Electric lamp and discharge devices: systems inventions 03/07

20070069656 - Multifunctional light: A multifunctional light which uninterruptedly has illuminating function in both the cases that the civil power is supplied and the civil power is cut off. The multifunctional light includes a lamp, a civil power circuit for providing civil power, a spare circuit for providing spare power, a controller bridged between... Agent: Troxell Law Office PLLC

20070069657 - Elevator lights: An elevator cab includes primary and auxiliary light sources. A light sensor responsive to light from the primary light source causes activation of the auxiliary light source when the primary light source fails. The light sources are inside the cab for passenger use and/or outside the cab for maintenance worker... Agent: Lowe Hauptman Berner, LLP

20070069658 - Basic halogen convertor ic: A driving circuit for providing a control signal to a power semiconductor device for providing power to a filament lamp, said driving circuit comprising an oscillator for generating said control signal. The driving circuit may further comprise a soft start circuit which controls said oscillator so as to avoid excessive... Agent: Ostrolenk Faber Gerb & Soffen

20070069660 - Electrodeless lighting system having resonator with different aperture ratio portions: A resonator for an electrodeless lighting system may include an inner space configured to receive an electrodeless bulb that emits light by plasmarizing a light emitting material filled inside of the electrodeless bulb. Additionally, the resonator may have light transmission holes configured to shield microwaves, generated by a microwave generator... Agent: Greenblum & Bernstein, P.L.C

20070069659 - High temperature operation type electrodeless bulb of plasma lighting systems and plasma lighting system having the same: A high temperature operation type electrodeless bulb of a plasma lighting system includes: a luminous unit defining a space for enclosing luminous materials, and made of glass having selective permeability that transmits visible light generated from the luminous unit and reflects infrared rays to the interior; and a supporting unit... Agent: Greenblum & Bernstein, P.L.C

20070069661 - Lamp driving device: In one aspect, an impedance component which exhibits a high impedance in a high frequency region is arranged on a high pressure line formed on a secondary side of a transformer. The potential difference generated at both ends of the impedance component is used to detect an abnormal electrical discharge... Agent: Knobbe Martens Olson & Bear LLP

20070069662 - Current-balancing circuit for lamps: The current-balancing circuit for lamps of the present invention adopts a plurality of transformers having a primary winding and a secondary winding. One end of the secondary winding of the transformer is connected with a lamp and another end of the secondary winding of the transformer is connected with an... Agent: Rosenberg, Klein & Lee

20070069663 - Solid state led bridge rectifier light engine: A solid-state light engine comprised of light emitting diodes (LEDs) configured into a bridge rectifier with a current limiting module coupled to the LED bridge rectifier. The light engine may be packaged for high temperature operation. Optionally, the LEDs comprise wavelength-converting phosphors with a persistence that is a multiple of... Agent: Patent Docket Administrator Lowenstein Sandler PC

20070069664 - Switched constant current driving and control circuit: The driving and control device according to the present invention provides a desired switched current to a load including a string of one or more electronic devices, and comprises one or more voltage conversion means, one or more dimming control means, one or more feedback means and one or more... Agent: Dorsey & Whitney, LLP Intellectual Property Department

20070063657 - Light string and method of assembling thereof: The embodiments of the present invention allow every light string to connect multiple LED blocks, wherein each block has a bridge rectifier circuit to supply the power. For connecting many LEDs to a light string, the LEDs can be divided into multiple blocks that is best adapted to the situation... Agent: Perkins Coie LLP

20070063658 - Ballast: Ballast for operating a low-pressure mercury vapor discharge lamp having two luminescent portions each radiating in a different color, said ballast comprising AC supply means for supplying an AC current to the lamp, wherein the ballast further comprises DC supply means for simultaneously supplying a DC current to the lamp,... Agent: Philips Intellectual Property & Standards

20070063659 - Device for turning on hgh-pressure discharge lamp and lighting apparatus: Even if a DC output voltage of a step-down chopper circuit (3) is lowered from a value in a non-lighted state or a no-load state due to a discharge occurring between conductors (105a) in a cable (104), the turn on detection circuit (26a) can discriminates between lighted and non-lighted states... Agent: Greenblum & Bernstein, P.L.C

20070057638 - Display apparatus and control method thereof: A display apparatus and method in which a current ripple is decreased to improve characteristics of a display apparatus are provided. A display apparatus comprises a light source, a plurality of driving power units providing driving electric powers to the light source, and a controller controlling the plurality of the... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20070057640 - Apparatus and method for providing dimming control of lamps and electrical lighting systems: Dimming of an electrical lamp of the type driven by a ballast is provided by a reactive power device in series between the AC supply and the ballast. The reactive power device provides a variable auxiliary voltage out of phase by 90 or 270 degrees with the current such that... Agent: Heslin Rothenberg Farley & Mesiti PC

20070057641 - Device and method for dimming service loads: A device and method are provided for detecting and configuring a solid state dimmer when wired in series or parallel with a load powered by an alternating current (AC) input. The device can comprise a microcontroller configured to be powered by the AC input. A zero-cross detector in communication with... Agent: Thorpe North & Western, LLP.

20070057639 - Light output modulation for data transmission: A method of operating a light source (100) including a ballast (110) in electrical communication with a lamp (120). The method includes operating the ballast (110) to determine (920) an average lamp power to be applied to the lamp (120) during a data period. The method further includes operating the... Agent: Philips Intellectual Property & Standards

20070057642 - Lamp driver circuit: A lamp driver circuit is disclosed. The lamp driver circuit comprises a passive power factor correction (PFC) circuit. The passive PFC circuit, in operation, is coupled with an alternating-current (AC) power source. The lamp driver circuit further includes a direct-current to direct-current (DC-DC) power converter coupled with the passive PFC... Agent: Mcdonnell Boehnen Hulbert & Berghoff LLP

20070057643 - Driver system and method with multi-function protection for cold-cathode fluorescent lamp and external-electrode fluorescent lamp: System and method for driving a cold-cathode fluorescent lamp. The system includes a control subsystem configured to generate one or more control signals, and a power supply subsystem configured to receive the one or more control signals and a DC input voltage, convert the DC input voltage to an AC... Agent: Townsend And Townsend And Crew, LLP

20070052365 - Manufacturing method of high-pressure discharge lamp, high-pressure discharge lamp, lamp unit using high-pressure discharge lamp, and image display apparatus using high-pressure discharge lamp: A manufacturing method of a high-pressure mercury lamp includes an electric field application step in which an electric field is applied to at least a light emission part (4) with the high-pressure mercury lamp being kept at a high temperature. This can reduce impurities such as hydrogen and alkali metals... Agent: Snell & Wilmer L.l.p.

20070052366 - Driving system and method for an electroluminescent display: A driving system and method for electroluminescent displays which by connecting the electroluminescent elements that have been lighted up to the electroluminescent elements that are to be lighted up causes charge to be shared among the elements, so as to increase the voltage level at the anodes of the electroluminescent... Agent: Rosenberg, Klein & Lee

20070052367 - Blended light lamp: The invention relates to a blended light lamp (1) having an incandescent lamp (2) and a gas discharge lamp (3), a rectifier (4), an energy storage means (5) and an ignition device (6). The high-pressure discharge has an operating voltage of 180 V, which can be achieved by filling a... Agent: Philips Intellectual Property & Standards

20070052368 - Lighting fixture and method for operating same: A ballast for fluorescent tubes and the use thereof for producing fluorescent tube lighting fixtures using a novel gas excitation mode in which light is generated by means of controlled pulses leading to an increased power efficiency, with a data collection and transmission functionality, are disclosed.... Agent: David A. Guerra Internation Patent Group, Llc

20070052370 - Multi-lamp driving system: A multi-lamp driving system for driving a first lamp and a second lamp includes a power supply circuit, and first-stage transformers. The power supply circuit is used for supplying the first and second lamps with an AC power, and first-stage transformers coupled to the power supply circuit for performing an... Agent: Charles E. Baxley, Esq.

20070052369 - Output voltage circuit of power supply: An output voltage circuit for power supply aims to arrange output DC power according to component voltage and equalizing current. The power supply has a voltage transformation circuit which consists of transformers each has at least one high voltage power and one low voltage power. The high voltage power output... Agent: Birch Stewart Kolasch & Birch

20070052371 - Discharge lamp ballast with detection of abnormal discharge outside the arc tube: A discharge lamp ballast is designed to limit or interrupt its AC output power to the discharge lamp upon occurrence of an abnormal discharge outside of an arc tube. A detector is included to examine a lamp voltage once in each of the positive and negative half-cycles or in each... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP

20070052372 - Display apparatus: A display apparatus including a display panel to display an image and a back light illuminating the display panel, including an inverter to supply a driving power to the back light, a power supply to supply power to the inverter, a microcomputer to output a back light control signal to... Agent: Stanzione & Kim, LLP

20070052373 - Novel circuit designs and control techniques for high frequency electronic ballasts for high intensity discharge lamps: The present invention provides an electronic ballast for a high intensity discharge lamp such as a metal halide lamp. The ballast includes an inverter and a resonant circuit with an ignition capacitor between the resonant circuit and the lamp. The ignition capacitor serves to provide the necessary start-up energy and... Agent: Merchant & Gould Pc

20070052375 - Controlling method and system for led-based backlighting source: The present invention uses different frequencies to drive the LED strips in the back-lighting source so that the spatial uniformity of the back-lighting source as well as the color levels in the source can be monitored and adjusted. Each individual strip is assigned to a different frequency. Alternatively, the strips... Agent: Ware Fressola Van Der Sluys & Adolphson, LLP

20070052374 - Device for illuminating the stope support at a longwall face: The light sources (13-15) for illuminating the stope support at a longwall face are operated at low voltage, connected to the control network device (8), for low voltage supply of the system controllers (1-7). LEDs are particularly suitable as light sources. Measures for avoiding an impairment of the function of... Agent: Alston & Bird LLP

20070052376 - Full-color led-based lighting device: A LED full-color lighting device contains a control unit, a light source unit, and a light display unit. The control unit relies on at least a potentiometer to apply various voltages to constant current sources, which in turn individually vary the current conducting through the red, green and blue LEDs... Agent: Birch Stewart Kolasch & Birch

20070046214 - Apparatus comprising an array of switches and display: A class of electromechanical switch cell is disclosed that has improved switching speed and tolerance to array non-planarity, among other advantages. In one embodiment, the switch cell can include a movable foil that is anchored to the structure, but is not under tension in the unbiased state. In another embodiment,... Agent: Trellis Intellectual Property Law Group, PC

20070046213 - Organic el laminate type organic switching element and organic el display: It is an object that the number of elements for use in active drive of organic EL element can be reduced, etc. An organic EL laminate type organic switching element according to the present invention has a control electrode (6) provided to which a control signal line for controlling the... Agent: Sughrue Mion, PLLC

20070046215 - Light assembly with power discharge unit: A light assembly includes a charge/discharge unit which is electrically connected to a control unit and a switch is electrically connected to the control unit so as to control the output of the control unit. A driving unit is electrically connected to the control unit and the charge/discharge unit so... Agent: Pao-chuang Hung

20070046216 - Cold cathode tube lighting device, tube current detecting circuit used in cold cathode tube lighting device, tube current controlling method and integrated circuit: A cold cathode tube lighting device is provided which is capable of achieving stable luminance when driven by applying driving pulses to input terminals on both sides of each of two or more cold cathode tubes. Each of currents flowing through coils in each of coil units on both sides... Agent: Young & Thompson

20070046217 - Open lamp detection in an eefl backlight system: A method according to one embodiment may include supplying power to plurality of External Electrode Fluorescent Lamps (EEFLs). The method of this embodiment may also include generating signals proportional to the voltage of each EEFL. The method of this embodiment may also include generating a feedback signal indicative of the... Agent: Edmund P. Pfleger Grossman, Tucker, Perreault & Pfleger, PLLC

20070046218 - Apparatus and method for driving plural lamps: A power system for driving plural or multiple lamps includes a transformer circuit, a filter and steady-flow circuit, and a light source. The transformer circuit transforms a voltage level of an input AC signal, and includes a first output end for outputting a first AC signal, and a second output... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang Jeffrey T. Knapp

20070046219 - Electrostatic fluid accelerator for and a method of controlling fluid flow: An electrostatic fluid acceleration and method of operation thereof includes at least two synchronously powered stages with final or rear-most electrodes of one stage maintained at substantially the same instantaneous voltage as the immediately adjacent initial or forward-most electrodes of a next stage in an airflow direction. A single power... Agent: Fulbright & Jaworski L.L.P.