Plural Circuit Elements Patents (Class 315/51)
  • Patent number: 10524338
    Abstract: An internet of things system having a smart light bulb and a smart fixture. The smart light bulb may be inserted into and connect with the smart fixture for power to the smart light bulb. The smart light bulb may be configured by reading configuration information from a memory in the smart fixture. As a whole, the system may have two or more smart light bulbs inserted in two or more smart fixtures, respectively. The two or more smart light bulbs may be interconnected with one another with communication links to make up a mesh network. Non-bulb devices may be connected to the mesh network.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: December 31, 2019
    Assignee: Honeywell International Inc.
    Inventor: Philipp Anton Roosli
  • Patent number: 10440785
    Abstract: A current holding circuit for a bidirectional triode thyristor (TRIAC) dimmer and a linear dimming driving circuit are provided. The current holding circuit for a TRIAC dimmer is a resistance and capacitance (RC) circuit including a first resistor and a first capacitor connected in series. The RC circuit is connected in parallel with any one of rectifying diodes of a rectifying bridge in the linear dimming driving circuit. The linear dimming driving circuit includes an overcurrent protecting circuit, a rectifying bridge including four rectifying diodes connected, the RC circuit, a surge suppressing circuit configured to absorb a high surge voltage of an input voltage, a filtering circuit, a linear constant-current circuit, and a flicker eliminating circuit configured to eliminate flicker caused by an asymmetrical current of a light emitting diode (LED) load due to the RC circuit.
    Type: Grant
    Filed: July 1, 2018
    Date of Patent: October 8, 2019
    Assignee: ZHEJIANG YANKON MEGA LIGHTING CO., LTD.
    Inventors: Yang Li, Lingxiang Zhong, Quanjiang Xu, Jingfei Lv
  • Patent number: 10426003
    Abstract: An LED tube lamp includes a tube having two ends, two end caps respectively at the ends of the tube, a power supply in one or both of the end caps, an LED light strip in the tube; and a plurality of LED light sources on the LED light strip. Each of the end caps comprises a lateral wall substantially coaxial with the tube, an end wall substantially perpendicular to an axial direction of the lateral wall, and at least one opening penetrating through the end wall. An axial direction of the at least one opening is substantially parallel with an axial direction of the lateral wall. The LED light sources electrically connected to the power supply via the LED light strip.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: September 24, 2019
    Assignee: JIAZING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD.
    Inventors: Tao Jiang, Qifeng Ye, Yueqiang Zhang
  • Patent number: 10344920
    Abstract: A lighting device includes a filament, a filament fixing element, a driving circuit, a lamp holder and a bulb shell. The filament has a long strip bottom, installed with a plurality of LED modules. The filament fixing element has a bearing surface and a heat dissipation part. The bearing surface connects to the long strip bottom of the filament. The heat dissipation part is connected to the bearing surface to dissipate the heat. The driving circuit provides a suitable current to the filament for emitting light. The lamp holder houses the drive circuit and carries the filament fixing element. The bulb shell and the lamp holder constitute an accommodating space for receiving the filament and the filament fixing element.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: July 9, 2019
    Assignee: XIAMEN ECO LIGHTING CO. LTD.
    Inventors: Liangliang Cao, Lilei Su, Wanzhen Li, Maojin Zeng, Xiaojuan Huang, Lianwei Zhang, Mingyan Fu
  • Patent number: 10344925
    Abstract: A lighting device and a method for manufacturing a lighting device, the lighting device comprising an elongated body (10), a cover (20), and one or more light sources (30). The body (10) of the lighting device comprises a bottom (13) and walls (11, 12) extending from the bottom and having open edges, whereby the cover (20) of the lighting device is formed from a light transmitting plastic material tube arranged between the open edges of said walls (11, 12) at a distance from the bottom (13), the one or more light sources (30) being located in a space delimited by the body (10) and the cover (20) of the lighting device, the body of the lighting device comprising at least one curved portion to provide a curved lighting device.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: July 9, 2019
    Assignee: Teknoware Oy
    Inventor: Oskari Siltanen
  • Patent number: 10337676
    Abstract: A light-emitting diode (LED) tube lamp includes at least a first and second external connection terminal each connected to an opposite side of the ballast by-pass LED tube lamp and is capable of operating in a ballast-bypass mode The LED tube lamp includes an LED module configured to emit light in response to a lamp driving signal and a power supply module electrically connected to the first and second external connection terminals for receiving an AC supply signal having frequency of 50 Hz or 60 Hz in the ballast-bypass mode and configured to provide the driving current to the LED module.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: July 2, 2019
    Assignee: Jiaxing Super Lighting Electric Appliance Co., Ltd.
    Inventors: Aiming Xiong, Xintong Liu
  • Patent number: 10317017
    Abstract: A ballast-bypass light-emitting diode (LED) tube lamp includes at least a first and second external connection terminal, the first and second external connection terminals respectively connected to opposite sides of the ballast by-pass LED tube lamp. The tube lamp includes an LED module, configured to emit light in response to a driving current, and a power supply module, electrically connected to the first and second external connection terminals for receiving an AC driving signal and configured to provide the driving current to the LED module. The power supply module comprises a rectifying circuit, a filtering circuit, a driving circuit, and a circuit electrically connected to the driving circuit and configured to operate in response to whether a foreign external impedance is connected to the LED tube lamp.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: June 11, 2019
    Assignee: Jiaxing Super Lighting Electric Appliance Co., Ltd.
    Inventors: Aiming Xiong, Xintong Liu
  • Patent number: 10317064
    Abstract: A light source unit includes a light emitting element which functions as a light source, a wiring pattern on which the light emitting element is mounted, an electrode pad connected to the wiring pattern, a substrate on which the wiring pattern is formed and the electrode pad is mounted, a power supply body which supplies external power to the electrode pad, and a socket housing which has an engaging portion engaged with a predetermined member and holds the substrate, the light emitting element and the power supply body. The power supply body has a terminal holding portion formed of an insulating resin material and a connection terminal supported by the terminal holding portion and connected to an external power supply. The connection terminal and the electrode pad are connected to each other by a conduction connecting part.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: June 11, 2019
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Atsushi Ozawa, Tomoyuki Nakagawa, Tsutomu Machida
  • Patent number: 10295125
    Abstract: An LED tube lamp comprises a lamp tube, two end caps attached at two ends of the lamp tube respectively, a power supply disposed in one of the two end caps or separately in both of the end caps, an LED light strip disposed inside the lamp tube and a protective layer disposed on the LED light strip. The LED light strip comprises a mounting region and a connecting region. The plurality of LED light sources is mounted on the mounting region and two soldering pads are disposed on the connecting region. The mounting region and the connecting region are electrically connecting the plurality of LED light sources with the power supply. The protective layer comprises a plurality of first openings arranged on the mounting region for accommodating the LED light sources and two second openings are arranged on the connecting region for accommodating the two soldering pad.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: May 21, 2019
    Assignee: JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Li-Qin Li, Tao Jiang, Chang Yang, Bao Wang
  • Patent number: 10295141
    Abstract: Embodiments of the present disclosure relate to a lighting strip, comprising a flexible printed circuit strip which comprises a plurality of wiring portions and a plurality of respective carrying portions, the wiring portions are used to supply electrical power to electric elements disposed on the carrying portions, and the carrying portions protrude from the wiring portions and are adapted to be bent around the wiring portions; a plurality of solid-state lighting elements respectively mounted on the carrying portions; wherein the wiring portion is provided with at least one pitch adjusting portion for adjusting a pitch between two adjacent carrying portions. Embodiments of the present disclosure also relate to a lighting device.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: May 21, 2019
    Assignee: Lumileds Holding B.V.
    Inventors: Coon Chow Tan, Su Ping Tan, Tomonari Ishikawa, Selvakumar Palaniandy
  • Patent number: 10228113
    Abstract: An electric candle including a body having a wax-like exterior configured to mimic an appearance of a wax candle, a first non-laser light source disposed at least partially within the body and configured to produce a light which mimics a flame of a wax candle, and a second light source producing a laser light disposed at least partially within the body and including a lens configured to disperse the laser light.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: March 12, 2019
    Assignee: Telebrands Corp.
    Inventor: Lou Lentine
  • Patent number: 10083648
    Abstract: The present disclosure discloses an image display method and a display apparatus. The display apparatus includes a pixel array which is composed of a plurality of basic pixel units repeated along horizontal and vertical directions; the pixel array includes first sub-pixels of a first color, second sub-pixels of a second color and third sub-pixels of a third color; wherein, the display method includes: acquiring first data denoting positions and gray values needed to be displayed of each color in the image respectively; acquiring second data denoting space proportions of each color occupied in each pixel of the pixel array respectively; and for each of the sub-pixels contained in each of the pixels, acquiring third data according to the first data and the second data to display the image, the third data denoting a display gray value of each of the sub-pixels of the pixels in the pixel array.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: September 25, 2018
    Assignee: EverDisplay Optronics (Shanghai) Limited
    Inventor: Yu-Hsiung Feng
  • Patent number: 10054271
    Abstract: An LED tube lamp is disclosed. An installation detection circuit is configured in the LED tube lamp configured to receive an external driving signal. The installation detection circuit is configured to detect during one or more pulse signals whether the LED tube lamp is properly installed on a lamp socket, based on detecting a signal generated from the external driving signal. The installation detection circuit includes a switch circuit coupled to the pulse generating circuit, wherein the one or more pulse signals control turning on and off of the switch circuit.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: August 21, 2018
    Assignee: Jiaxing Super Lighting Electric Appliance Co., Ltd.
    Inventors: Aiming Xiong, Xintong Liu
  • Patent number: 10008518
    Abstract: A thin-film transistor array panel includes a gate line disposed on a first substrate, the gate line including a gate electrode, a semiconductor layer disposed on the first substrate, the semiconductor layer including an oxide semiconductor, a data wire layer disposed on the first substrate, the data wire layer including a data line crossing the gate line, a source electrode connected to the data line, and a drain electrode facing the source electrode, a capping layer disposed on the data wire layer, a tilt layer disposed on the capping layer, and a passivation layer disposed on the tilt layer, in which the tilt layer includes a silsesquioxane-based copolymer.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: June 26, 2018
    Assignee: Samsung Display Co., Ltd
    Inventors: Chan Woo Yang, Hyun Eok Shin, Su Kyoung Yang, Dong Min Lee
  • Patent number: 9980329
    Abstract: An LED tube lamp includes a lamp tube having two pins to receive an external driving signal; a rectifying circuit coupled to the two pins to rectify the external driving signal; a filtering circuit coupled to the rectifying circuit to filter rectified signal; and an LED lighting module coupled to the filtering circuit to receive the filtered signal to emit light. The LED lighting module further has a driving circuit and an LED module, the driving circuit includes a controller and a conversion circuit coupled to the filtering circuit to receive and convert filtered signal into driving signal to drive the LED module. The LED tub lamp further includes an over voltage protection circuit coupled to the filtering circuit for detecting the filtered signal, the over voltage protection circuit clamps the filtered signal when determining the filtered signal is higher than a defined over voltage protection value.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: May 22, 2018
    Assignee: Jiaxing Super Lighting Electric Appliance Co., Ltd.
    Inventors: Hechen Hu, Aiming Xiong
  • Patent number: 9970602
    Abstract: A power supply module is applicable to an LED tube lamp adapted to install on a lamp socket, and having electric shock protection function, the LED tube lamp including a lamp tube; two end caps, each having a first external connection terminal, and each coupled to a respective end of the lamp tube, the first connection terminals of the two end caps for receiving an external signal; and an LED module configured for emitting light.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: May 15, 2018
    Assignee: Jiaxing Super Lighting Electric Appliance Co., Ltd.
    Inventors: Aiming Xiong, Xintong Liu, Kanghong Zhang
  • Patent number: 9918371
    Abstract: A wireless replacement light bulb with one or more accompanying control switches, such as an integrated switch and/or a wireless lamp switch is provided. The bulb comprises a light source, such as an LED element, a controller, a wireless interface, and one or more accompanying control switches, such as an integrated switch and/or a wireless lamp switch. The bulb can be controlled, such as turned on or off, by a user using the integrated switch, the wireless lamp switch, or a combination thereof. The integrated switch and the wireless lamp switch does not remove power from the controller, allowing the controller to control the bulb in response to receiving a wireless control signal from a remote electronic device, such as a remote control, a smartphone, a tablet, or the like.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: March 13, 2018
    Assignee: Crestron Electronics, Inc.
    Inventor: Doug Jacobson
  • Patent number: 9913331
    Abstract: A lighting circuit comprises a first circuit (1) with an element (31) with a diode function coupled serially to a parallel combination of a capacitor (41) and a serial combination of a first LED (21) and a first switch (11) and comprises a second circuit (2) with a second switch (12). The circuits (1, 2) are parallel circuits. The lighting circuit produces light in response to a supply current from a current source (6). The second switch (12), when conducting, lets the supply current pass and prevents it from flowing through the element (31), and, when non-conducting, blocks the supply current and it flows through the element (31). The first switch (11), when non-conducting, prevents the first LED (21) from producing some of the light, and, when conducting, allows the first LED (21) to produce some of the light. Power for the first LED (21) is delivered via the supply current when flowing through the element (31) or via a capacitor current supplied by the capacitor (41).
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: March 6, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Kumar Arulandu, Rifat Ata Mustafa Hikmet
  • Patent number: 9907148
    Abstract: An LED lighting system includes a plurality of light-emitting diodes (LEDs), at least one driver to drive the plurality of LEDs, and at least one heat sink to dissipate thermal energy produced by the LEDs. The heat sink communicates a thermal resistance value or other heat dissipation characteristic information to the LED lighting system. A power adjustment module of the LED lighting system modifies a current flow to the plurality of LEDs based on the characteristics of the heat sink.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: February 27, 2018
    Assignee: Dynotron, Inc.
    Inventor: James Saffari
  • Patent number: 9812847
    Abstract: An ionizer includes: a positive-side transformer, and a negative-side transformer; a positive-side high-voltage output circuit that has a first input terminal and a second input terminal that are respectively connected to a ground terminal and a power supply terminal, the ground terminal and power supply terminal being provided on the secondary of the positive-side transformer, and also has a first output terminal from which a direct-current positive high voltage is output; a negative-side high-voltage output circuit that has a third input terminal and a fourth input terminal that are respectively connected to a ground terminal and a power supply terminal, the ground terminal and power supply terminal being provided on the secondary of the negative-side transformer, and also has a second output terminal from which a direct-current negative high voltage is output; and a discharge electrode connected to the first output terminal.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: November 7, 2017
    Assignee: SMC CORPORATION
    Inventors: Naoto Sasada, Suguru Konno, Takashi Yasuoka
  • Patent number: 9769887
    Abstract: A power converter for an LED assembly includes a switched mode power supply arranged to power the LED assembly, an AC/DC converter arranged to provide a DC supply voltage to the switched mode power supply, and a control unit arranged to receive an input signal representing a required load voltage for powering the LED assembly. The control unit is arranged to control the AC/DC converter based on the input signal.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: September 19, 2017
    Assignee: EldoLAB Holding B.V.
    Inventor: Petrus Johannes Maria Welten
  • Patent number: 9746138
    Abstract: A modular lighting and ancillary component apparatus and system utilizes standard USB protocol and connections between modules so that different modules can be selected, installed, and changed by a user. The USB-C protocol is preferably used, which may permit bidirectional functionality between connected modules in an apparatus and potentially between separate apparatuses. The USB-PD protocol may also be employed so that a greater range of items can be powered. The apparatus includes a base module, and may include one or more ancillary modules and/or a light-emitting module.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: August 29, 2017
    Inventor: John-Michael Dimitro Thomas
  • Patent number: 9723662
    Abstract: A power source module for an LED lamp includes a filament-simulating circuit electrically connected to a first bi-pin terminal and a second bi-pin terminal of the LED lamp, each of the first bi-pin terminal and the second bi-pin terminal configured to allow a current to flow from one pin to the other pin via the filament-simulating circuit during a pre-heat process executed by a ballast; a current limiting circuit electrically connected to the filament-simulating circuit configured to limit a current from the filament-simulating circuit; a first rectifier electrically connected to the current limiting circuit configured to rectify the current from the current limiting circuit; and a filter electrically connected between the first rectifier and at least one LED of the LED lamp configured to smooth the current from the first rectifier.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: August 1, 2017
    Assignee: Jiaxing Super Lighting Electric Appliance Co., Ltd.
    Inventors: Qifeng Ye, Tao Jiang, Yueqiang Zhang, Zhong Chen
  • Patent number: 9689536
    Abstract: An LED tube lamp is disclosed. An installation detection circuit is configured in the LED tube lamp configured to receive an external driving signal. The installation detection circuit is configured to detect during one or more pulse signals whether the LED tube lamp is properly installed on a lamp socket, based on detecting a signal generated from the external driving signal. The installation detection circuit includes a switch circuit coupled to the pulse generating circuit, wherein the one or more pulse signals control turning on and off of the switch circuit.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: June 27, 2017
    Assignee: Jiaxing Super Lighting Electric Appliance Co., Ltd.
    Inventors: Aiming Xiong, Xintong Liu, Kanghong Zhang
  • Patent number: 9644799
    Abstract: An LED light bulb with integrated power supply, and which may incorporate integrated communications and processing functions. The LED light bulb is designed to be efficiently manufactured in mass quantities using automated assembly techniques, and is constructed to exhibit the spatial light pattern of a regular incandescent bulb as closely as possible. Where communications and processing functions are integrated, the LED light bulb is able to communicate via wireless communications to a mobile phone, notebook, tablet, or other computing device.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: May 9, 2017
    Assignee: SMARTBOTICS INC.
    Inventors: Ian Crayford, Kelly Coffey, Jon Edwards
  • Patent number: 9648705
    Abstract: A lamp head assembly is provided. The lamp head assembly includes a plurality of arrays of light producing elements; a driver circuit configured to provide energy to each of the plurality of arrays; and a microprocessor for controlling operation of the driver circuit.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: May 9, 2017
    Assignee: Heraeus Noblelight America LLC
    Inventors: William E. Johnson, III, Darrin Leonhardt, Mahmood Gharagozloo, Arunachalam Jawahar
  • Patent number: 9615414
    Abstract: A power supply device includes a power supply input portion, a rectification portion, a smoothing portion, a power conversion portion, a power supply output portion, a signal input portion, a control portion, a circuit substrate, and a case. The circuit substrate is formed in an elongated rectangular plate-like shape. The power supply input portion is mounted on a first end portion of the circuit substrate in a longitudinal direction. The rectification portion, the smoothing portion, the power conversion portion, the control portion, and the power supply output portion are mounted on the circuit substrate in the stated order from the first end portion toward a second end portion in the longitudinal direction. The signal input portion is mounted at a position closer to the second end portion than the rectification portion in the circuit substrate.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: April 4, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Katsunobu Hamamoto, Yasunori Yamamura, Tetsushi Tamura
  • Patent number: 9572221
    Abstract: An auto-sensing dimming lamp guides ambient light to a sensor installed in a lamp cover and at a base through a light pipe. The auto-sensing dimming lamp automatically adjusts a light emission status of LED light sources according to the ambient light by a processor installed at the base. The processor includes a pass filter unit and a modulation unit, and the pass filter unit receives a detected signal waveform of the sensor and a driving voltage waveform of the LED light sources.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: February 14, 2017
    Assignee: Unity Opto Technology Co., Ltd.
    Inventors: Wei Chang, Kai-Cheng Chuang, Yi-Shu Chen
  • Patent number: 9512989
    Abstract: In various embodiments, a lamp arrangement with a lamp including a base which is able to be inserted into a socket for establishing contact with the lamp, wherein the lamp arrangement has at least one operating element for setting a property of the lamp, wherein the at least one operating element is not accessible when the lamp is being used in the intended manner.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: December 6, 2016
    Assignee: OSRAM GMBH
    Inventor: Harald Dellian
  • Patent number: 9504122
    Abstract: A light emitting diode (LED) lamp circuit is adapted to replace a fluorescent lamp in a fluorescent light fixture without having to modify the fluorescent light fixture in any way. The LED light string and its associated drive circuitry may be divided into two symmetric light strings. Furthermore, the two strings (power rails more precisely) may be tied together with a diode voltage/current steering system. The fluorescent replacement LED lamp design ‘spoofs’ all fluorescent lamp drive modes that a ballast could be configured for.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: November 22, 2016
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventor: John K. Gulsen
  • Patent number: 9485828
    Abstract: The current invention relates to a LED lamp (10) comprising at least one LED light source (103), at least one driver (101) for powering the LED light source (103), at least one input rectifier with a plurality of diodes for converting an AC current from mains into a DC current, providing electrical power to the driver (101), the LED lamp (10) further comprising a safety module comprising one first and one second modules (F1, F2) for protection against overcurrent and overheating of the EM ballast, the first module (F1) being put in series with the driver (101) and designed to interrupt current in case the driver fails when the LED lamp (10) is directly connected to the mains, and the second module (F2) being designed to interrupt current when at least one of the diodes of the input rectifier fails when the lamp is connected to the mains via an EM ballast.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: November 1, 2016
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Robertus Leonardus Tousain, Tian Xiang Wen, Haimin Tao
  • Patent number: 9468066
    Abstract: A photo sensor-integrated tubular light emitting apparatus includes a cylindrical cover unit, a light-emitting module and a pair of sockets. The cylindrical cover unit includes a heat dissipation member and a cover. The cover has light-transmittance and is combined with the heat dissipation member. The light-emitting module is disposed in the cylindrical cover unit and has a plurality of arrayed light-emitting devices therein. The pair of sockets is combined with ends of the cylindrical cover unit. A photo sensor module is disposed in one of the pair of sockets. A driving voltage applied to the light-emitting module is adjusted based on an amount of light sensed by the photo sensor module.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: October 11, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung-chul Park, Kyung-jin Jeon, Min-su Kim
  • Patent number: 9386663
    Abstract: A monitoring system and method can determine whether an ambient intensity surrounding a computer is suitable for a user when the user is working with the computer. The system and method can adjust the intensity of a light source in responds to the ambient intensity being unsuitable for the user.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: July 5, 2016
    Assignees: HONG FU JIN PRECISION INDUSTRY (WuHan) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Shao-Bo Zhang, Jian-Hung Hung
  • Patent number: 9224353
    Abstract: A liquid crystal monitor includes a first voltage conversion circuit (e.g. a DC/DC converter), which converts an external DC voltage into a first internal DC voltage supplied to CPU circuitry, and a second voltage conversion circuit, which converts the external DC voltage into a second internal DC voltage for driving a backlight of a liquid crystal panel. The external DC voltage is set proximate to a center value between the first internal DC voltage and the second internal DC voltage. This allows the liquid crystal monitor to be equipped with a battery unit producing a single external DC voltage, thus reducing weight compared to a conventional liquid crystal monitor.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: December 29, 2015
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventors: Hiroyuki Kasuga, Takuya Nakazawa
  • Patent number: 9226357
    Abstract: A power supply device according to one embodiment is configured to control a lighting of semiconductor light-emitting elements, wherein a dimming signal is canceled during a predetermined time period (T) from a timing immediately after power-ON, so as to light on light-emitting diodes to have a predetermined light amount, for example, a minimum light amount. After an elapse of the predetermined time period (T), cancellation of the dimming signal is released to light on the light-emitting diodes to have a light amount instructed by the dimming signal.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 29, 2015
    Assignees: Toshiba Lighting & Technology Corporation, Kabushiki Kaisha Toshiba
    Inventors: Hirokazu Otake, Takuro Hiramatsu, Mitsuhiko Nishiie
  • Patent number: 9167642
    Abstract: An LED lighting device includes: a resistor R1 configured to output a detection value of an inductor current I1 flowing through an inductor L1 during an ON period of a switching element Q1; a threshold generation section 42 configured to generate a threshold value Vs of the inductor current I1 corresponding to a dimming level; and a switching control section 44 configured to control the switching element Q1 to turn on and off. The switching control section 44 is configured to determine an OFF timing of the switching element Q1 based on comparison between the detection value and the threshold value Vs of the inductor current I1. The LED lighting device increases a period of a switching cycle of the switching element Q1 with decrease of the dimming level.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: October 20, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yuji Yoshimoto, Katsunobu Hamamoto, Hiroyuki Asano, Masafumi Yamamoto
  • Patent number: 9076980
    Abstract: An organic light-emitting display apparatus includes a thin film transistor including an active layer, a gate electrode, a source electrode, and a drain electrode, an organic light-emitting device including a pixel electrode connected to the thin film transistor, an intermediate layer including a light-emitting layer, and an opposed electrode, and a first wiring and a second wiring arranged in different layers on a substrate.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: July 7, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki-Nyeng Kang, Na-Young Kim, Keum-Nam Kim, Beohm-Rock Choi, Soo-Beom Jo, Kie-Hyun Nam, Young-Min Kim
  • Patent number: 9072144
    Abstract: A control device adapted to control a first light-emitting diode and a second light-emitting diode, includes a first logic operation unit receiving a first enable signal and a second enable signal to generate a first logic signal, a second logic operation unit receiving the first and second enable signals to generate a second logic signal, a first adjustment unit generating a first adjustment signal according to the first logic signal, a second adjustment unit generating a second adjustment signal according to the second logic signal, a first control unit outputting a first control signal to the first light-emitting diode according to the first enable signal and the first adjustment signal, and a second control unit outputting a second control signal to the second light-emitting diode according to the second enable signal and the second adjustment signal. The first logic signal and the second logic signal are complementary.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: June 30, 2015
    Assignees: INVENTEC (PUDONG) TECHNOLOGY CORPORATION, INVENTEC CORPORATION
    Inventors: Sheng-Yuan Tsai, Chin-Hsien Yeh
  • Patent number: 9035557
    Abstract: A converting controller comprises a power pin, a ground pin, at least one input pin, at least one output pin, at least one set pin and a failure generating circuit. The power pin is adapted to be coupled with a power source to receive electric power for operation, and the ground pin is adapted to be grounded. The input pin is adapted to receive a corresponding input signal and the output pin is used to output a corresponding output signal. The set pin is adapted to set a corresponding operating parameter of the converting controller. The failure generating circuit is coupled with and uses one of the input pin and the set pin as a protection output pin. The failure generating circuit modulates the level of the protection output pin to be a protection logic level when the converting controller is under a protection state.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: May 19, 2015
    Assignee: GREEN SOLUTION TECHNOLOGY CO., LTD.
    Inventors: Shian-Sung Shiu, Li-Min Lee, Chung-Che Yu
  • Patent number: 9006974
    Abstract: A switching power supply apparatus according to an embodiment includes a switching element, an inductor, a drive circuit, a mounting substrate, and an insulating substrate. The switching element is connected between a power supply and a lighting load. The inductor is connected in series to the switching element. The drive circuit controls the switching element, converts a voltage supplied from the power supply, and is mounted on the mounting substrate. The insulating substrate is thermally connected to the switching element, and has thermal conductivity higher than the mounting substrate.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: April 14, 2015
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Noriyuki Kitamura, Yuji Takahashi, Hitoshi Kawano, Masatoshi Kumagai, Yosuke Saito
  • Patent number: 9006973
    Abstract: A light emitting device includes: a substrate having opposed first and second main faces; a light emitting element mounted on the first main face of the substrate; and a driver integrated circuit (IC) formed in an area corresponding to a lower side of the light emitting element within the substrate, and adjusting the amount of current applied to the light emitting element. Since the circuit provided to drive a light emitting diode (LED) is integrated within the substrate, a compact light emitting device having an integrated structure can be obtained.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: April 14, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ho Young Song
  • Patent number: 8994269
    Abstract: A lamp includes a single string of light emitting diodes (LEDs), driven in common, configured to cause the lamp to emit a visible light output via a bulb. The lamp also includes a lighting industry standard lamp base, which has connectors arranged in a standard three-way lamp configuration, for providing electricity from a three-way lamp socket. Circuitry connected to receive electricity from the connectors of the lamp base as standard three-way control setting inputs drives the string of LEDs. The circuitry is configured to detect the standard three-way control setting inputs and to adjust the common drive to the string of LEDs to selectively produce a different visible light outputs of the lamp via the bulb responsive to the three-way control setting inputs. The lamp may also include nanophosphors pumped by emissions of the LEDs, so that the lamp produces a white light output of particularly desirable characteristics.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: March 31, 2015
    Assignee: Abl IP Holding LLC
    Inventors: David P. Ramer, Jack C. Rains, Jr.
  • Publication number: 20150084503
    Abstract: Embodiments of a plug-and-play control module for a LED lighting device are described. In one aspect, a plug-and-play control module for a LED lighting device includes a main body and a control module socket. The control module socket includes an AC socket and a DC socket. The main body includes a housing, a control unit, an input port and an output port. The control unit resides inside the housing. A portion of the input port and a portion of the output port protrude outside the housing and connect to the control module socket. The control unit controls an output current flowing through the output socket and thus the on/off of the LED lighting device.
    Type: Application
    Filed: January 2, 2014
    Publication date: March 26, 2015
    Applicant: Lightel Technologies, Inc.
    Inventors: Wei Liu, Chia-Yiu Maa, Pai-Sheng Shen
  • Publication number: 20150054403
    Abstract: A lighting device may be provided that includes: a heat sink which includes a top surface and a member which has a side and is disposed on the top surface; a light source which includes a substrate disposed on the side of the member and light emitting devices disposed on the substrate, and has a reference point; and a cover which is coupled to the heat sink and includes an upper portion and a lower portion, which are divided by an imaginary plane passing through the reference point and being parallel with the top surface of the heat sink, wherein a distance from the reference point of the light source to the upper portion of the cover is larger than a distance from the reference point of the light source to the lower portion of the cover.
    Type: Application
    Filed: November 4, 2014
    Publication date: February 26, 2015
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Chul Ho JANG, Bo Hee KANG, Ki Hyun KIM
  • Patent number: 8939604
    Abstract: A LED based lighting apparatus is disclosed. The light engine used in the lighting apparatus may use a multi-layer metal core printed circuit board and have a plurality of LED groups that are independently controllable by a control unit. The power supply input and return paths connected to each LED group may be implemented on different layers to allow a compact footprint that may be used with traditional fluorescent encasements with relatively little modification.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: January 27, 2015
    Assignee: Arkalumen Inc.
    Inventor: Gerald Edward Briggs
  • Publication number: 20150015142
    Abstract: An LED light bulb has a lamp base for a lamp socket, a heat sink, and a globe. Within the globe on the heat sink is a printed circuit board having tabs or legs projecting from the circuit board. The tabs or legs have one or more LEDs mounted thereon and are angled relative to the circuit board so as to be directed away from the axis of the light bulb. the circuit board may either be ring-shaped with inwardly extending tabs, or may have outwardly extending tabs. Methods of making such LED light bulb and methods of distributing light from the LED light bulb, which involves directing light output by a plurality of LEDs in a plurality of radially outward directions relative to an axis of the light bulb, are also disclosed herein.
    Type: Application
    Filed: July 11, 2013
    Publication date: January 15, 2015
    Applicant: Huizhou Light Engine Limited
    Inventors: Tin Po Flavio Chu, Kam Wah Siu, Vincent Tsz Yeung Li, Wa Hing Leung
  • Publication number: 20140354150
    Abstract: System, methods, and apparatus, including devices and software, for providing self-adjusting light sources. In one aspect, a lighting unit includes one or more LEDs and an ambient light sensor. The light sensor measures ambient light in synchronization with intermittent off periods of light generated by the LEDs. For example, the LEDs in the lighting unit can be driven by a pulse width modulated signal that turns on and off the LEDs in an alternating manner, and the ambient light can be measured when the LEDs are turned off. In some implementations, a compact lighting unit, such as a light bulb, is provided that can be easily attached to standard light fixtures and can efficiently control its own brightness based on ambient light conditions.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 4, 2014
    Applicant: Smart Fos, Inc.
    Inventors: Neil Joseph, Jovi Gacusan
  • Patent number: 8884533
    Abstract: The present application discloses a light emitting diode lighting device and a light emitting diode lamp, the light emitting diode lighting device includes: a fluorescent lamp ballast outputting an alternating current; and at least one first light emitting diode lamp coupled with the fluorescent lamp ballast, and comprising a rectifying and filtering circuit and at least one light emitting diode string coupled with the rectifying and filtering circuit. The present application directly replaces a conventional fluorescent lamp tube with a properly designed LED lamp without any other modifications when reinstallation a conventional fluorescent lamp lighting device into a light emitting diode lighting device, which may reduce the cost of reinstallation, and greatly facilitate the user.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: November 11, 2014
    Assignee: Delta Electronics (Shanghai) Co., Ltd.
    Inventors: Weiqiang Zhang, Lizhi Xu, Jianping Ying
  • Publication number: 20140320007
    Abstract: An AC/DC power converter is coupled between a fluorescent ballast circuit and a set of light emitting diodes (LEDs) forming an LED lamp. The power converter converts an AC output from the ballast circuit to a DC current applied to drive operation of the LEDs. The power converter transforms and rectifies the AC output from the ballast circuit to generate a DC output current. An open load protection circuit is coupled to protect the ballast circuit when the LED lamp is not connected. Current control is provided by a transistor having a source/drain conduction path coupled to shunt the DC output current in response to a control signal having a duty cycle generated as a function of a zero-crossing of the AC output and a sensed value of the DC output current applied to the LED lamp.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 30, 2014
    Applicant: STMicroelectronics, Inc.
    Inventors: Thomas Stamm, Jianwen Shao
  • Publication number: 20140320009
    Abstract: A processor controlled induction RF fluorescent lamp, where the processor controls a dimming function, the lamp comprising a bulbous vitreous portion of the induction RF fluorescent lamp comprising a vitreous envelope filled with a working gas mixture; a power coupler comprising at least one winding of an electrical conductor; and an electronic ballast, wherein the electronic ballast provides appropriate voltage and current to the power coupler.
    Type: Application
    Filed: July 14, 2014
    Publication date: October 30, 2014
    Inventors: John R. Goscha, Victor D. Roberts