公开(公告)号：US09820262B2

公开(公告)日：2017-11-14

申请号：US14429121

申请日：2013-08-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yosuke Ukita ,  Toshio Taniguchi ,  Takashi Fujii ,  Teruhito Takeda ,  Seiji Nimura ,  Satoshi Okage

IPC: H04W72/04 ,  H04W28/02 ,  H04W80/02 ,  H04W48/16

CPC classification number: H04W72/04 ,  H04W28/0278 ,  H04W48/16 ,  H04W60/02 ,  H04W80/02

Abstract: A control device includes: a receiving unit that receives a first beacon request for performing registration processing from a communication terminal device; a detection unit that detects a control signal indicating a request for starting the registration processing; a registration control unit that starts the registration processing when the detection unit detects the control signal and executes the registration processing for a certain period; and a transmission control unit that: transmits the beacon signal when the receiving unit receives the first beacon request in a period during which the registration control unit is executing the registration processing; and avoids transmitting the beacon signal when the first beacon request is received in a period during which the registration control unit is not executing the registration processing.

公开(公告)号：US10530477B2

公开(公告)日：2020-01-07

申请号：US16281142

申请日：2019-02-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroyuki Nishino ,  Hiromichi Goto ,  Kazuo Itoh ,  Shojiro Kido ,  Teruhito Takeda

IPC: H04B10/116 ,  H04B10/50 ,  H04B10/54 ,  H05B33/08

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.

公开(公告)号：US10896944B2

公开(公告)日：2021-01-19

申请号：US16580096

申请日：2019-09-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Teruhito Takeda ,  Hirofumi Konishi ,  Shinji Makimura

IPC: G02B6/42 ,  H01L27/32 ,  H01L27/15 ,  G09G3/34 ,  H01L27/24

Abstract: An illumination lighting apparatus is configured to light a plurality of light-emitting elements connected in series to each other. The illumination lighting apparatus includes one photosensor and a detector. The one photosensor is configured to detect light emitted from the plurality of light-emitting elements. The detector is configured to perform detection of a light emission defect on the plurality of light-emitting elements based on the light detected by the one photosensor. Moreover, the detector performs the detection process at an initial stage of lighting of the plurality of light-emitting elements.

公开(公告)号：US09814115B2

公开(公告)日：2017-11-07

申请号：US15388217

申请日：2016-12-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shojiro Kido ,  Teruhito Takeda ,  Hiromichi Goto ,  Kazuo Itoh ,  Hiroyuki Nishino ,  Shigeaki Yamasaki

IPC: H04B10/00 ,  H05B33/08 ,  H04B10/50 ,  H04B10/54 ,  H05B37/02 ,  H04J14/00

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.

公开(公告)号：US09369053B2

公开(公告)日：2016-06-14

申请号：US14627069

申请日：2015-02-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kiyoshi Ogasawara ,  Takafumi Fujino ,  Hiromichi Goto ,  Teruhito Takeda ,  Satohiko Hosomi ,  Kei Mitsuyasu ,  Katsuyuki Doi ,  Hideaki Abe

IPC: H02M3/335 ,  H02M1/42 ,  H02M1/00 ,  H05B33/08 ,  H02M7/06

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。