Electric lamp and discharge devices: systems inventions

20090267517 - Vehicle headlamp control apparatus, vehicle headlamp control system and vehicle headlamp, high intensity discharge lamp control apparatus, high intensity discharge lamp control system and vehicle headlamp: In vehicle headlamp control apparatuses, which receive a direct current voltage Es, light discharge lamps by square waves, and drive motors, in each of which the number is at least one, arithmetic operations are performed for synchronizing the square waves for lighting the discharge lamps and pulses for driving the... Agent: Greenblum & Bernstein, P.L.C

20090267518 - Electronic ballast and method for operating an electric lamp: The invention relates to an electronic ballast device for operating an electric lamp (2), comprising a first (21) and a second lamp filament (22), wherein the lamp filaments (21, 22) are electrically connected to a heating circuit (3) during a pre-warming phase for the electric lamp (2) said heating circuit... Agent: Viering, Jentschura & Partner - Osr

20090267519 - Led lighting array assembly: A lighting array assembly has a plurality of support members facing different directions and on which emitters are mounted. Each support member has an emitter circuit thereon in operative association with at least one emitter and has a lighting center point. The emitters on each support member are positioned together... Agent: Robert R Hussey Co., Lpa

20090267520 - Lighting control device: A lighting control device includes a current driving portion for DC-controlling or PWM-controlling an LED unit, and a disconnection detection portion for detecting disconnection of the LED unit. The disconnection detection portion has a latch circuit and a reset portion. The latch circuit provides a disconnection detection signal after it... Agent: Fish & Richardson P.C.

20090267521 - Balancing transformers for multi-lamp operation: A ring balancer comprising a plurality of balancing transformers facilitates current sharing in a multi-lamp backlight system. The balancing transformers have respective primary windings separately coupled in series with designated lamps and have respective secondary windings coupled together in a closed loop. The secondary windings conduct a common current and... Agent: Knobbe Martens Olson & Bear LLP

20090267522 - Portable electronic device having a plurality of light elements and method of illuminating same: A portable electronic device operable to indicate received media is disclosed. A first set of lighting units is used to indicate a received media based on an orientation of the portable electronic device. A second set of the lighting units may be activated based on a change in the orientation... Agent: Morrison & Foerster LLP

20090267523 - Driver circuit for light sheet module with direct connection to power source: A light sheet module includes a light sheet having LEDs on a substrate and a driver circuit for the LEDs. The driver circuit includes a first control loop and a second control loop. The first loop contains TRIACS for regulating current from an external AC power source to the LEDs... Agent: Michaud-duffy Group LLP

20090267524 - System and method for performing an illumination copy and paste operation in a lighting system: The invention relates to copying light conditions from one location and pasting into or providing similar light conditions to another location in a lighting system. A light detector (20) is provided which comprises a first sensor (50) configured to receive a first light directly from a first light source (14)... Agent: Philips Intellectual Property And Standards

20090267525 - Led street lamp assembly: An LED street lamp assembly includes a central member having a first LED module fixed to a top surface thereof, a plurality of lamps attached to circumference of the central member and each having a second LED module therein, a plurality of sensors each mounted in one of the lamps... Agent: PCe Industry, Inc. Att. Steven Reiss

20090267526 - Organic light-emitting diode display device: A display device includes a display panel, a power transmitting member and a heat diffusing member. The display panel includes a base substrate, a power input part, a power signal line and a display element. The base substrate has an upper surface and a lower surface opposite the upper surface.... Agent: Cantor Colburn, LLP

20090267527 - System for supplying in-series connected light sources: A supply system for light sources connected in series is powered by one power line (SE), and a plurality of adjustment units (UR1, UR2, . . . , URJ, . . . URN) are interposed between the power line (SE) and an electric circuit (E) for in-series connection of light... Agent: William J. Sapone Coleman Sudol Sapone P.C.

20090267528 - Lamp driving circuit: A lamp driving circuit (10) for operating a discharge lamp has a series arrangement of a first and a second switching device (Q1, Q2) connecting supply voltage input terminals. An inverter resonant circuit (20, 30) shunts one of the switching devices and has an inverter inductance (L1), an inverter capacitance... Agent: Philips Intellectual Property & Standards

20090267529 - Circuit arrangement and method for the operation of a high-pressure gas discharge lamp: Disclosed is a circuit arrangement for supplying a lamp wattage to a high-pressure gas discharge lamp (Lp) in the form of an alternating current having an operating frequency, said operating frequency being frequency-modulated within large limits. The time characteristic of the operating frequency is selected such that more power is... Agent: Frishauf, Holtz, Goodman & Chick, PC

20090267530 - Backlight module for displays: A backlight module includes a light-emitting unit, and a controller to receive a first control signal and generate a second control signal to control the light-emitting unit. The controller controls a frequency of the second control signal according to a duty cycle of the first control signal.... Agent: Fish & Richardson PC

20090267531 - Arrangement for driving led cells: A driving arrangement for feeding a current generated by a high frequency generator (10) coupled with a magnetic element (11) to a plurality of LED cells (33) each including at least one LED. The arrangement includes a respective plurality of LED channels (1, 2, 3, 4; 1′, 2′, 3′, 4′)... Agent: Osram Sylvania Inc

20090267532 - Dimmable control circuit: The present invention relates to a dimmable control circuit, comprising: an ac power source; a transformer; a rectifier circuit; a dimmable control chip; a voltage dividing circuit; a dimmable switch; a first resistor; a second resistor; and a half bridge power driving circuit, capable of outputting signals to drive a... Agent: Sinorica, LLC

20090267535 - Ac power source apparatus: An AC power source apparatus includes an inverter 1c generating a first AC voltage for a load from a DC voltage of a first DC power source through a first switch, an inverter 1d generating a second AC voltage for the load from a DC voltage of the first or... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090267533 - Expandable led module for arbitrarily display assembly: An expandable LED module for arbitrary display assembly, comprises: a print circuit board, used to carry the following devices; at least a light emitting diode, disposed on said print circuit board; a first connecting device, disposed on one side of said print circuit board and coupled to said light emitting... Agent: Sinorica, LLC

20090267534 - Light emitting diode assembly: A circuit in accordance with one embodiment of the invention can include a light emitting diode (LED) assembly comprising a plurality of LED channels that are controlled independently with a switch mode driver. The circuit also includes N+1 wires coupled to said LED assembly, where N is equal to the... Agent: Cypress Semiconductor Corporation

20090267539 - Backlight module: The invention provides a backlight module comprising a plurality of lighting units and at least one balance transformer. Each of the lighting units comprises a first electrode terminal and a second electrode terminal, and the first electrode terminals are coupled to a power source. The at least one balance transformer... Agent: Morris Manning Martin LLP

20090267536 - Fluorescent lamp driver circuit: A fluorescent lamp driver circuit is provided. The fluorescent lamp driver circuit uses reversed current detecting signal to achieve feedback control and circuit protection so as to simplify the driver circuit and reduces the number of the required electronic components. The driver circuit needs a single control unit to control... Agent: Rosenberg, Klein & Lee

20090267538 - Lighting system for avionics applications and control method thereof: Disclosed herein is a lighting system, in particular for an avionics apparatus, having at least a light source and a control unit coupled to the light source and controlling operation thereof based on a management PWM signal; the management PWM signal may have a shape such as to limit radio... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090267540 - Modular lighting systems: In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control... Agent: The Webb Law Firm, P.C.

20090267537 - Motion activated removable blinking shoe light: A motion activated removable waterproof multi-colored blinking shoe light comprising a decorative top which attaches to a shoe by means of any appropriate fastening means such as a thin rubber or plastic snap, loop for receiving a shoe lace, any other loop, clasp, or pinching device, for example, is provided.... Agent: Ruth Eure

20090267541 - Led lamp control circuit having power saving function and power saving control method thereof: A light emitting diode (LED) lamp control circuit having power saving function includes a control switch, a LED lamp, a battery, and a controller. The battery is connected to the LED lamp to supply power via the control switch. The controller is connected to the control switch and the battery... Agent: PCe Industry, Inc. Att. Steven Reiss

20090267543 - Betatron with a removable accelerator block: A betatron is provided, particularly in an x-ray inspection station, comprising an accelerator block that is provided with a rotationally symmetrical inner yoke composed of two spaced-apart pieces, at least one main field coil, and a toroidal betatron tube which is disposed between the pieces of the inner yoke. The... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090267542 - Betatron with a variable orbit radius: A betatron, especially for an X-ray testing apparatus is provided that includes a rotationally symmetrical inner yoke having two interspaced parts, at least one round plate that is arranged between the inner yoke parts in such a way that the longitudinal axis thereof coincides with the rotational symmetrical axis of... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090261730 - High-pressure discharge lamp with improved ignitability and high-voltage pulse generator: High pressure discharge lamp (20) with improved ignitability. A spiral pulse generator (1) that is directly mounted inside the outer piston (12) of the lamp is used for igniting the high pressure discharge lamp.... Agent: Viering, Jentschura & Partner - Osr

20090261731 - Control circuit for turning on/off automobile lights: A control circuit for turning on/off automobile lights is connected to first, second and third power output units and an input trigger circuit. When a car is started, the second power output unit supplies power to the control circuit. Thereafter, the third power output unit supplies power to the control... Agent: Bacon & Thomas, PLLC

20090261732 - Low loss input channel detection device for a direct current powered lighting system: A device used with a direct current power source for energizing a lamp. The device includes a plurality of input channels selectively connected to the power source for providing current to the lamp. For each input channel, the device includes a corresponding current sensing component connected to the input channel,... Agent: Senniger Powers LLP (osr)

20090261733 - Monitoring device: A monitoring device for monitoring at least one fluorescent lamp, particularly in areas at risk of explosion, which fluorescent lamp has a lamp tube with electrodes arranged on the ends thereof in the form of coils, and lamp sockets assigned to said electrodes, is improved for preventing large temperature increases... Agent: Fish & Richardson P.C.

20090261734 - Method of programming a lighting preset from a radio-frequency remote control: The present invention provides a method of programming a preset intensity of a dimmer switch from a radio-frequency (RF) remote control. A user is able to adjust the intensity of the lighting load to a new intensity and subsequently press and hold a preset button on the remote control to... Agent: Lutron Electronics Co., Inc. Mark E. Rose

20090261735 - Lighting system to facilitate remote modification of a light fixture modifiable operating parameter: A lighting system comprises a light fixture (100) and a corresponding remote control transmitter (200). The light fixture can comprise at least one electrically energizable light source (102), at least one local condition sensor (103), a receiver (105), a memory (104), and a controller (101). The controller automatically controls energization... Agent: Fitch Even Tabin & Flannery

20090261736 - Illuminating device: A solar charged or solar powered illuminating device comprises a shell and a lampshade, wherein said shell is capable of being hung on a transparent surface comprising a backlight surface and a light-receiving surface, wherein said light-receiving surface is abutted against said transparent outward surface, said shell further comprising: a... Agent: Kening Li Pinsent Masons LLP

20090261737 - Motion activated utility light: A utility light is provided. The utility light comprises a first array of light sources having a first color facing in a first direction, a second array of light sources having a second color facing in a second direction that substantially opposes the first direction, a motion sensor, and an... Agent: Conley Rose, P.C.

20090261738 - Driving method for photo transistor and photo sensor and flat panel display using the same: A driving method for a photo transistor includes providing an alternating current (AC) voltage to a gate electrode of the photo transistor. A photo sensor using the driving method and a flat panel display using the photo sensor are also provided.... Agent: Wei Te Chung Foxconn International, Inc.

20090261739 - Portable electronic device and light flickering method for light emitting element thereof: A portable electronic device and a light flickering method for light emitting elements thereof are both disclosed herein. The portable electronic device includes at least one light emitting element. The light flickering method comprises the following steps: setting personalized light flickering data with a user interface; storing the personalized light... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090261741 - Cover figure-displaying device for an electronic device: A cover figure-displaying device for an electronic device includes a cover, a controller, and a light-emitting matrix. The cover has at least one figure. The controller has GPIO pins. The light-emitting matrix includes at least one light-emitting device connected with the controller. The controller controls the GPIO pins to select... Agent: Rabin & Berdo, PC

20090261740 - Led driver structure: The present invention discloses an LED driver structure, which obtains input power coming from a power source to generate a constant-current power to drive a plurality of LEDs, and which comprises: a plurality of diode groups connected in parallel, a first piezoelectric conversion unit and a second piezoelectric conversion unit... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090261742 - Led assembly and an improved power supply circuit thereof: An LED device comprises an LED assembly and a power supply circuit. The power supply circuit includes an AC circuit connecting to the power source, a DC circuit coupling with the AC circuit, a driving circuit and a snubber circuit connected with each other and located between the DC circuit... Agent: PCe Industry, Inc. Att. Steven Reiss

20090261743 - Light emitting diode driving module: An LED driving module suitable to drive a plurality of LED strings in parallel connection is disclosed. The LED driving module includes a voltage converting apparatus, a conduction voltage detecting apparatus, a reference voltage generating apparatus and a current-adjusting apparatus. The voltage converting apparatus produces a driving voltage according to... Agent: Jianq Chyun Intellectual Property Office

20090261744 - Phase-control dimming electronic ballast system and control method thereof: A phase-control dimming electronic ballast system and the control method thereof, wherein the system includes a phase controller, a converter, an inverter and a system controller. Moreover, the system controller senses a firing angle from the phase controller, and adjusts the output voltage of the converter and the switching frequency... Agent: Rosenberg, Klein & Lee

20090261745 - Enhanced trip resolution voltage-controlled dimming led driving circuit: Each driver circuit for a six-by-four array of light emitting diodes illuminating a pushbutton switch switches three pairs of the light emitting diodes between series connection and parallel connection based on changes to an applied input voltage. Driving six light emitting diodes instead of only four allows illumination of a... Agent: Docket Clerk

20090261746 - Control of light intensity using pulses of a fixed duration and frequency: A method and circuit to control the intensity of lights, illumination fixtures, and displays using pulses of a fixed duration and a fixed frequency (FD/FF) is provided. In particular, the method may be used to control one more light sources. By varying the number of pulses in a control burst,... Agent: Mcdermott Will & Emery LLP

20090261747 - Control system for multiple fluorescent lamps: The present invention is directed to an apparatus that drives a lighting system with multiple lamps. A phase shift mechanism is produced either by a digital method, an analog method, or a mixture of the two methods. In a digital method, phase shifts are generated by digital circuits comprising counters,... Agent: Baker & Mckenzie LLP Patent Department

20090261748 - Modified dimming led driver: A driver circuit produces variable current output for an LED lighting system providing improved dimming capability and greater power efficiency when responding to industry standard lighting dimmers, through the use of an input voltage monitoring circuit which variably controls the current output of a switching regulator. Output current modulation methods... Agent: John J. Yim & Associates, LLC East Building

20090261749 - Apparatus and method for automatically trimming an output parameter of an electronic ballast: An electronic ballast includes a microprocessor which is programmed to read a voltage value corresponding to an output of the electronic ballast, output a signal which controls an amount of power outputted by the electronic ballast in accordance with the voltage value, read an external voltage value, and select one... Agent: Greenblum & Bernstein, P.L.C

20090261750 - Encoding device for light-emitting-diode lamp, lamp, and controlled lighting system: A controlled lighting system includes an encoding device and a lamp. The encoding device includes a rectifier for rectifying an AC voltage input to result in a rectified signal, and an encoder for generating an encoded signal from the rectified signal and display data. The encoded signal has consecutive signal... Agent: Rosenberg, Klein & Lee

20090261751 - Fluorescent light temperature sensor: A fluorescent light temperature sensor for producing a temperature signal from a fluorescent light of an optically stimulated fluorescent material is provided with: an LED for projecting light onto the fluorescent material; a driving circuit for driving the light projecting element; a photo diode for receiving the fluorescent light that... Agent: Darby & Darby P.C.

20090261752 - Ballast: A ballast comprising a first input terminal, a second input terminal, a switch circuit, and a plurality of lamp sets is provided. The switch circuit comprises a first switch and a second switch connected with the first one. The switches are connected with the first and second input terminals respectively.... Agent: Holland & Knight LLP

20090261754 - Lamp driving circuit: The present invention relates to a lamp driving circuit capable of achieving miniaturization by using a safe insulation type multi-output transformer. The lamp driving circuit in accordance with the present invention includes a rectification unit for rectifying an input voltage; a PFC (Power Factor Correction) unit for enhancing a power... Agent: Lowe Hauptman Ham & Berner, LLP

20090261753 - Load driving circuit and method of setting load current thereof: A load driving circuit is disclosed that allows a charge pump circuit to operate at an optimum step-up ratio without frequently changing the step-up ratio. The load driving circuit includes a step-up circuit; a current setting circuit that sets a value of an electric current to be supplied to a... Agent: Cooper & Dunham, LLP

20090261755 - Inverter circuit, backlight device and liquid crystal display having the same: An inverter circuit for a backlight device includes an inverter transformer which supplies a high AC voltage to a plurality of discharge tubes, a filter circuit connected to an output terminal of the inverter transformer, and an abnormal discharge detection circuit. The filter circuit passes a current signal having a... Agent: Cantor Colburn, LLP

20090261757 - Backlight driving circuit and driving method thereof: A backlight driving circuit includes a driving unit, a light source, a power supply circuit, and a controller connected to the driving unit. The power supply circuit includes a low voltage output terminal for outputting a low DC voltage and a high voltage output terminal for outputting a high DC... Agent: Wei Te Chung Foxconn International, Inc.

20090261759 - Device and process for uniformly lighting an operating area: A device and a process are provided for uniformly lighting an operating area for performing the lighting of an operating area (2) of a bed (30) by means of a lighting unit (3) such that a selected lighting field (13) is lighted uniformly. The image signals of a camera (7)... Agent: Mcglew & Tuttle, PC

20090261758 - Light source driving device: A light source driving device drives a plurality of light sources. A Power Factor Circuit (PFC) circuit converts a received electrical signal to a DC signal and output to a DC/AC converting circuit. The DC/AC converting circuit converts the DC signal to another AC signal, which is isolated by the... Agent: PCe Industry, Inc. Att. Steven Reiss

20090261756 - Method of shutting down a high pressure discharge lamp and driving unit for driving a high pressure discharge lamp: The invention describes a method of shutting down a high pressure discharge lamp (1) in which a pair of electrodes (2) is disposed in an arc tube (3), which method comprises reducing, upon receipt of a shut-down request (SR), the lamp power (P) towards a reduced power level (PR) required... Agent: Philips Intellectual Property & Standards

20090261760 - H-mode drift-tube linac and design method therefor: A linearity of a voltage change to a tuner insertion amount is verified for at least one of a plurality of tuners. Based on the voltage change linearity, individual voltage change data corresponding to respective insertion amounts are calculated for each of the plurality of tuners through a proportional calculation.... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090256481 - Stand alone lamp filament preheat circuit for ballast: A lamp filament preheating circuit using modified flyback topology which gives pulsating AC in the secondary of the flyback transformer. The circuit may be controller based or implemented by a monoshot and astable multivibrator. A self-oscillation, parallel resonant current fed half bridge inverter circuit may include an arc sensing circuit.... Agent: Senniger Powers LLP (osr)

20090256482 - Incandescent light bulb: An improved incandescent light bulb is described utilizing a textured surface filament design to improve efficacy, longevity and color temperature. Embodiments include a low voltage halogen bulb which may be mounted in a fixture containing power condition and altering circuitry. The fixture may be made so as to allow the... Agent: Daniel S. Coolidge Coolidge & Graves PLLC

20090256483 - Load control device having a visual indication of an energy savings mode: A load control system (e.g., a dimmer switch) operates in a normal mode of operation and an energy-saver mode and displays a visual indication when the system is operating in the energy-saver mode. The system comprises a controllably conductive device adapted to be coupled in series between a power source... Agent: Lutron Electronics Co., Inc. Mark E. Rose

20090256484 - Load control device having a compact antenna: A load control device for controlling the power delivered to an electrical load, the load control device comprising a controllably conductive device for controlling the power delivered to the electrical load, the controllably conductive device having a control input; a controller coupled to the control input of the controllably conductive... Agent: Ostrolenk Faber Gerb & Soffen

20090256485 - Decorative light string: A decorative light string has a power connector, at least one lightening unit and a rectifier. The lightening unit is electrically connected to the power connector and has an incandescent bulb set and an LED set. The incandescent bulb set has a primary wire and multiple incandescent bulbs. The LED... Agent: Jackson Walker, L.L.P.

20090256486 - Light dimming device for compact fluorescent lamp: A light dimming device for compact fluorescent lamp includes a rectifying circuit for rectifying an AC current signal into a zero crossing voltage signal and outputting it to a current limiting circuit; the current limiting circuit for limiting the zero crossing voltage signal and sending the current limited zero crossing... Agent: Hdls Patent & Trademark Services

20090256487 - Method for detection of non-zero-voltage switching operation of a ballast of fluorescent lamps, and ballast: A method detects a non-zero-voltage switching operation of a lamp ballast, the lamp ballast including a half-bridge circuit with a first and a second semiconductor switching element, a resonant circuit connected to the half-bridge circuit, and a snubber capacitance connected in parallel with one of the semiconductor switching elements. The... Agent: Maginot, Moore & Beck Chase Tower

20090256488 - High intensity discharge strobe light: A high intensity discharge (HID) lamp is operable as a stroboscopic light source by reducing power and maintaining constant polarity at the lamp for a period of dimmed operation and exciting the lamp with aperiodic polarity reversals for a run up period before returning the lamp to steady state operation.... Agent: Chernoff, Vilhauer, Mcclung & Stenzel, LLP

20090256489 - Fluorescent light control: Circuitry, which is compatible with incandescent light dimmers, is disposed within the screwbase of a compact fluorescent light, and sets driving frequencies for a mercury plasma, based, at least in part, on sensing the duty cycle of the incoming AC supply waveform. In this way, existing lighting infrastructure, including phase-cut... Agent: Raymond J. Werner

20090256490 - Voltage sensing circuits and methods for inverters: A voltage sensing circuit includes a voltage divider and a voltage rectifier. The voltage divider divides a first output voltage on a first output voltage line to a first divided output voltage. The voltage divider comprises a first metal foil and a first capacitor. The first metal foil and the... Agent: O2micro Inc C/o Murabito, Hao & Barnes LLP

20090256493 - Driving circuit for display device, and test circuit and test method for driving circuits: A driving circuit, which drives a display panel in a voltage range between a high negative voltage and a high positive voltage, includes: an electric charge discharging circuit; and a test external terminal. The electric charge discharging circuit connects a first terminal supplied with the high negative voltage to a... Agent: Mcginn Intellectual Property Law Group, PLLC

20090256494 - Gan-based semiconductor light-emitting element, light-emitting element assembly, light-emitting apparatus, method of driving gan-based semiconductor light-emitting element, and image display apparatus: A GaN-based semiconductor light-emitting element is provided and includes a first GaN-based compound semiconductor layer; an active layer having a multi-quantum well structure; and a second GaN-based compound semiconductor layer. At least one of barrier layers constituting the active layer is composed of a varying-composition barrier layer, and the composition... Agent: K&l Gates LLP

20090256492 - Light source module, light source assembly having the same and display device having the light source module: A light source module includes a power transmission substrate and a plurality of point light sources. The power transmission substrate has a plurality of dimming areas disposed along a first direction. The point light sources are spaced apart from each other in each dimming area along the first direction and... Agent: F. Chau & Associates, LLC

20090256491 - Method for operating a gas discharge lamp: The invention relates to a method for operating a gas discharge lamp, in which the shape of at least one electrode of the gas discharge lamp is changed, in which by changing the lamp current for a predeterminable duration, at least one current pulse is generated such that structures which... Agent: Viering, Jentschura & Partner - Osr

20090256495 - Back light module: A back light module is provided. The back light module includes a plurality of light source matrixes, a current adjusting circuit and a light source driving circuit, wherein each of the light source matrixes includes N light emitting units and N is an integer greater than 1. First ends of... Agent: Jianq Chyun Intellectual Property Office

20090256496 - Light-emitting device: Light-emitting device (1) comprising a body which is at least substantially transparent in the visible spectral range and a light-generating device (5) which is arranged outside the body, wherein a light-emitting region is formed inside the body and wherein there is formed in the body, as a result of the... Agent: Wenderoth, Lind & Ponack, L.L.P.

20090256497 - Backlight device: A backlight device that is not affected by offset voltage. Driving transistor 41 operates such that current flows in LED circuit 11, and the detection voltage generated by current detector 42 and the reference voltage are input alternately to first input transistor 30a and second input transistor 30b of amplifier... Agent: Texas Instruments Incorporated

20090256498 - Filament power supply circuit for vacuum fluorescent display: In a filament power supply circuit of a vacuum fluorescent display, an integration circuit is connected to a signal input terminal which receives a pulse signal having a magnitude corresponding to a DC power supply voltage. A comparison circuit compares an output voltage from the integration circuit with a reference... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090256499 - Power supply, display device, and light source driving apparatus: A power supply is provided, which includes a DC-DC converter being supplied with an external DC input voltage and a first switching control signal and outputting a duty sensing signal of which a magnitude is varied in accordance with the first switching control signal, the duty sensing signal being indicative... Agent: Haynes And Boone, LLPIPSection

20090256500 - Led mine light: An LED light device has a generally spherical body with a a plurality of projections radiating outwardly therefrom, each of said projections having a distal end and at least one of said projections has a magnet at its distal end. The body encloses a power source and carries at least... Agent: Ronald L. Hofer

20090256501 - Circular accelerator: In a circular accelerator, a magnetic pole edge portion of a bending electromagnet into and from which a charged particle beam enters and exits is provided with endpacks. A first protrusion is provided at that part of each end pack which is radially outside the equilibrium orbit of a center... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090251054 - Collector and electron tube: A collector of an electron tube is formed by using a molybdenum-copper composite material or a tungsten-copper composite material.... Agent: Nec Corporation Of America

20090251055 - Discharge lamp lighting apparatus: A discharge lamp lighting apparatus includes a first inverter, a second inverter to output a voltage whose phase is opposite to that of a voltage provided by the first inverter, a discharge lamp connected between a first output terminal of the first inverter and a first output terminal of the... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090251056 - Display apparatus and light control method of the same: Disclosed are a display apparatus and a light control method thereof, in which the display apparatus including a display panel, a light source unit, an illumination unit to illuminate the display panel with light emitted from the light source unit, and a projection unit to project the light from the... Agent: Sughrue Mion, PLLC

20090251057 - Artificial solar light system using a light emitting diode: The present invention relates to an artificial solar light system, and more particularly, to an artificial solar light system using light emitting diodes. The present invention can provide an artificial solar light system using light emitting diodes, which can represent the same light emission effects as the sun with time.... Agent: H.c. Park & Associates, PLC

20090251058 - Two way lighting control system with dual illumination sources: A two way lighting control system with dual illumination sources, including a lighting unit, a photocell, a motion sensor, and at least one light source base. The lighting unit includes two light source loads. The high wattage light source load is the first light source, and the low wattage source... Agent: Rosenberg, Klein & Lee

20090251059 - Dimmer triggering circuit, dimmer system and dimmable device: The invention relates to a dimmer triggering circuit (12) for triggering a dimmer in an alternating current network. The dimmer has a voltage-level detector (15), and a bipolar current source circuit (18). The voltage-level detector (15) detects whether an absolute value of an input voltage of the dimmer triggering circuit... Agent: Howrey LLP-eu

20090251060 - Electronic ballast system with lamp interface network: An electronic ballast is provided, which includes first and second output nodes, first and second lamp outputs, and a lamp interface network. The lamp interface network includes an LC circuit coupled between at least one of the first and second output nodes and a respective one of the first and... Agent: Westman Champlin & Kelly, P.A.

20090251061 - Apparatus for operating at least one discharge lamp: The invention relates to an apparatus for operating at least one discharge lamp by means of one or more voltage converters, wherein the apparatus comprises a voltage converter which is in the form of an inverse Watkins-Johnson converter.... Agent: Viering, Jentschura & Partner - Osr

20090251062 - Inverter: A soft start circuit generates a soft start voltage which changes over time when light emission of an EEFL is started. A pulse modulator receives a feedback voltage that corresponds to the output voltage of an inverter and the soft start voltage, and adjusts the duty ratio of a pulse... Agent: Cantor Colburn, LLP

20090251063 - Dimmer noise reducing circuit of piezoelectric transformer: A dimmer noise reducing circuit wherein vibration noise accompanying the activation/deactivation of a piezoelectric transformer can be reduced, while non-uniformity of brightness of a discharge lamp can be prevented. A chopping circuit turns on/off an output from an input voltage source in a given periodic manner and a full-bridge circuit... Agent: Snell & Wilmer LLP (oc)

20090251065 - Circuit arrangement and method for operating at least one led: A method and a circuit arrangement for operating at least one LED, includes: a first and a second mains connection for connecting a mains voltage; a first rectifier, whose rectifier input is coupled to the mains connections and at whose rectifier output the rectified mains voltage can be provided; an... Agent: Viering, Jentschura & Partner - Osr

20090251064 - Semiconductor device, electro-optical device, and electronic instrument: A semiconductor device includes a source circuit and a control circuit. The source circuit includes a plurality of operational amplifiers, a plurality of transmission gates, one end of each of the transmission gates being connected to a corresponding source line, and a buffer circuit that outputs a switch control signal.... Agent: Oliff & Berridge, PLC

20090251066 - Lighting unit: In a lighting unit for operating lamps (LA1, LA2) of a different color temperature, a number of predetermined color points can be adjusted. The color points are chosen so that the color difference calculated in the CIELAB space is the same for subsequent adjustable color points.... Agent: Philips Intellectual Property & Standards

20090251067 - Pulsed led illumination to save energy: A method for providing lighting includes sweeping an array of light sources on and sweeping the array of light sources off. The array of light sources being swept on and off at a frequency substantially higher than a critical flicker frequency to enhance perceived brightness. An apparatus includes a plurality... Agent: Mckee, Voorhees & Sease, P.L.C

20090251068 - Solid state lighting circuit and controls: In some embodiments, a solid state lighting circuit may include one or more of the following features: (a) a plurality of emitters operably connected to a power supply (b) the power supply operably coupled in series with a current limiting device, where one or more of the emitters is bypassed... Agent: Nikolai & Mersereau, P.A.

20090251069 - Systems and methods for lighting control in flight deck devices: Systems and methods for illuminating flight deck devices are disclosed. In one embodiment, a flight deck panel illumination system includes at least one illuminated panel having at least one illumination source, and a power supply coupled to the at least one illumination source and to an electrical energy source that... Agent: Caven & Aghevli LLC

20090251073 - fluorescent task lamp with optimized alignment and ballast: A handheld fluorescent task lamp comprising a housing assembly having a housing and a tubular lens body enclosing compact fluorescent bulbs, an elongated spine configured for slidingly supporting the lens body, and a resilient bulkhead for cushioning the compact fluorescent bulbs in the lens body; an electronic ballast circuit within... Agent: Whitaker, Chalk, Swindle & Sawyer, LLP

20090251074 - Analog-to-analog lighting apparatus and methods: The invention provides a system of generation of multi-channel analog output signals, from a single analog input signal, and the controlled activation of peripheral devices responsive to the multi-channel analog output signals. A single-channel to multi-channel analog-to-analog converter is provided to convert the single analog input signal to multiple output... Agent: Oyen, Wiggs, Green & Mutala LLP 480 - The Station

20090251072 - Dc distribution system: A direct current power system according to one non-limiting embodiment includes a direct current power source operable to distribute a direct current voltage throughout at least one structure, and at least one controller operable to selectively couple a direct current load to the direct current voltage in response to a... Agent: Carlson, Gaskey & Olds/masco Corporation

20090251071 - Driving multiple parallel leds with reduced power supply ripple: An LED driver is disclosed that drives LEDs connected in parallel. Instead of applying current to all the parallel-connected LEDs at the same time, under control of a common PWM brightness control signal, the application of current to each parallel path is staggered by using staggered brightness control signals. The... Agent: Patent Law Group LLP

20090251070 - Electronic zoom portable electric lamp: The portable electric lamp, for example a headlamp, is a lamp with light-emitting diodes comprising at least two distinct light sources (1a, 1b, 1c) having different emission angles. An electronic control circuit controls each of the light sources independently and comprises a distribution control input to select the percentage of... Agent: Oliff & Berridge, PLC

20090251075 - Inertial-power light-emitting device: A light-emitting device driven by an inertial power includes an inertial module, a magnetic element, a magnetic-conductive element, at least one wire, and a light-emitting module. Under an inertial effect, the inertial module drives the magnetic element to rotate, such that a magnetic field generated by the magnetic-conductive element changes... Agent: Workman Nydegger 1000 Eagle Gate Tower

20090251076 - Hid ballast with integrated voltage multiplier and lamp temperature compensation: The present invention relates to temperature compensation of HID lamps in automobiles. The invention concerns the manner in which the temperature of the HID lamp is accounted for in order to drive the lamp is at appropriate power from hot to cold conditions. In the present invention, the voltage across... Agent: The Hong Kong Polytechnic University

20090251077 - Article of clothing with washable light module: This invention is directed to an article of clothing having a lighting system that may be laundered with the clothing without damage to the electrical components of such system, comprising a light module that encapsulates and seals an electrical circuit coupled by one or more wires to a number of... Agent: Gray Robinson, P.A.

20090251078 - Multi-functional traffic signal stick: Disclosed herein is a multi-functional traffic signal stick, which has a red signal LED part for providing a signal stick function and a white signal LED part for providing a flash light function, and which a police officer carries on the road. The multi-functional traffic signal stick can be carried... Agent: Cantor Colburn, LLP

20090251079 - Multi-modulation mode led driving circuit: The present invention discloses a multi-modulation mode LED driving circuit, which controls an inverter to perform energy conversion to drive at least one LED. The driving circuit of the present invention is modulated by a timing control signal containing an on time and a standby time. In the present invention,... Agent: Muncy, Geissler, Olds & Lowe, PLLC