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公开(公告)号：US20190132054A1
公开(公告)日：2019-05-02
申请号：US16168221
申请日：2018-10-23
Inventor： Shigeru IDO , Keisuke SEKI , Kazuhiko HAYASHI
IPC: H04B10/516 , H04L7/00 , H04B10/80
Abstract: A modulation device includes: a signal input circuit that receives an external input signal and outputs the signal downstream as a first signal; and an arithmetic processor positioned downstream of the signal input circuit. The arithmetic processor is configured to: determine when an external ID signal including ID information has been input as the first signal, and when determining that an external ID signal including ID information has been input as the first signal, acquire the ID information from the external ID signal, obtain transmission timing synchronizing with the first signal based on the external ID signal, and output a light source drive signal that drives a light source according to the ID information based on the transmission timing synchronizing with the input signal.
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公开(公告)号：US20180343057A1
公开(公告)日：2018-11-29
申请号：US15984368
申请日：2018-05-20
Inventor： Keisuke SEKI , Shigeru IDO , Kazuhiko HAYASHI
IPC: H04B10/116 , H05B33/08 , H05B37/02
CPC classification number: H04B10/116 , H02M1/14 , H02M1/4225 , H02M3/156 , H02M3/33507 , H02M2001/007 , H02M2001/008 , H04B10/502 , H05B33/0815 , H05B33/0824 , H05B33/0845 , H05B37/0272
Abstract: A lighting device includes: a constant current supply circuit; and a first modulation circuit and a second modulation circuit that are connected in series between output terminals of the constant current supply circuit. The first modulation circuit includes a first capacitor that is connected in parallel to the first modulation circuit. The second modulation circuit includes a second capacitor that is connected in parallel to the second modulation circuit.
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公开(公告)号：US20180063931A1
公开(公告)日：2018-03-01
申请号：US15682660
申请日：2017-08-22
Inventor： Yuya YAMAMOTO , Toshifumi OGATA , Shigeru IDO , Shun KUSUDA
CPC classification number: H05B39/041 , H05B33/0803 , H05B33/083
Abstract: A light-emitting device includes a light emission controller which causes first and second light-emitting element groups to emit light, by supplying undulating voltage to the first and second light-emitting element groups. The light emission controller supplies the undulating voltage to the first light-emitting element group, during a first period in which a magnitude of the undulating voltage is greater than a first predetermined value and at most a second predetermined value. The second predetermined value is less than a maximum value of the undulating voltage. The light emission controller supplies the undulating voltage to the first and second light-emitting element groups during a second period in which the magnitude of the undulating voltage is greater than the second predetermined value. The first light-emitting element group surrounds the second light-emitting element group.
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公开(公告)号：US20160037593A1
公开(公告)日：2016-02-04
申请号：US14743539
申请日：2015-06-18
Inventor： Shigeru IDO , Hiroshi KIDO , Akinori HIRAMATU , Takeshi KAMOI , Katsushi SEKI , Daisuke YAMAHARA , Daisuke UEDA
IPC: H05B33/08
CPC classification number: H05B33/083 , H05B33/0809 , H05B33/089 , H05B37/02
Abstract: An illumination device includes a main light source block having a plurality of main light sources and a plurality of current limiters, and an auxiliary light source block having an auxiliary light source and a constant-current unit. A series circuit of the auxiliary light source and the constant-current unit is electrically connected in parallel with the main light source block, between first and second output terminals of a rectifier. A smoothing capacitor is electrically connected in parallel with a specific main light source among the plurality of main light sources. The specific main light source and a corresponding current limiter are electrically connected in parallel with the series circuit of the auxiliary light source and the constant-current unit.
Abstract translation: 照明装置包括具有多个主光源和多个限流器的主光源块，以及具有辅助光源和恒流单元的辅助光源块。 辅助光源和恒流单元的串联电路在整流器的第一和第二输出端子之间与主光源块并联电连接。 平滑电容器与多个主光源中的特定主光源并联地电连接。 特定主光源和对应的限流器与辅助光源和恒流单元的串联电路并联电连接。
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公开(公告)号：US20150250036A1
公开(公告)日：2015-09-03
申请号：US14619645
申请日：2015-02-11
Inventor： Daisuke UEDA , Hiroshi KIDO , Akinori HIRAMATU , Junichi HASEGAWA , Shigeru IDO
IPC: H05B33/08
CPC classification number: H05B33/0848 , H05B33/0815 , H05B33/089
Abstract: A lighting device includes: first and second power feed terminals between which a light source of a light source device is configured to be electrically connected; a power supply circuit having output ends electrically connected respectively to the first and second power feed terminals and configured to output a DC power across the first and second power feed terminals; a control circuit configured to control the power supply circuit; and at least one identifying terminal for identifying a rated current of a light source. The control circuit is configured to identify a rated current of a light source connected between the first and second power feed terminals by detecting whether the identifying terminal is in floating state or not, and to control the power supply circuit so as to supply a current corresponding to the identified rated current through the first and second power feed terminals.
Abstract translation: 照明装置包括：第一和第二馈电端子，其中光源装置的光源被配置为电连接; 电源电路，其输出端分别电连接到第一和第二馈电端子，并且被配置为在第一和第二馈电端子上输出DC电力; 控制电路，被配置为控制所述电源电路; 以及用于识别光源的额定电流的至少一个识别终端。 该控制电路被配置为通过检测识别终端是否处于浮置状态来识别连接在第一和第二馈电端子之间的光源的额定电流，并且控制电源电路以便提供对应的电流 通过第一和第二馈电端子到所识别的额定电流。
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Patent Agency Ranking
公开(公告)号：US20150145422A1
公开(公告)日：2015-05-28
申请号：US14518391
申请日：2014-10-20
Inventor： Akinori HIRAMATU , Hiroshi KIDO , Junichi HASEGAWA , Shigeru IDO , Daisuke UEDA
CPC classification number: H05B33/0815 , H05B33/0803 , Y02B20/346
Abstract: A lighting device includes: a plurality of DC power supply circuits. A plurality of light sources and switching units are connected to each of the DC power supply circuits, the switching units being configured to respectively switch electrical connection between the light sources and said each of the DC power supply circuits. A difference in rated voltage between any two light sources connected to one of the plurality of DC power supply circuits in common is smaller than a difference in rated voltage between two light sources respectively connected to different DC power supply circuits of the plurality of DC power supply circuits.
Abstract translation: 照明装置包括：多个直流电源电路。 多个光源和开关单元连接到每个直流电源电路，开关单元被配置为分别切换光源和所述每个直流电源电路之间的电连接。 连接到多个DC电源电路之一的任意两个光源之间的额定电压的差异小于分别连接到多个DC电源的不同直流电源电路的两个光源之间的额定电压差 电路。
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公开(公告)号：US20190268992A1
公开(公告)日：2019-08-29
申请号：US16411976
申请日：2019-05-14
Inventor： Keisuke SEKI , Shigeru IDO , Kazuhiko HAYASHI
Abstract: An illuminating apparatus includes a first light emitter, a second light emitter which emits light including more predefined color components than light emitted by the first light emitter, and a lighting device which supplies current modulated according to a visible light communication signal, to the first light emitter. The lighting device supplies a constant current to the second light emitter, while the first light emitter is supplied with current.
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公开(公告)号：US20180338364A1
公开(公告)日：2018-11-22
申请号：US15981553
申请日：2018-05-16
Inventor： Shigeru IDO , Keisuke SEKI , Kazuhiko HAYASHI
CPC classification number: H05B33/0887 , G09F13/04
Abstract: A lighting device is a device that is for supplying current to an LED unit, is connected to a constant current source having output terminals to which a capacitor is connected, and includes: a transistor connected in parallel with the capacitor and connected in series with the LED unit; a modulation circuit (a microcomputer of a modulator, etc.) that causes the transistor to switch ON and OFF based on a signal for visible light communication; and a constant current control circuit that maintains a current flowing through the transistor at a constant current when the current flowing through the transistor is greater than a first predetermined value.
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公开(公告)号：US20180255617A1
公开(公告)日：2018-09-06
申请号：US15898458
申请日：2018-02-17
Inventor： Hiroshi KIDO , Shigeru IDO , Hisao KATAOKA , Naohiro TODA
CPC classification number: H05B33/0845 , H05B33/0809 , H05B33/0857 , H05B33/086 , H05B37/0209 , H05B37/029
Abstract: A lighting device is provided that includes a lighting controller that controls a light emitter that emits illumination light. The lighting controller includes a first filter that converts a first signal waveform that is defined by a first piecewise linear curve and whose intensity repeatedly increases and decreases into a signal waveform having a smooth rounded curve, and outputs the converted signal waveform as a first output waveform. The lighting controller causes the light emitter to repeatedly increase and decrease the intensity of the illumination light in accordance with the first output waveform.
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公开(公告)号：US20180184490A1
公开(公告)日：2018-06-28
申请号：US15848015
申请日：2017-12-20
Inventor： Shigeru IDO
IPC: H05B33/08
CPC classification number: H05B33/089 , H05B33/0824
Abstract: A first control circuit is configured to detect a value of a load current flowing through a solid-state light source in a lighting time period, and control a control element at a first response speed so as to make the value of the load current agree with a first target value. A second control circuit is configured to detect the value of the load current in the lighting time period, and control the control element at a second response speed so that the value of the load current does not exceed an upper limit that is larger than a first target value. The second response speed is higher than the first response speed.
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