Patents Examined by Minh D A
  • Patent number: 11229102
    Abstract: A lighting device includes light emitting element groups (HSB) including a light emitting element group (HS2) that emits light when being applied with a voltage at a light emission reference voltage (VH2), and a light emitting element group (HS12) that emits light when being applied with a light emission reference voltage (VH12) higher than the light emission reference voltage (VH2), the light emitting element groups (HSB) emitting light when being applied with a voltage equal to or higher than a light emission reference voltage (VHa); a semiconductor chip (IC1) including a light emission control unit (HC1) arranged to perform light emission control to cause light emission of a light emitting element group (HS) if a drive voltage (Vk) is higher than the light emission reference voltage (VHa), and to perform light emission stop control to stop the light emission if the drive voltage (Vk) is lower than the same; and a semiconductor chip (IC2) including a light emission control unit (HC2) arranged to perform lig
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: January 18, 2022
    Assignee: Rohm Co., Ltd.
    Inventors: Noboru Takizawa, Masaaki Nakayama
  • Patent number: 11221114
    Abstract: The present invention relates to the field of neon lights, and in particular to a high-voltage neon light string. The high-voltage neon light string of the present invention is formed by connecting a controller and a plurality of light bars end to end. The number of light bars connected is determined according to a user's needs, and it is convenient for assembly and disassembly. The user can control a transmitter by keys or wirelessly to send signals with different pulse widths to the light bars, and LED units on the light bars receive the input signals and then display different colors according to data of the signals.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: January 11, 2022
    Assignee: DONGGUAN GATEWAY PLASTIC AND HARDWARE LIGHTING CO., LTD.
    Inventor: James Lee
  • Patent number: 11206720
    Abstract: An LED light fixture, in the form of lamps or luminaires, is comprised on a plurality of LED lights producing bright white or warm light and a plurality of color LED lights producing light of a visibly different color. The fixture includes control circuitry for receiving an input voltage signal from a dimmer switch wherein when the dimmer switch reduces the input voltage to the LED light fixture within a top range setting of the dimmer switch, the brightness of the light is maintained while the color Kelvin temperature of the light spectrum is reduced. If the dimmer switch is increased in the top range, the color temperature increases. This is achieved by increasing the frequency of a reduced input voltage signal during a reduction of the dimmer switch in the top range thereof to supply full driver current to the white or warm light LED's while reducing the driver current to the color LED's.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: December 21, 2021
    Assignee: GLOBE ELECTRIC COMPANY INC.
    Inventors: Adam Chaimberg, Xianwen Xiong
  • Patent number: 11191143
    Abstract: The present invention relates to a driver system, comprising a counter unit, a buffer unit and a voltage regulation unit. The counter unit is adapted to sequentially activate one of the first output terminals upon receiving a driver signal and then output a control signal according to the driver signal. The buffer unit is adapted to output an isolated control signal upon receiving the control signal from the counter unit. Upon receiving the isolated control signal, the voltage regulation unit outputs a control voltage which corresponds to a given resistor provided therein. The control voltage is useful in driving an electronic device, and the operation of the electronic device may be further adjusted by changing the control voltage from one level to another.
    Type: Grant
    Filed: May 27, 2017
    Date of Patent: November 30, 2021
    Inventor: Yu-Lin Lee
  • Patent number: 11191138
    Abstract: Disclosed is a lighting control system that transmits lighting control signals digitally over a conductor which also provides power to the lights being controlled. The lighting control system includes a controller which transmits the control signals and one or more receivers that are associate with lights or other loads, the receivers receiving the digital signals from the controller and causing the lights or other loads to perform the actions required by the control signals.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: November 30, 2021
    Assignee: Lumitec, LLC
    Inventors: John Alexander Kujawa, Michael John McDonald, Steven Marc Rotolante, Paul Stephan Abbott, Michael Albion Kestner, Christopher Robert Fulmer
  • Patent number: 11191136
    Abstract: An LED lighting apparatus is configured to light in response to an input power signal. The LED lighting apparatus includes a power supply module, configured to receive the input power signal in order to generate a driving power signal, and an LED module configured to light in response to the driving power signal. The power supply module comprises a demodulating circuit configured to receive the input power signal and demodulate the received input power signal, in order to generate a dimming control signal for controlling luminance of the LED module, wherein the demodulating circuit demodulates the input power signal based on a phase-cut angle of the input power signal.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: November 30, 2021
    Assignee: Jiaxing Super Lighting Electric Appliance Co., Ltd.
    Inventors: Aiming Xiong, Lin Zhou
  • Patent number: 11191139
    Abstract: An LED driver configured to power a plurality of LEDs having a different colour or colour spectrum is described, the LED driver comprising: a power converter configured to supply power to the plurality of LEDs and a control unit, the control unit comprising: an input terminal configured to receive an input signal representing a desired colour set-point; a processing unit configured to: determine a MacAdam ellipse for the desired colour set-point; determine a required intensity or current for each of the plurality of LEDs so as to achieve the desired colour set-point; determine a colour shift direction for the colour set-point, based on the determined required intensities or currents; select a modified colour set-point based on the colour shift direction and the MacAdam ellipse; determine a required supply current for each of the plurality of LEDs so as to achieve the modified colour set-point; determine a control signal for the power converter so as to generate the required supply currents; and wherein
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: November 30, 2021
    Assignee: eldoLAB Holding B.V.
    Inventor: Andy Johanna Elisabeth Otten
  • Patent number: 11191144
    Abstract: The disclosure relates to a light supplement device or module, and a light supplement control method, a terminal, and an apparatus for the light supplement module, and belongs to the technical field of electronic devices. The light supplement module includes a circuit substrate; n Light Emitting Diodes (LED) disposed in an array on the circuit substrate, n being an integer greater than 1, and there being at least two LEDs having different colors; and a light guiding layer disposed on an upper layer of the n LEDs, wherein the LEDs are color LEDs, or the n LEDs constitute a color LED group.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: November 30, 2021
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventors: Jianglin Gu, Jian Bai, Lin Chen, Shujun Wei, Chiafu Yen
  • Patent number: 11184966
    Abstract: An arrangement including a light-emitting diode array made up of light-emitting diodes, each light-emitting diode being switchable on and off with the aid of a controllable switch, and including a current source for supplying the light-emitting diode array with current. The arrangement including an interface, to which an input signal having image information for an image, which is displayable with the aid of the light-emitting diode array, may be applied, and the interface converting the input signal into digital signals in which information is contained for switching the controllable switches on and off. The arrangement including a counter, with the aid of which it is possible to detect how many switches are closed or are to be closed within a clock pulse. The current supplied by the current source is controllable as a function of the counter reading.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: November 23, 2021
    Assignee: Hella GmbH & Co. KGaA
    Inventor: Dieter Nietfeld
  • Patent number: 11183930
    Abstract: An optical communication system includes a light source and an output capacitor coupled to the light source. The system also includes a switching converter circuit coupled to the output capacitor. The switching converter circuit is configured to provide an output voltage to the output capacitor based on an active mode and a power-save mode. The switching converter circuit includes a controller configured to perform pulse gating in the power-save mode based on a timer and a comparison of the output voltage with a voltage threshold.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: November 23, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jian Liang, Wei Zhao, Weiwei Xiong
  • Patent number: 11160146
    Abstract: A lighting system includes lighting fixtures and a lighting controller that sends commands and data over an AC power line to power and control the lighting fixtures. Lighting themes are uniquely programmable color and intensity that are applied to a collection of lighting groups to achieve different lighting modes instantly, without the delay that programming each lighting fixture individually incurs. The groups of lighting modules receive theme lighting information over the power line and store the theme information in memory. The lighting controller sends a single command to the collections of the lighting groups to apply the theme. Each lighting module retrieves and applies the theme information.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: October 26, 2021
    Assignee: Hunter Industries, Inc.
    Inventors: John Malaugh, Peter John Woytowitz
  • Patent number: 11134551
    Abstract: LED light source, comprising a series connection of at least two LED strings, wherein each of the at least two LED strings corresponds to a single LED or comprises at least two LEDs, wherein at least one ohmic resistive element is connected in series with a first LED string of the at least two LED strings, and at least one switching element is connected in parallel to the series connection of the at least one ohmic resistive element and the first LED string, wherein the at least one switching element is configured to bypass in its conductive state the series connection of the at least one ohmic resistive element and the first LED string.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: September 28, 2021
    Assignee: TRIDONIC GMBH & CO KG
    Inventor: Istvan Bakk
  • Patent number: 11127266
    Abstract: A luminaire and network for use in assisting persons in a building comprising: at least one lighting module, at least one communications component, a controller, an uninterruptible power supply in or coupled to the luminaire to power the lighting module, communications component and/or controller in the absence of a regular (e.g. AC) power supply, wherein the controller: triggers the lighting module to illuminate upon an activation event, facilitates communication via the communications and/or facilitates positioning of persons (or their devices) using the communications component and/or other components.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: September 21, 2021
    Assignee: Indoorsights Limited
    Inventor: Paul Kim Chan
  • Patent number: 11120971
    Abstract: In one embodiment, the present disclosure is directed to a method for performing diagnostics on a matching network that utilizes an electronically variable capacitor (EVC). According to the method, all the discrete capacitors of the EVC are switched out. At a first node, a parameter associated with a current flowing between a power supply and one or more of the switches of the discrete capacitors is measured. The method then switches in, one at a time, each discrete capacitor of the EVC. Upon the switching in of each discrete capacitor, the method remeasures the parameter at the first node and determines whether a change to the parameter at the first node is within a predetermined range to determine whether the corresponding switch, driver circuit, or filter of the discrete capacitor most recently switch in has failed.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: September 14, 2021
    Inventors: Chingping Huang, Michael Gilliam Ulrich, Tomislav Lozic, Ronald Anthony Decker, Imran Ahmed Bhutta, Bala Kandampalayam
  • Patent number: 11116051
    Abstract: A dimming power supply device includes a case, a trigger input connector, a trigger input circuit, an FPGA writing enabling circuit, and a dimming FPGA. The trigger input circuit, the FPGA writing enabling circuit, and the dimming FPGA are disposed inside the case. A plurality of terminals are disposed in the trigger input connector. A signal input to at least one terminal of the plurality of terminals is input to the trigger input circuit. A signal input to the at least one terminal of the plurality of terminals is input to the FPGA writing enabling circuit. In an FPGA writing mode, a circuit configuration of the dimming FPGA is rewritten by inputting an output signal of the FPGA writing enabling circuit. In a dimming mode, a light source is dimmed by inputting an output signal of the trigger input circuit as a trigger.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: September 7, 2021
    Assignee: LEIMAC LTD.
    Inventors: Takayuki Shiihara, Masamitsu Takemori, Toshihiro Horiuchi
  • Patent number: 11114280
    Abstract: In one embodiment, the present disclosure is directed to a method of impedance matching where an RF source is providing at least two non-zero pulse levels. For each of the at least two pulse levels, at a regular time interval, a control unit determines a parameter-related value that is based on a parameter related to the load, and repeatedly detects which of the at least two non-zero pulse levels is being provided by the RF source. Upon detecting one of the at least two non-zero pulse levels, for the detected pulse level, the control unit measures the parameter related to the load to determine a measured parameter value, determines the parameter-related value based on the measured parameter value, and alters the at least one EVC to provide the match configuration, the match configuration based on the parameter-related value.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: September 7, 2021
    Inventors: Imran Ahmed Bhutta, Tomislav Lozic
  • Patent number: 11096254
    Abstract: A lighting device using multiple scattered light sources to change illumination angle and color temperature by adjusting light intensity includes a central light source portion, a peripheral light source portion and an optical lens on a lamp board. The optical lens covers the central and peripheral light source portions. The central light source portion has first cold LEDs and first warm LEDs equidistantly installed near a setting area of the lamp board. The peripheral light source portion has second cold LEDs and second warm LEDs installed within an area range that takes the setting center as center of circle and has a diameter of 6-8 mm. A controller is used to adjust a driving current intensity of the central and peripheral light source portion to adjust the illumination angle and color temperature of the lighting device, and the intensity performance or On/Off state of each LED can be controlled independently.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: August 17, 2021
    Inventors: Yung-Hong Wang, Chuan-Zhu Pan, Huai-Ling Liu, Yun Zhang, Shuai Li
  • Patent number: 11095028
    Abstract: A frequency tunable antenna includes a first substrate and a second substrate that are disposed opposite to each other, a second electrode disposed on a side of the second substrate close to the first substrate, a first electrode disposed on a side of the first substrate close to the second substrate, and a liquid crystal layer disposed between the second electrode and the first electrode. The second electrode and the first electrode are configured to adjust transmitting and receiving frequencies of the frequency tunable antenna by controlling an alignment manner of liquid crystals of the liquid crystal layer.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: August 17, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tienlun Ting, Guangkui Qin, Lei Wang, Ken Wen, Xiangzhong Kong
  • Patent number: 11094679
    Abstract: According to one embodiment, there is provided a white light source system. P(?), B(?) and V(?) satisfy an equation (1) below in a wavelength range of 380 nm to 780 nm. The white light source system satisfies an expression (2) below in a wavelength range of 400 nm to 495 nm: ?380780P(?)V(?)d?=?380780B(?)V(?)d???(1) where P(?) is a light emission spectrum of white light, B(?) is a light emission spectrum of blackbody radiation of a color temperature correspond to a color temperature of the white light, and V(?) is a spectrum of a spectral luminous efficiency.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: August 17, 2021
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.
    Inventors: Masahiko Yamakawa, Noriaki Yagi, Kumpei Kobayashi
  • Patent number: 11083060
    Abstract: A lighting apparatus including a controller, an LED driver, and an LED luminaire, in which the LED luminaire implements a color temperature from a minimum color temperature of 3,000K or less to a maximum color temperature of 5,000K or more, and the controller controls the LED driver to change the color temperature of the LED luminaire corresponding to change in color temperature of sunlight.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: August 3, 2021
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Jun Ho Song, BoYong Han