Electric lamp and discharge devices: systems inventions 07/09

20090189527 - Magnetron with cathode decoupled from output: A magnetron has a first set of vanes etc which connect by legs to a coaxial output coupler and a second set of vanes etc which (in one embodiment) alternate with the vanes of the first set and are not connected to the output coupler. The vanes of each set... Agent: Venable LLP

20090189528 - Illuminating device: An illuminating device (10) includes a light source module (11) and an electronic module (15) detachably connected with the light source module. The light source module includes a plurality of light emitting diodes (112). The electronic module includes a receiver (151), a control circuit (152) electronically coupled to the receiver,... Agent: PCe Industry, Inc. Att. Steven Reiss

20090189529 - Semiconductor light emitting circuits including light emitting diodes and semiconductor shunt devices: Semiconductor light emitting circuits include semiconductor light emitting diodes that are serially connected between a pair of input terminals. Four layer semiconductor devices, such as Shockley diodes and/or thyristors are also provided, a respective one of which is connected across a respective one of the semiconductor light emitting diodes. The... Agent: Myers Bigel Sibley & Sajovec, P.A.

20090189530 - Method and apparatus for light intensity control: The present invention provides a method and apparatus for optical feedback control for an illumination device, wherein the control signal for each array of one or more light-emitting elements corresponding to a particular colour, is independently configured using a modification signal whose frequency is different for each colour. Electronic filters... Agent: Philips Intellectual Property And Standards

20090189531 - Backlight module: Backlight module is disclosed. The backlight module includes a first lamp, a first voltage source, a second lamp, a second voltage source, a first external electrode, and a second external electrode. Both the first and the second voltage sources have a first terminal and a second terminal. The first voltage... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090189532 - Electroluminescent device having improved brightness uniformity: An electroluminescent device having an opposing EL-segment pair, including a first EL-segment that produces light in response to a first through-device current having a first transparent electrode connection and a first reflective electrode connection; a second EL-segment that produces light in response to a second through-device current, and having a... Agent: Frank Pincelli Eastman Kodak Company

20090189533 - Dual colored led decoration lamp: A dual colored LED decoration lamp which includes a lamp string combined of multiple dual colored LED lamps and a controller connected between the power supply and the lamp string. The lamp string includes lamp groups combined of multiple LED lamps with two different colors and with their anodes and... Agent: Leong C Lei

20090189534 - Led lamp and driving apparatus for the same: An LED lamp including at least one LED is electrically connected to a utility input voltage. A driving apparatus located inside a lamp holder of the LED lamp includes an input rectifying/filtering unit to accept the utility input voltage; an isolated power inverter electrically connected to the input rectifying/filtering unit... Agent: Hdls Patent & Trademark Services

20090189536 - High efficiency and low cost cold cathode fluorescent lamp driving apparatus for lcd backlight: The invention is a driving apparatus and circuit for efficiently converting a direct current (DC) signal into an alternating current (AC) signal to drive a fluorescent lamp. A semi class E configuration which utilizes only one transistor is employed in the invention. The invention comprises a power transistor, a transformer... Agent: Baker & Mckenzie LLP Patent Department

20090189535 - Transformer wiring method and apparatus for fluorescent lighting: A transformer wiring method and apparatus for fluorescent lighting are described. The fluorescent lighting apparatus includes a transformer and a ballast. An installer is easily able to balance the system load because each fluorescent lighting apparatus includes its own transformer and may be connected directly to a facility's three phase... Agent: Foley & Lardner LLP

20090189537 - Connector and a display apparatus having the same: A display apparatus including: a backlight unit generating a light; a display panel receiving the light to display an image; a backlight driving circuit receiving a driving power and a control signal from an external system to drive the backlight unit; a display panel control circuit receiving a driving signal... Agent: F. Chau & Associates, LLC

20090189538 - Desk lamp with parallel guidance: In a lamp, in particular a desk lamp, with a base plate (2) and a lamp head (3), the lamp head (3) is held on the base plate (2) via two profile elements (4, 5) running next to one another, wherein the profile elements (4, 5) represent current-conducting elements.... Agent: Marshall, Gerstein & Borun LLP

20090189540 - Apparatus for controlling light emitting devices: The present invention is related to the apparatus for driving the light emitting devices with different colors. The input powers of the light emitting devices are measured and controlled by a feedback control system to maintain constant, and by setting different power inputs to the different light emitting devices different... Agent: Squire, Sanders & Dempsey L.L.P.

20090189539 - Controlling current through serial leds using a low voltage transistor when using a high voltage driver: Various circuits are described herein where a series transistor used to control current through a string of LEDs, driven by a high voltage, is not subjected to the high voltage when the transistor is turned off pursuant to a PWM signal. To avoid the transistor experiencing the high voltage, the... Agent: Patent Law Group LLP

20090189542 - Dimmer switch: A switching device includes a paddle actuator biased to a rest position and configured to pivot relative to a housing to a depressed position to engage an air-gap switch disposed within the housing. The air-gap switch is configured to change a first state of a load connected to the switching... Agent: Leviton Manufacturing Company Incorporated (cdfs) C/o Carter, Deluca, Farrell & Schmidt, LLP

20090189541 - Lighting device having cross-fade and method thereof: A lighting system is provided that includes at least one lighting device, at least one connector, and a plurality of external power sources. The at least one lighting device includes at least one lighting source, and an internal power source applying a first electrical current to illuminate the at least... Agent: Michael C. Pophal Eveready Battery Company Inc

20090189543 - Method of local dimming, backlight assembly for performing the method and display apparatus having the backlight assembly: In order to perform local dimming, a driving dimming duty cycle is generated using a target gamma curve (TGV), wherein the driving dimming duty cycle corresponds to a representative grayscale value (RGV) of each of a plurality of dimming unit areas. Each of a plurality of light unit blocks of... Agent: F. Chau & Associates, LLC

20090189544 - System with flicker control and method of reducing flicker generated by a system: A system is disclosed that is designed to be connected to an electrical power supply. The system comprises a plurality of electric load component comprising stages for cooperatively producing an output (Tout), each stage in a first subset of the stages comprising at least one electrical load component having a... Agent: K&l Gates LLP

20090189545 - Electronic ballast with transformer interface: An electronic ballast with transformer interface communicating between an external control system and the electronic ballast comprises an outboard circuit (160) operably connected to the external control system and communicating with the external control system by an external signal (140); a transformer (162) being operably connected to the outboard circuit... Agent: Philips Intellectual Property & Standards

20090189546 - Led dimming control circuit: A LED dimming control circuit that avoids a higher output voltage than expected is provided. The LED dimming control circuit comprises an inductor, a transistor, a dimming control signal, a feedback signal, a switching control circuit, an error amplifier, and an inverted amplifier. The inductor and the transistor are coupled... Agent: North America Intellectual Property Corporation

20090189547 - Lighting device and method of control based on chemistry composition of power source: A lighting device is generally illustrated having a light body having forward facing light sources including a visible white light source, visible colored light source and an infrared light source. Additionally, a side facing light source is provided. The light body also includes switches for activating the visible light sources... Agent: Michael C. Pophal Eveready Battery Company Inc

20090189548 - Lighting device having boost circuitry: A lighting device is generally illustrated including a light body having forward facing light sources including a visible white light source, visible colored light source and an infrared light source. Additionally, a side facing light source is provided. The light body also includes switches for activating the visible light sources... Agent: Michael C. Pophal Eveready Battery Company Inc

20090189549 - Heat dissipation in a lighting system and method thereof: A lighting system is provided that includes at least one lighting device, at least one connector, and a plurality of external power sources. The at least one lighting device includes at least one lighting source, and an internal power source applying a first electrical current to illuminate the at least... Agent: Michael C. Pophal Eveready Battery Company Inc

20090184645 - Method and circuit for heating an electrode of a discharge lamp: The present invention provides a method and circuit for accurately controlling heating of an electrode of a discharge lamp. According to the present invention a feedback voltage is generated. The feedback voltage is representative of an electrode voltage, in particular an electrode voltage when the discharge lamp is in a... Agent: Philips Intellectual Property & Standards

20090184646 - Light emitting diode cap lamp: A cap lamp features a housing. A control module is positioned within the housing and includes a multi-function switch, a circuit board and contacts adapted to receive power from a battery. An optic module is also positioned within the housing and in engagement with the control module. The optic module... Agent: Patent Group C/o Dla Piper US LLP

20090184647 - Safety starter device: A safety starter circuit for a gas discharge lamp is described, comprising a series arrangement of: a glow switch starter (5); at least one resistive element (9); a thermally controlled switching element (8). The thermally controlled switching element (8) is in a heat transfer relationship with the resistive element (9)... Agent: Philips Intellectual Property & Standards

20090184648 - Illumination copy and paste operation using light-wave identification: A system (100) includes a first controllable light source (310) configured to provide a first light for illuminating a first location, and a second controllable light source (320) configured to provide a second light for illuminating a second location. A detector (330) is configured to receive the first light and... Agent: Philips Intellectual Property & Standards

20090184649 - Current breaking controller for a lamp and lantern: An overcurrent breaking controller for a lamp and lantern comprises a trigger control unit connected to an AC power, a current transformer connected between the trigger control unit and the lamp and lantern, and an overcurrent restraint unit connected to the trigger control unit and the current transformer. When the... Agent: Sinorica, LLC

20090184650 - Ignition circuit and method for a discharge lamp: An ignition circuit for generating high voltage pulses to a discharge lamp is provided with a switching element (SW1) to enable to stop generating said high voltage pulses when the lamp does not ignite or has ignited. The switching element (SW1) is connected between the input terminals (ground, Vdc) of... Agent: Philips Intellectual Property & Standards

20090184651 - Circuit system for driving high-intensity discharging lamp: The invention provides a circuit system for driving a high-intensity discharging lamp, comprising a boosting circuit, an ignition coil circuit and a clamp circuit. The boosting circuit includes a first transformer and a first switch, in which the primary of the first transformer receives an input power, the secondary of... Agent: Bacon & Thomas, PLLC

20090184652 - Antenna for a load control device having a modular assembly: A load control device has a modular assembly to allow for easy adjustment of the aesthetic, the color, and the functionality of the load control device after installation. The load control device comprises a user interface module and a base module. The user interface module includes an actuation member for... Agent: Lutron Electronics Co., Inc. Mark E. Rose

20090184653 - Synchronous operating system for discharge tube lighting apparatuses, discharge tube lighting apparatus, and semiconductor integrated circuit: A synchronous operating system for operating a plurality of discharge tube lighting apparatuses at the same frequency and same phase includes (1) a resonant circuit including a capacitor C3 connected to at least one of primary and secondary windings, an output thereof being connected to a discharge tube, (2) switching... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090184654 - Inverter: Primary and secondary regions are electrically insulated from each other. The first and second pulse transformers are provided to the respective transistors in the switching circuit. Secondary windings of the first and second pulse transformers are connected to control terminals of the transistors. The control circuit supplies switching voltages to... Agent: Cantor Colburn, LLP

20090184657 - Backlight apparatus: The invention discloses a backlight apparatus. The backlight apparatus includes a power source, a lamp, a balance transformer, a detecting circuit, a judging module, and a controlling module. The balance transformer includes a primary winding electrically connected to the power source and a secondary winding corresponding to the primary winding... Agent: Morris Manning Martin LLP

20090184656 - Backlight system having a lamp current balance and feedback mechanism and related method thereof: A lamp current balance and feedback system and related method are disclosed for balancing the input and output currents of a lamp by making use of a lamp current balance and feedback mechanism. The operation of the lamp current balance and feedback mechanism includes coupling the input current of the... Agent: North America Intellectual Property Corporation

20090184658 - Image display apparatus: An image display apparatus includes: a rear plate having multiple electron-emitting devices; and a face plate having multiple anode electrodes and a common electrode electrically connected to the multiple anode electrodes, and facing the rear plate. The rear plate has a first conductive member at a position facing the common... Agent: Fitzpatrick Cella Harper & Scinto

20090184655 - Power management system for light emitting diodes: A power management system comprising: providing a one pin driver circuit; sourcing a managed current from the one pin driver circuit; and illuminating a light emitting diode by the managed current including reducing the managed current when the light emitting diode is not coupled.... Agent: Law Offices Of Mikio Ishimaru

20090184660 - Blacklight unit and display device including the same: A backlight unit and a display device having a backlight unit are disclosed. The backlight unit includes an LED substrate. The LED substrate includes a plurality of emission regions. An LED is provided in each emission region. An LED driver drives the LED. An LED controller supplies a dimming control... Agent: Frank Chau, Esq. F. Chau & Associates, LLC

20090184663 - Circuit for a motor vehicle, in particular for actuating a lighting device: A circuit is provided for actuating a lighting device in a motor vehicle. The circuit includes first and second light sources, that may include one or more light-emitting diodes. The light sources are connected in parallel, and each have a respective heat sink. Measuring means is configured to determine the... Agent: Johnson Controls, Inc. C/o Fletcher Yoder PC

20090184662 - Dimming signal generation and methods of generating dimming signals: A lighting control circuit comprises a dimming level detection circuit, a waveform generator and a comparator circuit. The dimming level detection circuit is configurable to generate a first voltage level signal corresponding to a selected one of at least two different types of dimming signals selected from among an AC... Agent: Burr & Brown

20090184661 - Electronic circuit for operating a plurality of gas discharge lamps across a common voltage source: The proposed circuit makes it possible to operate a plurality of gas discharge lamps, particularly cold cathode tubes, across a common voltage source. The circuit reduces the resistance tolerance of the lamp characteristic curves through controlled debalancing of the lamp currents with the aid of debalancing modules. Through the active... Agent: Cooper & Dunham, LLP

20090184659 - Time division multiplexing a dc-to-dc voltage converter: An apparatus includes a DC-to-DC voltage converter. The DC-to-DC voltage converter has a plurality of pairs of outputs and is configured to apply voltages across the pairs of outputs in a time division multiplexed manner.... Agent: Docket Administrator - Room 2f-192 Alcatel-lucent Usa Inc.

20090184665 - Drive device for leds and related method: A LED driver arrangement includes a switching-mode stage (12) to produce a drive current for feeding one or more LEDs (L) from a DC input (10) and a current sensor (18) sensitive to the current fed to the LEDs (L) for producing a feedback signal indicative of the intensity of... Agent: Frishauf, Holtz, Goodman & Chick, PC

20090184666 - Frequency converted dimming signal generation: There is provided a lighting control circuit comprising a duty cycle detection circuit, an averaging circuit, a waveform generator and a comparator circuit. The duty cycle detection circuit generates a first periodic waveform having a duty cycle and frequency corresponding to an input waveform duty cycle and frequency. The averaging... Agent: Burr & Brown

20090184668 - High efficiency boost led driver with output: A current driver for powering a string of LEDs has a boost converter coupled to an input voltage source. A voltage multiplier circuit is coupled to the boost converter and to the string of LEDs. A latch is provided having an output coupled to the boost converter. A current sense... Agent: Weiss & Moy PC

20090184669 - Light emitting diode lamp: A light emitting diode (LED) lamp including a lamp body, a current control circuit, a color temperature management unit electrically connected to the current control circuit, and an LED array disposed inside the lamp body. The LED array is electrically connected to the current control circuit. The LED array is... Agent: Jianq Chyun Intellectual Property Office

20090184664 - Method of driving light sources, device for driving light sources, and display device having the same: One or more embodiments of the present disclosure provide a method for driving light sources, a device for driving light sources and a display device having the device for driving the light sources. Power information is read based on position information on the light sources to output a light source... Agent: Haynes And Boone, LLPIPSection

20090184667 - Voltage supply module and backlight assembly having the same: In a voltage supply module and a backlight assembly having the same, a converter is disposed on a first face of a board and converts basic voltage into driving voltage. A capacitor includes at least one first electrode connected to an output line of the converter and at least one... Agent: Haynes And Boone, LLPIPSection

20090184670 - Waveform management systems and methods for ballasts: Waveform management systems and methods for ballasts are provided. The system includes a lamp, a ballast, a first interface, a storage unit, and a processing unit. The processing unit obtains at least one first waveform from the storage unit, and writes the first waveform to the ballast via the first... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090184671 - Discharge lamp lighting apparatus and semiconductor integrated circuit: A discharge lamp lighting apparatus has a switch circuit to convert a DC voltage into an AC voltage, a transformer, a discharge lamp, an error amplifier of a reference voltage and a voltage representative of a lamp current, a control circuit generating a PWM control signal, and a soft start... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090179571 - Method for detecting faults during operation of high-pressure discharge lamp using electronic ballasts: According to the invention, a state automaton is used when operating a high-pressure discharge lamp on a ballast operated by means of a microprocessor in order to prevent certain malfunctions.... Agent: Viering, Jentschura & Partner - Osr

20090179572 - Light-emitting device: The amplitude of a potential of a signal line is decreased and a scan line driver circuit is prevented from being excessively loaded. A light-emitting device includes a light-emitting element; a first power supply line having a first potential; a second power supply line having a second potential; a first... Agent: Cook Alex Ltd

20090179573 - Organic electroluminescent display: An organic electro luminescent display with auxiliary layers on a cathode contact and an encapsulating junction region to easily remove polymer organic layers of the junction. The organic electro luminescent display has the first electrode formed on a lower insulating substrate, a pixel defining layer formed to make some portions... Agent: Robert E. Bushnell & Law Firm

20090179574 - Backlight module of light emitting diode: This invention provides a dynamic control method for LED backlight module, in which each LED of a backlight module is connected with respective parallel circuit, and each parallel circuit is connected in series together. Then, only a single current source is used to supply the required power for light emitting... Agent: Rosenberg, Klein & Lee

20090179575 - Shunting type pwm dimming circuit for individually controlling brightness of series connected leds operated at constant current and method therefor: A Pulse Width Modulation (PWM) dimming circuit for individually controlling brightness of series connected Light Emitting Diodes (LEDS) operated at constant current has a first plurality of switching devices, a signal switching device of the first plurality coupled to an individual LED of series connected LEDS to control a brightness... Agent: Weiss & Moy PC

20090179576 - Uni-directional light emitting diode drive circuit in pulsed power series resonance: The present invention is disclosed by that the series connected capacitive impedance and inductive impedance are powered by a pulsed power, thereby to produce the bi-directional divided power in series resonance at each impedance, and be rectified by a rectifier device to provide DC power output to drive the unidirectional... Agent: Rabin & Berdo, PC

20090179577 - Wireless display panel having light status indicators: A wireless display panel for an electronic system includes a plurality of light status indicators. Each light status indicator includes a first chamber attached to the wireless display panel and having an excitable gas inside an end of thereof and a second chamber attached to a surface of the electronic... Agent: Cantor Colburn LLP - IBM Tuscon Division

20090179579 - Bi-directional light emitting diode drive circuit in bi-directional divided power impedance: The present invention uses the mutually series connected resistive, or inductive, or capacitive impedance to divide the voltage of bi-directional power source, thereby using the divided power of the impedance component to drive the bi-directional conducting light emitting diode in parallel connection at the two ends of the impedance.... Agent: Rabin & Berdo, PC

20090179578 - Bi-directional light emitting diode drive circuit in pulsed power series resonance: The present invention comprises of a first impedance constituted by the capacitive impedance and a second impedance constituted by the inductive impedance, wherein the first and second impedance after series connection appears in the series resonance status to generate a bi-directional divided power in series resonance to drive the bi-directional... Agent: Rabin & Berdo, PC

20090179580 - Bi-directional light emitting diode drive circuit in pulsed power non-resonance: The present invention uses capacitive, inductive, or resistive impedance to constitute the first impedance, and the capacitive and inductive impedances in parallel connection which will not produce parallel resonance to constituted the second impedance, and is characterized in that the first and second impedance in series connection is configured for... Agent: Rabin & Berdo, PC

20090179581 - Inverter circuit, backlight assembly and liquid crystal display having the same, and method thereof: A backlight assembly prevents abnormal discharge of a device using a high voltage to drive a discharge tube such as CCFL. An inverter circuit includes an inverter transformer supplying an AC high voltage to a plurality of discharge tubes, and a plurality of balance transformers. First terminals of primary coils... Agent: Cantor Colburn, LLP

20090179582 - Uni-directional light emitting diode drive circuit in bi-directional power series resonance: The present invention uses series connected capacitive impedance and inductive impedance, whereof the inherent series resonance and the frequency of the bi-directional power can produce series resonance, thereby the bi-directional divided power being generated at the two ends of the capacitive impedance and inductive impedance is rectified to output DC... Agent: Rabin & Berdo, PC

20090179583 - Digitally synchronized integrator for noise rejection in system using pwm dimming signals to control brightness of cold cathode fluorescent lamp for backlighting liquid crystal display: An apparatus and method for controlling the operation of a utility device, such as a cold cathode fluorescent lamp that is powered in accordance with a pulse width modulation (PWM) signal, includes an analog sensor which monitors the utility device to derive an output signal representative of the PWM signal.... Agent: Fogg & Powers LLC

20090179584 - Dc/dc converter: A first transistor and a second transistor are disposed in series between a first terminal and a ground terminal. A diode is disposed in parallel with the first transistor in a direction such that the cathode thereof will be on the first terminal side. An inductor is disposed between a... Agent: Cantor Colburn, LLP

20090179585 - Uni-directional light emitting diode drvie circuit in bi-directional divided power impedance: The present invention transfers AC electric power to mutually series connected resistive impedance components, inductive impedance or capacitive impedance to divide the voltage of the power source, whereby the divided power of each impedance is rectified by the rectifier device to be the uni-directional DV power for driving the unidirectional... Agent: Rabin & Berdo, PC

20090179586 - Lighting device with user interface for light control: The present invention relates to a lighting device (1) comprising a lighting unit (2) and a user interface (3) for controlling the lighting color and/or intensity of the lighting unit (2). The user interface (3) comprises a physical object (4), which is shaped as a polyhedron, for instance a cube.... Agent: Philips Intellectual Property & Standards

20090179587 - Method for dimming a light generatng system for generating light with a variable color: A method for dimming an illumination system (20) capable of emitting light (L) with a variable color is described. The illumination system (20) comprises three dimmable light sources (21, 22, 23) generating respective lights (L1, L2, L3) having respective, mutually different colors (C1, C2, C3). The method comprises the step... Agent: Philips Intellectual Property & Standards

20090179588 - Outdoor lighting device: An outdoor lighting device includes a housing, at least one power supply device and at least one arrayed lighting unit. The housing has a surface forming at least one reflection zone and he reflection zone includes a lens. The power supply device is arranged inside the housing and has a... Agent: Rosenberg, Klein & Lee

20090179589 - Arrangement provided with a voltage converter for supplying voltage to an electrical charge and associated method: The invention specifies an arrangement with a voltage converter (1) for supplying power to an electrical load (2) having a current sink (3), a prediction unit (5) and a comparator (6) and also an associated method. The voltage converter (1) can be connected to a voltage source and drives a... Agent: Fish & Richardson PC

20090179590 - Bi-directional light emitting diode drive circuit in pulsed power parallel resonance: The present invention is characterized by using capacitive, inductive or resistive impedance to constitute the first impedance which is series connected with the second impedance constituted by parallel connecting the capacitive and inductive impedances that appears parallel resonance with the pulsed period to receive pulsed power, thereby to form a... Agent: Rabin & Berdo, PC

20090179594 - Bi-directional light emitting diode drive circuit in bi-directional power parallel resonance: The present invention uses the capacitive, or inductive, or resistive impedance component to constitute the first impedance, and the parallel connected capacitive and the inductive impedance components in parallel resonance to constitute the second impedance; and is characterized as that the first impedance and the second impedance in series connection... Agent: Rabin & Berdo, PC

20090179593 - Bi-directional light emitting diode drive circuit in bi-directional power series resonance: The present invention uses the capacitive impedance component to constituted the first impedance and the inductive impedance component to constituted the second impedance, which is characterized as that the first and second impedances in series connection is configured to appear series resonance with the inputting bi-directional power to form a... Agent: Rabin & Berdo, PC

20090179592 - Uni-directional light emitting diode drive circuit in pulsed power non-resonance: The present invention uses the capacitive, inductive, or resistive impedance component to constitute the first impedance, and uses the inductive impedance component and capacitive impedance component which will not produce parallel resonance after parallel connection to constitute the second impedance, whereby the first impedance and the second impedance are series... Agent: Rabin & Berdo, PC

20090179591 - Uni-directional light emitting diode drive circuit in pulsed power parallel resonance: The present invention uses the capacitive, inductive, or resistive impedance component to constitute the first impedance, and uses the inductive impedance component and capacitive impedance component which produce parallel resonance after parallel connection to constitute the second impedance, whereby the first impedance and the second impedance are series connected for... Agent: Rabin & Berdo, PC

20090179595 - Lighting control method having a light output ramping function: A lighting control method for maintaining substantially uniform light output from an LED light source during a warm-up period. A ramp duty cycle function gradually increases the duty cycle of an LED drive output signal during the warm-up period of the LED light source.... Agent: Kusner & Jaffe Highland Place Suite 310

20090179597 - Gaming machine and a network of gaming machines: The present invention relates to a gaming machine having a light source and one or ideally a series of lighting positions that are illuminated, via optical pathways that are suitably in the form of optical fibres that transmit light from the light source to the or each lighting position. The... Agent: Mcandrews Held & Malloy, Ltd

20090179596 - Integrated lighting control module and power switch: A lighting system (300) includes a light source (320) and a switch (310) configured to receive input power (305) and provide switched power A control module (304) is configured to receive the switched power and control the light source (320). The control module (340) is further configured to provide the... Agent: Philips Intellectual Property And Standards

20090179598 - Electronic ballast with integral shutdown timer: The present invention provides, in one embodiment, a gas discharge lamp ballast with an integral shutdown timer. The ballast includes a circuit for receiving AC power, a converter circuit for converting the AC power to DC power and a square wave oscillator powered from the DC power. A resonant circuit... Agent: Bruzga & Associates

20090179599 - Methods for diagnosing and automatically controlling the operation of a particle accelerator: Methods are described wherein the signals from various sensors that monitor parameters such as beam position, beam intensity at each turn, number of turns, extracted current, extracted beam profile in space and energy are used to determine the effect of the variation of different parameters that control the operation of... Agent: Foley Hoag, LLP Patent Group, World Trade Center West

20090174330 - Circuit arrangement and method of driving a high-pressure gas discharge lamp: A circuit arrangement (1, 1′, 1″) for driving a high-pressure gas discharge lamp (2) is described, which has a first terminal (x1) for a first voltage potential, a second terminal (x2) for a second voltage potential, and a third terminal (x4) for applying a third voltage potential for igniting the... Agent: Philips Intellectual Property & Standards

20090174331 - Backlight device: A circuit to appropriately adjust the emission intensity of LEDs of various colors. By means of a first optical sensor 11, the detection range of which includes the peak wavelengths of LEDs 10R, 10G, and 10B of multiple colors and the detectable peak wavelength of which is shorter than the... Agent: Texas Instruments Incorporated

20090174332 - Colour temperature and colour location control for a light: The present invention relates to a method for providing control signals for a light whose colour or colour temperature is variable. The invention also relates to a corresponding control apparatus and a corresponding lighting system. In the method, a series of at least three colour locations (F1, F2, F3) is... Agent: Cantor Colburn, LLP

20090174333 - Display device and electronic device: A display device where the influence of variations in current of the light emitting element due to changes in ambient temperature and changes with time can be suppressed. The display device of the invention has a light emitting element, a driving transistor connected in series to the light emitting element,... Agent: Fish & Richardson P.C.

20090174334 - Apparatus for radiating an object with uv radiation: An apparatus for radiating an object with UV-radiation, the apparatus comprises a series arrangement of an incandescent lamp (LA1) and a gas discharge UV lamp (L2) which generates at least UV light. The series arrangement is arranged for receiving current (IP) from an AC power source (PS). A filament of... Agent: Philips Intellectual Property & Standards

20090174335 - High-voltage lamp-ignition piezoelectric oscillator: The present invention discloses a high-voltage lamp-ignition piezoelectric oscillator, wherein a piezoelectric capacitor is connected to an LC resonance circuit in parallel to transform power. The LC resonance circuit is used to generate resonance. Voltage is applied to the piezoelectric capacitor to deform the piezoelectric material due to the inverse-piezoelectric... Agent: Sinorica, LLC

20090174336 - Piezoelectric cascade resonant lamp-ignition circuit: The present invention discloses a piezoelectric cascade resonant lamp-ignition circuit, which uses the intrinsic capacitors of a piezoelectric transformer as piezoelectric capacitors. One lamp is cascaded to one set of the piezoelectric capacitors. Several sets of the piezoelectric capacitors and a resonant inductor are cascaded to form a resonant lamp-ignition... Agent: Sinorica, LLC

20090174337 - Led circuits and assemblies: An AC-driven LED circuit 10 includes a first parallel circuit 12 having a first branch 14 and a second branch 16 which connect at first and second common point 18, 20. The common points 18, 20 provide input and output for an AC driving current from a driver of the... Agent: Factor & Lake, Ltd

20090174338 - 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 CLK sent from oscillator 18 during the ramping up/down of pulse-lighting of the LEDs. DAC... Agent: Texas Instruments Incorporated

20090174339 - High-efficiency single-ended forward-flyback electronic driver for barrier discharge lamps: An electronic circuit topology (1) for driving a predominantly capacitive load (2) with a primary circuit with several components, a secondary circuit with a predominantly capacitive load (2), and a transformer device (4) with a primary side (TX 1a) and a secondary side (TX 1b), connecting the primary circuit with... Agent: Philips Intellectual Property & Standards

20090174341 - Cold-cathode fluorescent lamp (ccfl) current control circuit: A circuit to control an AC lamp current provided by an input AC voltage supply to a cold-cathode fluorescent lamp (CCFL). The circuit includes a capacitor connected in series between the AC voltage supply and one terminal of the CCFL, the capacitor biasing the CCFL with the AC lamp current;... Agent: Ostrolenk Faber Gerb & Soffen

20090174340 - Direct-current power supply device, power supply device for driving led and semiconductor integrated circuit for controlling power supply: Disclosed is a direct-current power supply device, including: an inductor; a switching element to intermittently supply a current to the inductor; an external terminal to which an output current of an external unit is fed back; a control circuit to generate a pulse signal having a pulse width corresponding to... Agent: Frishauf, Holtz, Goodman & Chick, PC

20090174342 - Electronic light generating element light bulb: The present system for driving an electronic light generating element, includes: (i) input terminals, (ii) an input circuit coupled to the input terminals and operable to convert a sinusoidal signal to a signal independent of negative current attributes, (iii) a switch control circuit coupled to the input circuit and operable... Agent: Cantor Colburn, LLP

20090174343 - Multiple led driver: A driver circuit driving at least a first light emitting diode. The driver circuit includes: a first bypass current source coupled in parallel to the first light emitting diode. The first bypass current source and the first light emitting diode form a first parallel circuit. A main current source is... Agent: Slater & Matsil LLP

20090174347 - Direct-current power supply device, power supply device for driving led and semiconductor integrated circuit for driving power supply: Disclosed is a direct-current power supply device, including: an inductor; a switching element to intermittently supply a current to the inductor; an output terminal connected to an external unit; a rectifying element connected between the inductor and the output terminal; a PFM comparator to generate a first pulse signal having... Agent: Frishauf, Holtz, Goodman & Chick, PC

20090174346 - Lighting apparatus for a gaming machine cabinet: A lighting apparatus for a gaming machine cabinet comprising: a spot light source which emits light relative to a central emission axis; and a translucent diffuser spaced from the spot light source, the diffuser comprising an inner portion located so as to intercept light emitted along the emission axis and... Agent: Hanley, Flight & Zimmerman, LLC

20090174344 - Offline control circuit of led driver to control the maximum voltage and the maximum current of leds: An offline control circuit of LED driver controls the maximum voltage and the maximum current of a plurality of LEDs. A switching circuit generates a plurality of LED currents through a transformer. A voltage-feedback circuit generates a voltage loop signal in response to the voltage across the LEDs. A current-feedback... Agent: Dr. Banger Shia

20090174345 - Power supply circuit: A power supply circuit is proposed for supplying current to a pair of white LEDs connected in series. The circuit comprises a DC-DC power converter, with a charge pump coupled to the output of the DC-DC power converter. A super capacitor is coupled to the charge pump to be charged... Agent: Texas Instruments Incorporated

20090174348 - Motion controlled lamp: A light or lamp comprises a plurality of light sources, each said light source for emitting light of different color upon activation; and an electrical circuit connected to the light sources for alternately activating each light source responsive to successive accelerations, such as changes in direction of movement or vibrations,... Agent: Calif Kip Tervo

20090167183 - Plasma lamp with dielectric waveguide: A dielectric waveguide integrated plasma lamp is disclosed for powering a small and bright bulb with a diameter of a few millimeters. The lamp is contained within a high dielectric constant material which guides the microwaves to the bulb, provides heat isolation to the drive circuit, contains the microwaves, provides... Agent: Schwegman, Lundberg & Woessner, P.A.

20090167184 - Compact fluorescent lamp with mechanical support means and starting aid: The compact fluorescent lamp comprises a bulb shaped outer envelope enclosing a discharge tube having a coiled configuration and a ballast unit for controlling the current in the tube. The lamp further comprises at least one joint mechanical support and starting aid means for positioning the discharge tube and the... Agent: Fay Sharpe LLP

20090167185 - Light emitting diode device and mobile electronic device using the same: A mobile electronic device (20) includes an electrical heating element (26) and a light emitting diode device (10) installed therein. The light emitting diode device includes a temperature sensor (12) in contact with the electrical heating element, a processor (14), an electrical power source assembly (16), and a light mixer... Agent: PCe Industry, Inc. Att. Steven Reiss

20090167186 - Leds tricolor power signal: A signal is described herein that provides light output for automotive, rail, ship traffic and/or illumination control that includes a light emitting diode (LED) array, wherein the LED array includes three groups of disparate colored LEDs. A power supply unit provides independent power to each of the three LED groups.... Agent: Fay Sharpe LLP

20090167187 - Lighting controller of lighting device for vehicle: A lighting controller of a lighting device for a vehicle includes M (M is an integer of one or more) switching regulators for supplying driving currents to first to Nth (N is an integer of one or more) semiconductor light sources; first to Nth current driving portions; a temperature detector;... Agent: Osha Liang L.L.P.

20090167188 - Method and device for controlling the light functions in front headlamps for road vehicles: Future vehicle headlamps will provide light functions, such as, for example, town light, country road light, motorway light, full beam, poor weather light, etc. A method and a device is therefore provided with which the light functions of vehicle headlamps are controlled in a reliable manner. The device essentially comprises... Agent: Patent Central LLC Stephan A. Pendorf

20090167189 - Standard illuminant apparatus capable of providing standard led light: A standard illuminant apparatus suitable for providing a standard optical property of LED for measurement is provided. The standard illuminant apparatus comprises an illuminant module and light shape control module, wherein the illuminant module is capable of providing light, and the light shape control module is capable of receiving the... Agent: Wpat, PC

20090167190 - Apparatus and method for a light-emitting diode lamp that simulates a filament lamp: Disclosed herein is a circuit assembly comprising a light-emitting diode (LED) load in combination with a filament bulb simulation circuit, the filament bulb simulation circuit being configured to simulate a load that would be presented to a monitoring system by a filament bulb. In this manner, a filament bulb can... Agent: Thompson Coburn LLP

20090167191 - Light emitting device: A light emitting device 1 is adapted, with a distributed power supply voltage, to turn on a light emitter 7, while timing a continuous conduction time with a pulse generating circuit 2, a frequency dividing circuit 3, and a counting memory circuit 4, to flash the light emitter 7 on... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090167192 - Active frame system for ambient lighting using a video display as a signal source: Active diffuser frame system (A) for a video display (D) provides ambient lighting in viewer object mode and relies on real-time video input only, with no separate lighting script required. The system uses a controllable light source, and multiple inputs to improve realism and fidelity. Video inputs include actual display... Agent: Philips Intellectual Property & Standards

20090167193 - Image-processing equipments, image-processing method, program, and recording medium: An image display apparatus which represents a grayscale by pulse-width modulation driving of a display element includes: a light source which illuminates the display element; a light source driving part which drives the light source; a photodetector which detects the emission intensity of light emitted from the light source; a... Agent: Ratnerprestia

20090167194 - Light emission control system and image display system: The present invention provides a light emission control system including a plurality of light emitting modules each including a plurality of light emitting elements and each being a unit to be controlled, light emitting module controllers each provided for each of the light emitting modules and controlling a corresponding light... Agent: Frommer Lawrence & Haug LLP

20090167195 - Light source system: A light source system capable of controlling a light emission amount of a light source section more accurately while keeping manufacturing costs low is provided. The light source system includes a light source, a light-sensing device detecting light from the light source, a calculation means, and a light source control... Agent: Rader Fishman & Grauer PLLC

20090167196 - Power supply for light emitting diode device: A power supply (100) includes a generator (20) and a water circulatory channel. The generator includes an impeller (201) and an armature (203). The water circulatory channel contains water therein. The water flows along a predetermined direction in the water circulatory channel. The impeller of the generator is positioned to... Agent: PCe Industry, Inc. Att. Steven Reiss

20090167197 - Driver and method for driving leds on multiple branch circuits: Techniques pertaining to driving LEDs on multiple branches of a circuit are disclosed. According to one aspect of the present invention, an LED drive circuit includes a boost circuit configured for receiving an input voltage and providing an output voltage according to a control signal, a selector configured for alternatively... Agent: Silicon Valley Patent Agency

20090167198 - Light string having shunt circuitry arranged on husk of light bulb assembly: Provided is a light string with a light bulb having additional shunt circuitry. The light string is comprised by a plurality of light bulb units electrically interconnected by conductive wires. Each light bulb unit includes a socket assembly in which a husk along with a light bulb is electrically assembled,... Agent: Joe Mckinney Muncy

20090167199 - Front-stage voltage-adjustment inverter: The present invention discloses a front-stage voltage-adjustment inverter, which comprises: a front-stage voltage-adjustment unit, a duty cycle modulation unit, a half-bridge driving unit and a transformer unit. The front-stage voltage-adjustment unit receives an input power, a dimming signal and a feedback signal. The front-stage voltage-adjustment unit varies the voltage of... Agent: Joe Mckinney Muncy

20090167200 - Switching power converter with controlled startup mechanism: A switching power converter with a controlled startup mechanism includes a switching stage which provides a voltage Vout at an output node in response to a switching control signal, with the output node adapted for connection to a non-linear load. A feedback network compares a signal which varies with the... Agent: Koppel, Patrick, Heybl & Dawson

20090167201 - Light source and methods for microscopy and endoscopy: In one example embodiment, a drive probe is coupled to the lamp body to provide the primary power for ignition and steady state operation of the lamp. Feedback may be used to adjust frequency in response to changing conditions of the lamp during startup. A phase shifter may be used... Agent: Schwegman, Lundberg & Woessner, P.A.

20090167202 - 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-packaged... Agent: Factor & Lake, Ltd

20090167203 - Ac-powered, microprocessor-based, dimming led power supply: A dimmable, light-emitting diode (LED) power supply adapted to provide a direct current (DC), constant current (“constant current source”) from a conventional, phase-controlled 120 VAC, 60 Hz power source is disclosed. The constant current source of the present invention utilizes two processes to control dimming. In a first process, the... Agent: Texas Instruments Incorporated

20090167204 - Lamp control circuit and method of driving a lamp: In a method of driving a lamp using a lamp control circuit, the lamp control circuit comprises a communication circuit and a lamp driving circuit. The lamp driving circuit is configured to drive a lamp in accordance with a number of lamp operating parameters. The method comprises providing a lamp... Agent: Philips Intellectual Property & Standards

20090167205 - Led drive circuit and method for using same: In various embodiments, there is provided an LED drive circuit and a method for using the same. Specifically, the present disclosure is directed to an LED drive circuit for pulse oximeters. In an embodiment, the LED drive circuit includes a current mirror configured to provide drive current to an LED... Agent: Nellcor Puritan Bennett LLC Attn:IPLegal

20090167207 - Dimmable operating device having internal dimming characteristic: The invention relates to an operating device (BG) for lamps (LM), comprising an interface (IFi), by means of which the device (BG) may be provided with external dimming values. The device (BG) converts said provided external dimming values into internal dimming values on the basis of which the control of... Agent: Marshall, Gerstein & Borun LLP

20090167206 - Lighting device: A lighting device (1) having at least two light sources (5), and in particular LED's, having a light distributing device (3) for distributing the light emitted by the light sources (5), the light sources (5) being arranged inside the light distributing device (3), having a diffuser surface (4) arranged on... Agent: Philips Intellectual Property & Standards

20090167208 - Method for supplying a dc load via multiple parallel power supplies and a power supply therefor: The present invention relates to a lamp illumination system and method for sharing power to an electrical DC load that exceeds a capacity of a first DC power supply between the first DC power supply and a second DC power supply such that in combination all of the power supplies... Agent: Oliff & Berridge, PLC

20090167209 - Circuit arrangement and method for operating at least one electric lamp: A circuit arrangement for operating at least one electric lamp having an inverter has at least one first and one second bridge transistor arranged in series with one another, a first drive circuit for the first bridge transistor; a second drive circuit for the second bridge transistor; the and second... Agent: Osram Sylvania Inc

20090167210 - Current shaping of an led signal for interfacing with traffic control equipment: A system creates a desired current level within a traffic signal. A power supply unit receives an external power signal and transforms the power signal to a lamp current. A pulse generator monitors the value of the lamp current and automatically adjust the power usage of the current sink circuit... Agent: Fay Sharpe LLP

20090167211 - Method of driving a discharge lamp, and driving unit: The invention describes a method of driving a discharge lamp (1), wherein a value of pressure (Prlamp) in the lamp (1) is determined during operation of the lamp (1) at a dimmed power level, a correction factor (K, KR, KG, KB) is determined based on the dimmed power level pressure... Agent: Philips Intellectual Property & Standards

20090167212 - Driving circuit and method for preventing lamp from blasting: In a driving circuit and method for preventing a lamp from blasting, a driving circuit includes a control circuit module, a voltage conversion circuit module, a driving module and a feedback circuit. The control circuit module outputs a first control signal according to a predetermined setting. The voltage conversion circuit... Agent: Hdls Patent & Trademark Services

20090167213 - Dancing guide floor using led matrix displays: The present inventions concerns a display system (2) for displaying multiplex information, whereby an individual selection of information is individually addressed to a different user or user groups, whereby the display system for displaying multiplex information comprises at least one display panel of a plurality of light emitting dot-like means... Agent: Philips Intellectual Property & Standards