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Document Title |
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RE41015 |
Bicycle battery charger and speedometer circuit
A circuit that receives signals from a dynamo and provides signals for charging a battery and indicating bicycle speed. The circuit includes a first switching circuit adapted to receive the dynamo...
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7605547 |
Addressable LED architecture
The present disclosure provides an addressable light emitting diodes (LED) architecture that is able to control a plurality of LEDs individually. The present disclosure further provides a method of...
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7589480 |
High intensity discharge lamp ballast
A low current loss ballast operates a high intensity discharge lamp with or without radioactive krypton. A by-pass capacitor in conjunction with a resonant strike circuit limits high frequency...
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7566142 |
Changing color LEDS
An LED with two or more leads with built-in and/or built-on circuitry that changes colors and patterns automatically. The LED preferably has a size, including the circuitry, of not more than about...
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7548030 |
Color control for dynamic scanning backlight
A method of controlling the output of a luminaire by receiving a first target signal associated with a first frame; generating a first light output control signal for an on time portion of the...
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7541751 |
Soft start control circuit for lighting
A low voltage lighting system includes a transformer having at least a primary winding and a secondary winding. The low voltage lighting system also includes one or more lighting elements and a...
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7540641 |
Apparatus and method for dimming function to control LED intensity
In one non-limiting embodiment, a system is provided for controlling interior lighting in a vehicle. The system is adapted to project a preselected color of light selected by user from a plurality...
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7492109 |
Apparatus for controlling lamp source and electric equipment and power socket therof
An apparatus for controlling an electric equipment is provided. The apparatus includes an input unit for generating a digital control signal carried on a power line to be transmitted to a power...
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7471051 |
Advanced low voltage lighting system
Disclosed is a lighting system supporting multiple independently controlled zones utilizing a plurality of semiconductor switches coupled to a plurality of transformers to produce a non-sinusoidal...
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7439688 |
Discharge lamp lighting circuit with power control
A discharge lamp lighting circuit includes an emission acceleration controller for detecting a voltage for a discharge lamp and for supplying power exceeding a rated value when the discharge lamp...
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7429830 |
Power control of a fluorescent lamp
A fluorescent lamp ( 2 ), in particular a backlight lamp of a display device, is supplied with an alternating voltage, a frequency and an amplitude of which being greater during ignition than...
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7385359 |
Information systems
An embodiment of this invention relates to an intelligent lighting device that can receive signals and change the illumination conditions as a result of the received signals. The lighting device...
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7382100 |
Lighting control device having improved long fade off
A lighting control device for controlling the light intensity level of at least one lamp is disclosed. The lighting control device includes an actuator and a controller operable to cause the light...
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7332877 |
Light controller
A light controller capable of varying the brightness of a light emitting diode in a linear manner. The light controller may control a number of lights in a predetermined pattern or in a pattern...
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7323831 |
Illumination device
An illumination device has an illumination unit which glows when current flows through a load thereof, at least one instruction unit for instructing the illumination unit to glow, a PWM signal...
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7301289 |
Discharge lamp lighting control device
The present discharge lamp lighting device is capable of rapidly breaking or restoring a lamp current or of rapidly reducing or restoring the lamp current. A discharge lamp lighting device,...
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7221110 |
Lighting control system and method
A lighting control system includes a plurality of light controllers. Each light controller contains a microprocessor-based intelligence. The plurality of light controllers form a distributed...
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7122974 |
Light quantity adjusting method, light quantity adjusting apparatus, and image forming apparatus
A light quantity adjusting method is used for driving a light emitting device with two drive current levels. The drive current levels are controlled by the first set data and the second set data,...
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7122971 |
Driver circuit for driving a plurality of DC lamp strings
A driver circuit for a DC light source supplies a voltage generated by a DC-to-DC converter for a plurality of lamp strings connected in parallel and a plurality of driving currents generated by a...
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7119501 |
Dynamic color mixing LED device
A dynamic color mixing LED device that includes a plurality of light emitting diode units. Each light emitting diode unit includes e.g. a first LED of a first color (e.g. red) and a second LED of a...
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7119500 |
Dynamic color mixing LED device
A dynamic color mixing LED device that includes a plurality of light emitting diode units. Each light emitting diode unit includes e.g. a first LED of a first color (e.g. red) and a second LED of a...
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7098611 |
Dimming control system with distributed command processing
A dimming control system includes dimmer modules that receive dimming level information from one of at least two control modules. Each dimmer module includes a microprocessor that provides internal...
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7095187 |
LED strobe light
An LED light that includes an LED light source. A thermoelectric device is configured to maintain the LED light source within a predetermined temperature range. A controller provides a pulse signal...
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7075242 |
Color OLED display system having improved performance
An OLED display system includes an OLED display including an array of light emitting pixels, each pixel having a plurality of OLEDs for emitting different colors of light specifying a gamut and...
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7071634 |
Lighting control device having improved long fade off
A lighting control device for controlling the light intensity level of at least one lamp is disclosed. The lighting control device includes a microcontroller and a user-actuatable switch controller...
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6949891 |
Light quantity adjusting method, light quantity adjusting apparatus, and image forming apparatus
A light quantity adjusting method is used for driving a light emitting device with two drive current levels. The drive current levels are controlled by the first set data and the second set data,...
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6946800 |
Electron emitter, method of driving electron emitter, display and method of driving display
An electron emitter has an electric field receiving member formed on a substrate, a cathode electrode formed on one surface of the electric field receiving member, and an anode electrode formed on...
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6940230 |
Modular lamp controller
Methods, apparatus, and systems are provided concerning modular lamp controllers. In one embodiment, a modular lamp controller dims a high intensity discharge lamp based upon occupancy. The lamp...
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6933686 |
Programmable AC power switch
An AC controller provides programmable switching of AC power flow, together with producing a source of DC power for the AC controller. The AC controller is connected in series with only one side of...
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6902293 |
Battery-operated lighting device
A battery-operated lighting device for use with any one of several rechargeable battery packs, each battery pack having a pair of terminals and a different operating voltage. The lighting device...
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6897624 |
Packaged information systems
An embodiment of this invention relates to an intelligent lighting device that can receive signals and change the illumination conditions as a result of the received signals. The lighting device...
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6869204 |
Light fixtures for illumination of liquids
Light fixtures for illumination of liquids in a variety of environments. In one example, multi-color LED-based light fixtures are employed to achieve a wide range of enhanced lighting effects in...
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6865428 |
Method and apparatus for providing distributed control of a home automation system
A method and apparatus for providing distributed control of a home automation system is provided. Each device participating in a home automation system is equipped with control logic for providing...
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6806871 |
Driver IC, electro-optical device and electronic equipment
A liquid crystal driver IC comprising: a power circuit; an electric volume for varying an output voltage from the power circuit; a temperature detector; and a correction table for storing an...
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6768273 |
Dynamo control circuit for a bicycle
A bicycle charge control circuit for receiving electric power from a bicycle dynamo and for controlling the operation of a lamp and a charging circuit includes a lamp switch for selectively...
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6765354 |
Circuitry arrangement for the operation of a plurality of gas discharge lamps
A circuitry arrangement for operating n gas discharge lamps, n being a whole number greater than 1, includes a single inverter, fed with d.c. voltage, for generating an a.c. voltage alterable in...
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6724180 |
Apparatus for and method of metering separate lighting circuits for comparative electric power usage to provide a virtual power plant in electric power savings
Lighting of buildings is costly in terms of electric power, and in view of this, disclosure is made of apparatus and method for comparison of electric power usage with incandescent or HID, high...
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6717376 |
Automotive information systems
An embodiment of this invention relates to an intelligent lighting device that can receive signals and change the illumination conditions as a result of the received signals. The lighting device...
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6674624 |
Dimmer
A dimmer comprises a PWM circuit for driving through pulse width modulation and a switching device formed on the same chip. The switching device has a driving circuit, an overheat cut-off...
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6642674 |
Twin dimming controller for backlight system
A twin dimming controller for backlight system is disclosed. In the present invention, the output of pulse width modulation modulator is used as a reference voltage of error-feedback amplifier and...
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6621235 |
Integrated LED driving device with current sharing for multiple LED strings
An integrated LED driving device for multiple LED strings which employs a single linear regulator or other controller and a multiple-output current mirror which is almost independent of the DC...
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6608453 |
Methods and apparatus for controlling devices in a networked lighting system
Methods and apparatus for computer-based control of light sources and other devices in a networked lighting system. Conventional light sources may be controlled in combination with LED-based (e.g.,...
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6570345 |
Constant current regulator for airport lighting
A constant-current regulator for high-powered airport lighting loops combined a ferroresonant transformer and a digital programmable logic device to provide a versatile, software-modifiable current...
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6531834 |
Circuit arrangement for controlling an analog voltage signal
Circuit arrangement for controlling an analog voltage signal comprising an input connection for applying the analog voltage signal (UE), a digitizer unit ( 10 ) which uses the analog voltage signal...
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6472831 |
I.L. timer
A system for an individual bulb timing assembly for providing direct bulb timed on-off sequencing. A timing assembly that is installed directly into an electrical fixture bulb socket, that provides...
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6469457 |
Power and data distribution in lighting systems
Improvements to lighting systems, especially for entertainment and architectural applications are disclosed, including apparatus that permit a user to readily field-configure power distribution to...
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6407515 |
Power regulator employing a sinusoidal reference
A power regulator for use with an AC power source includes a voltage converter having a first input and a second input. The first input is connected with the AC power source and receives AC current...
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6384545 |
Lighting controller
A lighting controller for performing lighting control operations of decorative lighting elements is disclosed. The controller comprises a processor and an electricity supply connector to which a...
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6346781 |
Signal generator and control unit for sensing signals of signal generator
A signal generating circuit coupled to an AC supply, the circuit comprising at least one first switch device coupled to the AC supply, at least one triggerable switch device coupled to the first...
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6320329 |
Modular high frequency ballast architecture
A modular high frequency ballast for two or more lamps. The modules are driven in an interleaved or non-interleaved switching manner. Independent lamp operation is provided for fixed and dimming...
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