Electric lamp and discharge devices: systems inventions 04/09

20090108757 - One-piece organic light emitting diode display device with an energy-recycling feature and high contrast: This invention is an electricity generating organic light-emitting display device (OLED) consisting of vertically stacked layers including an organic light emitting device (OLED), an insulation layer, a solar cell and thin film transistors. The device can reduce the reflection of ambient light, improve the contrast of the signal, and enhance... Agent: Rabin & Berdo, PC

20090108758 - Battery-powered fluorescent lamp: A lamp includes a light source, a power tool battery for providing a DC voltage level, and a base for housing the power tool battery. A stem is coupled to the base and supports the light source. A power inverter converts the DC voltage level to an AC voltage level,... Agent: Michael, Best & Friedrich LLP

20090108759 - High effficiency and high bandwidth plasma generator system for flow control and noise reduction: A plasma generation system includes a pulse generator having at least one switch and that is configured to convert a DC voltage to a desired high frequency, high breakdown voltage pulse sufficient to break down a high-breakdown voltage gap, wherein all pulse generator switches are solely low to medium voltage,... Agent: General Electric Company Global Research

20090108760 - Trouble detecting circuit: A trouble detecting circuit includes (a) a loop circuit conducting a loop current to two discharge tube lamps in a normal state, in which the two discharge tube lamps are driven with two alternating driving voltages having phases reverse to each other by one or two secondary side windings of... Agent: Patent Docket Clerk Cowan, Liebowitz & Latman, P.C.

20090108761 - Timing controller, liquid crystal display comprising the same and driving method of liquid crystal display: A timing controller, a liquid crystal display (LCD) comprising the same and a driving method of the liquid crystal display, in which the LCD includes an LCD panel, a light source unit divided into n light-emitting blocks providing light to the LCD panel, a side member reflecting the light emitted... Agent: F. Chau & Associates, LLC

20090108762 - Lighting system: A lighting system is provided. Users can independently switch an ultrasonic detecting device in the lighting system between a disable mode and an enable mode. The lighting system, comprises: a light source for emitting a light; a detecting device for executing a detecting action to an object within a detectable... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090108763 - Pixel and organic light emitting display using the same: A pixel includes a light emitting diode, and a switching circuit that is coupled to a data line and a compensation power source line, and includes a transistor including a control terminal, a first main terminal coupled to a power source line, and a second main terminal coupled to the... Agent: Stein, Mcewen & Bui, LLP

20090108764 - Starting fluorescent lamps with a voltage fed inverter: A lamp ballast includes an inverter circuit, a resonant circuit, a control circuit, and a startup circuit. When the DC bus reaches its final value, a capacitor in the startup circuit charges to a predetermined voltage, at which point a pulse is sent to start a gate drive circuit in... Agent: Fay Sharpe LLP

20090108765 - Two-wire dimmer circuit for a screw-in compact fluorescent lamp: A dimmer switch for controlling the intensity of a dimmable screw-in compact fluorescent lamp provides smooth dimming of the fluorescent lamp and prevents flickering of the lamp due to multiple re-strikes. The dimmer switch prevents multiple re-strikes by avoiding multiple firings of a controllably conductive switching device of the dimmer... Agent: Ostrolenk Faber Gerb & Soffen

20090108766 - Circuit with improved efficiency and crest factor for current fed bipolar junction transistor (bjt) based electronic ballast: A current fed bipolar junction transistor (BJT) based inverter ballast includes base drive circuits configured to drive respective BJT switches, and high-speed drive reverse peak current limiting circuits, configured to operate in conjunction with the respective base drive circuits.... Agent: Fay Sharpe LLP

20090108768 - Backlight control device and method for controlling a driving current of an led: A backlight control device for controlling a driving current of an LED is disclosed. By controlling current outputs from current sources of a plurality of current output units, a display will be able to generate desirable backlight. Then by adjusting currents output by the plurality of current output units, brightness... Agent: North America Intellectual Property Corporation

20090108767 - Dc/dc converter device and discharge lamp lighting device: A DC/DC converter device according to the present invention includes a plurality of resonant DC/DC converters 3, connected in parallel, and a timing control circuit 5 driving the plurality of resonant DC/DC converters at substantially the same frequency with a phase shift.... Agent: Birch Stewart Kolasch & Birch

20090108770 - Light source, projector, and method for driving light source: A light source includes an arc tube having a first electrode and a second electrode that emit light by discharge between the electrodes, and a driving unit that supplies a current between the first electrode and the second electrode and can change at least a waveform of frequency and waveform... Agent: Oliff & Berridge, PLC

20090108769 - Lighting device and illumination apparatus: The present invention provides a lighting device capable of controlling finely modulated light control without stopping other processing regardless of an operation clock. The light modulation signal generating portion calculates a cycle of a PWM signal based on the lighting state of lamp, which is detected by state detecting portion... Agent: Darby & Darby P.C.

20090108772 - Color-temperature adjustable light-emitting device and control circuitry thereof: The present invention discloses a color-temperature adjustable light-emitting device and a control circuitry thereof. Therein, the light-emitting device comprises a signal control circuit, an isolation circuit, current driving circuits, light-emitting diodes, and a protection circuit. The present invention implements the signal control circuit to control the plurality of current driving... Agent: Reed Smith LLP

20090108773 - Current distributor: A current distributor that simplifies the architecture and reduces the connecting wires. According to the invention, current distributor can be utilized for distributing the current evenly through a plurality of rows of light-emitting diodes. Each respectively is coupled between a supply pin and a first current pin. The first current... Agent: Sinorica, LLC

20090108771 - Driving system for electronic device and current balancing circuit thereof: A driving system, includes: a power supply unit for providing a first current and a second current; a first transformer having a primary side coupled to the power supply unit and a secondary side coupled to a first current balancing circuit for driving a plurality of first lamps; a second... Agent: North America Intellectual Property Corporation

20090108774 - Backlight unit and liquid crystal display apparatus having the same: In a backlight unit and an LCD apparatus having the backlight unit, in which the backlight unit includes a plurality of lamps and an inverter, the inverter provides the lamps with current. The inverter reduces current provided to the lamps to turn off the lamps. Therefore, currents are gradually decreased... Agent: F. Chau & Associates, LLC

20090108775 - Led driver with adaptive algorithm for storage capacitor pre-charge: A method is provided for driving a plurality of light emitters in a plurality of output paths with each output path including at least one light emitter. The method includes the steps of applying a supply voltage level to a plurality of output paths; generating a current for each path... Agent: Texas Instruments Incorporated

20090108776 - Circuit for providing an approximately constant resistance and/or current and method therefor: A circuit can provide an approximately constant resistance value that is virtually independent of process and temperature variations. A current control circuit may use a device that tracks the changes in a corresponding device over process and temperature variations. As a result, the behavior of device may be used to... Agent: Freescale Semiconductor, Inc. Law Department

20090108777 - Devices and systems that deliver nitric oxide: The present disclosure relates to dressings, such as patches and bandages, and other devices and systems that deliver nitric oxide.... Agent: Searete LLC Clarence T. Tegreene

20090102383 - High-power microwave tube with beam spreading in the collector: The invention relates to a microwave power tube consisting of an electron gun comprising a cathode that generates an electron beam in a microwave structure of the tube, and a collector for collecting electrons from the beam. In addition, the tube comprises a magnetic device for spreading the beam in... Agent: Lowe Hauptman & Berner, LLP

20090102384 - Illuminance stabilization apparatus for vehicle headlamp: An illumination stabilization apparatus for a vehicle headlamp is disclosed. The illumination stabilization apparatus supplies stable power to a headlamp using a SEPIC, thus increasing the lifespan of a headlamp, and reducing the dimming of light generated by the headlamp.... Agent: Edwards Angell Palmer & Dodge LLP

20090102385 - Capacitively coupled plasma reactor: A capacitively coupled plasma reactor includes a plasma reactor, a capacitive coupling electrode assembly including a plurality of capacitive coupling electrodes to induce plasma discharge inside the plasma reactor, a main power supply source to supply radio-frequency power, and a distribution circuit to receive the radio-frequency power supplied from the... Agent: Mcneely Bodendorf LLP

20090102386 - Control system for liquid motion lamp: A control system for a liquid motion lamp maintains the proper temperature of liquids within the lamp to provide desired motion within the lamp, and reduces sensitivity to ambient temperature. The lamp preferably includes two heating elements, a first element for initial heating, such as a heat blanket, resistive glass... Agent: Averill & Varn

20090102387 - Solar powered light assembly to produce light of varying colours: A garden light (10) having a body (11) with a post (12), the lower end of which is provided with a spike (13). The upper end of the post (12) receives a lens assembly (14). Secured to the lens assembly (14) is a cap assembly (24) that has three LEDs... Agent: Law Offices Of Donald Cox

20090102388 - Projector and light source assembly employed in same: A light source assembly employed in a projector includes a light source, a power device, a light energy storage device, and a selection switch. The light source is configured for providing light beams for the projector. The selection switch is electrically connected to the light source, the light energy storage... Agent: PCe Industry, Inc. Att. Steven Reiss

20090102389 - Matrix phosphor cold cathode display employing secondary emission: A vacuum flat panel display including: a plurality of electrically addressable pixels; a plurality of thin-film transistor driver circuits each being electrically coupled to an associated at least one of the pixels, respectively; a passivating layer on the thin-film transistor driver circuits and at least partially around the pixels; a... Agent: The Plevy Law Firm Arthur L. Plevy

20090102390 - Circuit arrangement for operating a high pressure discharge lamp: A circuit arrangement for operating a high pressure discharge lamp includes a voltage transformer, a load circuit which is supplied by the voltage transformer and provided with connections for the high pressure discharge lamp (La), a choke (L2b) for limiting a current passing through the high pressure discharge lamp (La)... Agent: Young & Thompson

20090102391 - Enhanced color contrast light source: A lamp having improved color quality scale is provided. The lamp has a light-transmissive envelope and a phosphor layer comprising a first phosphor and a second phosphor wherein the first phosphor has an emission band with a maximum between 590 nm and 670 nm and the second phosphor has an... Agent: General Electric Company Ge Global Patent Operation

20090102392 - Protection architecture for multi-lamp system: The present invention discloses a protection architecture for a multi-lamp system, which applies to a multi-lamp driving system for driving a plurality of lamp loops. The present invention is characterized in that two opposite-phase loads of a loop are separately defined to be a first load and a second load,... Agent: Joe Mckinney Muncy

20090102394 - Circuit arrangement for controlling the operation of an electronic transformer: A circuit arrangement for controlling the operation of an electronic transformer (1) whose power supply can be lowered. The electronic transformer (1) is electrically connected to an output of a switch (7), and the switch (7) can be controlled by a control unit (5). A radio interference suppression circuit (8)... Agent: Osram Sylvania Inc

20090102393 - Circuit arrangement for operation of a discharge lamp with a switchable tuned capacitor: The invention relates to a circuit arrangement for operation of a discharge lamp (EL) with an inverter (INV) which generates a high-frequency alternating current from an input voltage and with a tuned circuit provided with at least one choke (L) and at least one tuned capacitor (C3, C4), by means... Agent: Viering, Jentschura & Partner - Osr

20090102395 - Control circuit and method for self-exciting capacitor charging circuit: A first voltage comparator makes a comparison between a first detection voltage that occurs at one terminal of a first resistor and a predetermined first threshold voltage. A second voltage comparator compares a second detection voltage that occurs at one terminal of a second resistor with a predetermined second threshold... Agent: Cantor Colburn, LLP

20090102396 - Lighting control system for a lighting device: A lighting control system suitable for a surgical lighting device. The lighting control system includes circuitry that compensates for the effects of temperature changes in a lighting device, and that compensates for forward voltage variations among LED lighting modules to provide substantially uniform light output.... Agent: Kusner & Jaffe Highland Place Suite 310

20090102398 - Lighting unit, a system comprising it and a control method thereof: A method for controlling the operation of a lighting unit comprising a plurality of lighting elements and a dimmable power supply unit with an output for adjusting the brightness of at least some of the lighting elements. The method provides that for at least one dimmer setting at least one... Agent: Waddey & Patterson, P.C.

20090102397 - System and method for controlling multiple light sources: A system for controlling multiple light sources is provided. The system includes a controller, a digital to analog converter (DAC), and at least one power amplifier. The controller is configured for receiving light control data for at least one light circuit, and for determining a digital luminance signal and an... Agent: PCe Industry, Inc. Att. Steven Reiss

20090102399 - Backlight led drive circuit: A backlight LED drive circuit 20 includes a step-up DC/DC converter 22 for stepping up a DC power voltage based on a PWM signal and supplying the voltage to the anode of an LED device 12c, a voltage detector 24 for detecting a feedback voltage FBV based on a voltage... Agent: Yokoi & Company U.s.a., Inc.

20090102400 - Method for driving a ptc electrical load element: A method is intended to make it possible to drive a PTC electrical load element with a switching unit with the highest possible operational reliability. For this purpose, the electric current is switched off if a predetermined current threshold value is exceeded, the magnitude of the current threshold value being... Agent: Freescale Semiconductor, Inc. Law Department

20090102401 - Solid-state lighting network and protocol: The present invention provides a solid-state lighting network with one or more master controllers and one or more nodes which are interconnected by an interconnect system. The one or more nodes and the one or more master controllers are configured to generate messages and exchange the messages via the interconnect... Agent: Philips Intellectual Property & Standards

20090096379 - Power supply apparatus and high-frequency circuit system: The present invention includes a Zener diode connected between a helix electrode and an anode electrode, a transistor that closes or opens a circuit between a cathode and an anode of the Zener diode, a photocoupler for turning ON/OFF the transistor through a phototransistor, a first switch for supplying or... Agent: Nec Corporation Of America

20090096378 - Traveling-wave tube 2d slow wave circuit: A two-dimensional circuit for a traveling-wave tube for millimeter and sub-millimeter electromagnetic waves synchronously interacts with an electron beam in a vacuum electronic microwave amplifier or oscillator. The circuit is a solid body having a length along the tube axis. The solid body has an electrically conductive top section and... Agent: Louis Ventre, Jr

20090096380 - System and method for producing energetic particles by gas discharge in deuterium containing gas: A system for producing energetic particles including a housing containing an anode and a cathode, wherein the anode is connected to a voltage supply and the cathode is one of a cathode containing an oxide layer and a cathode in the presence of oxygen, said cathode is grounded; a vacuum... Agent: Patton Boggs LLP

20090096381 - Control of delivery of current through one or more discharge lamps: Control of delivery of current through one or more discharge lamps. Methods include alternately switching on and off switching elements that control a fluorescent lamp, in response to receiving input, until the brightness of the lamp decreases to a threshold. Further, methods include providing control signals at complementary duty cycles... Agent: Fish & Richardson P.C.

20090096382 - Drive control circuit, emission control circuit, communication apparatus and drive control method: A drive control circuit sends out pulse signals of various pulse signals so as to control the light emission amount and luminance of LEDs by gradually increasing and decreasing the pulse width in predetermined cycles during predetermined periods based on parameters supplied from an LED drive controller that determine a... Agent: Cantor Colburn, LLP

20090096383 - Inverter and liquid crystal display device including the same: Disclosed is a liquid crystal display panel which includes a switching circuit for converting an input voltage into an alternating current (AC) voltage, a transformer for boosting the AC voltage generated from the switching circuit, and a bypass capacitor part connected in parallel between an output terminal of the switching... Agent: Macpherson Kwok Chen & Heid LLP

20090096385 - Light source apparatus, projector, and light source apparatus drive method: A light source apparatus includes an arc tube having a first electrode and a second electrode that carry out an emission of light due to a discharge between them, and a drive that, when supplying energy in an alternating current to the first electrode and the second electrode, carries out... Agent: Oliff & Berridge, PLC

20090096384 - Universal dimmer: Disclosed is a universal dimmer which detects the type of load it is connected to each time the universal dimmer is activated. Information relating to the type of load connected to the universal dimmer is therefore not required to be stored for future use. In one form, the universal dimmer... Agent: Greenblum & Bernstein, P.L.C

20090096386 - Light-emitting systems: A light-emitting system includes a first power input terminal and a second power input terminal and five rectifying devices coupled between the two power input terminals. The first and second power input terminals may receive an external power input. The first rectifying device is coupled between the first power input... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090096387 - Driver system and method for multiple cold-cathode fluorescent lamps and/or external-electrode fluorescent lamps: Driver system and method for multiple cold-cathode fluorescent lamps and/or external-electrode fluorescent lamps. According to an embodiment, the present invention provides a system for driving a plurality of cold-cathode fluorescent lamps. The system includes a subsystem configured to receive at least a DC voltage and generate a first AC voltage... Agent: Jones Day

20090096388 - Driver for light emitting semiconductor device: An electronic device is provided comprising a driver for light emitting semiconductor devices. The driver includes a first MOS transistor (MN1) coupled with a channel to the light emitting semiconductor device at an output node. The first MOS transistor (MN1) is configured to determine a current through the light emitting... Agent: Texas Instruments Incorporated

20090096391 - Control of delivery of current through one or more discharge lamps: Control of delivery of current through one or more discharge lamps. Methods include alternately switching on and off switching elements that control a fluorescent lamp, in response to receiving input, until the brightness of the lamp decreases to a threshold. Further, methods include providing control signals at complementary duty cycles... Agent: Fish & Richardson P.C.

20090096389 - Dc/dc converter: A control circuit of a DC/DC converter is provided for supplying a driving voltage to a light emitting element. A hysteresis comparator compares a detection voltage that corresponds to the output voltage of the DC/DC converter with two threshold voltages. If the detection voltage is smaller than the lower threshold... Agent: Cantor Colburn, LLP

20090096390 - Electronic ballast and method for operating an electrical lamp: An electronic ballast for an electrical lamp (2) provided with a first (21) and a second filament (22), includes a heating device which is used to heat the filaments (21, 22) and includes a resonance circuit (5), and an evaluation unit (11) designed for the evaluation of at least one... Agent: Osram Sylvania Inc

20090096392 - Pulse width modulation based led dimmer control: Methods and apparatus for implementing and operating pulse width modulation based LED dimmer controllers are described. A synchronization protocol is used to allow control information for the dimmer operations to be transferred to the PWM dimmer control clock domain from an external clock domain, such that visual artifacts are prevented... Agent: Nxp, B.v. Nxp Intellectual Property Department

20090096393 - Electron-emissive element and display element: Electron-emissive drive units of electron-emissive elements capable of being arranged with a smaller pitch. FET and emitter array units exist in matrix element areas partitioned by a control wiring and data wiring. An exemplary unit is composed of four emitter arrays. The control wiring and data wiring are driven by... Agent: Quarles & Brady LLP

20090091262 - Discharge lamp lighting apparatus: There is provided a discharge clamp lighting apparatus including: a transformer, a transformer driving circuit, a control circuit, in which a primary side of the transformer is driven by the transformer driving circuit lighting a discharge lamp connected at a secondary side of the transformer, a discharge sensing circuit, a... Agent: Oliff & Berridge, PLC

20090091263 - Capacitor shunted led light string: A series connected LED light string using capacitors as shunts. The shunts are implemented by inserting a capacitor—for example a low breakdown voltage chip capacitor—in every light socket, or internally within each LED. The capacitive shunt continues current in the light string in the event an LED fails by opening... Agent: Dickstein Shapiro LLP

20090091264 - Pixel circuit: A pixel circuit has a light emitting diode, a first switch, a driving transistor, a capacitor, and a second switch. The first switch has a first end coupled to the light emitting diode, wherein the first switch is controlled by a first scan signal. The driving transistor has source/drains respectively... Agent: Lowe Hauptman Ham & Berner, LLP

20090091265 - Backlight assembly and display device having the same: A backlight assembly a plurality of first light-emitting chips for emitting light and a thermistor for indicating the temperature of the first light-emitting chips. The first light-emitting chips emit first color light and are connected in series to each other. The thermistor may be connected in series to the first... Agent: F. Chau & Associates, LLC

20090091266 - Stringed lights: A stringed light set having a pair of conductors for supplying electricity and at least one light electrically connected to the conductors for receiving electricity and providing luminance. The at least one light being adapted to move between a use position and a storage position relative to the conductors.... Agent: Trego, Hines & Ladenheim, PLLC

20090091267 - Backlight assembly and a display device having the same: A backlight assembly includes: a plurality of lamp units; and an inverter which includes a plurality of pattern capacitors, wherein each of the pattern capacitors is electrically connected to a respective one of the plurality of lamp units, wherein each of the pattern capacitors comprises a printed circuit board, and... Agent: F. Chau & Associates, LLC

20090091268 - Airfield lighting with led: A method of feeding electric power to an LED (4) in an airfield lighting unit (7). The method comprises the steps of: feeding a constant alternating current (Is) to a rectifier (40), rectifying the alternating current (Is) to a rectified current (Ir), pulse width modulating the rectified current (Ir), charging... Agent: Blank Rome LLP

20090091269 - High frequency pulsed supply for discharge lamps: The HIGH FREQUENCY PULSED SUPPLY FOR DISCHARGE LAMPS describes electronic converters for discharge lamps with high frequency pulsed current stabilization. A voltage inverter is employed either in a Full-Bridge configuration using peak current control or in a Half-Bridge configuration with a capacitive element. These converters allow the luminous intensity of... Agent: Hedman & Costigan P.C.

20090091270 - Light source unit, a backlight unit having the light source unit and a liquid crystal display having the backlight unit: A light source unit, including: at least one light source array having a plurality of light sources; a first resistive element connected in parallel to at least one of the light sources disposed at a first end of the light source array; and a second resistive element connected in parallel... Agent: F. Chau & Associates, LLC

20090091271 - Lighting assemblies for vending machines: Display cases having lighting assemblies and methods of illuminating display cases with such lighting assemblies. Embodiments of the lighting assemblies may be used in display cases of any type and particularly in those where the purchaser selects via an external mechanism (e.g., buttons) a product from a variety of products... Agent: John S. Pratt, Esq Kilpatrick Stockton, LLP

20090091272 - Projection-type image display apparatus, lighting apparatus and lighting method realizing an extended lifetime: A projection-type image display apparatus includes a high pressure discharge lamp, which utilizes the halogen cycle, and a lamp lighting apparatus that controls lighting of the high pressure discharge lamp. The lamp lighting apparatus performs lamp refresh processing to improve a lamp property. The lamp refresh processing involves performing low... Agent: Snell & Wilmer L.L.P. (panasonic)

20090091273 - Light source for generating extreme ultraviolet light from plasma: A plasma generation apparatus for generating a plasma within a discharge chamber is disclosed, which includes a plurality of electrodes disposed within the discharge chamber, a power supply device operative to flow a discharge current between electrodes for performing self-heating of a plasma between the electrodes and for applying a... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090091274 - Method for achieving high duty cycle operation and multiple beams with weak focusing and fixed field alternating gradient induction accelerators: A new concept is presented along with different embodiments to produce improved duty cycle of electron beams and multiple beams of different energy from WF, FFAG and other betatron and induction accelerators. These variations are achieved by using the induction core in both directions of induction core swing to accelerate... Agent: Foley Hoag, LLP Patent Group, World Trade Center West

20090085485 - Display devices with ambient light sensing: A display device comprises an illumination source (12), a display modulator (10) for modulating the light provided by the illumination source and an integrated light sensor arrangement (14) to detect a light level. Light sensor signals from a plurality of light sensors are processed such that localised shielding of the... Agent: Venable LLP

20090085486 - Apparatus and method for managing the power of illumination devices: An apparatus for managing the power of an illumination device supplied by a power source includes a switch, a switch controller, an imaging unit, and a pattern recognition unit. The switch is configured for electrically connecting or disconnecting the illumination device and the power source. The switch controller is configured... Agent: PCe Industry, Inc. Att. Steven Reiss

20090085487 - Light sets: A light set including multiple circuits or light strings and utilizing a single set of electrical connectors. The electrical connectors include a male electrical connector for connection to an electrical power source, such as a wall outlet, and a female connector for receiving a male electrical connector of another light... Agent: Michael Best & Friedrich LLP

20090085488 - Backlight for electronic devices: Techniques are described to enhance a backlight design for electronic devices. A circuit is described to provide backlight for a display of an electronic device. In an implementation, the circuit includes a collection of light elements arranged electrically in a series and includes one said light element of the series... Agent: Garmin Ltd. C/o Garmin International, Inc.

20090085489 - Circuit and method for driving and controling light source: A light source driving circuit including a driving module, a plurality of first switches, a detecting unit, and a control unit is provided. The plurality of first switches is respectively coupled to corresponding light sources and these light sources are driven by the driving module. The detecting unit is coupled... Agent: Jianq Chyun Intellectual Property Office

20090085490 - Light emitting diode driver circuit with shunt switch: A LED driver circuit avoids undesirable light generated by a LED due to leakage current by shunting the output terminal to the feedback terminal during periods when it is desired that the LED remain turned off. The shunting operation is achieved by providing a switch (e.g., a FET) that is... Agent: Bever Hoffman & Harms, LLP 2099 Gateway Place

20090085491 - Starter auxillary electrode starting device with an arc gap: A device for operating or starting a high-pressure discharge lamp (18), provided with an auxiliary starting electrode (181), includes a voltage-dependent switch member(16), for providing the starting voltage for the high-pressure discharge lamp (18) to the auxiliary starting electrode (181) and the switch threshold voltage of the voltage-dependent switch member... Agent: Osram Sylvania Inc

20090085492 - Device for operating or starting a high-pressure discharge lamp lamp socket and illumination system wtih such a device and method for operation of a high-pressure discharge lamp: The invention relates to a device for operating or starting a high-pressure discharge lamp (10), whereby the device comprises a voltage-dependent switch (131), for generation of the starting voltage for the high-pressure discharge lamp (10), the switch threshold voltage of which is greater or equal to the starting voltage of... Agent: Osram Sylvania Inc

20090085493 - Electronic ballast for discharge lamps having an eol monitoring circuit: The invention relates to an electronic ballast for a discharge lamp LA1 having an EOL monitoring circuit R1, R2, U1, R9, U2-A, U2-B, U3-A, AE, which has a current differential amplifier U1 having a current mirror input.... Agent: Viering, Jentschura & Partner - Osr

20090085494 - Improvement to lighting systems: The present invention relates to power adaptors for solid state lighting units and fixtures, of a kind including light emitting diodes, one of the adaptors comprising an input for receiving a phase controlled input power signal of varying on-duration and a controller coupled to the input and operable to produce... Agent: Quine Intellectual Property Law Group, P.C.

20090085495 - Light source and projector: A light source includes an discharge lamp including a first electrode and a second electrode emitting light by discharge between them, a drive unit performing a steady operation which supplies steady energy to the first and second electrodes and an initial operation which supplies energy to the first and second... Agent: Oliff & Berridge, PLC

20090085498 - Electron emission device for back light unit and liquid crystal display thereof: The electron emission display device includes a light source unit having a plurality of gate electrodes and a plurality of cathode electrodes, the light source unit configured to emit electrons in accordance with voltages of the gate electrode and the cathode electrode, and to direct the emitted electrons to an... Agent: Lee & Morse, P.C.

20090085496 - Led controller and lighting system: A LED controller that allows the user to control the output intensity of one or more LED lights is disclosed. The intensity levels or brightness of the LED lights are not limited to 3, 4 or even 10 levels of light output; instead, the LED controller provides what appears to... Agent: Ian Osborn

20090085497 - Skylight led lighting system: A skylight LED lighting system is described. The system utilizes LED lights attached to or near a skylight in order to provide a user with the ability to increase the amount of light being directed into an area. The system can utilize a LED controller to allow the user to... Agent: Ian Osborn

20090085499 - Subarea control system of electrical lighting separated by a demarcation repeater: A subarea control system of electrical lighting separated by a demarcation repeater 6 comprises: a bus power supply 5 connected to the electric supply 1; at least a demarcation repeater 6 connected to the bus power supply 5 via a bi-phase digital information transmission bus 2 to establish a contact... Agent: Sinorica, LLC

20090085500 - Systems and methods for providing an oem level networked lighting system: The present application is generally directed to systems and methods for control and management of lighting components connected in a network. A user specified rule is executed to control lighting effects in a lighting network which comprises an interface module in communication with one or more lighting control modules. The... Agent: Choate, Hall & Stewart LLP

20090085501 - Constant current driver circuit with voltage compensated current sense mirror: A current sensing circuit for sensing the current provided to LEDs by a constant current power source includes a resistive shunt in series with the load and a current mirror having a first leg connected to a first terminal of the resistive shunt and a second leg connected to a... Agent: Osram Sylvania Inc

20090085502 - Method and apparatus for maximizing the sustainable flash of a handheld portable electronic device: A method and apparatus for maintaining a maximum sustained flash current over the whole length of a flash using a programmable current drive in a handheld portable device powered by a battery. The method involves measuring the battery voltage before and after a flash is initiated and calculating the equivalent... Agent: Eckert Seamans Cherin & Mellott

20090085503 - On-vehicle led illumination device: An LED illumination device 1 for vehicle use includes an LED lamp 10, a circuit 5 for supplying a current to the LED lamp from a power supply mounted on the vehicle, and a current control unit 7 for controlling the current supplied to the LED lamp 10 so as... Agent: Mcginn Intellectual Property Law Group, PLLC

20090085504 - Techniques for controlling a charged particle beam: Techniques for controlling a charged particle beam are disclosed. In one particular exemplary embodiment, the techniques may be realized as a charged particle acceleration/deceleration system. The charged particle acceleration/deceleration system may comprise an accelerator column, which may comprise a plurality of electrodes. The plurality of electrodes may have apertures through... Agent: Hunton & Williams LLP/varian Semiconductor, Equipment Associates, Inc.