Patents Examined by Amy X Yang
  • Patent number: 10588188
    Abstract: An alternating-current LED drive circuit, comprising a plurality of LED strings connected between an alternating-current voltage source and a ground, any one of the LED strings being correspondingly provided with a conversion switch and one or more LED light sources being connected in series in any one of the LED strings; a voltage detection unit used for detecting a voltage root mean square value of an alternating-current power supply signal in the connected alternating-current voltage source; and a switching logic control unit used for outputting, according to a voltage interval into which the voltage root mean square value detected by the voltage detection unit falls, a conversion control signal corresponding to the voltage interval to each conversion switch to corresponding to each LED string respectively control each conversion switch to perform a corresponding conversion action, the conversion action of each conversion switch enabling all LED strings to be connected in series or in parallel to adapt to
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: March 10, 2020
    Assignee: SHANGHAI YAMING LIGHTING CO., LTD.
    Inventors: Kryger De Jozef, Xiaoliang Xu
  • Patent number: 10582582
    Abstract: A control system for a stadium lighting system comprising a plurality of luminaires installed within the stadium to illuminate a pitch within the stadium in accordance with a light plan containing aiming information for each luminaire is disclosed. The control system comprises a data storage device storing the light plan and a controller communicatively coupled to the data storage device, the controller being responsive to object tracking information for an object travelling across the pitch. The controller is adapted to determine a direction of travel of the object from the object tracking information; evaluate the aiming information for each luminaire to identify if at least one luminaire is arranged to generate a luminous output in an aiming direction coinciding with said direction of travel; and generate a dimming level adjustment signal for the at least one identified luminaire to reduce the intensity of said luminous output.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: March 3, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Harry Broers, Willem Peter Van Der Brug, Ruben Rajagopalan
  • 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: 10537002
    Abstract: A system and method for operating a lighting array is disclosed. In one example, the system and method detect the presence or absence of short circuiting current flow through a light emitting device and provide an indication of the same. The system and method may also increase or decrease current flow through the lighting array to compensate for reduced lighting output or to reduce the possibility of lighting array degradation.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: January 14, 2020
    Assignee: Phoseon Technology, Inc.
    Inventors: Jeff A. Smith, Edward A. Kiyoi, Ken McAllister
  • Patent number: 10537008
    Abstract: An apparatus for driving LEDs using high voltage includes two LED driving circuits and two switches controlled by a universal controller so as to connect the two LED driving circuits in two different configurations. Each LED driving circuit has an LED unit formed by a plurality of LED segments. Each LED segment has an associated bypass switch controlled by an LED controller to bypass or connect the LED segment in the LED unit. When an input voltage ranges from rectified 90 volt AC to rectified 140 volt AC, the two switches are controlled to connect the two LED driving circuits in parallel. When the input voltage ranges from rectified 180 volt AC to rectified 265 volt AC, the two switches are controlled to connect the LED segments of the LED unit in one LED driving circuit in series with the other LED driving circuit.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: January 14, 2020
    Assignee: VastView Technology Inc.
    Inventors: Hung-Chi Chu, Yuhren Shen
  • Patent number: 10531531
    Abstract: A system and method for controlling a light output from a LED-based lighting solution is provided that may receive phase-cut AC signals and/or external digital control signals. The invention is capable of receiving both a phase-cut AC signal and an external digital control signal simultaneously and providing a desired light output from a LED-based lighting solution. The system generally includes a power source electronically connected to one or more dimmers and an AC power output of the dimmer connected to a solid state lighting device such as an LED. The system is capable of receiving signals from a wired and/or wireless external digital control device to additionally control the desired light output from a LED-based lighting solution.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: January 7, 2020
    Assignee: DIALOG SEMICONDUCTOR INC.
    Inventors: Xiaoyan Wang, Nan Shi
  • Patent number: 10531548
    Abstract: A method is provided for controlling one or more lighting devices to generate a dynamic light effect based on an image. A first area in the image is selected based on first selection criteria (e.g. object recognition). Within this first area, a sequence of sub-areas (260, 262, 264) are selected based on second selection criteria (e.g. zooming in to a recognized object). Color values are extracted from each sub-area and the one or more lighting devices are controlled based on the extracted color values.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: January 7, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Bartel Marinus Van De Sluis, Bas Driesen, Berent Willem Meerbeek
  • Patent number: 10517152
    Abstract: A method of operating a switching power converter includes operating the switching power converter in a boundary conduction mode when a switching frequency of a switch in the switching power converter is below a switching frequency threshold such than an on time of the switch is adjusted based on a desired output power of the switching power converter, and operating the switching power converter in a discontinuous conduction mode when the switching frequency of the switch is above the switching frequency threshold such that one or more of the on time of the switch and a switching period of the switch are adjusted based on the desired output power of the switching power converter and the on time of the switch is clamped at a minimum switch on time.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: December 24, 2019
    Assignee: IDEAL Industries Lighting LLC
    Inventors: Ashish Ekbote, Noe Gonzalez
  • Patent number: 10517160
    Abstract: A lighting control method and an electronic device using the same are provided. The method includes receiving pattern information for controlling lighting, generating lighting control information including brightness level information corresponding to operation time information based on the received pattern information, and transmitting the lighting control information.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: December 24, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gyeyoung Lee, Daedong Kim, Dusan Baek, Changhyun Lee, Jaeho Jung, Yangwook Kim, Haein Chun
  • Patent number: 10477652
    Abstract: An operating device includes a display, a detector and a determiner. When the detector detects a designated position, the determiner determines whether or not a position corresponding to the designated position in a first layer is within a display region by first image data. When the position is within the display region, the determiner determines that the display region by the first image data is chosen. When the position is not in the display region, the determiner determines whether or not a position corresponding to the designated position in a second layer is within a display region by second image data. When the position in the second layer is within the display region by the second image data, the determiner determines that the display region by the second image data is chosen.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: November 12, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroshi Sugawara, Yuto Hidaka
  • Patent number: 10462872
    Abstract: An electrical load set circuit and apparatus having at least three control signal lines arranged in parallel, a pair of polarized electrical loads connected between two of the signal lines, and another electrical load connected between a different control signal line and one of the polarized loads. Individual ones of the electrical loads can be selectively activated without requiring an additional common (ground) line. At least two of the control signal lines can be kept in a floating state. A light strip includes plural light set circuits spaced along the control signal lines. In another variation, first and second light points are spaced along the three control signal lines, each including three different color LEDs respectively.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: October 29, 2019
    Assignee: FUJIAN YIBAO OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jiayang Lin, Baowen Lin
  • Patent number: 10455658
    Abstract: A lighting system and method includes a light module and control module having analog and digital inputs. The control module sends a lighting control output signal to the light module. A mode selector sets a mode of the control module. In a first mode, the lighting control output signal is based on one analog dimming lighting control input signal provided to an analog input. In a second mode, the lighting control output signal is based on dimming and color lighting control input signals provided to two analog inputs. In a third mode, the lighting output control signal is based on a digital lighting control input signal provided to a digital input. In a fourth mode, the control module determines a selected lighting scene based on a scene selection input signal provided to an analog input, and the lighting output signal is based on the selected lighting scene.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: October 22, 2019
    Assignee: USAI, LLC
    Inventor: Donald L. Wray
  • Patent number: 10433386
    Abstract: Systems and methods for illuminating and tracking a work area (21) is provided. Systems can include at least one lamp (14) to couple to an object, the at least one lamp (14, 24) to illuminate the work area (21), and a height module (50), the height module (50) in communication with the at least one lamp (14, 24) to provide an indication of a height of the work area. Methods can include the steps of determining a height data of the movable portion of the vehicle to be illuminated; communicating the determined height data of the movable portion to a stationary lamp (14, 24), the lamp including a microprocessor and plurality of light sources (20), each light source (20) controllable to illuminate an area at a predetermined height; and illuminating at least one of the plurality of light sources to correspond to the determined height data to illuminate the movable portion.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: October 1, 2019
    Assignee: J.W. SPEAKER CORPORATION
    Inventors: Charissa Quinlan, Bradley William Kay
  • Patent number: 10427591
    Abstract: A light assembly for generating a light pattern comprising LEDs; a first lens positioned in front of the LEDs to direct light from each LED into an illumination field, the illumination fields of energized LEDs create an illumination pattern and a first edge illumination field and a second edge illumination field; a processor controlling the LED duty cycles to move the illumination pattern in a first direction to the side of the first edge illumination field by (i) increasing an LED duty cycle associated with the first edge illumination field while decreasing an LED duty cycle associated with the second edge illumination field; and (ii) repeating step (i) with the illumination field adjacent the first edge illumination field in the first direction as the first edge illumination field and with the illumination field adjacent the second edge illumination field in the first direction as the second edge illumination field.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: October 1, 2019
    Assignee: J.W. SPEAKER CORPORATION
    Inventors: Bradley William Kay, Kevin Jay McWithey
  • Patent number: 10433393
    Abstract: A flexible LED lighting module includes a flexible housing and flexible PCB to which LED units are mounted. An encapsulant fills a channel of the flexible housing and has a same or similar optical refractive index value as is used in the LED unit to hold phosphorous particles used for coloring of the LED. Use of the encapsulant changes the color of the light ultimately emitted from the flexible LED lighting module, and this factor is corrected for in calibration processes associated with the flexible LED lighting module.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: October 1, 2019
    Assignee: B/E Aerospace, Inc.
    Inventors: Eric Johannessen, Jonathan Todzia, Donald LaSala, Gannon T. Gambeski, Matthew Dunn, Luis Sam
  • Patent number: 10407113
    Abstract: An LED driver is provided. The LED driver comprises a plurality of driving units and a fold circuit. The driving units are coupled to an LED string including a plurality of LEDs for driving the LEDs. The fold circuit is coupled to the LED string and divides the LED string into a plurality of LED segments when an input voltage is lower than a threshold voltage. The LED segments are coupled to each other in parallel, and the input voltage is supplied to the LED segments.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: September 10, 2019
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Chen-Hua Chiu, Moon-Ho Choi, Gwan-Bon Koo
  • Patent number: 10390398
    Abstract: A control unit for a LED assembly includes a first and second LED unit, the LED units being serial connected. The LED assembly, in use, is powered by a switched mode power supply. The control unit being arranged to receive an input signal representing a desired output characteristic of the LED assembly, determine a first and second duty cycle for respective LED units associated with a nominal current of the switched mode power supply, for providing the desired output characteristic, determine the largest of the first and second duty cycles for respective LED units, determine a reduced current based on at least the largest of the duty cycles, adjust the first and second duty cycle for respective LED units based on the reduced current, and provide an output signal for the LED assembly and the switched mode power supply based on the adjusted first and second duty cycles and the reduced current for obtaining the desired characteristic.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: August 20, 2019
    Assignee: ELDOLAB HOLDING B.V.
    Inventors: Marc Saes, Petrus Johannes Maria Welten
  • Patent number: 10375802
    Abstract: The invention relates to a building equipment-based communication system (1) comprising at least one building equipment-based device as a master unit (20), in particular a light fixture, to which at least one slave unit (13, 14), in particular a sensor and/or actuator, can be connected via a network, preferably in a wireless manner; the slave unit (13) is designed to communicate with the master unit (10) via the network connection either directly or indirectly by way of other slave units (14); and the master unit (10) is designed to send, via a communication interface (18), information received from the at least one slave unit (13,14).
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: August 6, 2019
    Assignee: TRIDONIC GMBH & CO KG
    Inventors: Johannes Bachmann, Frank Lochmann, Patrick Marte, Florian Moosmann, Daniel Oblak, Rainer Troppacher
  • Patent number: 10362648
    Abstract: An optoelectronic circuit for receiving a variable voltage containing alternating increasing and decreasing phases, the optoelectronic circuit including a plurality of groups of light-emitting diodes and a switching device for allowing or interrupting the circulation of a current through each group, the switching device also being suitable for detecting whether said variable voltage is supplied by a dimmer.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: July 23, 2019
    Assignee: Aledia
    Inventor: Frédéric Mercier
  • Patent number: 10356856
    Abstract: The present disclosure relates to a capacitor step-down LED driver and a driving method using the same. A capacitor step-down LED driver comprises a control circuit and a switching circuit. The control circuit turns on or off the switching circuit in response to an output current and an output voltage of the capacitor step-down LED driver, and thus controls an amount of energy supplied from an input side to an output side. In a first operation state, the switching circuit is controlled not to supply energy from the input side to the output side. In a second operation state, the switching circuit is controlled to supply energy from the input side to the output side. Thus, the output current is maintained to be a value of a desired driving current.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: July 16, 2019
    Assignee: SILERGY SEMICONDUCTOR TECHNOLOGY (HANGZHOU) LTD.
    Inventor: Wei Chen