal of a visible light communication. The image processing unit outputs a second image signal in which an influence of the R component of the first image signal is reduced during the visible light communication with the other communication device.
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公开(公告)号:US10186016B2
公开(公告)日:2019-01-22
申请号:US15422536
申请日:2017-02-02
Inventor: Keijiroh Nagano , Masaharu Matsumoto , Yoshifumi Asao , Tetsuhiro Kaya , Masahiko Yamamoto
Abstract: An image processing device for generating a single image based on a plurality of images captured by a plurality of imaging devices having different pointing directions from each other includes a memory and a controller. The memory is configured to store information containing at least the pointing directions and fields of view of the plurality of imaging devices. The controller is configured to operate as follows: to acquire or generate, from the plurality of images, first image data and second image data whose imaging ranges do not overlap; to apply image processing to the first image data and the second image data in such a manner that the first image data and the second image data have angular ranges larger than the fields of view in at least one direction; and to generate a single piece of multi-directional image data containing the image-processed first image data and second image data.
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公开(公告)号:US11074809B2
公开(公告)日:2021-07-27
申请号:US16582472
申请日:2019-09-25
Inventor: Daiki Kurioka , Mitsuru Segawa , Yoshifumi Asao
Abstract: A communication system includes a first terminal and a second terminal including an stow part for stowing the first terminal. The first terminal includes a first light emitter that emits infrared light, a first light receiver that receives infrared light, and a first controller. The first controller causes the first light emitter to emit light based on first specifying information upon receiving a pairing request signal via the first light receiver. The second terminal includes a second stow sensor that detects stow of the first terminal, a second light emitter that emits infrared light, a second light receiver that receives infrared light, and a second controller. The second controller causes the second light emitter to emit light based on a pairing request signal in accordance with detection of stow of the first terminal by the second stow sensor and performs control corresponding to the information including the first specifying information.
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公开(公告)号:US09153223B2
公开(公告)日:2015-10-06
申请号:US13707483
申请日:2012-12-06
Inventor: Yoshifumi Asao , Tsuyoshi Maeda
IPC: G10K11/16 , H04R1/02 , G10K11/00 , G10K11/178 , H04R5/02
CPC classification number: G10K11/002 , G10K11/178 , G10K2210/1281 , G10K2210/1283 , G10K2210/3211 , G10K2210/3221 , H04R5/023
Abstract: A noise reduction device includes a noise controller, a control sound output component and a residual sound detector. The noise controller is configured to produce a control sound signal for canceling out noise. The control sound output component is configured to output a control sound based on the control sound signal produced by the noise controller. The residual sound detector is configured to detect a residual sound produced by superposition of noise and the control sound outputted from the control sound output component. The control sound output component and the residual sound detector are housed in the shell. The control sound output component and the residual sound detector are away from a rear face of the seat.
Abstract translation: 降噪装置包括噪声控制器,控制声音输出部件和残留声音检测器。 噪声控制器被配置为产生用于消除噪声的控制声音信号。 控制声音输出部件被配置为基于由噪声控制器产生的控制声音信号来输出控制声音。 剩余声音检测器被配置为检测由噪声叠加产生的残留声音和从控制声音输出部件输出的控制声音。 控制声音输出部件和残留声音检测器容纳在壳体中。 控制声音输出部件和残留声音检测器远离座椅的后表面。
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公开(公告)号:US11605362B2
公开(公告)日:2023-03-14
申请号:US17237623
申请日:2021-04-22
Inventor: Masaharu Matsumoto , Yoshifumi Asao , Takeshi Hatakeyama , Tomonori Sugiyama , Hideaki Nakagawa
Abstract: The information display device includes a surface member, a display, a light measurement unit, and a controller. The surface member is at least partially transmissive for light. The display is disposed on a back side of the surface member and is capable of displaying a display image including an information area for displaying information and a non-information area for displaying no information. The light measurement unit measures the amount of ambient light around the information display device. The controller acquires the amount of light measured by the light measurement unit and changes a pixel value of a display image according to the amount of light so that the display is difficult to be seen through a surface of the surface member.
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公开(公告)号:US10157605B2
公开(公告)日:2018-12-18
申请号:US15381546
申请日:2016-12-16
Inventor: Tsuyoshi Maeda , Yoshifumi Asao , Masaaki Higashida , Mitsuhiro Tosa , Kaname Tomita , Toshihide Abe
IPC: G10K11/16 , G10K11/178 , H04R1/02
Abstract: A noise reduction device is used together with a shell which surrounds at least a part of the periphery of reclinable seat. The device includes a plurality of noise microphones, a noise controller, and control speakers. Control speakers output a sound based on a control-sound signal that is generated by the noise controller. Each of noise microphones is accommodated in back wall configuring the shell and is set back from a surface of the back wall.
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公开(公告)号:US10146999B2
公开(公告)日:2018-12-04
申请号:US15295198
申请日:2016-10-17
Inventor: Keijiroh Nagano , Hiroki Sunagawa , Yoshifumi Asao , Masaharu Matsumoto
Abstract: A video management apparatus includes a video database for holding a plurality of pieces of video information each associated with an image position, a geographic information database for holding a plurality of pieces of geographic information each indicating a position of a different one of spots on a map, and a controller. The controller extracts spots located within a first range from a current position as a first spot group, based on the current position and the plurality of pieces of geographic information. Further, the controller extracts spots located within a second range from the image position as a second spot group, based on the image position and the plurality of pieces of geographic information. Then, the controller selects video information from the plurality of pieces of video information, based on a similarity degree of the second spot group with respect to the first spot group.
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公开(公告)号:US09734816B2
公开(公告)日:2017-08-15
申请号:US15002666
申请日:2016-01-21
Inventor: Tsuyoshi Maeda , Yoshifumi Asao
IPC: G10K11/178
CPC classification number: G10K11/178 , G10K11/17857 , G10K11/17881 , G10K2210/1281 , G10K2210/3027 , G10K2210/3219
Abstract: A noise reduction device includes a plurality of noise microphones, noise controller, and control speakers. Noise controller generates a control-sound signal to reduce a noise, at a control center of a control space, with the noise being detected by the plurality of noise microphones. Noise microphone disposed at a shorter distance from the control center than distance “d” indicated by Relational Expression (1) is smaller in number than noise microphones disposed at longer distances than distance “d” where “λ” is a wavelength corresponding to control upper-limit frequency “f” in noise microphones, “d0” is a distance from the control center to control speakers, “t” is a control delay time in control speakers, and “v” is a sound speed. d=d0+t×v−λ/2 (1)
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