Electric lamp and discharge devices: systems inventions 09/09

20090236989 - Magnetron: The present invention aims to provide a magnetron in which the getter material is used under the temperature range in which the gettering effect is sufficiently exerted, and even if the getter material evaporates, the vapor of the getter material is not vapor-deposited on the stem ceramic and the antenna... Agent: Mcdermott Will & Emery LLP

20090236990 - Electric discharge light-regulation matching...: A electric discharge light regulation matching circuit that operates with filaments includes a resonance unit, a converter unit, a charge circuit, a half-bridge output unit and a lamp. The converter unit is connected to the resonance unit to convert an AC current to a DC current. The charge circuit, which... Agent: Browdy And Neimark, P.l.l.c. 624 Ninth Street, Nw

20090236991 - Magnetron: A magnetron has an anode 3 surrounding a tubular hollow cathode 4 which contains a heater 9. The cathode is supported by radial arms at each end. At one end of the cathode, the heater is supplied with one terminal of its D.C. supply by means of a radial arm... Agent: Venable LLP

20090236992 - Led lamp and production method of the same: An LED lamp including a glass lampshell and a stem assembly with one end inserted into the glass lampshell. The stem assembly comprises a glass trumpet tube with one end sealed within the glass lampshell to form a cavity within the glass lampshell and within the cavity a supporting component... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090236993 - Inspection circuit, electro-optic device, and electronic apparatus: An inspection circuit for inspecting an electro-optic device that includes a data line, a scanning line, a pixel portion, a driving circuit, and a first terminal portion through which a first power supply voltage is supplied to the driving circuit. The inspection circuit includes an inspection line electrically connected to... Agent: Workman Nydegger 1000 Eagle Gate Tower

20090236994 - Illumination system comprising a plurality of light sources: An illumination system (1) comprises a plurality of light sources (11, 12, 13), each provided with a driver (21, 22, 23); a controller (30) for generating control signals (Sc1, Sc2>Sc3) for controlling the respective drivers; temperature feed forward means (60, 61, 62, 63, 81) for establishing a temperature feed forward... Agent: Philips Intellectual Property And Standards

20090236995 - Ac power feedback control device: An AC power feedback control device for a vacuum fluorescent display is provided. In the AC power feedback control device, the Class-D drivers are driven by the PWM controller so as to generate a sine wave voltage. After being filtered by the LPFs, the sine wave voltage is ready for... Agent: Volpe And Koenig, P.C.

20090236996 - Drive circuit for driving indicators in computer system: A circuit is used to indicate different statuses of a component of a computer system. The circuit includes a port, an indicating device, and a control circuit. The port outputs different signals corresponding to different statuses of the component. The indicating device includes a first indicator and a second indicator... Agent: PCe Industry, Inc. Att. Steven Reiss

20090236998 - Driving method and driving device for discharge lamp, light source device, and image display device: A driving method for a discharge lamp that lights by performing discharge between two electrodes while alternately switching a polarity of a voltage applied between the two electrodes includes: modulating an anode duty ratio, which is a ratio of an anode time for which one of the electrodes operates as... Agent: Advantedge Law Group, LLC

20090236997 - Led control circuit and method, and insect resistive led lamp: A LED control circuit and method generate a high frequency clock signal with a fixed duty for a LED driver, to supply a switching current to drive a LED to emit light flashing at a modulated high frequency and with a fixed duty. By controlling the flashing LED light within... Agent: Rosenberg, Klein & Lee

20090236999 - Discharge lamp lighting device and light fixture: In a discharge lamp lighting device that, at a time of starting a discharge lamp La, alternately repeats periods HF1 and HF2 while high frequency voltages are being outputted, in which a resonant circuit performs resonant operations, and periods FB1 and FB2 while square wave voltages are being outputted, and... Agent: Greenblum & Bernstein, P.L.C

20090237001 - Light output device and image forming apparatus including the same: A light output device includes a feedback-signal generating unit configured to generate a feedback control signal for maintaining output power of the light at a predetermined value. The feedback-signal generating unit generates the feedback control signal in a gradually rising manner and supplies the generated feedback control signal to the... Agent: Banner & Witcoff, Ltd. Attorneys For Client No. 016689

20090237000 - Pdp driving apparatus and plasma display: A PDP driving apparatus drives a plasma display panel (PDP) having sustain electrodes, scan electrodes, and address electrodes. The PDP driving apparatus includes a high side switch element and a low side switch element, those electrically coupled in series. A specific pulse voltage is applied from a junction point of... Agent: Greenblum & Bernstein, P.L.C

20090237002 - Method and system for controlling light fixtures: A system and method for controlling a plurality of light fixtures to create light and music, including a processor having a memory. Software is loaded in the memory and is executable by the processor to operate a plurality of light fixtures and at least one music speaker. At least one... Agent: Mcguirewoods, LLP

20090237004 - Display apparatus: A circuit for controlling illumination means in a display includes illumination means arranged in a series-connection that are supplied with an essentially constant current. For individually controlling the illumination means, switches are provided for bypassing individual illumination means, maintaining the essentially constant current in the series-connection. The switches are floating... Agent: Thomson Licensing LLC

20090237003 - Feedback controlled illumination system having an array of leds, and a detector among the leds: The present invention relates to an illumination system having an array of differently coloured LEDs, a plurality of collimators, wherein each collimator holds at least one LED, a light mixing element, arranged to mix light generated by the LEDs into a mixed light that is emitted from the illumination system,... Agent: Philips Intellectual Property & Standards

20090237005 - Electronic device capable of controlling led brightness and method thereof: An electronic device capable of controlling light-emitting diode (LED) bright is provided. The electronic device includes a signal producing unit for producing an operation signal; a Micro Control Unit (MCU) configured for outputting a normal brightness control signal according to the operation signal, and outputting a ultra brightness control signal... Agent: PCe Industry, Inc. Att. Steven Reiss

20090237006 - Apparatus, system, and method for device group identification: An apparatus, system, and method are disclosed for identifying and differentiating among multiple groups of devices, comprising at least two LEDs, a controller, and a blending medium. The at least two LEDs emit a wavelength of light that is different from a wavelength of each other LED. The controller drives... Agent: Kunzler & Mckenzie

20090237008 - Left/right turn indicator for vehicle: In response to a left turn operation of a turn signal lever when left and right headlights provided on the left and right sides of a front part of a vehicle are turned on, a left turn signal light is turned on, and, at the same time, a left main... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090237007 - Light-emitting diode driving circuit and secondary side controller for controlling the same: A light-emitting diode (LED) driving circuit and a secondary side controller for controlling the same control an output voltage of the LED driving circuit at a first driving voltage or a second driving voltage. When the output voltage is controlled at the first driving voltage, an LED module driven by... Agent: Schmeiser, Olsen & Watts

20090237009 - Discharge lamp lighting device, control method thereof, and projector: A discharge lamp lighting device includes: a power control circuit outputting DC current; an AC conversion circuit generating and outputting discharge lamp driving AC current by inverting the polarity of the DC current at a predetermined timing; a control circuit performing an AC conversion control process of controlling a polarity... Agent: Oliff & Berridge, PLC

20090237010 - End-to-end lamp assembly and method of manufacturing same: Disclosed herein are systems and methods for a lamp assembly having a novel design for fitting two or more tube-shaped lamps end-to-end. Such an end-to-end structure may be constructed for use inside a single protective sleeve, such as one constructed of transparent quartz in embodiments where the assembly is used... Agent: Baker & Mckenzie LLP Patent Department

20090237011 - Illumination device and fixture: Technologies are described herein for an illumination device and a corresponding fixture device. The illumination device includes a luminary module for the emission of light and an identification circuit containing identifying data, while the fixture device includes a driver module for supplying power to the illumination device and a controller... Agent: Hope Baldauff Hartman, LLC

20090230868 - High lumen output cold cathode fluorescent lamp: In one embodiment, when the current density at the cathode is less than 0.2 mA/mm2, cathode sputtering is avoided or reduced to such an extent that the life time of the CCFL is not significantly adversely affected. In another embodiment, the internal diameter (ID) of the CCFL tube is within... Agent: Davis Wright Tremaine LLP - San Francisco

20090230869 - Transformer: To provide a transformer in which costs of a backlight device are reduced by lighting a lamp without requiring an additional member for connecting the lamp to an inverter. A transformer according to the present invention includes terminal bases and in which terminal pins are implanted, a bobbin formed by... Agent: Oliff & Berridge, PLC

20090230870 - Electronic ballast for high intensity discharge lamps: The present High Intensity Discharge electronic lamp ballast uses a “set of controls” that can be performed by controlling energy delivery by the “line side converter” to the “lamp side inverter”. This set of controls comprises: 1) open circuit voltage control, 2) breakdown voltage amplitude control, 3) glow-to-arc transition current... Agent: Patton Boggs LLP

20090230871 - Organic light emitting display device and method of driving the same: Provided are an organic light emitting display device coupled to a photoelectric transistor. The organic light emitting display device includes an anode and a cathode separated from each other, a plurality of organic material layers formed between the anode and the cathode and including an organic light emitting layer, a... Agent: Robert E. Bushnell & Law Firm

20090230872 - Display apparatus: The display apparatus (1) is provided with: a plurality of intermediate films (120), each of which reflects light including at least a corresponding light component with a predetermined wavelength from among incoming light; and a plurality of light receiving elements (130), each of which receives the incoming light through the... Agent: Young & Thompson

20090230873 - Driving circuit for light emitting diodes: A driving circuit includes a DC-to-DC voltage converter, a current source, a detector and a feedback control circuit. The DC-to-DC voltage converter has a switch and generates a driving voltage on first ends of the series of light emitting diodes, in which a magnitude of the driving voltage is correlated... Agent: Hayes Soloway P.C.

20090230874 - Led driver with segmented dynamic headroom control: Techniques for dynamic headroom control in a light emitting diode (LED) system are disclosed. An output voltage is provided to drive a plurality of LED strings. A feedback controller monitors the tail voltages of the LED strings to identify the minimum tail voltage and adjusts the output voltage based on... Agent: Larson Newman & Abel, LLP

20090230877 - Discharge lamp lighting apparatus: A discharge lamp lighting apparatus is mounted on a single circuit board. The apparatus converts a direct current into an alternating current, applies voltages of opposite phases to both ends of a discharge lamp. The apparatus includes two resonant circuits. Each of the resonant circuits includes a transformer having a... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090230879 - Driver circuit, method for operating and use of a current mirror of a driver circuit: A driver circuit, operating method, and use of a current mirror of a driver circuit is provided that includes at least one output transistor, a reference network with at least one reference transistor, a switching device, which is connected to the control input of the output transistor and to the... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090230878 - Gan-based semiconductor light-emitting element, light-emitting element assembly, light-emitting apparatus, method of manufacturing gan-based semiconductor light-emitting element, method of driving gan-based semiconductor light-emitting element, and image: A GaN-based semiconductor light-emitting element includes a first GaN-based compound semiconductor layer of n-conductivity type, an active layer, a second GaN-based compound semiconductor layer of p-conductivity type, a first electrode electrically connected to the first GaN-based compound semiconductor layer, a second electrode electrically connected to the second GaN-based compound semiconductor... Agent: K&l Gates LLP

20090230876 - Metal halide discharge lamp and metal halide discharge lamp system: [Means of Solving Problems] A metal halide discharge lamp includes a fire-resistant and light-transmitting hermetic vessel 1, a pair of electrodes 2A, 2B sealed within the hermetic vessel 1, and a discharge medium containing a halide and a rare gas and essentially not containing mercury and sealed within the hermetic... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090230875 - Method and a driver circuit for led operation: In a method and a driver circuit for operating one or more light emitting diodes, LEDs, an alternating supply current is generated and transformed to an alternating secondary winding voltage. Using rectifier means, such as diodes or synchronous switches, the alternating secondary winding voltage is converted to a substantially constant... Agent: Philips Intellectual Property & Standards

20090230880 - Driving circuit and method for light emitting diode: A driving circuit for a light emitting diode (LED) and a method thereof are provided. The driving circuit includes a voltage converting circuit and a reference voltage generator. The reference voltage generator generates a reference voltage according to the cathode voltage of the LED. The voltage converting circuit automatically adjusts... Agent: J C Patents, Inc.

20090230881 - Led driver and circuit for controlling a power switch to provide a driving voltage to at least one led: An LED driver circuit and its control circuit for controlling its power switch are provided. The LED driver includes a switch, a PWM controller, a current source and a signal controller. The switch has a first end outputting a driving voltage to at least one LED. The PWM controller provides... Agent: J C Patents, Inc.

20090230882 - Architecture and technique for inter-chip communication: The present invention involves an electrical system in which an analog signal channel passes through various integrated circuit chips (ICs). The channel can carry one or more analog signals. Each IC can modify the signal(s) passing through it and pass it on to another IC or system component. The channel... Agent: Turocy & Watson, LLP

20090230884 - Device and method for controlling a lighting system by proximity sensing of a spot-light control device and spotlight control device: The invention relates to controlling a lighting system by proximity sensing of a spotlight control device, particularly to controlling a spotlight generated by a lighting system such as a large LED lighting array by means of a spotlight control device. The invention provides a device (10) for controlling a lighting... Agent: Philips Intellectual Property And Standards

20090230886 - Driver device that stabilizes current and automatically regulates voltage of a light emitting diode: A driver device that stabilizes current and automatically regulates voltage of a light emitting diode is capable of automatically regulating the voltage and stabilizing the current in accordance with a voltage demand, so as to provide the proper voltage and the stable current, for being applied to control color and... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090230885 - Led control device: An LED controller is provided that can easily control light-on testing of LEDs. A super voltage can be added to a signal including a low voltage and a high voltage. When the super voltage is not detected, LED driving circuit is operated in normal mode. When the super voltage is... Agent: Texas Instruments Incorporated

20090230883 - Stacked led controllers: A driver for driving a plurality of light emitting diodes (LEDs) is formed of a plurality of LED controllers connected in series between a power supply and a reference voltage. Each controller drives one or more LEDs directly connected to it. Each controller has a voltage input terminal coupled to... Agent: Patent Law Group LLP

20090230888 - Discharge lamp operation device: To improve the startability of a discharge lamp by achieving a smooth transition from a glow discharge to an arc discharge. A discharge lamp lighting device comprises: a direct-current power supply 2 for supplying a voltage higher than a glow voltage of the above described discharge lamp; a down-converter 3... Agent: Lucas & Mercanti, LLP

20090230887 - Electronic ballast for a gas discharge lamp with controlled filament heating during dimming: An electronic ballast has control circuitry to operate a gas discharge lamp in both full and dimmed illumination modes. A dimming controller serves as the mechanism to permit a selection between full and dimmed illumination modes. The dimming controller signal has a dimming request range which describes the range of... Agent: Waddey & Patterson, P.C.

20090230890 - Organic electroluminescent display device and method of producing the same: An organic electroluminescent display device in which a plurality of light-emitting cells each having an organic electroluminescent portion are arranged on a substrate, wherein a plurality of organic electroluminescent portions included in the plurality of light-emitting cells include at least three organic electroluminescent portions which emit different colors, each of... Agent: Sughrue-265550

20090230889 - Voltage sensing apparatus for power regulation and over-voltage protection of discharge lamp and method thereof: The configurations of a discharge lamp system and a controlling method thereof are provided in the present invention. The proposed discharge lamp system includes a discharge lamp, a converter circuit coupled to the discharge lamp and having a switching switch, a ballast controller generating a first driving signal and controlling... Agent: Volpe And Koenig, P.C.

20090230891 - Led driver with dynamic power management: Power management in a light emitting diode (LED) system having a plurality of LED strings is disclosed. A voltage source provides an output voltage to drive the LED strings. An LED driver monitors the tail voltages of the active LED strings to identify the minimum, or lowest, tail voltage and... Agent: Larson Newman & Abel, LLP

20090230892 - Safety loop for a light fixture: A light fixture and a method for control of a light fixture is supervised by at least one thermoswitch which protects the light source by disconnecting the power supply to the light source at elevated temperature. To achieve a safety circuit in a light fixture without switching the supply circuit... Agent: Roberts Mlotkowski Safran & Cole, P.C. Intellectual Property Department

20090230893 - Multifunctional motor vehicle headlight module, in particular for the front region of a motor vehicle: A motor vehicle headlight module having at least two lighting units (1) is specified. Here, each lighting unit (1) comprises at least one light-emitting diode chip (2). Different lighting units (1) are provided here for different lighting functions. Furthermore, the motor vehicle headlight module has a common heat sink (6)... Agent: Viering, Jentschura & Partner - Osr

20090230894 - Lighting system with linked groups: A lighting system (100) includes a lighting module (110) configured to accept a light source, and a controller (120) configured to be linkable to the lighting module (110). A link between the controller (120) and lighting module (110) is establishable by exchanging between the controller (120) and lighting module (110)... Agent: Philips Intellectual Property And Standards

20090230895 - Method and device for making lighting modules part of a display device, which lighting modules have been brought randomly together: The present invention relates to a method and device for communicating data to devices which have been brought randomly together, e.g. user equipment provided to a plurality of persons grouped within a geographical area, e.g. an audience or spectators, for example as used in concerts or sports events, in particular... Agent: Bacon & Thomas, PLLC

20090230896 - Fluorescent lamp holder combination device: A fluorescent lamp holder combination device includes a main lamp holder and an auxiliary lamp holder set, which is provided with an auxiliary lamp holder. The main lamp holder is internally configured with a multifunction ballast, which is electrically connected to a conducting portion. Each of the conducting portions is... Agent: Troxell Law Office PLLC

20090224676 - Light emitting device and driving method thereof: A problem is to solve degradation with time of a light emitting element by a new method. The light emitting device of the invention has a limiter transistor which is connected to a monitoring element, and an inverter an output terminal of which is connected to a gate electrode of... Agent: Fish & Richardson P.C.

20090224677 - Ion generating light assembly: A light to screw into a standard light socket having a negative ion generator in the form of a pin. The pin design can be easily cleaned with a swab and cleaning solution such as rubbing alcohol, eliminating the need to trim or clean a brush electrode when corrosion or... Agent: Charles R. Sutton, Law Offices Of Roger C. Hsu

20090224678 - Method for compensating for the attenuation of a liquid crystal display having an led backlight and display that exhibits an attenuation compensating function: Disclosed are a method for compensating for the attenuation of a LCD having an LED backlight and a display that exhibits an attenuation compensating function. After assembling of the entire set of the display, a LCD module mounted in front of the backlight is set in a predetermined state and... Agent: Bacon & Thomas, PLLC

20090224679 - Novel high performance materials and processes for manufacture of nanostructures for use in electron emitter ion and direct charging devices: In accordance with the invention, there are electron emitters, charging devices, and methods of forming them. An electron emitter array can include a plurality of nanostructures, each of the plurality of nanostructures can include a first end and a second end, wherein the first end can be connected to a... Agent: Mh2 Technology Law Group, LLP (cust. No. W/xerox)

20090224680 - Field emission light emitting device: In accordance with the invention, there are nanoscale electron emitters, field emission light emitting devices, and methods of forming them. The nanoscale electron emitter can include a first electrode electrically connected to a first power supply and a second electrode electrically connected to a second power supply. The nanoscale electron... Agent: Mh2 Technology Law Group, LLP (cust. No. W/xerox)

20090224681 - Hybrid solar powered and grid powered lighting system: A hybrid lamp assembly according to the present invention comprises several different primary components, specifically, a lamp, lamp housing, and controller. The lamp may be powered by either of two different alternative power sources, a solar panel and grid power, and a combination of power from the solar panel and... Agent: Hancock Hughey LLP

20090224682 - Discharge lamp lighting circuit: A discharge lamp lighting circuit for supplying an AC power to a discharge lamp includes first and second converters for receiving a DC voltage and stepping up the voltage. A controlling circuit drives the first and second converters CON1, CON2 alternately at a first frequency and stops an operation of... Agent: Fish & Richardson P.C.

20090224684 - Circuit arrangement and method for the operation of high-pressure gas discharge lamps: A circuit arrangement for supplying a lamp wattage on a high-pressure gas discharge lamp in the form of an alternating current having an operating frequency, said operating frequency being frequency-modulated within large limits such that no acoustic resonances are embodied in the lamp. Amplitude modulation through the frequency response of... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20090224683 - Complimentary application specific integrated circuit for compact fluorescent lamps: In a lighting ballast there are typically several discrete components that combine to take an external AC signal and convert it to a DC signal, and back to an AC signal for powering a lamp. Several of these components can be housed on an application specific integrated circuit. By placing... Agent: Fay Sharpe LLP

20090224689 - Bipolar (dis)charging led drive method and circuit thereof: A bipolar (dis)charge LED drive method and circuit thereof which is having a diode connected in series of forward polarity with an light emitting diode before being connected in parallel with a bipolar capacitor of the same polarity to constitute the first component, and having a diode, a capacitor and... Agent: Rabin & Berdo, PC

20090224687 - Brightness control apparatus of light bulb module: An improved brightness control apparatus of a light bulb module replaces a portion of a conventional light bulb module brightness control apparatus by a signal receiving circuit, an amplification circuit and a failure protection circuit to maintain an even brightness of light emitted by each light bulb of the light... Agent: Troxell Law Office PLLC

20090224685 - Drive circuit for driving a gas discharge lamp, and method of calibrating a drive circuit: A method is described for calibrating a CDCCD circuit (100) comprising: first and second voltage input terminals (101, 102); first and second switching bridges, each comprising two controllable switches connected in series between said first and second input terminals; a series arrangement of a first inductor (131), load output terminals... Agent: Philips Intellectual Property & Standards

20090224686 - Semiconductor circuit for driving light emitting diode, and light emitting diode driving apparatus: A light emitting diode drives a semiconductor circuit in order to drive a light emitting diode that emits light by applying the output voltage of the rectifier circuit. The light emitting diode includes a switching element connected between the light emitting diode and the ground potential. An input voltage detection... Agent: Ratnerprestia

20090224688 - Unipolar (dis)charging led drive method and circuit thereof: A unipolar (dis)charge LED drive method and circuit thereof which is having a diode connected in series of forward polarity with an LED before being connected in parallel with a unipolar capacitor of the same polarity to constitute the first component, and having a diode, a capacitor and an optional... Agent: Rabin & Berdo, PC

20090224690 - Economy mode for lighting control system: A lighting control system determines a lumen output of a lighting load and selectively reduces power of that load until the power provided is the least power that can be provided to approximate the stated lumen output of that load. The system further includes a receiver/controller (“RC”) operable to selectively... Agent: Masco Corporation

20090224691 - Apparatus and method for providing an isolated set point from an input signal applied to a lamp ballast: The present application discloses a method and apparatus for providing an isolated set point from an input signal. The set point can control the amount of power applied to a lamp via a lamp ballast. An AC output signal from the ballast powers a dimming circuit. The AC signal is... Agent: Fay Sharpe LLP

20090224692 - Inverter driver and lamp driver using the same: An inverter driver controls an inverter that supplies driving voltages to a plurality of discharge lamps. The inverter driver includes a first amplifier having an output terminal, a second amplifier having an output terminal connected to the output terminal of the first amplifier, and a capacitor connected between the output... Agent: Sidley Austin LLP

20090224694 - Illumination device, in particular for microscopes: The present invention is directed to a controllable microscope illumination within a microscope system by which all essential contrasting methods in microscopy can be realized. The illumination device according to the invention comprises a plurality of individual light sources which can be regulated with respect to brightness, wherein these individual... Agent: Reed Smith, LLP Attn: Patent Records Department

20090224693 - Illumination source, illumination system, and dimming control method for the production of different colour temperatures: An illumination source 1 is capable of outputting illumination light at different color temperatures, by adjustment of luminous intensity ratios of light emitting devices 3-6, where each of the light emitting devices emits light in a corresponding one of at least four colors, the at least four colors including a... Agent: Snell & Wilmer L.L.P. (panasonic)

20090224695 - Drive circuit for driving a load with constant current: A drive circuit (1) for driving a load (3) comprises: a switched mode power supply (10) for supplying at the output (2a, 2b) a switched output current (IL); a controller (20) for controlling the power supply; a current sensor (15) for generating a current sense signal (Vi 5) representing the... Agent: Philips Intellectual Property And Standards

20090224697 - Driving method of light source apparatus for projector: A driving method for a light source apparatus for a projector using a single plate, comprises a step of supplying lamp current at a predetermined frequency to an extra-high pressure mercury lamp, a step of reversing a polarity of the lamp current to be supplied to the extra-high pressure mercury... Agent: Rader Fishman & Grauer PLLC

20090224696 - Electronic ballast with higher startup voltage: An electronic ballast with higher startup voltage includes converter with a switching circuit (40) responsive to a switching control signal (50) and operably connected to a DC bus (30); a DC controller (44) comparing a sensed DC bus voltage signal and a reference DC bus voltage signal to generate the... Agent: Philips Intellectual Property & Standards

20090224698 - Visual staying display and scan method thereof: The present invention relates to a visual staying display and a scan method thereof. The method includes the steps of: providing a plurality of first light-emitting diodes (LEDs) and a plurality of second LEDs, wherein the first LEDs and the second LEDs are interlaced arranged in a row; and driving... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090224699 - Lighting fixture with a retractable sensor module and methods of operating the same: In a second embodiment, the lighting fixture with a sensor module can be further fitted with a plug-in transmitter module. The transmitter module receives and re-directs a signal from the sensor module to activate a receiver product, including a chime or a lighting fixture, in a separate part of a... Agent: Botkin & Hall, LLP

20090224700 - Beam transport system and method for linear accelerators: A charged particle beam transport system and method for linear accelerators includes a lens stack having two electrodes serially arranged along an acceleration axis between a charged particle source, and a linear accelerator. After producing and extracting a bunch of charged particles (i.e. particle beam) from the particle source, a... Agent: Lawrence Livermore National Security, LLC

20090224701 - Charged particle accelerator: In a charged particle accelerator, voltage of several tens of kV is applied between accelerating electrodes. In such a case, electric discharge is sometimes generated between the accelerating electrodes. In the charged particle accelerator, part or entirety of the accelerating electrodes is coated with an electric discharge suppressing layer made... Agent: Mcdermott Will & Emery LLP

20090218948 - Voltage control apparatus, power supply apparatus, electron tube and high-frequency circuit system: A voltage control apparatus used for an electron tube or a power supply apparatus includes a detecting circuit for detecting current flowing through a helix electrode, a voltage-limiting circuit for controlling a potential difference between the helix electrode and the anode electrode based on a predetermined voltage level; and a... Agent: Nec Corporation Of America

20090218949 - Magnetron: The present invention provides a magnetron which can conduct more magnetic flux in the active space at the periphery of a cathode structure to thereby further improve the efficiency of a magnetic circuit. The magnetron of the present invention includes an anode cylinder on which inner wall a plurality of... Agent: Mcdermott Will & Emery LLP

20090218950 - Single sheet film filter, method of manufacturing the same, and plasma display apparatus using the same: A single sheet film filter and a manufacturing method thereof and a plasma display apparatus with the single sheet film filter capable of preventing ground problems, securing ground resistance, and reducing ground processing time. This single sheet film filter includes a conductive layer for shielding EMI arranged on one surface... Agent: Robert E. Bushnell & Law Firm

20090218951 - Lighting and control systems and methods: A lighting and control system is described. One embodiment of the lighting and control system includes a lighting node and a controller. The lighting node may include a light emitting diode configured for illumination and further configured for optical communication with the controller, a node radio device configured for radio... Agent: Perkins Coie LLP

20090218952 - Color-changing light string: A color-changing light string comprises a plurality of color-changing luminous bodies connected in series, driven by a rectifier circuit and controlled by a control switch, so that each of the luminous bodies in the light string can emit lights of various colors individually, making the entire light string sparkle with... Agent: Egbert Law Offices

20090218953 - Dimmable instant start ballast: In an instant start ballast, dimming control is provided over a range of operation in which lamps driven by the ballast do not require external cathode heating. An interface circuit (92) includes a winding (90) that is inductively coupled to windings (68, 70) of an inverter circuit (12). The interface... Agent: Fay Sharpe LLP

20090218954 - Sequential burst mode actlvation circuit: A sequential burst mode regulation system to deliver power to a plurality of loads. In the exemplary embodiments, the system of the present invention generates a plurality of phased pulse width modulated signals from a single pulse width modulated signal, where each of the phased signals regulates power to a... Agent: O2micro Inc C/o Murabito, Hao & Barnes LLP

20090218955 - Method of driving discharge lamp, driving device, and projector: A method for driving a discharge lamp that supplies an AC current to a discharge lamp having a first electrode and a second electrode so as to produce discharge and to cause the discharge lamp to emit light includes the steps of, during a steady operation in which the AC... Agent: Advantedge Law Group, LLC

20090218958 - Display panel drive apparatus: A display panel drive apparatus which can keep display brightness constant, thus preventing the occurrence of unevenness in brightness. The drive apparatus includes a current controlling voltage generating circuit to generate a current control voltage. The drive apparatus also includes a plurality of output drivers to supply brightness pulses whose... Agent: Studebaker & Brackett PC

20090218956 - Illumination control assembly for improving decaying of white light emitting diode: An illumination control assembly for decaying of a white light emitting diode comprising a light source controller for controlling the illumination of the white light emitting diode; a driving control circuit installed with an electromagnetic protection module, a pulse width modulation module, a current control unit which is connected to... Agent: Andy Kaoh

20090218957 - Methods, apparatuses, and computer program products for conserving power in mobile devices: An apparatus for conserving power in mobile devices may include a processor. The processor may be configured to determine whether a condition has been satisfied and alter a state of one or more functionalities of a device if the condition has been satisfied while leaving the state of one or... Agent: Alston & Bird LLP

20090218959 - Fuel configure ballast: A method for employing an electronic ballast. A distributor is provided with the electronic ballast. An operative parameter of the electronic ballast is configurable to operate a type of gas discharge lamp. The distributor is further provided with a configuration mechanism for configuring said electronic ballast. The electronic ballast is... Agent: Dr. Mark M. Friedman C/o Bill Polkinghorn - Discovery Dispatch

20090218960 - Step-wise intensity control of a solid state lighting system: A solid state lighting system controls overall light output level in a step-wise manner by discretely controlling the ON/OFF state of its light emitters. Solid state emitters that are ON at a given time are set and kept at a level intended to produce a desired output characteristic, e.g. at... Agent: Mcdermott Will & Emery LLP

20090218961 - Power sensing in a flashlight: A flashlight includes a battery and a circuit for operation to signal to a user that the battery voltage is at selected voltage or power level. There can be two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have... Agent: Greenberg Traurig LLP (la)