Electric lamp and discharge devices: systems inventions 09/07

20070222391 - Current balancing circuit for light emitting diodes: The invention provides an LED current balancing circuit, comprising a first and a second LED set coupled to a voltage source, a first transistor, and a second transistor. The first LED set comprises a first loader. The first transistor and the second transistor form a current balancing circuit for adjusting... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20070222390 - Vehicle led lamp controller used in low temperature environment: A vehicle LED lamp controller connected between one DC power source and multiple LED elements has a starting circuit, a preheating circuit and a current limitation circuit. The starting circuit is connected to the power source through the preheating circuit and connected to the multiple LED elements. The preheating circuit... Agent: Hershkovitz & Associates

20070222392 - Circuit arrangement: A driver for HID lamps comprises four switches and generates a constant DC current that is commutated at a low frequency. The driver comprises a filter capacitor. The occurrence of peak currents due to the charging or discharging of the filter capacitor is prevented by driving one of the switches... Agent: Philips Intellectual Property & Standards

20070222393 - Electron emitting device: The electron emitting device 10 includes a substrate 11, a lower electrode 12, an emitter section 13, an upper electrode 14. The upper electrode disposed above the emitter section to oppose the lower electrode so as to sandwich the emitter section with the lower electrode. The upper electrode has a... Agent: Burr & Brown

20070222394 - Black matrix for flat panel field emission displays: A flat panel field emission device includes a black matrix formed from an electrically insulative material such as praseodymium-manganese oxide. The insulative black matrix increases image contrast and reduces power consumption. For field emission devices which utilize a switched anode for selectively activating pixels, the insulative material reduces or eliminates... Agent: Trask Britt

20070222396 - Lamp drive device of projector: A projector includes a lamp drive circuit which drives a lamp, and a lamp drive current detection unit which detects the lamp drive current. Based upon the lamp drive current which is detected, the lamp drive circuit controls the lamp drive current by PWM control, so as to drive the... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20070222395 - Switching regulator for fixing a frequency: A switching regulator includes a power stage, an output capacitor, a first reference voltage generator, a comparator, a constant-time trigger, a frequency-to-voltage converter, and an error amplifier. The power stage includes a first switch, a second switch coupled to the first switch, and an output inductor. The comparator is coupled... Agent: North America Intellectual Property Corporation

20070222397 - Hybrid electroluminescent devices: A hybrid electroluminescent (EL) device comprises at least one inorganic diode element and at least one organic EL element that are electrically connected in series. The absolute value of the breakdown voltage of the inorganic diode element is greater than the absolute value of the maximum reverse bias voltage across... Agent: General Electric Company Global Research

20070222399 - Energy saving extra-low voltage dimmer lighting system: A system of extra-low voltage outdoor lighting is disclosed in which any number of light fixtures each have an individual control module, internal to the fixture or external to the fixture. The control module allows for the use of a power supply transformer (120 volt AC) manufactured to supply power... Agent: Paul D. Gornall Registered Patent & Tm Agent

20070222398 - High efficiency electronic ballast for metal halide lamp: A high efficiency electronic ballast for large power metal halide lamp includes a power input circuit, a power factor correction circuit, a secondary power supply, a control circuit, a half bridge power converter, a resonant starting circuit, and lamp current on/off detector. The half bridge power converter has two DC... Agent: Raymond Y. Chan

20070222400 - Method and apparatus for equalizing current in a fluorescent lamp array: The disclosed embodiments provide a method and apparatus for visual enhancement of liquid crystal displays. A microprocessor or embedded microcontroller associated with visual enhancement circuit modules allows a single inverter to control the intensity of illumination for an array of multiple CCFLs. The microcontroller continuously senses the operating currents of... Agent: Higgs, Fletcher & Mack LLP

20070216311 - Display with reduced power light source: A display includes a backlight comprising light sources. The light sources are divided into sections. The display also includes a transmissive display panel positioned adjacent to the backlight, a diffuser positioned between the backlight and the transmissive display panel, and a control circuit coupled to the backlight and the transmissive... Agent: Kurt Luther, Esq. Honeywell International, Inc.

20070216312 - Control device for a hybrid electric vehicle: A hybrid electric vehicle is arranged such that a driving force of an engine and a driving force of an electric motor can be transmitted to driving wheels through an automatic transmission having a plurality of forward gears. When it is detected that the vehicle is in a predetermined state... Agent: Jacobson Holman PLLC

20070216313 - Lighting control system & three way occupancy sensor: There is disclosed a sensor which, when integrated into a dimming system, can turn the dimmer on and off, and vice versa. As an example, lights which are connected to the dimmer can be turned on by using the dimmer, the light level can be adjusted to provide a level... Agent: Paul J. Sutton, Esq., Barry G. Magidoff, Esq. Greenberg Traurig, LLP

20070216314 - Light regulation device: A light regulation device includes at least one light sensor which provides at its output a real brightness value, at least one regulator to which a set brightness value can be supplied, besides the real value, and a number n of output connections, n being greater than or equal to... Agent: Osram Sylvania Inc

20070216316 - Electric field generating device, light deflecting device, and image display apparatus: A disclosed electric field generating device includes an electric field generating unit including a substrate, line electrodes, and an electric field generating resistor and configured to generate an electric field. In the disclosed electric field generating device, the line electrodes are formed on at least one side of the substrate... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070216315 - Active matrix display device: To reduce variation in characteristics of a voltage-current conversion circuit for supplying a data signal to a data line for driving a transistor arranged in a pixel of an organic EL display device. Two sets A, B of voltage-current conversion circuits are provided in a data driver for driving a... Agent: Eastman Kodak Company Patent Legal Staff

20070216317 - Method and apparatus for driving a light emitting diode: An LED drive circuit includes a current source configured to electrically drive an LED. In one configuration, the current source forms part of an integrated circuit that requires a relatively small amount of voltage for operation. As such, separate voltage sources can be electrically coupled to the LED and integrated... Agent: David E. Huang, Esq. Bainwood Huang & Associates LLC

20070216318 - Traditional-opening dimmer switch having a multi-functional button: A load control device, for controlling the amount of power delivered to a electrical load from an AC power source, comprises a user interface adapted to be received in an opening of a traditional-style faceplate and providing a plurality of functionalities on a single control button. A transitory actuation of... Agent: Ostrolenk Faber Gerb & Soffen

20070216319 - High efficiency single stage bidirectional converter: The present invention focuses on the development of a high-efficiency single-stage bidirectional converter with multi-input power sources. Due to future power systems with various power sources and clean energies without energy storage capability, batteries are usually taken as auxiliary powers when clean energies are applied to distributed generation systems. By... Agent: Hdsl

20070216320 - Method and apparatus for illuminating light sources within an electronic device: A method and apparatus for controlling a plurality of light sources (102,103,104,105) in an electronic device (100) is provided. In one embodiment, the plurality of light sources (102,103,104,105) is used to backlight an illuminated display (101). As switching multiple light sources on simultaneously can cause output voltages of power sources... Agent: Philip H. Burrus, Iv

20070216321 - Electronic ballast with life-ended protection: An electronic ballast includes a rectifier and filter circuit, a DC/AC inverter circuit and a resonant circuit. An input of the rectifier and filter circuit is connected to an outside power supply, its output is connected to the inputs of DC/AC inverter circuit, an output of the DC/AC inverter circuit... Agent: Greer, Burns & Crain

20070216322 - Backlight unit for display device and driving circuit of the same: A backlight unit for a display device includes an alternating current (AC) power supply that connects to an AC generator to output a first AC voltage; at least one LED array driven by the first AC voltage and including a plurality of LEDs; and an impedance matching element connected in... Agent: Song K. Jung Mckenna Long & Aldridge LLP

20070210717 - Inductively-driven plasma light source: An apparatus for producing light includes a chamber that has a plasma discharge region and that contains an ionizable medium. The apparatus also includes a magnetic core that surrounds a portion of the plasma discharge region. The apparatus also includes a pulse power system for providing at least one pulse... Agent: Proskauer Rose LLP

20070210718 - Remote light switching device: The invention herein described is a device and method for the remote lighting of a single lamp within a circuit of lights. The device also can be installed to control the entire circuit, as is commonly done with light circuits today. The device of the current invention can be easily... Agent: Michael A. Shippey, Ph. D.

20070210719 - Circuit arrangement and method for operating at least one electric lamp and at least one led: The present invention relates to a circuit arrangement for operating at least one electric lamp and at least one LED including: an inverter having a bridge circuit having at least one first bridge transistor and one second bridge transistor arranged in series with one another, a center point of the... Agent: Osram Sylvania Inc

20070210720 - Display device and method for driving the same: A semiconductor device having a configuration hardly generating variations in the current value due to a deteriorated EL element is to be provided. A capacitance element is disposed between the gate and the source of a driving TFT, video signals are inputted to the gate electrode, and then it is... Agent: Fish & Richardson P.C.

20070210721 - Method and apparatus for stabilizing a glow discharge plasma under atmospheric conditions: Method and apparatus for generating and sustaining a glow discharge plasma in a plasma discharge space comprising at least two spaced electrodes. The method and apparatus are arranged for performing the steps of introducing in the discharge space a gas or gas mixture under atmospheric pressure conditions, energizing the electrodes... Agent: Davidson Berquist Jackson & Gowdey LLP

20070210722 - Led lighting device and lcd device using the same: An LED lighting device can compensate a brightness change and a color change caused by a temperature change and exhibit an in-plane uniform luminance and color. A lighting device includes: at least one line connected in parallel, a constant voltage source for applying a constant voltage to the line, an... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070210723 - Discharge lamp lighting apparatus, luminaire and illumination system: There is provided a high-intensity discharge lamp lighting apparatus to be loaded with a plurality of types of high-intensity discharge lamps and connected with any one of the lamps to be lighted, and the apparatus comprises a power conversion circuit for converting power supplied from a DC power source to... Agent: Greenblum & Bernstein, P.L.C

20070210724 - Power adapter and dc-dc converter having acoustic transformer: An integrated power adapter, a portable electronic device with an integrated power adapter, and multichip modules are described.... Agent: Kathy Manke Avago Technologies Limited

20070210726 - Current limiting circuit: An electronic circuit. The electronic circuit includes a pass transistor having a channel coupled between an input node and an output node. An error circuit is coupled thereto and configured to control the amount of current flowing through the pass transistor. The electronic circuit may further include a feedback node.... Agent: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.

20070210725 - Led dimming control technique for increasing the maximum pwm dimming ratio and avoiding led flicker: Circuitry and methodology for providing LED dimming control in a LED driving system having a switching regulator for providing power supply to drive the LED. The switching regulator includes a switching circuit to which an oscillation signal is applied to control switching of the switching circuit. A dimming control input... Agent: Mcdermott Will & Emery LLP

20070210727 - Discharge lamp lighting device, lighting system and method: A method and apparatus for protecting a discharge lamp lighting device from damage due to mis-wiring of a source of electrical power to the discharge lamp lighting device. The protection apparatus includes a detector, a comparer and an inhibitor. The detector samples at least one monitor point associated with the... Agent: Greenblum & Bernstein, P.L.C

20070205725 - Electronic power control for lamps: A power controller for use with lighting systems including a direct current voltage source, a coil of known inductance, a switch means adapted to control application of the source voltage to the coil, means adapted to select a required duty cycle for the switch such that the input power level... Agent: Osha Liang L.L.P.

20070205726 - Display device with a cold cathode tube: When there is a temperature difference along the length of a cold cathode tube used as a light source for a display device, a cataphoresis phenomenon occurs due to movement of mercury enclosed contained within the tube, thereby shortening the tube life. In order to solve this problem, temperature sensors... Agent: Townsend And Townsend And Crew, LLP

20070205728 - Discharge lamp lighting apparatus: There is provided a discharge lamp lighting apparatus including a dimmer circuit which is provided with a control means to dynamically adjust screen brightness according to an input signal, and a control means to adjust screen brightness based on a user's operation. The dimmer circuit includes: an amplitude adjusting circuit... Agent: Oliff & Berridge, PLC

20070205727 - Plasma-generation power-supply device: A plasma-generation power-supply device includes a transformer connected to an alternating-current power-supply, a rectifier connected to the transformer, an inverter connected to the rectifier a reactor inserted in series in a power line of an ozonizer that is supplied with power from the inverter, and a controllers that controls the... Agent: Leydig Voit & Mayer, Ltd

20070205729 - Auxiliary quartz lamp lighting system for high intensity discharge lamp ballasts: The invention comprises an auxiliary lamp controller and related circuits to operate an auxiliary lamp and circuit to light auxiliary lamps at 120 VAC and 50-60 Hz current connected to an electronic HID ballast operating at a frequency of 50-60 Hz to over 400 kHz and voltages of 120-277 VAC... Agent: Levenfeld Pearlstein Intellectual Property Department

20070205730 - Inductively powered secondary assembly: A lamp assembly configured to inductively receive power from a primary coil. The lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp and the secondary to tune the... Agent: Warner, Norcross & Judd In Re: Alticor Inc.