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Patent Agency Ranking
公开(公告)号：US20150249397A1
公开(公告)日：2015-09-03
申请号：US14627069
申请日：2015-02-20
Inventor： Kiyoshi OGASAWARA , Takafumi FUJINO , Hiromichi GOTO , Teruhito TAKEDA , Satohiko HOSOMI , Kei MITSUYASU , Katsuyuki DOI , Hideaki ABE
CPC classification number: H02M3/33569 , H02M1/4266 , H02M7/06 , H02M2001/0006 , H02M2001/0058 , H02M2001/007 , H05B33/0815 , Y02B20/346 , Y02B70/123 , Y02B70/1491
Abstract: In a power supply device, a primary winding of a transformer is connected in series to a main switching element, and is connected in parallel to a series circuit of a resonance capacitor and a sub switching element. A secondary winding of the transformer is connected in series to a series circuit of a rectifying element and a resonance inductor. The capacitance of the resonance capacitor and the inductance of the resonance inductor are each set such that, when the sub switching element is in an on state, the waveform of the voltage that is generated between the first main terminal and the second main terminal of the main switching element takes a protruding curve shape, the voltage being generated due to a resonance phenomenon of at least the resonance capacitor and the resonance inductor.
Abstract translation: 在电源装置中，变压器的初级绕组与主开关元件串联连接，并联连接到谐振电容器和副开关元件的串联电路。 变压器的次级绕组串联连接到整流元件和谐振电感器的串联电路。 共振电容器的电容和谐振电感的电感各自被设定为使得当副开关元件处于导通状态时，在第一主端子和第二主端子之间产生的电压的波形 主开关元件呈现突出的曲线形状，由于至少谐振电容器和谐振电感器的谐振现象而产生电压。
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公开(公告)号：US20170188420A1
公开(公告)日：2017-06-29
申请号：US15388217
申请日：2016-12-22
Inventor： Shojiro KIDO , Teruhito TAKEDA , Hiromichi GOTO , Kazuo ITOH , Hiroyuki NISHINO , Shigeaki YAMASAKI
CPC classification number: H05B33/089 , H04B10/116 , H04B10/502 , H04B10/54 , H05B33/0818 , H05B33/0866 , H05B33/0872 , H05B37/0218
Abstract: An illumination light communication apparatus includes: a light source which emits illumination light; a power supply circuit for supplying constant current to the light source; a switch which is connected in series to the light source, and intermittently interrupts current which flows through the light source; a signal generating circuit which generates a binary communication signal which controls on and off of the switch to modulate the illumination light; and a current limiting circuit which is connected in series to the light source and the switch, and limits the current which flows through the light source to prevent the current from exceeding a current set value which is variable.
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3.发明申请公开(公告)号：US20190305846A1
公开(公告)日：2019-10-03
申请号：US16356237
申请日：2019-03-18
Inventor： Shojiro KIDO , Teruhito TAKEDA , Hiromichi GOTO , Kazuo ITOH , Hiroyuki NISHINO
IPC: H04B10/116 , H04B10/80 , H04B10/54
Abstract: Disclosed herein is a receiver including a receiver circuit, a control circuit, and a wireless communications circuit. The control circuit retrieves identification information and content information from a plurality of transmitters based on an output of the receiver circuit. The control circuit retrieves, when having failed to retrieve content information from the plurality of transmitters, identification information from at least two of the plurality of transmitters, identifies one of the at least two of the plurality of transmitters as a target transmitter in association with the retrieved identification information, and also identifies another one the at least two of the plurality of transmitters as a non-target transmitter in association with the retrieved identification information. The wireless communications circuit transmits the control signal to allow the target transmitter to transmit the second optical signal and cause the non-target transmitter not to transmit the second optical signal.
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公开(公告)号：US20190268069A1
公开(公告)日：2019-08-29
申请号：US16281142
申请日：2019-02-21
Inventor： Hiroyuki NISHINO , Hiromichi GOTO , Kazuo ITOH , Shojiro KIDO , Teruhito TAKEDA
IPC: H04B10/116 , H04B10/50 , H05B33/08 , H04B10/54
Abstract: A visible light communication apparatus includes: an on/off switch connected in series to a load circuit including a light emitting diode; an impedance circuit connected in series to the on/off switch; a feedback circuit that feeds back an error between a voltage drop across the impedance circuit and a reference voltage potential to a voltage source as a feedback signal; a drive circuit that turns on and off the on/off switch in accordance with a communication signal which is a binary signal; an isolation circuit that transmits power while being electrically isolated; and an auxiliary power supply circuit that is connected between two output terminals of the voltage source, generates an auxiliary supply voltage, and supplies power based on the auxiliary supply voltage generated to the on/off switch and the drive circuit via the isolation circuit.
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5.发明申请公开(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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