Automatic Regulation Patents (Class 315/297)
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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
  • Patent number: 10470266
    Abstract: An LED dimming load sudden change suppression circuit is applied to an LED dimming circuit. The LED dimming load sudden change suppression circuit includes a MOS transistor Q1, a sampling resistor R1, an error amplifier U1, and a DC-DC module U2, which can ensure that the total current of the LED dimming circuit is constant and avoid damage to LEDs.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: November 5, 2019
    Assignee: SI EN TECHNOLOGY (XIAMEN) LIMITED
    Inventors: Yunfeng Li, Liping Xiu
  • Patent number: 10462860
    Abstract: A controller for a switching regulator of a LED lighting system has a current monitor, a voltage divider, an integration circuit, and a comparator circuit. The current monitor is used to sense a LED current passing through a current sensing resistor of the switching regulator, and to generate a sensing current. The voltage divider is used to receive the sensing current to generate a first through third divided voltages, wherein the first divided voltage is larger than the second divided voltage, and the second divided voltage is larger than the third divided voltage. The integration circuit is used to compare the second divided voltage with a reference voltage, and to generate an integration voltage across a RC circuit thereof accordingly. The comparator circuit is used to compare the integration voltage with the first divided voltage and the third divided voltage, and to generate a driving signal.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: October 29, 2019
    Assignee: ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC.
    Inventor: Tung-Ming Yu
  • Patent number: 10459416
    Abstract: Power control for environmental control components (e.g. lighting, blinds, temperature) is controlled and distributed by a regulated power controller in accordance with user preferences and/or a schedule. The outputs of the regulated power controller include at least one regulator capable of a mixed mode output, operable in any of several output modes that can include DC regulation and pulse width modulation, as well as polarity inversion. The centralized control of electrical power facilitates the coordination of environmental control components for holistic control.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: October 29, 2019
    Inventor: Jose M. Fernandez
  • Patent number: 10462859
    Abstract: The invention relates to a clocked flyback converter circuit for directly operating lighting means comprising: a transformer (5), which has a primary winding (4), which is coupled to a controllable switch (7), and a secondary winding (6), to which the lighting means (11) can be coupled; a control unit (14) for controlling the switch (7); and means (8) for directly or indirectly sensing the current through the switch (7) in the switched-on state and for feeding a signal and reflecting said current to the control unit (14).
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: October 29, 2019
    Assignee: TRIDONIC GMBH & CO KG
    Inventor: Andre Mitterbacher
  • Patent number: 10453419
    Abstract: A display panel driving apparatus includes a gate driving circuit, a data driving circuit, a timing controlling circuit and a voltage generating circuit state receiving circuit. The voltage generating circuit state receiving circuit is configured to receive voltage generating circuit state data indicating a temperature, a voltage or a current of a voltage generating circuit from the voltage generating circuit. The voltage generator generates a voltage used to drive the display panel, and controls an operation of the timing controlling circuit according to the voltage generating circuit state data.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: October 22, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jeong-Min Sung, Byung-Kil Jeon, Dong-Hyun Yeo, Su-Hyun Jeong, Eun-Seon Kim
  • Patent number: 10448483
    Abstract: A predictive system and method thereof for indoor horticulture are disclosed. The method includes obtaining a set of input values identifying a geographic position of a physical structure enclosing an interior environment and a target distribution for environmental parameters for a selected plant occupant. The method further includes obtaining a virtual representation of the physical structure, and iteratively over time, updating the virtual representation based on actual plant growth or a predicted plant growth model for the selected plant occupant. The method further includes running a computational model to obtain a predicted distribution of the environmental parameters for the virtual representation, and determining a target distribution of artificially modulated environmental parameters.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: October 15, 2019
    Assignee: SUNTRACKER TECHNOLOGIES LTD.
    Inventors: Ian Ashdown, Wallace Jay Scott
  • Patent number: 10445046
    Abstract: Disclosed is a system for displaying dynamic information from a remote information source at one or more locations within or outside a premises. The system includes a lighting network configured to enable communication of data to and from a plurality of lighting devices and at least one information display node positioned within or outside the premises and connected to the lighting network. The information display node includes a processor configured to receive dynamic information transmitted over the lighting network from a remote source, memory for locally storing image data, and a projector. The processor is configured to generate display data using a combination of the received dynamic information and the stored image data and the projector is configured to project the display data in a visually perceptible form in proximity to the information display node.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: October 15, 2019
    Assignee: ABL IP Holding, LLC
    Inventor: Min-Hao Michael Lu
  • Patent number: 10426004
    Abstract: A driver circuit for a light-emitting diode arrangement has a supply terminal for connecting a voltage source. A boost converter inductance connects the supply terminal to a common circuit node. A switching unit connects the circuit node to ground depending on a switching signal. A rectifying unit connects the circuit node to an anode terminal for the light-emitting diode arrangement by way of a circuit branch to which a terminal of a storage capacitance and a terminal of an RC element are connected. A cathode terminal for the cathode side of the light-emitting diode arrangement is electrically connected to the circuit node. A buck converter inductance is connected in each case between the rectifying unit and the anode terminal and/or between the cathode terminal and the circuit node.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: September 24, 2019
    Assignee: Continental Automotive GmbH
    Inventors: Christian Stoeger, Emil Kovatchev
  • Patent number: 10420178
    Abstract: In one example, a system includes a load module, a power module, a series module, and a control module. The power module is configured to generate a supply power. The load module is configured to select a subset of light emitting diodes (LEDs) from a set of LEDs. The series module is configured to receive the supply power from the power module, dissipate a portion of the supply power, and output, to the subset of LEDs, a remaining portion of the supply power as a load power. The control module is configured to drive the series module to limit an amount of power at the subset of LEDs.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: September 17, 2019
    Assignee: Infineon Technologies AG
    Inventors: Paolo Milanesi, Fabio Fragiacomo, Maurizio Galvano, Roberto Penzo, Enrico Tonazzo
  • Patent number: 10420182
    Abstract: Systems, methods and computer-readable media are described herein for commissioning a group of two or more lighting units (102) as a group. In various embodiments, the group may be commissioned based at least in part on the two or more lighting units emitting light having corresponding properties. Additionally or alternatively, in various embodiments, the group may be commissioned based on the two or more lighting units being influenced by sensor events raised by two or more sensors (110) within a predetermined time interval. The two or more sensors may take a variety of forms, including but not limited to a presence sensor, an accelerometer, a sensor configured to detect a signal from a third party network service, and so forth.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: September 17, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Dzmitry Viktorovich Aliakseyeu, Ramon Antoine Wiro Clout, Tatiana Aleksandrovna Lashina, Bartel Marinus Van De Sluis, Tim Dekker
  • Patent number: 10383186
    Abstract: Aspects of the subject technology relate to control circuitry for light-emitting diodes. The control circuitry may include a feedforward loop and a feedback loop for a power supply for the light-emitting diodes. The light-emitting diodes may be arranged in strings that are individually controllable by a current control transistor on the string. The feedforward loop may determine a total upcoming load current for the power supply based on reference voltages for controlling each of the current control transistors. The output of the power supply may be modified based on a combination of a current from the feedforward loop and a current from the feedback loop.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: August 13, 2019
    Assignee: Apple Inc.
    Inventors: Yanhui Xie, Asif Hussain, Ji Yeoul Ryoo, Jingdong Chen, Mohammad J. Navabi-Shirazi
  • Patent number: 10367318
    Abstract: A modular fixture for supplying power, control signals, and/or data communication to various devices. The modular fixture includes one or more connectors for mating with a wide variety of types of electrical devices. The connectors are coupled to a plurality of conductors within the modular fixture so that the connectors may supply power, control signals, and/or data communication to various devices mated with any of the connectors. Exemplary devices include lighting devices, cameras, wireless communication devices, speaker devices, microphone devices, solar energy devices, and/or wind energy devices. The modular fixture may also be used with other types of devices.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: July 30, 2019
    Inventor: Paul Hoopengarner
  • Patent number: 10362644
    Abstract: A driver circuit includes a load control circuit for supplementing a light emitting diode (LED) load in a low load condition. The low load condition corresponds to an output voltage across the LED load below a predetermined threshold voltage. The driver circuit includes an isolation transformer. A primary side circuit is coupled to a primary winding of the isolation transformer and includes a constant current control integrated circuit (IC) and a switch. The constant current control IC controls an output current to the LED load. A load control circuit is coupled to across the LED load and includes an auxiliary load which ensures that the isolation transformer operates in a continuous mode. The auxiliary load supplements the LED load with in a low load condition, but not in a high load condition. The auxiliary load may be configured to quickly discharge an output capacitor in a power off condition.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: July 23, 2019
    Assignee: Universal Lighting Technologies, Inc.
    Inventor: Wei Xiong
  • Patent number: 10356876
    Abstract: According to the present disclosure, a lighting device provides: an elongate support element, a plurality of lighting units distributed along the length of said support element, each of said units including: a set of electrically powered light radiation sources, a driver supplying said set of light radiation sources with a supply current having an intensity which is a function of an impedance value sensed at a current control input of driver. At least one of said lighting units includes a mounting seat for a lighting adjustment impedance, said seat having an electrical connection to the current control input of at least one driver, so that the intensity of the current supplied by driver to a respective set of light radiation sources is a function of the impedance value of a lighting adjustment impedance arranged at said seat.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: July 16, 2019
    Assignee: OSRAM GmbH
    Inventors: Valerio Michielan, Matteo Caldon
  • Patent number: 10349474
    Abstract: An LED lamp tube capable of rectifying and stabilizing voltages includes an LED component. Two ends of the LED lamp tube respectively include two conductive pin assemblies, a polarity conversion module, a suppressor, and a voltage buck-booster module. The polarity conversion module includes two voltage conversion devices connected to the conductive pin assemblies. A set of capacitors is electrically connected between each of the voltage conversion devices to operate a circuit in an electronic rectifier to compensate and stabilize an input voltage.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 9, 2019
    Assignee: Xiamen PVTECH Co., Ltd.
    Inventors: Fuxing Lu, Minghui Qiu, Rongtu Liu
  • Patent number: 10337715
    Abstract: This application provides a lighting box and a monitoring method therefor. The lighting box includes; a power management module, including a monitoring power supply module. The monitoring power supply module includes; a monitoring sensing module; a door opening sensing module; a heat dissipation device, configured to reduce the temperature of the lighting box; and an alarm apparatus, configured to send an alarm signal. The power management module further includes a lighting box power supply module including a light source module. The power management module controls the monitoring power supply module and the lighting box power supply module.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: July 2, 2019
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chia-Jen Tsai
  • Patent number: 10335019
    Abstract: An image pickup element includes a first substrate, a second substrate, first pixels, and second pixels irradiated with light transmitted through the first pixels, and the second pixel includes a first PN junction surface parallel to a light-receiving surface, and a second PN junction surface positioned deeper than the first PN junction surface and parallel to the light-receiving surface, and the second pixel generates a second signal corresponding to light of a second wavelength band from electric charge obtained by the second PN junction surface.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: July 2, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Yasuhiro Fukunaga
  • Patent number: 10334690
    Abstract: A driving device and a driving method are provided. The driving device includes at least one driving signal generator, respectively coupled to at least one light emitting diode string, respectively, and respectively generates at least one driving signal to drive the light emitting diode string. At least one detection device is coupled to a detection point of the respective light emitting diode string and the respective driving signal generator, and compares the detection voltage of the corresponding light emitting diode string on the detection point with the detected voltages on the detection points of a plurality of remaining light emitting diode strings. Each of the driving signal generators determines whether to generate the driving signal according to the detection result of the corresponding detection device.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 25, 2019
    Assignee: Au Optronics Corporation
    Inventors: Meng-Nien Hsu, Yi-Jiun Tsai, Yi-Hao Wang
  • Patent number: 10310532
    Abstract: According to an aspect of the disclosure, a processor is configured to detect a location of a mobile device associated with a site and detect at least one geofence operably associated with the site. The processor is further configured to detect a manual input condition provided at a network device disposed at the site, detect the mobile device being disposed away from the site based on the location of the mobile device relative to the at least one geofence, and initiate a text message to the mobile device indicating the manual input condition in response to the mobile device being disposed away from the site. The processor is further configured to detect an altered operating condition received from the mobile device in response to the text message, and alter the manual input condition of the network device at the site using the altered operating condition.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: June 4, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kevin R. Imes, James Hollister
  • Patent number: 10299349
    Abstract: A method, device and computer program product for (near) synchronous control of networked lighting devices is presented. In networked lighting systems, a control command sent to the networked lighting devices is limited in length and as such it is not always possible to include the identifiers of the networked lighting devices, as well as the color point and/or intensity level they should change to in a single control command. However, sending multiple control commands in sequence can result in the undesired effect that these lighting devices change light output out-of-sync. The invention proposes to determine an approximate color point and/or approximate intensity level in, respectively, a color space and/or intensity space of a lower resolution. This allows a control command to comprise the identifiers of the networked lighting devices, as well as the approximate color point and/or approximate intensity level for (near) synchronous control of the networked lighting devices.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: May 21, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Leendert Teunis Rozendaal, Aloys Hubbers, Antonie Leonardus Johannes Kamp, Marcel Lambertus Leonardus Bijsterveld
  • Patent number: 10285228
    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: December 8, 2017
    Date of Patent: May 7, 2019
    Assignee: On-Bright Electronics (Shanghai) Co., Ltd.
    Inventors: Meng Li, Mingli Kang, Liqiang Zhu, Lieyi Fang
  • Patent number: 10278252
    Abstract: A solid-state circadian rhythm lamp and luminaire and related control techniques are disclosed. The lamp or luminaire may have: (1) a night/pre-sleep emissions mode in which it emits light having a correlated color temperature (CCT) of about 1,800-2,300 K, the spectral power ratio of blue light (400-495 nm) being such that it constitutes about 10% or less of the total light emitted; (2) a day/wakeup emissions mode in which it emits light having a CCT of about 5,000-8,000 K, the spectral power ratio of blue light being such that it constitutes about 30% or more of the total light emitted; and/or (3) a general lighting mode in which it produces a combined light output having a CCT of about 2,500-5,000 K. The driver may support emissions mode changing based on hysteresis relating to a lighting switch associated with the lamp or luminaire.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: April 30, 2019
    Inventors: Ming Li, Arunava Dutta, Anne Janet Milliez, Ravidasa Hegde, Vidisha Gupta, Philip Gerard Rioux
  • Patent number: 10212793
    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: July 16, 2018
    Date of Patent: February 19, 2019
    Assignee: Logitech Europe S.A.
    Inventors: Laurent Plancherel, David Tarongi Vanrell
  • Patent number: 10203089
    Abstract: A light flux controlling member includes a lens body and a cut part. The lens body and the cut part are an integrally molded article composed of a cured product of a liquid resin composition. The cut part extends outward from the entire circumference of the outer peripheral part of the lens body in plan view of the light flux controlling member. The cut part includes the outward-facing end surface bearing a blade mark or a melting mark. In the front-rear direction of the light flux controlling member, the distance between the bottom surfaces of the cut part and the lens body is 20 ?m or more.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: February 12, 2019
    Assignee: ENPLAS CORPORATION
    Inventors: Shuji Tatsuno, Hiroshi Motoki