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| Number | Title | Issue Date |
| 8188669 | Decorative lamp for displaying snowing or water-flowing pattern The present invention relates to a decorative lamp for displaying snowing and water-flowing pattern, comprising a rectification power supply, a controller and a lamp series section connected in sequence, wherein the lamp series section is composed of a plurality of ... | 05/29/2012 |
| 8179051 | Serial configuration for dynamic power control in LED displays A power management technique in a light emitting diode (LED) system is disclosed. The LED system includes a plurality of LED driver connected in series, each LED driver configured to regulate the current flowing through a corresponding subset of a plurality of LED s... | 05/15/2012 |
| 8159140 | Load driving apparatus The load driving apparatus according to the present invention includes a load current setting signal generating section, a load current generating section, a reference voltage generating section and a drive voltage generating section. The load current setting signal... | 04/17/2012 |
| 8159139 | Color and intensity control over power wires A control element for a luminaire constituted of a first and a second manually variable non-momentary impedance and a first and a second time dependent gating circuit, each responsive to a respective manually variable non-momentary impedance and operative to provide... | 04/17/2012 |
| 8148905 | AC light emitting diode and AC LED drive methods and apparatus An AC LED package and circuits are disclosed along with an AC LED driver. The AC LED circuit may include as few as one LED or an array of anti-parallel LEDs driven with AC power sources and AC LED drivers at various voltages and frequencies. The AC LEDs are pre-pack... | 04/03/2012 |
| 8143792 | Light-emitting diode backlighting systems Lighting system embodiments are provided to energize and calibrate strings of light-emitting diodes. These embodiments are particularly useful for calibration of strings of light-emitting diodes that are arranged to provide backlighting of liquid crystal displays. T... | 03/27/2012 |
| 8138680 | Light string with external resistor unit An LED light string including a first loop, which further includes a first plurality of LEDs in series successively connected by first connecting wires, and at least one first resistor connected to two first resistor wires, the first two resistor wires removably con... | 03/20/2012 |
| 8138679 | Organic electroluminescent light emitting device for restoring normal operation after low-voltage errors Provision of a light emitting device having functionality for restoring to normal even if a low-voltage error occurs, by temporarily applying a reverse current to a low-voltage error light emitting element using a direction inverting circuit, and repairing portions ... | 03/20/2012 |
| 8134298 | Decorative light string device The present invention discloses a decorative light string device, which comprises: a power plug receiving AC power, a tail socket coupled to the power plug, and a LED string with one end thereof coupled to the power plug and the other end thereof coupled to the tail... | 03/13/2012 |
| 8110997 | LED drive circuit A LED drive circuit equipped with oscillator 18, up/down counter 20, and DAC 22 in order to drive multiple LEDs 10(1)-10(m) in a block. Up/down counter 20 carries out count-up/down operations in sync with clock... | 02/07/2012 |
| 8093819 | Flashing light string A light string includes a load comprising a trigger LED assembly and a lighting assembly connected in series with the trigger LED assembly, the lighting assembly comprising a plurality of series connected lamps comprising an LED; and a rectifier for converting a sou... | 01/10/2012 |
| 8072152 | Limited flicker light emitting diode string A limited flicker decorative light-emitting diode (LED) string includes a power plug adapted to connect to an alternating current (AC) power source and supply AC power to the LED string, a first pair of LEDs and a second pair of LEDs, a plurality of LEDs electricall... | 12/06/2011 |
| 8072153 | Multi-color backlight control circuit and multi-color backlight control method The present invention discloses a multi-color backlight control circuit, comprising: a plurality of pins for electrically connecting with a plurality of LED strings of different LED colors; and a voltage supply circuit for receiving an input voltage and supplying a ... | 12/06/2011 |
| 8053995 | LED light string without additional resistors An electrical circuit for use as a string of lights in one embodiment includes a rectifier for converting AC into DC; and a plurality of lamps connected in series, each lamp having an LED, and wherein at least one of the lamps each has a Zener diode connected in ser... | 11/08/2011 |
| 8026671 | LED assembly and an improved power supply circuit thereof An LED device comprises an LED assembly and a power supply circuit. The power supply circuit includes an AC circuit connecting to the power source, a DC circuit coupling with the AC circuit, a driving circuit and a snubber circuit connected with each other and locat... | 09/27/2011 |
| 7893626 | Multi-color backlight control circuit and multi-color backlight control method The present invention discloses a multi-color backlight control circuit, comprising: a plurality of pins for electrically connecting with a plurality of LED strings of different LED colors; and a voltage supply circuit for receiving an input voltage and supplying a ... | 02/22/2011 |
| 7893627 | Light strands The Light strands include at least two light strands connected in series. Each light strand includes a plurality of LED (Light Emitting Diode) lights connected in series, a plurality of two-hole light sockets and a pair of three-hole light sockets being configured f... | 02/22/2011 |
| 7884553 | Light-emitting diode illumination circuit, illumination device, and liquid crystal display apparatus A light-emitting diode illumination circuit includes light-emitting diodes connected in series and compensating elements connected in parallel with the light-emitting diodes. Each of the compensating elements includes positive and negative terminals and at least one... | 02/08/2011 |
| 7855515 | High-voltage high-power constant current LED driver device A high-voltage high-power constant current LED driver device, can drive LED cluster, comprises switch tube, current sensing resistor Rcs and inductor L, particularly, comprises a low voltage control circuit that detects the voltage drop on the said current sensing r... | 12/21/2010 |
| 7852010 | Lighting device and method of lighting A lighting device, comprising at least first and second current regulators, each switchable among two settings, and at least first and second groups of solid state light emitters. If the first regulator is in a first setting, a first current is supplied to the first... | 12/14/2010 |
| 7852011 | Series-type LED lamp strip module A series-type LED lamp strip module includes a first LED lamp strip module and a second LED lamp strip module. The first LED lamp strip module and the second LED lamp strip module both include a power switch controller, at lease one LED lamp strip, a signal output a... | 12/14/2010 |
| 7768210 | Hybrid electroluminescent devices A hybrid electroluminescent (EL) device comprises at least one inorganic diode element and at least one organic EL element that are electrically connected in series. The absolute value of the breakdown voltage of the inorganic diode element is greater than the absol... | 08/03/2010 |
| 7750576 | Light string with external resistor unit An LED light string including a first loop, which further includes a first plurality of LEDs in series successively connected by first connecting wires, and at least one first resistor connected to two first resistor wires, the first two resistor wires removably con... | 07/06/2010 |
| 7696700 | System for rectifying and limiting current and reducing voltage A system for reducing and limiting current and reducing voltage for a light string system. The system includes: an input terminal connected to a rectifying circuit; the rectifying circuit being connected between the input terminal and a voltage-reducing and current-... | 04/13/2010 |
| 7683553 | LED current control circuits and methods Embodiments of the present invention include circuits and methods for electrical current control. In one embodiment, a regulator provides power to the anode end of a set of LED strings. A current setting circuit derives its current from a current reference and gener... | 03/23/2010 |
| 7501772 | LED lighting string employing rectified and filtered device An improved LED lighting string employs a rectified and filtered device functioned as a low pass filter device to rectify input AC source into DC source providing to the LED lighting string for improving LED's flickering issue and to upgrade the optical power factor... | 03/10/2009 |
| 7489086 | AC light emitting diode and AC LED drive methods and apparatus An AC LED package and circuits are disclosed along with an AC LED driver. The AC LED circuit may include as few as one LED or an array of anti-parallel LEDs driven with AC power sources and AC LED drivers at various voltages and frequencies. The AC LEDs are pre-pack... | 02/10/2009 |
| 7482760 | Method and apparatus for scaling the average current supply to light-emitting elements The present invention provides a method and apparatus for scaling the average drive current supplied to a light-emitting element or string thereof by coupling a scaling signal to an original control signal thereby generating an effective control signal for control o... | 01/27/2009 |
| 7482761 | Light emitting diode lamp assembly A light emitting diode (LED) lamp assembly comprises an LED string and a plug. The LED string comprises multiple LEDs connected together in series. The plug is connected to the LED string and an external AC power source and has a circuit board. The circuit board is ... | 01/27/2009 |
| 7471048 | Synchronous light emitting diode lamp string The present invention provides a light emitting diode lamp, which includes at least a light emitting diode and a control circuit. The light emitting diode lamp has an anode pin, a cathode pin, and a synchronous pin. The anode pin and the cathode pin receive a DC vol... | 12/30/2008 |
| 7446481 | Display device and control method thereof A display device and method for supplying stable electric power for a light source are provided. A display device comprises a plurality of light sources, a variable electrical power supply which supplies electric power for the light sources, a switching unit which i... | 11/04/2008 |
| 7423387 | Apparatus and method for controlling colour and colour temperature of light generated by a digitally controlled luminaire The present invention provides a method and apparatus for controlling the correlated colour temperature (CCT) or colour of light produced by an array of light-emitting elements by providing multiple selectable paths for the flow of drive current. The apparatus inclu... | 09/09/2008 |
| 7420335 | Switched constant current driving and control circuit The driving and control device provides a desired switched current to a load including two or more strings of one or more electronic devices. The device includes one or more voltage converters which convert the magnitude of the voltage from the power supply to anoth... | 09/02/2008 |
| 7408304 | Apparatus for power circuit of light emitting diode The invention is set for connecting L.E.D., bridging rectifier and AC/DC power transformer by using series connection method, also the main purpose is for saving energy and reducing the cost of electronic components. The first apparatus is built by first bridge rect... | 08/05/2008 |
| 7408305 | Codable electronic circuit arrangement and method for producing it A codable electronic circuit arrangement, in particular an LED circuit arrangement (1), having a lead (3), via which electronic circuit elements (6) of the circuit arrangement, in particular LED components, can be driven by a drive circuit (2... | 08/05/2008 |
| 7390115 | LED blinker load assembly An LED blinker load assembly (LBLA) (10) that can be integrated into the envelope of an LED light bulb or be attached externally to a rear, front or side LED lamp assembly. The LBLA (10) is comprised of an input circuit (12) and an output circui... | 06/24/2008 |
| 7362057 | Multi-way flashing control box for lamp strings A circuit board of a multi-way flashing control box includes a control circuit to be connected electrically to a plurality of LED lamp strings and operable to activate and deactivate the LED lamp strings, and a plurality of connecting units, each of which is for con... | 04/22/2008 |
| 7357525 | LED pool or spa light having unitary lens body The instant invention is directed to a light emitting diode pool or spa lamp bulb having at least one light emitting diode with at least one lens body that is optically clear. The at least one light emitting diode being embedded in the lens body, the lens body being... | 04/15/2008 |
| 7354174 | Energy efficient festive lamp The present invention relates to a novel energy saving decorative festive lamp that is ideally suited for use in clubs, restaurants, or decorative applications, where specialized lighting, such as rapid flashing or frequent starts, is required. It may be used with h... | 04/08/2008 |
| 7354175 | Environmentally resistant germicidal system Apparatus and methods for an environmentally resistant germicidal lamp are disclosed. A cover may have a material resistant to at least one of dripping, light splashing, light spraying of liquid and condensation. The cover may have a first section having an opening ... | 04/08/2008 |
