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| Number | Title | Issue Date |
| 8102127 | Hybrid gas discharge lamp-LED lighting system A lighting system and method combine at least one LED and at least one gas discharge lamp within a common housing. The lighting system includes a control system to dependently operate each LED and each gas discharge lamp during overlapping, non-identical periods of ... | 01/24/2012 |
| 7352339 | Diffuse illumination systems and methods The systems and methods disclosed herein relate to sources of diffuse illumination for providing substantially uniform illumination to a surface. The diffuse illumination arises from varying the diffusion angle of light generated by an LED system. To vary the diffus... | 04/01/2008 |
| 7327101 | Single point sensing for end of lamp life, anti-arcing, and no-load protection for electronic ballast Systems and methods are disclosed that facilitate sensing a pulse in a ballast circuit for a lamp when the lamp is in an end-of-life (EOL) stage or when the lamp is experiencing an arcing conduction condition, such as may occur when a contact between the lamp and it... | 02/05/2008 |
| 7274153 | Portable fluorescent drop-light A hand-held fluorescent lamp assembly powered by typical line supply of 120 VAC, 60 Hz via an attached power cord and employing multiple commonly available fluorescent lamps. The assembly includes switches to independently control the multiple fluorescent lamps. The... | 09/25/2007 |
| 7248230 | Ornament apparatus, system and method Embodiments of the present invention are directed to an ornamental system, apparatus and method that is dynamically modifiable. Embodiments of the ornament system comprise a processor, at least one ornamental member and a data controller. The processor is a computer... | 07/24/2007 |
| 7231060 | Systems and methods of generating control signals Separating a source in a stereo signal having a left channel and a right channel includes transforming the signal into a short-time transform domain; computing a short-time similarity measure between the left channel and the right channel; classifying portions of th... | 06/12/2007 |
| 7227314 | Voltage equalization method and apparatus for low-voltage lighting systems A method and apparatus to equalize the voltage across each light bulb in a low-voltage lighting system, commonly found in the yards of private homes and businesses. The present invention consists of a power compensation element that is inserted in-line with each lig... | 06/05/2007 |
| 7221104 | Linear lighting apparatus and methods Linear lighting systems and methods. In one example, two or more lighting elements having an essentially linear or curvilinear shape are coupled together to form a lighting system. Each lighting element includes a group of LEDs arranged so as to illuminate the essen... | 05/22/2007 |
| 7215523 | Apparatus for protecting an integrated circuit and method thereof An apparatus for protecting an integrated circuit is applied to an electrical apparatus having a control unit. The control unit is used for controlling the integrated circuit and the protecting apparatus. The protecting apparatus includes a power input terminal, a p... | 05/08/2007 |
| 7202607 | Year-round decorative lights with time-multiplexed illumination of interleaved sets of color-controllable LEDS A decorative lighting apparatus provides user-selectable color schemes corresponding to several holidays and other occasions for year-round use. In one illustrative example, the decorative lighting apparatus includes control circuitry which has a plurality of color-... | 04/10/2007 |
| 7180252 | Geometric panel lighting apparatus and methods Methods and apparatus for generating at least one variable color lighting effect over at least a two-dimensional observation area. In various examples, at least first radiation having a first spectrum and second radiation having a second spectrum different than the ... | 02/20/2007 |
| 7131748 | Decorative lights with addressable color-controllable LED nodes and control circuitry, and method A decorative lighting apparatus includes a decorative light strand having a plurality of addressable color-controllable red-green-blue (RGB) light-emitting diode (LED) nodes positioned therealong; a decorating selector which provides a plurality of user-selectable s... | 11/07/2006 |
| 7116053 | Method for arc attachment stabilization A method of stabilizing an arc between electrode tips in a high pressure arc discharge lamp is provided comprising initially creating an arc between the pair of electrodes during a start-up phase of the lamp by supplying power to the lamp for a first period. The met... | 10/03/2006 |
| 7113541 | Method for software driven generation of multiple simultaneous high speed pulse width modulated signals Systems and methods can provide, in one aspect, a method for modulating the pulse width of control signals generated on a plurality of separate channels. In one practice, the methods described herein are suitable for execution on a microprocessor or micro controller... | 09/26/2006 |
| 7102301 | Year-round decorative lights with selectable holiday color schemes A decorative light strand has user-selectable color schemes corresponding to each holiday for year-round use. The light strand has a plurality of differently colored lights; a decorating selector comprising a switch which provides a plurality of user-selectable sett... | 09/05/2006 |
| 7088059 | Modulated control circuit and method for current-limited dimming and color mixing of display and illumination systems A control circuit for a lighting system allows analog control over a first range of illumination intensities in which the intensity of the illumination source varies in proportion to the voltage level of the control signal. The circuit provides for improved dimming ... | 08/08/2006 |
| 7057354 | Frequency controlled lighting system A method and apparatus for illuminating lighting elements in one or more predetermined patterns. A preferred frequency controlled lighting system implementing this method includes a motion switch, a controller, a sound generator, and lighting elements. The motion sw... | 06/06/2006 |
| 7038399 | Methods and apparatus for providing power to lighting devices Methods and apparatus for providing power to devices via an A.C. power source, and for facilitating the use of LED-based light sources on A.C. power circuits that provide signals other than standard line voltages. In one example, LED-based light sources may be coupl... | 05/02/2006 |
| 7038398 | Kinetic illumination system and methods The present invention relates to methods of creating eye-catching displays by taking advantage of color-changing illumination provided by LED systems disclosed herein. Displays can be made to appear to change color or to move simply by changing the color of the ligh... | 05/02/2006 |
| 6964495 | Portable reduced-emissions work light A reduced emissions work light includes a bulb with an elongated bulb tube. A handle is provided adjacent the bulb, and is adapted for being gripped by a user to manipulate the work light. An emissions containment housing is located within the handle. A ballast is l... | 11/15/2005 |
| 6933680 | Decorative lights with at least one commonly controlled set of color-controllable multi-color LEDs for selectable holiday color schemes A decorative light strand has user-selectable color schemes corresponding to several holidays for year-round use. The light strand has a plurality of lights including at least one commonly-controlled set of color-controllable multi-color LEDs; a decorating selector ... | 08/23/2005 |
| 6906472 | Articles with flashing lights Illuminating devices may be added to clothing and accessories worn by persons. Articles to which the illuminating devices may be added include footwear, hair-control articles, belts, suspenders, backpacks, purses, book-bags, vests and the like. The illuminating devi... | 06/14/2005 |
| 6768268 | Dimmer for vehicle use A dimmer for vehicle use of the present invention has a circuitry in which an output part of an amplifier in an oscillating circuit is grounded through a diode and a ground resistor in series, an anode of the diode is coupled to the output part, and a junction point... | 07/27/2004 |
| 6690120 | Year-round decorative lights with selectable holiday color schemes A decorative light strand has user-selectable color schemes corresponding to each holiday for year-round use. The light strand has a plurality of differently colored lights; a decorating selector comprising a switch which provides a plurality of user-sele... | 02/10/2004 |
| 6621224 | Light-controlling device used for vehicle A light-controlling device of this invention includes a controlling circuit having a function for turning an incandescent lamp and an LED off simultaneously, which have different minimum voltages each other at predetermined illumination. When illumination... | 09/16/2003 |
| 6329755 | Light adjustment device for a vehicle A light adjustment device for a vehicle comprises: a control circuit 8 connected to a lamp 2; a first variable resistor 20 for adjusting the intensity of illumination of the lamp 2 by changing the output voltage of the control circuit 8; and a second vari... | 12/11/2001 |
| 6169373 | Work light A work light includes a generally cylindrical, at least partly transparent housing, a first light source which is an elongated, rodlike bulb disposed within the housing, a second light source which is a narrow beam bulb disposed within the housing at one ... | 01/02/2001 |
| 6155694 | Composite warning light with emission pattern matching A multi-flash strobe light pattern is superimposed on each individual light pulse produced by an incandescent lamp to provide a warning signal of enhanced visibility in a particulate laden ambient environment. The first pulse of each multi-flash strobe pa... | 12/05/2000 |
| 5793164 | Low intensity aircraft rotor tip illumination A wing tip system for rotor craft includes a downwardly-facing light housing to provide a visual aid to rotor wingtip position. This system is visible to crew members and to adjacent crew, particularly when using night vision goggles (NVG) or other ambien... | 08/11/1998 |
| 5763964 | Distributed neon power supply system A high frequency power supply for distributed luminous tube signage including a master power unit and one or more slave units. The master unit includes a digital oscillator, controller, and electronic switches to induce a switched high frequency waveform ... | 06/09/1998 |
| 5661347 | Circuitry arrangement for controlling a plurality of consumers, in particular lamp ballasts In accordance with the invention the circuitry arrangement comprises a central unit (5) and a plurality of peripheral units, such as control apparatuses for lamps, connected with the central unit via a data bus. These peripheral units are each connected w... | 08/26/1997 |
| 5661367 | High pressure series arc discharge lamp construction with simplified starting aid A high pressure gas discharge lamp includes first and second discharge devices electrically connected in series within an outer envelope. The discharge devices each include a discharge vessel enclosing a discharge space with an ionizable fill and first an... | 08/26/1997 |
| 5491385 | Instant-on screw-in fluorescent lamp A compact folded fluorescent lamp and a small incandescent lamp are both mounted on an ordinary Edison-type screw-base capable of being screwed into an ordinary lamp socket at which ordinary AC power line voltage is controllably provided. An inverter-type... | 02/13/1996 |
| 5374876 | Portable multi-color signal light with selectively switchable LED and incandescent illumination A portable multi-color signal light having at least two color LED, such as red or blue or green or yellow, with or without covering color films, and at least one incandescent lamp, with or without covering color films. Independent switches allow for the s... | 12/20/1994 |
| 5309061 | Compact fluorescent lamp having incandescent lamp starting aid A lamp assembly includes a tubular incandescent lamp located between the four tube sections of a double twin tube compact fluorescent lamp such that heat is transferred from the incandescent lamp to the fluorescent lamp when the incandescent lamp is energ... | 05/03/1994 |
| 5008595 | Ornamental light display apparatus Ornamental and decorative light display utilizing LEDs constructed of two or more individual diodes. Each diode or portion of a diode is alternately selected and energized at a sufficient frequency that colors can blend to produce another color. The syste... | 04/16/1991 |
| 4958102 | Three way gas discharge lamp A three way lamp having two gas discharge light tubes mounted on the same housing having three terminals arranged thereon as provided on a three-way incandescent lamp.... | 09/18/1990 |
| 4958143 | Synchronized pulse-enhanced dual light source An intermittent low intensity light source that is switched on by a drive signal is enhanced by a high intensity light source. The high intensity light source is coupled with the low intensity light source so that at least some light from both sources is ... | 09/18/1990 |
| 4933603 | Circuit arrangement for indicator lights in motor vehicles A circuit arrangement for indicator lights in motor vehicles comprises four differently dimmable groups of lights I for tachometer and speedometer illumination 1, 2, II for the remaining dashboard illumination 3, 4, III for the center panel and foot space... | 06/12/1990 |
| 4908552 | Electronic flash unit This invention concerns with an electronic flash unit in which, as two capacitors of large and small capacitances are charged, even when a trigger operation is actuated before the capacitor of large capacitance is fully charged, it is made possible with t... | 03/13/1990 |
