Automatic Regulation Patents (Class 315/297)
  • Patent number: 11071182
    Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to adjust device control information. The example apparatus comprises a light drive waveform generator to obtain metadata corresponding to media and generate device control information based on the metadata, the device control information to inform a lighting device to enable consecutive light pulses; an effect engine to apply an attack parameter and a decay parameter to consecutive light pulses corresponding to the device control information, the attack parameter and the decay parameter based on the metadata to affect a shape of the consecutive light pulses; and a color timeline generator to generate color information based on the metadata, the color information to inform the lighting device to change a color state.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: July 20, 2021
    Assignee: GRACENOTE, INC.
    Inventors: Markus Kurt Cremer, Robert Coover, Zafar Rafii, Aneesh Vartakavi, Andreas Schmidt, Todd Hodges
  • Patent number: 11051384
    Abstract: This disclosure is directed to circuits for controlling voltage from a voltage source to one or more light emitting diodes. The circuit includes a first transistor comprising a power switch that is configured to define a load current path from the voltage source to the one or more light emitting diodes. The circuit also includes a second transistor, which can be controlled based on the light emitting diodes, wherein the second transistor is configured to turn off when one or more of the lights emitting diodes exhibit an electoral short. The first transistor is configured to turn off in response to the second transistor turning off so as to provide short circuit protection for the circuit.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: June 29, 2021
    Assignee: Infineon Technologies AG
    Inventors: Fausto Borghetti, Hector Moreno
  • Patent number: 10985596
    Abstract: An LED security light includes a light emitting unit, at least one sensing unit, a loading and power control unit and a power supply unit configured with a first power source and a second power source, wherein a power level detector and a power switching circuitry are installed to select and connect at least one of the first power source and the second power source to the light emitting unit. The light emitting unit is activated at dusk and is deactivated at dawn. When the first power source is used, the LED security light generates a first level illumination. When the second power source is used, the LED security light generates a second level illumination. The first power source is a solar power while the second power source is a backup battery.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: April 20, 2021
    Assignee: Vaxcel International Co., Ltd.
    Inventor: Chia-Teh Chen
  • Patent number: 10986715
    Abstract: In driving a segmented LED loading, an alternating current (AC) voltage is rectified into a direct current (DC) voltage; the DC voltage is regulated into an input voltage and the input voltage is maintained higher than a lowest voltage used for lighting at least one LED segment of the segmented LED loading; the input voltage and a current flowing through the segmented LED loading is detected to generate a switch control signal and a current control signal; respective operation states of each of a plurality of switches of a LED segment switch module are controlled by the switch control signal to control each LED segment of the segmented LED loading as power-supply state or no-power-supply state; and the current of the segmented LED loading is regulated based on the current control signal.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: April 20, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ching-Ran Lee, Chi-Chun Huang, Che-Min Kung, Wen-Tien Tsai, Yu-Jen Chen
  • Patent number: 10973096
    Abstract: System and method for providing at least an output current to one or more light emitting diodes. The system includes a control component configured to receive at least a demagnetization signal, a sensed signal and a reference signal and to generate a control signal based on at least information associated with the demagnetization signal, the sensed signal and the reference signal, and a logic and driving component configured to receive at least the control signal and output a drive signal to a switch based on at least information associated with the control signal. The switch is connected to a first diode terminal of a diode and a first inductor terminal of an inductor. The diode further includes a second diode terminal, and the inductor further includes a second inductor terminal.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: April 6, 2021
    Assignee: On-Bright Electronics (Shanghai) Co., Ltd.
    Inventors: Lieyi Fang, Jun Zhou
  • Patent number: 10966296
    Abstract: An LED controller is used with a video source and at least one LED unit, and includes a control signal generator and a driver. The control signal generator performs pulse width modulation based on a first clock signal, a second clock signal and a data signal, which is generated by the video source, to generate at least one control signal. The first and second clock signals are independent of a vertical synchronization signal that is generated by the video source. The driver generates, based on the at least one control signal, at least one drive signal that is related to light emission of the at least one LED unit.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: March 30, 2021
    Assignee: NOVATEK MICROELECTRONICS CORP
    Inventors: Wei-Jen Lai, Neng-Chieh Hsu, Zhen-Guo Ding, Kang-Fan Yeh
  • Patent number: 10941911
    Abstract: Systems and methods for an adaptive power drive in an illumination system are disclosed herein. An example method includes (1) analyzing, by one or more processors data in a memory to determine a configuration of one or more LEDs; (2) obtaining, by one or more processors, illumination control instructions for operating the one or more LEDs during one or more illumination cycles; (3) controlling, by one or more processors, one or more switches of an illumination unit in accordance with illumination control instructions; (4) determining, by one or more processors, a current requirement for operating the one or more LEDs in accordance with the illumination control instructions; and (5) setting, by one or more processors, a current control set point of an LED driver to the current requirement.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: March 9, 2021
    Assignee: Zebra Technologies Corporation
    Inventors: Joseph S. Slowik, Christopher P. Klicpera
  • Patent number: 10919438
    Abstract: A vehicle lamp system includes an imaging unit, a luminance analysis unit, an illuminance setting unit, a light source unit and a light source control unit. The light source control unit controls the light source unit to periodically form a reference light distribution pattern including at least a part of a fixed illuminance area which does not depend on the illuminance value determined by the illuminance setting unit. The illuminance setting unit determines the illuminance value based on a reference detection result including the detection result of the luminance analysis unit obtained under the formation of the reference light distribution pattern, and updates the illuminance value when the new reference detection result is obtained.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: February 16, 2021
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Takehito Iriba
  • Patent number: 10897196
    Abstract: An arrangement involving printed conductive traces includes at least a voltage source (Vsupply) and at least one target component, preferably a light-emitting component such as an LED. The arrangement is adapted to produce a current-controlled voltage (VOUT2, Vout) originating from the voltage source, the current-controlled voltage being coupled to the at least one target component, wherein said voltage is dependent on the current (IR,LED, ILED) that is being passed through the target component and said voltage is adaptable to a varying resistance of the arrangement and its features.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: January 19, 2021
    Assignee: TACTOTEK OY
    Inventors: Miikka Kärnä, Tuomas Heikkilä
  • Patent number: 10881356
    Abstract: A mood monitoring device, system and method are provided. The mood monitoring device includes one or more processors; and a storage. The storage stores one or more programs which are configured to be executed by the one or plurality of processors. The one or more programs comprise instructions for performing the following operations: receiving a status message that is sent by a terminal and indicates a mood status of a user, the terminal and the mood monitoring device having a binding relationship; and presenting a message that reflects the mood status of the user in accordance with the status message.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: January 5, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zijun Liu, Honglei Zhang
  • Patent number: 10879480
    Abstract: Disclosed is a light emitting display apparatus which sets black image data, corresponding to a black image displayed after a normal image is displayed, for each pixel in one frame period on the basis of a characteristic of a light emitting display panel.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: December 29, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Joosung Shim, MooKyoung Hong
  • Patent number: 10874007
    Abstract: A lighting device for interior spaces or rooms is provided. The lighting device has a plurality of lighting units that are individually calibrated. Further, the lighting device has a regulating device, which, based on corrected color and/or intensity values, forms a control value with which light sources of the lighting units are actuated in order to achieve a specified color and/or intensity value.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: December 22, 2020
    Assignee: SCHOTT AG
    Inventors: Bernd Wölfing, Oliver Keiper, Sandra Mattheis, Andreas Schneider, Marc Timon Sprzagala, Andreas Dietrich, Thomas Reichert, Sebastian Biel
  • Patent number: 10869369
    Abstract: A LED driving circuit includes a power factor correction circuit receiving a rectified mains voltage and providing output to a DC voltage bus, a string of LEDs connected in series, a voltage converter receiving input from the DC voltage bus and providing output to the string of LEDs, and a microcontroller. The microcontroller receives a plurality of digital feedback signals from the voltage converter, controls the voltage converter based upon a user desired brightness level and the plurality of digital feedback signals, and receive a plurality of feedback signals from the power factor correction circuit. Based on the plurality of feedback signals, the microcontroller operates the power factor correction circuit in transition mode where the user desired brightness level is above a threshold brightness, and operates the power factor correction circuit in discontinuous mode where the user desired brightness level is below the threshold brightness.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: December 15, 2020
    Assignee: STMicroelectronics International N.V.
    Inventor: Akshat Jain
  • Patent number: 10856386
    Abstract: A LED driver circuit includes a first voltage drop module, a constant current driving module, a second voltage drop module, a DIP switch module, an auxiliary winding module, a control module and a loading module. The loading module is driven by converting a direct current voltage. The converted direct current voltage is additionally bucked to generate an optimized voltage that powers the DIP switch module and the control module. The DIP switch module selects a level of a predetermined current and in turn outputs an electrical signal to the control module. Therefore, the control module outputs a corresponding pulse signal for regulating a current passing through the loading module. Meanwhile, the control module calculates a required voltage level for driving. And the control module compares the required voltage level with an actual voltage value output by the auxiliary winding module and then determines the working status of the loading module.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: December 1, 2020
    Assignee: XIAMEN ECO LIGHTING CO. LTD.
    Inventors: Shuisheng Wen, Liping Lin
  • Patent number: 10820389
    Abstract: An analogue dimmer driver for driving an LED lighting element (54) to generate coded light comprises an output component (54) which provides a primary current (ipr), a capacitor (53) connected to the output component, a switch (S1) via which the lighting element is connectable to the current source in parallel with the capacitor. Switching is performed by periodically opening and closing the switch to code information into light generated by the lighting element. The output component has an input configured to receive a dimming signal. Responsive to a change in the dimming signal: i) the primary current is increased so as to increase the average power of the generated light and ii) the duty cycle of the switching is increased by an amount sufficient to prevent the peak level of the current though the lighting element when the switch is closed (ipr+idis) from exceeding a predetermined level (inom).
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: October 27, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Martinus Wilhelmus Blum, Theo Gerrit Zijlman
  • Patent number: 10819219
    Abstract: Disclosed is a semiconductor device for switching power supply control including: a high voltage input starting terminal; a discharger; and an input state detection circuit that includes: a voltage divider; a peak hold circuit; a first comparator which detects generation of a plug removal state; a second comparator which detects generation of a brownout state; a timer circuit; and a control signal generation circuit which generates a signal to turn on the discharger or a signal to stop outputting of a switching control signal, Td1, Td2 and Td3 are set to have a relationship of Td1<Td2<Td3, Td1 being a delay time until the capacitor is discharged, Td2 being a delay time for determining the plug removal state, and Td3 being a delay time for determining the brownout state, and at least the delay time Td2 and the delay time Td3 are measured by a common timer circuit.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: October 27, 2020
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Hiroki Matsuda, Satoshi Arima
  • Patent number: 10806000
    Abstract: A device includes an analog current division circuit configured to divide an input current into a first current and a second current, and a multiplexer array including a plurality of switches to provide the first current to a first of three colors of LEDs and the second current to a second of three colors of LEDs simultaneously during a first portion of a period, the first current to the second of three colors of LEDs and the second current to a third of three colors of LEDs simultaneously during a second portion of the period, and the first current to the first of three colors of LEDs and the second current to the third of three colors of LEDs simultaneously during a third portion of the period.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: October 13, 2020
    Assignee: Lumileds Holding B.V.
    Inventors: Yifeng Qiu, John Grant
  • Patent number: 10779373
    Abstract: Systems and methods are provided herein for current regulation. An example system controller includes: a first controller terminal configured to receive an input voltage, the first controller terminal being further configured to allow a first current flowing into the system controller based at least in part on the input voltage in response to one or more switches being closed; a second controller terminal configured to allow the first current to flow out of the system controller through the second controller terminal in response to the one or more switches being closed; a fourth controller terminal coupled to the third controller terminal through a first capacitor, the first capacitor not being any part of the system controller; and an error amplifier configured to generate a compensation signal based at least in part on the current sensing signal, the error amplifier including a second capacitor.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: September 15, 2020
    Assignee: On-Bright Electronics (Shanghai) Co., Ltd.
    Inventors: Meng Li, Mingli Kang, Liqiang Zhu, Lieyi Fang
  • Patent number: 10779371
    Abstract: The present disclosure provides methods for generating tunable white light. The methods include using a plurality of LED strings to generate light with color points that fall within white, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: September 15, 2020
    Assignee: Ecosense Lighting Inc.
    Inventors: Raghuram L. V. Petluri, Paul Kenneth Pickard
  • Patent number: 10764985
    Abstract: This invention discloses a drive circuit for transmitting data signals on power wire, and such drive circuit comprises: a DC power module, a switching circuit module, a voltage division clamping circuit, a receiving module and a control circuit module; after the switching circuit module and the voltage division clamping circuit module are connected in parallel, one end of them is connected to one end of receiving module, and the other end is connected to one end of DC power module; the other end of receiving module is connected to the other end of DC power module; the control circuit module is connected to the switching circuit module, and controls the conduction and disconnection of switching circuit module; when the switching circuit module is conducted, the DC power module will apply a high voltage to the receiving module through the switching circuit module, and when the switching circuit module is disconnected, the DC power module will apply a low voltage to the receiving module through the voltage divis
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: September 1, 2020
    Assignee: DONGGUAN CITY MINLEON ELECTRONICS CO., LTD.
    Inventors: Hao Lin, Lisheng Chen, Fengcheng Lin, Bai Lin
  • Patent number: 10757783
    Abstract: The purposes of the devices described herein are to provide an LED lighting device capable of efficiently and economically emitting light having a selectable color temperature or a warm-on-dim feature when driven with AC power and to provide LED lighting devices which have an improved power factor and a reduced total harmonic distortion when powered with AC power.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: August 25, 2020
    Assignee: Lynk Labs, Inc.
    Inventors: Michael Miskin, Robert L. Kottritsch
  • Patent number: 10750590
    Abstract: The present disclosure provides systems for generating tunable white light. The systems include a plurality of LED strings that generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: August 18, 2020
    Assignee: EcoSense Lighting, Inc.
    Inventors: Raghuram L. V. Petluri, Paul Kenneth Pickard
  • Patent number: 10750591
    Abstract: The present disclosure provides methods for generating tunable white light with controllable circadian energy performance. The methods use a plurality of LED strings to generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output. Different light emitting modes can be selected that utilize different combinations of the plurality of LED strings in order to tune the generated white light.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: August 18, 2020
    Assignee: EcoSense Lighting, Inc.
    Inventors: Raghuram L. V. Petluri, Paul Kenneth Pickard
  • Patent number: 10742510
    Abstract: The present invention provides a method for commissioning of nodes of a network. The method comprises the steps of (S10) receiving, at a first node (30a) of the network, at least one indication message including identification information of a second node (30b) of the network; (S20) receiving, at the first node (30a), parameter information indicating a parameter sensed with at least one parameter sensor associated with the first node (30a); (S30) determining whether the at least one indication message and the parameter information temporarily correlate; and (S40), if a correlation is determined, adding correlation information about the second node (30b) to a register table of the first node (30a).
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: August 11, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Engel Johannes Knibbe, Cornelis Antonius Verbakel, Eric Johannes Hendricus Cornelius Maria Nieuwlands
  • Patent number: 10728986
    Abstract: A low-voltage alternating current-based LED light with built-in cooling and automatic or manual dimming. As it is self-cooled with fan failure protection, the light can be safely run in conditions that are near-hostile to its operation, with little possibility of damage. The light is movable along the XY axes of a grid system and can be either fixed in position in the Z axis or can be movable up and down the Z axis. The light can be equipped with either manual dimming using a standard potentiometer, or with automatic dimming via sensors and local network connectivity. The device prevents line-voltage electric shocks as the input voltage is low-voltage AC; in embodiments, about the same voltage as a doorbell, and the input current is 3 A. The device is also self-cooled, and will shut down if its fan is not running so as to prevent thermal overloads.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: July 28, 2020
    Inventor: Yvette Seifert Hirth
  • Patent number: 10728983
    Abstract: Systems and methods are provided herein for current regulation. An example system controller includes: a first controller terminal configured to receive an input voltage, the first controller terminal being further configured to allow a first current flowing into the system controller based at least in part on the input voltage in response to one or more switches being closed; a second controller terminal configured to allow the first current to flow out of the system controller through the second controller terminal in response to the one or more switches being closed; a fourth controller terminal coupled to the third controller terminal through a first capacitor, the first capacitor not being any part of the system controller; and an error amplifier configured to generate a compensation signal based at least in part on the current sensing signal, the error amplifier including a second capacitor.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: July 28, 2020
    Assignee: On-Bright Electronics (Shanghai) Co., Ltd.
    Inventors: Meng Li, Mingli Kang, Liqiang Zhu, Lieyi Fang
  • Patent number: 10721802
    Abstract: The present disclosure provides systems for generating tunable white light. The systems include a plurality of LED strings that generate light with color points that fall within red, blue, and green color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output. The systems can include an additional LED string configured for functional applications that includes a type of LED selected from 380-420 nm violet saturated LEDs, 200-280 nm UVC saturated LEDs, 850-940 nm near-IR saturated LEDs, 580-620 nm amber-orange/red saturated LEDs, and 460-490 nm long-blue saturated LEDs.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: July 21, 2020
    Assignee: EcoSense Lighting Inc.
    Inventors: Raghuram L.V. Petluri, Paul Kenneth Pickard, Ihor Lys, Benjamin Harrison
  • Patent number: 10716182
    Abstract: The present disclosure provides methods for generating tunable white light. The methods include using a plurality of LED strings to generate light with color points that fall within white, red, and yellow/green color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: July 14, 2020
    Assignee: Ecosense Lighting Inc.
    Inventors: Raghuram L. V. Petluri, Paul Kenneth Pickard
  • Patent number: 10716184
    Abstract: The present invention discloses an LED lamp tube, comprising a driving circuit controlled by a switch when used, the driving circuit comprises: a dimming controller having a switch state monitoring port and a power supply port, and the power supply voltage is gradually formed after the switch is disconnected. When the switch is turned on again, if the supply voltage is between the first set value and the second set value, the output of the drive signal is the same as the signal when the switch is turned off, so that the current flowing through the LED light source remains unchanged. If the supply voltage is lower than the second set value, it outputs a dynamically changing driving signal, so that the current flowing through the LED light source gradually changes from the first extreme value to the second extreme value; and the power conversion unit is configured to receive the drive signal and provide energy to the LED light source.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: July 14, 2020
    Assignee: CH LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Jizhong Pu, Caiying Gan, Shengjun Cao
  • Patent number: 10708993
    Abstract: A driver comprises a front-end stage, a back-end stage, and an intermediate controller. The front-end stage comprises a front-end main circuit and a front-end controller, and is configured to rectify an AC input voltage from an external power supply and output a DC bus voltage through output terminals. The back-end stage comprises a buck circuit, and configured to receive the bus voltage from the front-end stage and output a desired DC drive voltage to a load according to an operating voltage of the load. The intermediate controller is configured to obtain a difference voltage signal indicative of an electric potential difference between the bus voltage and the drive voltage, and provide a feedback signal generated based on the difference voltage signal to the front-end controller. The front-end controller controls the front-end main circuit based on the feedback signal to change the bus voltage with change of the drive voltage.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: July 7, 2020
    Assignee: CURRENT LIGHTING SOLUTIONS, LLC
    Inventors: Longyu Chen, Hongbin Wei
  • Patent number: 10701775
    Abstract: The present disclosure provides methods for generating tunable white light with controllable circadian energy performance. The methods use a plurality of LED strings to generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output. Different light emitting modes can be selected that utilize different combinations of the plurality of LED strings in order to tune the generated white light.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: June 30, 2020
    Assignee: EcoSense Lighting, Inc.
    Inventors: Raghuram L. V Petluri, Paul Kenneth Pickard
  • Patent number: 10697595
    Abstract: The present disclosure provides methods for generating white light. The methods use a plurality of LED strings to generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: June 30, 2020
    Assignee: EcoSense Lighting, Inc.
    Inventors: Raghuram L. V. Petluri, Paul Kenneth Pickard
  • Patent number: 10694593
    Abstract: A voltage control system for an LED operates to dynamically determine and set a minimum permissible voltage on an energy storage device such as a capacitor such that the energy storage device operates at a minimum possible voltage to compensate for component variations and dimming signal variations while maintaining flicker-free operation of the LED.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: June 23, 2020
    Assignee: ECOSENSE LIGHTING, INC.
    Inventor: Laszlo Takacs
  • Patent number: 10676212
    Abstract: An emergency lighting system (ELS) for an aircraft has a capacitor, at least one of an onboard power system and a ground power unit configured to charge the capacitor, and a light emitting diode (LED) selectively powered by the capacitor.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: June 9, 2020
    Inventor: Erik John Oltheten
  • Patent number: 10674577
    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) P(?)/B(?)?1.8.??(2) 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: June 18, 2019
    Date of Patent: June 2, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.
    Inventors: Masahiko Yamakawa, Noriaki Yagi, Kumpei Kobayashi
  • Patent number: 10624182
    Abstract: A modular lighting system includes a number of LEDs, a communication module, a driver module, an auxiliary module, and a communication bus. The communication module includes a first port. The driver module includes a second port, rectifying circuitry, and conversion circuitry. The driver module drives the LEDs at the second port in response to information received at the second port. The rectifying circuitry and conversion circuitry convert an AC input signal into a DC power signal that is provided at the second port. The auxiliary module has a third port. The communication module, the driver module, and the auxiliary module are associated with the communication bus such that the driver module supplies DC power over the communication bus and the communication bus provides bi-directional communication.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: April 14, 2020
    Assignee: IDEAL Industries Lighting LLC
    Inventor: Michael James Harris
  • Patent number: 10621924
    Abstract: The invention provides a display panel driving circuit and a method for capturing error information thereof. The display panel driving circuit includes a driving circuit, a pixel circuit and a timing controller circuit. The method includes: obtaining LED error information indicating errors caused by an LED of the pixel circuit; driving the LED by the drive circuit to obtain LED and driving circuit error information; obtaining driving circuit error information according to the two error information. The timing controller circuit records the error information and compensates LED attenuation by using the error information.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: April 14, 2020
    Assignee: Novatek Microelectronics Corp.
    Inventors: Hua-Gang Chang, Kuei-Chung Chang
  • Patent number: 10598362
    Abstract: An LED lamp with built-in power supply includes housing provided with a driving power supply; and an LED lamp holder assembly fixedly connected to the outside of the housing and connected to the driving power supply by wires. The housing is provided with a wire slot, and wires connecting the driving power supply can be drawn out from the wire slot and housed in the wire slot, and then connected to the LED lamp holder assembly. The lamp structure sets the driving power supply and LED lamp panel in two separate cavities to avoid the LED lamp panel being in high temperature environment for a long time and extend its service life; the housing is provided with a wire slot, the wire slot can accommodate the wires connecting the driving power supply and the LED lamp panel.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: March 24, 2020
    Assignee: Self Electronics Co., Ltd.
    Inventors: Yuanfang Xue, Zhaoyong Zheng
  • Patent number: 10588993
    Abstract: A luminaire for disinfecting a target surface includes a disinfecting light source, a non-disinfecting light source, a beam angle adjustor, a motion sensor, and a distance sensor. The radiance of the disinfecting light is calculated based on detected distance to a target surface and beam angle, and may be selected to achieve a predetermined irradiance of the target surface. If no motion is detected by the motion sensor then the disinfecting light source is set to ON and the non-disinfecting light source is set to OFF. If motion is detected and a beam intercept is not detected by the distance sensor then the disinfecting light source is set to DIM and the non-disinfecting light source is set to ON. If motion is detected and a beam intercept is detected then the disinfecting light source is set to OFF and the non-disinfecting light source is set to ON.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: March 17, 2020
    Assignee: OSRAM SYLVANIA Inc.
    Inventor: Michael A. Quilici
  • Patent number: 10568182
    Abstract: A lighting device for notification and/or atmosphere creation is disclosed. The lighting device (100) comprises at least one light source (102) arranged for rendering a light output. The lighting device (100) further comprises a detector (104) arranged for detecting a first orientation of the lighting device (100) and a receiver (106) for receiving a first signal from a first device (110).
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: February 18, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Berent Willem Meerbeek, Bartel Marinus Van De Sluis
  • Patent number: 10560993
    Abstract: A dimming controller is coupled to receive an out-source current from a dimming interface for each LED driver connected thereto. Based on the out-source current received, the controller can estimate the number of connected LED drivers. When the LED driver(s) are determined to be on based on the received out-source current, the dimming controller generates and transmits a dimming control voltage. The dimming controller is programmable with relationships between the dimming control voltage and operational parameters for the certain type of LED driver and the certain type of LED load. The dimming controller then estimates the power characteristics (e.g., the input power and the output power) of the LED driver and associated LED load based on the programmed relationships. Power characteristics can accordingly be reported to the customer via a dimming controller without requiring specifically designed power measuring devices. Driver failure in the group can be reported in real time.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: February 11, 2020
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Wei Xiong, Theodore E. Kluska
  • Patent number: 10561002
    Abstract: Method for the operation and the expansion of a network of lights, each light in the network including a control module which is assigned to a group, each control module being in communication with a group controller as well as control modules in the same group. The network can be expanded by installing (19) new lights with their associated control modules, and each new control module scans (20) its environment and transmits environmental information to a central server where the environmental information is analysed and the new control modules are allocated (21) into groups. After allocation to a group in which control modules may be moved from one group to another or a new group is formed, the new control modules are available for normal operation. This process is repeated for each new light and associated control module.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: February 11, 2020
    Assignee: SCHREDER
    Inventors: Helmut Schröder, Daniel Brand, Didier Wellens
  • Patent number: 10548195
    Abstract: System and method for providing at least an output current to one or more light emitting diodes. The system includes a control component configured to receive at least a demagnetization signal, a sensed signal and a reference signal and to generate a control signal based on at least information associated with the demagnetization signal, the sensed signal and the reference signal, and a logic and driving component configured to receive at least the control signal and output a drive signal to a switch based on at least information associated with the control signal. The switch is connected to a first diode terminal of a diode and a first inductor terminal of an inductor. The diode further includes a second diode terminal, and the inductor further includes a second inductor terminal.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: January 28, 2020
    Assignee: On-Bright Electronics (Shanghai) Co., Ltd.
    Inventors: Lieyi Fang, Jun Zhou
  • Patent number: 10531534
    Abstract: A switched-mode control circuit for correlated color temperature (CCT) based on linear drive LED lighting, including a switched-mode CCT control module, a linear drive control module, and an LED lighting module which is connected with the switched-mode CCT control module and the linear drive module. The switched-mode CCT control module is used to control and adjust the CCT of the LED lighting module, so that the LED lighting module emits light with different CCTs, and it may or may not have a memory function. The linear drive control module is capable of controlling and adjusting illuminance of the LED lighting module. The control circuit has a simple design and enables the adjustment of both the CCT and the illuminance, promoting the user experience.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: January 7, 2020
    Assignee: Wuxi ORG Microelectronics Co., Ltd.
    Inventor: Zhicheng Zhou
  • Patent number: 10517156
    Abstract: A device includes an analog current division circuit configured to divide an input current into a first current and a second current, and a multiplexer array including a plurality of switches to provide the first current to a first of three colors of LEDs and the second current to a second of three colors of LEDs simultaneously during a first portion of a period, the first current to the second of three colors of LEDs and the second current to a third of three colors of LEDs simultaneously during a second portion of the period, and the first current to the first of three colors of LEDs and the second current to the third of three colors of LEDs simultaneously during a third portion of the period.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: December 24, 2019
    Assignee: Lumileds Holding B.V.
    Inventors: Yifeng Qiu, John Grant
  • Patent number: 10502389
    Abstract: According to one embodiment, a vehicle lighting device includes a socket; and a light-emitting module provided on one end side of the socket. The light-emitting module includes a substrate having a wiring pattern; a plurality of light-emitting elements that are electrically connected to the wiring pattern and are connected in series to each other; and a plurality of thermistors that are electrically connected to the wiring pattern and are connected in parallel to each other. The plurality of thermistors connected in parallel to each other being connected in series with the plurality of light-emitting elements connected in series to each other.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: December 10, 2019
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Ryuji Tsuchiya, Masamitsu Nagano
  • Patent number: 10495284
    Abstract: An embodiment provides a lens comprising: a lens body; and a cavity disposed in the lens body, wherein the outer surface of the lens body comprises a first side surface forming an acute angle with respect to the bottom surface and slopping toward a central axis thereof, an upper surface including a flat area, and an inflection part disposed between the side surface and the upper surface.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: December 3, 2019
    Assignee: LG Innotek Co., Ltd.
    Inventor: Ki Hyun Kim
  • Patent number: 10499479
    Abstract: In embodiments, a method and system is provided for streaming lighting effect data wirelessly to a peripheral input device in lighting effect arrays. A current lighting effect array is compared to a previous lighting effect array, and compression is applied to one or more zones of light emitters in the lighting effect array.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: December 3, 2019
    Assignee: Logitech Europe S.A.
    Inventors: Laurent Plancherel, David Tarongi Vanrell
  • Patent number: 10492257
    Abstract: A lighting device is configured to be connected to a power switch and supply a plurality of light-emitting elements with current and includes: a DC-power supply circuit configured to supply the plurality of light-emitting elements with the current when the power switch is turned on; a switching circuit for switching which light-emitting element or light-emitting elements among the plurality of light-emitting elements is supplied with the current; a detection circuit which detects current or voltage supplied from the DC-power supply circuit; and a control circuit which controls the switching circuit to switch which of the light-emitting element or light-emitting elements from among the plurality of light-emitting elements is supplied with the current, when the power switch is turned from on to off and back to on within a predefined period and the current or the voltage detected by the detection circuit is less than when the power switch is on.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: November 26, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Keisuke Seki
  • Patent number: 10485055
    Abstract: The present invention provides a lighting apparatus including a function configuration switch module and a control method therefor. The lighting apparatus may include: a lighting module; a lighting driving module for driving the lighting module; a communication module for performing data communication; a storage module for storing a program for controlling the lighting module, data generated by the program, and unique identification information of a lighting apparatus; a function configuration switch module for outputting a switching function selection signal to perform a bridge setting or releasing function; and a control module controlling the lighting driving module, and the communication module to transmit a signal for configuration or release of a bridge together with the unique identification information of the lighting apparatus.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: November 19, 2019
    Assignee: SAMJIN LND CO., LTD
    Inventor: Choong-Yong Sohn