Patents Examined by Minh D A
  • Patent number: 11930578
    Abstract: A power line carrying signal pixel control light emitting diode system includes a micro-control circuit, an alternating-current power detector and a plurality of light emitting diode lamps. The micro-control circuit includes a first switch and a micro-control module. When the light emitting diode lamps are required to be controlled to light, the micro-control module detects a voltage status of an alternating-current power through the alternating-current power detector. The micro-control module continuously switches a conduction status of the first switch within a half-wave cycle along a voltage change of the alternating-current power to change a voltage transmitted to the light emitting diode lamps to generate a plurality of lighting control signals. The light emitting diode lamps are configured to receive the lighting control signals and light based on the lighting control signals.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: March 12, 2024
    Assignee: SEMISILICON TECHNOLOGY CORP.
    Inventor: Wen-Chi Peng
  • Patent number: 11903103
    Abstract: A lighting system includes control adapters and a lighting controller that sends commands and data over an AC power line to power and control the lamps associated with the control adapters. Lighting themes are uniquely programmable color and intensity that are applied to a collection of control adapters to achieve different lighting modes instantly, without the delay that programming each control adapter individually incurs. The plurality of control adapters receive theme lighting information over the power line and store the theme information in memory. The lighting controller sends a single command to the collections of the control adapter groups to apply the theme or a multiple of themes to run in sequence as a pattern. Each control adapter retrieves and applies the theme information associated with the pattern.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: February 13, 2024
    Assignee: Hunter Industries, Inc.
    Inventor: Peter John Woytowitz
  • Patent number: 11895751
    Abstract: A leakage protection circuit and a dimming drive circuit are provided. A leakage detection circuit is configured to detect whether leakage occurs between two input terminals that receive an external signal. When leakage occurs, leakage protection measures are taken. A pulse generation circuit receives the sampling signal characterizing the voltage between the two input terminals to compare the sampling signal with two thresholds to control a detection path of the leakage detection circuit to be turned on or off according to a comparison result. The leakage detection path is enabled to be turned on twice by setting two pulse signals in a power frequency period, which can consider the leakage detection of the front-edge phase-cutting dimming and rear-edge phase-cutting dimming of the dimming drive circuit and has a wide range of applications.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: February 6, 2024
    Assignee: JOULWATT TECHNOLOGY CO., LTD.
    Inventors: Wanyue He, Guoqiang Liu
  • Patent number: 11889598
    Abstract: A light-emitting diode (LED) dimming driving device includes a digital-to-analog converter (DAC) control signal generating unit and an LED driving signal generating unit. The DAC control signal generating unit generates a first control signal and a second control signal. The first control signal is input to the LED driving signal generating unit to generate a first driving current I1, and the second control signal is input to the LED driving signal generating unit to generate a second driving current I2. The first driving current I1 is less than a maximum power current value Ipeak corresponding to a peak power of the LED driving signal generating unit, and the second driving current I2 is greater than the maximum power current value Ipeak corresponding to the peak power of the LED driving signal generating unit.
    Type: Grant
    Filed: July 31, 2023
    Date of Patent: January 30, 2024
    Assignee: X-SIGNAL INTEGRATED CO., LTD.
    Inventors: Guanou Yang, Lingxin Kong
  • Patent number: 11889607
    Abstract: An enhanced lighting control system is provided that utilizes updated communications technology to provide a cost and resource efficient lighting control system that allows for a retrofit installation into existing lighting systems. The lighting control system utilizes single pair ethernet connection protocols, as well as a pulsed power source, to enable the efficiencies.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: January 30, 2024
    Assignee: Panduit Corp.
    Inventor: Michael J. Vermeer
  • Patent number: 11882633
    Abstract: A method for operating clocked and regulated electronic power converters may be contained in operating devices for light-emitting diodes. An associated regulating circuit may include at least one regulating amplifier having at least two regulating inputs, from the output of which a negative feedback network runs to one of its regulating inputs, a first input for the signal for a target value of the average of the output power to be regulated, and a second input which forwards a signal for the target value of a waveform or of a pulse pattern for the output power to be regulated to one of the regulating inputs via a DC current-blocking high-pass filter.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: January 23, 2024
    Assignee: OSRAM GMBH
    Inventors: Joachim Muehlschlegel, Markus Heckmann
  • Patent number: 11882634
    Abstract: A light emitting diode (LED) lighting apparatus is provided. The LED lighting apparatus includes a first LED array; a second LED array; a first driving chip configured to receive AC power, and to control the first LED array based on a first control signal; a second driving chip configured to receive the AC power, and to control the second LED array based on a second control signal; a communication device configured to generate the first control signal and the second control signal based on a request from an external device; and an AC/DC converter configured to receive the AC power, and to provide DC power to the communication device.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: January 23, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Deokhee Han
  • Patent number: 11871489
    Abstract: A lighting device, such as a light-emitting diode (LED) light source, may operate in an interim operable state to avoid and/or prevent undesirable characteristics in the light emitted by the lighting device (e.g., strobing and/or flickering of a brightness of the light and/or shifting or change of a color of the light). When operating in a normal state, the control circuit may determine if a measured value of a first operational characteristic (e.g., a forward voltage of an emitter of the lighting device) is outside of a range and operate in the interim operable state if the measured value of the first operational characteristic is outside of the range. When operating in the interim operable state, the control circuit may adjust a drive current for the emitter in response to a measured value of a second operational characteristic (e.g., a forward voltage of a detector of the lighting device).
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: January 9, 2024
    Assignee: Lutron Technology Company LLC
    Inventors: Jason E. Lewis, Jivan J. Luu
  • Patent number: 11865968
    Abstract: A vehicle lamp includes a turn lamp, a nonvolatile memory, a signal processing device, and a drive circuit. The turn lamp includes a plurality of light emitting elements that independently controllable to be turned on and off. The nonvolatile memory stores a parameter related to control of the plurality of light emitting elements. The signal processing device generates, based on the parameter, a plurality of turn-on commands indicating turn-on states of the plurality of light emitting elements at each time point by executing a software program. The drive circuit drives each of the plurality of light emitting elements based on the plurality of turn-on commands.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: January 9, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Yuichi Miyashita
  • Patent number: 11871497
    Abstract: A load regulation device is adapted to control an electrical load. The load regulation device may be in a low power state, a ready state, and/or an on state. The low power state is characterized by the electrical load being unenergized. The ready state is characterized by a load control device and/or the load regulation device using more power than the low power state and the electrical load being unenergized. The on state is characterized by the electrical load being energized. The load regulation device is configured to receive an indication of a user's presence when the load regulation device is in the low power state. The load regulation device is configured to change from the low power state to the ready state in response to receiving the indication. The load regulation device is configured to wait in the ready state for a change state instruction.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: January 9, 2024
    Assignee: Lutron Technology Company LLC
    Inventor: Matthew Knauss
  • Patent number: 11864284
    Abstract: A lighting system includes a light engine including a correlated color temperature (CCT) terminal configured to transmit a first power signal having a first variance and to receive a CCT signal, the light engine being configured to emit light according to the CCT signal, and a CCT clamp coupled to the CCT terminal, and configured to receive the first power signal and to generate the CCT signal having a second variance, the first variance of the first power signal being greater than the second variance of the CCT signal.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: January 2, 2024
    Assignee: ERP Power, LLC
    Inventors: Michael Archer, Steven C. Krattiger, Louis Chen, James H. Mohan
  • Patent number: 11856668
    Abstract: A driving method, for a controller in a display apparatus, is disclosed. The display apparatus includes LED strings, scan transistors, current regulators and a power converter. The driving method includes following steps. LED cathode voltages are detected on nodes between the LED strings and the current regulators. When a first LED cathode voltage corresponding to a first scanning channel is equal to a minimal operable voltage of the current regulators and a second LED cathode voltage corresponding to a second scanning channel exceeds the minimal operable voltage of the current regulators, a voltage drop over one corresponding scan transistor is increased on the second scanning channel.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: December 26, 2023
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Jhih-Siou Cheng, Chih-Hsien Chou, Ren-Chieh Yang
  • Patent number: 11846394
    Abstract: A light source that is adapted to replace existing fluorescent tubes in an existing fluorescent light fixture is disclosed. The light source includes a plurality of LEDs mounted on a heat-dissipating structure, first and second plug adapters that mate with the florescent tube connectors of the fluorescent tube the light source is to replace, and a power adapter that converts power from a fluorescent tube ballast presented on the first and second plug adapters to DC power that powers the LEDs. The light source is powered from the output of the existing fluorescent ballast. The light source can utilize the existing metallic enclosure as a heat-radiating surface and/or direct air heat transfer from the surface of the heat-dissipating structure.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: December 19, 2023
    Assignee: BRIDGELUX, INC.
    Inventors: Ghulam Hasnain, Calvin B. Ward
  • Patent number: 11844156
    Abstract: An LED illumination device and a color temperature switching method thereof are provided. The LED illumination device includes a bridge rectifier chip, a microcontroller module, a first semiconductor switch module, a second semiconductor switch module, a first current limiting module, a second current limiting module, and a first light-emitting module and a second light-emitting module. The microcontroller module includes a microcontroller chip. The first semiconductor switch module includes a first semiconductor switch chip for receiving a first pulse width modulation signal output from the microcontroller chip. The second semiconductor switch module includes a second semiconductor switch chip for receiving a second pulse width modulation signal output from the microcontroller chip. When the AC power is supplied to the LED illumination device, the first and the second semiconductor switch modules are turned on and maintained within a predetermined turn-on percentage range without being completely turned off.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: December 12, 2023
    Assignee: PARAGON SEMICONDUCTOR LIGHTING TECHNOLOGY CO., LTD.
    Inventors: Chia-Tin Chung, Pei-Chun Liu, Yi-Chun Liu
  • Patent number: 11843165
    Abstract: A vehicular glass module (1) includes a vehicular window glass (2) having a conductive pattern (4) formed thereon and an on-glass connector (3) attached to the vehicular window glass (2). The on-glass connector (3) includes a hollow portion (11) and a circuit board (6) disposed in the hollow portion (11). The hollow portion (11) is in communication with an outside of the case (5) via a through hole (15) provided in a partition wall (14) defining a part of the hollow portion (11). The through hole (15) is positioned lower than the circuit board (6). The water generated in the hollow portion (11) by condensation is discharged to the outside via the through hole (15).
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: December 12, 2023
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Yoshinobu Tsurume, Hiromasa Morishita, Yuta Nakano
  • Patent number: 11838999
    Abstract: The present invention provides a power adaptor for LED lamps, and an LED lamp system, each of which may achieve the function of light dimming in a current LED lamp without having to modify its original structure(s) wherein the current LED lamp originally could not have the function, or may achieve better dimming control of parallel-connected LED lamps. The power adaptor includes a power conversion circuit and a dimmer, in which the dimmer includes a dimming signal generating module and a signal combining processing module. The dimming signal generating module is configured to receive a dimming instruction and convert the dimming instruction into a dimming signal. The signal combining processing module is electrically connected to the dimming signal generating module and configured to modulate the power signal, according to the dimming signal, to produce an output signal for driving the LED lamp.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: December 5, 2023
    Assignee: Jiaxing Super Lighting Electric Appliance Co., Ltd.
    Inventors: Aiming Xiong, Lin Zhou
  • Patent number: 11830704
    Abstract: A plasma processing apparatus includes: a processing container; an electrode that places a workpiece thereon; a plasma generation source that supplies plasma into the processing container; a bias power supply that supplies a bias power to the electrode; an edge ring disposed at a periphery of the workpiece; a DC power supply that supplies a DC voltage to the edge ring; a controller that executes a first control procedure in which the DC voltage periodically repeats a first state having a first voltage value and a second state having a second voltage value, the first voltage value is supplied in a partial time period within each period of a potential of the electrode, and the second voltage value is supplied such that the first and second states are continuous.
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: November 28, 2023
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Chishio Koshimizu, Shin Hirotsu
  • Patent number: 11823561
    Abstract: A remote control device may be configured to be mounted over the toggle actuator of a light switch and to control a load control device. The remote control device may include a mounting assembly and a control unit that is removably attachable to the mounting assembly. The mounting assembly may include a release tab that is configured to be operated from a locking position in which the control unit is secured to the mounting assembly, to a release position in which the control unit may be detached from the mounting assembly. The mounting assembly may include a clamp that is configured to engage with the toggle actuator of a mechanical switch to which the remote control device is mounted.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: November 21, 2023
    Assignee: Lutron Technology Company LLC
    Inventors: Chris Dimberg, Matthew Philip McDonald, William Taylor Shivell
  • Patent number: 11823871
    Abstract: Plasma source assemblies, gas distribution assemblies including the plasma source assembly and methods of generating plasma are described. The plasma source assemblies include a powered electrode with a ground electrode adjacent a first side and a dielectric adjacent a second side. A first microwave generator is electrically coupled to the first end of the powered electrode through a first feed and a second microwave generator is electrically coupled to the second end of the powered electrode through a second feed.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: November 21, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Jozef Kudela, Tsutomu Tanaka, Alexander V. Garachtchenko, Dmitry A. Dzilno, Avinash Shervegar, Kallol Bera, Xiaopu Li, Anantha K. Subramani, John C. Forster
  • Patent number: 11818822
    Abstract: A dimmer includes a primary intensity actuator coupled to a primary intensity potentiometer, the primary intensity actuator structured to be actuated for at least one of: controlling an amount of power delivered to a load connected to the dimmer in normal operation mode, and adjusting light intensity based on a first user input in the normal operation mode; selecting a type of end trimming based on a second user input before entering configuration mode; or adjusting, based on a third user input, an end trim value; a configuration actuator arranged on a side of the dimmer and structured to be actuated for entering the configuration mode based on a fourth user input within a first predetermined period; and a controller coupled to the primary intensity potentiometer, the configuration actuator, and a driver circuit coupled to a bidirectional switching device, the controller structured to control dimmer operation.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: November 14, 2023
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Gayatri Pandit, Swapnil Suresh Sabde, Hoon Lee, Saivaraprasad Murahari, Rahul Sakhare