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公开(公告)号:US20180359839A1
公开(公告)日:2018-12-13
申请号:US15984382
申请日:2018-05-20
Inventor: Akihiro KISHIMOTO , Shojiro KIDO , Yukinori UCHIDA
CPC classification number: H05B37/0272 , H05B33/0815 , H05B37/0254
Abstract: A light source driving device includes: a light emission control unit configured to control light emission of a light source in response to an instruction signal; a communication circuit which receives a first instruction signal instructing first light emission control for visible light communication; and a timer which starts to measure waiting time for executing the first light emission control, triggered by the reception of the first instruction signal. The light control unit starts the first light emission control of the light source in response to an instruction signal at the end timing of the waiting time.
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12.
公开(公告)号:US20180351759A1
公开(公告)日:2018-12-06
申请号:US15989831
申请日:2018-05-25
Inventor: Akihiro KISHIMOTO , Shojiro KIDO
Abstract: There are provided an apparatus registration method capable of efficiently associating specific information about apparatuses and arrangement information about the apparatuses stored in an operation terminal, a program for implementing the method, and an apparatus system. A method for registration of luminaires associates a plurality of luminaires with items of arrangement information about the luminaires stored in an operation terminal for operating the luminaires. The method for registration of luminaires is adapted to include the steps of: consecutively reading at least two or more of items of specific information about the luminaires included in the luminaires using a RF reader; storing items of arrangement information about the luminaires into the operation terminal; and consecutively associating the at least two or more items of specific information consecutively read by the RF reader with at least two or more items of arrangement information among the items of arrangement information about the luminaires.
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13.
公开(公告)号:US20180295691A1
公开(公告)日:2018-10-11
申请号:US15942934
申请日:2018-04-02
Inventor: Teruhito TAKEDA , Shigeaki YAMASAKI , Shojiro KIDO , Kazuo ITOH , Hiromichi GOTO , Hiroyuki NISHINO
IPC: H05B33/08 , H04B10/116 , H04B10/50
Abstract: An illumination light communication apparatus to be connected to a light source that emits illumination light due to a current from a constant current generation device, and that modulates the illumination light includes: a switch connected in series to the light source; a signal generator circuit that generates a binary communication signal which controls ON and OFF states of the switch to modulate the illumination light; a current suppression circuit that is connected in series to the light source and the switch, and that suppresses the current flowing in the light source so that a current setting value corresponding to a reference value is not exceeded; and a controller that can change an ON duty ratio of the switch through the communication signal. The controller changes the ON duty ratio of the switch during a transition period in which a current flowing in the current suppression circuit changes.
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公开(公告)号:US20170309147A1
公开(公告)日:2017-10-26
申请号:US15495486
申请日:2017-04-24
Inventor: Shojiro KIDO , Kazuhiro HATTA
CPC classification number: H05B33/0857 , G08B5/36 , G08B13/00 , H05B37/0227 , H05B37/0272
Abstract: A lighting device includes: a light source switchable between illumination modes; a human detector which detects a person in a detection area in an illumination area of the light source; an ID reader which wirelessly reads an identification stored in an RF tag in a read area corresponding to the detection area; and a controller communicably connected to the light source, the human detector, and the ID reader. The controller obtains from the human detector human detection information indicating that one or more persons are present, obtains from the ID reader one or more identifications read by the ID reader when the human detector detects the one or more persons, and applies one mode of the illumination modes to the light source based on the human detection information and one or more identifications obtained, and the light source performs illumination in the applied mode.
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