Electric lamp and discharge devices: systems inventions 11/08

20080290802 - Relay assembly for fog lights: A relay assembly for a fog light is disclosed which comprises a relay housing having a first terminal adapted to being connected to a switch for operating another light and operation of the switch for illuminating a fog light.... Agent: David H. Chervitz Riezman Berger, P.C.

20080290803 - System and method for ambient-light adaptive intensity control for an electronic display: The techniques of the present invention relate to automatically controlling display intensity. The present invention includes a calibration step in which the display intensity settings are correlated to the ambient light intensity conditions. The present invention also includes an automatic adjustment step in which the ambient light intensity is measured... Agent: Howrey LLP-ca

20080290804 - Temperature dependant led current controller: The present invention provides a controller for regulating current in LEDs in electronic displays. The controller uses temperature sensing diodes to detect changes in the LED ambient temperature. As the LED ambient temperature changes, the forward voltage of the temperature sensing diode decreases. A signal processor adjusts the current passing... Agent: Howrey LLP-ca

20080290806 - Cathode potential control device, self-luminous display device, electronic equipment and cathode potential control method: Disclosed herein is a cathode potential control device for controlling a common cathode potential applied to a self-luminous display panel adapted to drive and control the light emission status of each of the pixels by active matrix driving, the cathode potential control device including: a cathode potential determination section adapted... Agent: Rader Fishman & Grauer PLLC

20080290805 - Display device and its driving method: A display panel (110) includes a plurality of optical elements (OEL) each having a pair of electrodes and performing an optical operation according to current passing between the pair of electrodes, a current line (DL), a switch circuit (Tr2) that passes a write current (Ia) with a predetermined current value... Agent: Frishauf, Holtz, Goodman & Chick, PC

20080290807 - Electro-optical device, matrix substrate, and electronic apparatus: To provide a wiring layout of electric power lines, which improves the aperture ratio of the pixel while forming pixels with the same pixel pitch. An electric-optical apparatus according to the present invention comprises multiple pixels (10) arranged in matrix including electro-optical devices driven by receiving electric power from an... Agent: Oliff & Berridge, PLC

20080290808 - Power supply apparatus for arc-generating load: An output of a rectifying circuit (6), which rectifies commercial AC power, is supplied to an inverter (12) through a power factor correction circuit (8). The output of the inverter (12) is voltage-transformed in a transformer (16), rectified in a rectifying circuit (18) and is applied to a xenon lamp... Agent: Duane Morris LLP - PhiladelphiaIPDepartment

20080290809 - Control circuit of a driving circuit of a discharge lamp: A control circuit controls a driving circuit of a discharge lamp. The driving circuit comprises a half bridge and a clock generator that determines the switching frequency of the half bridge. The control circuit comprises a regulator that regulates the value of the switching frequency when the value of the... Agent: Seed Intellectual Property Law Group PLLC

20080290810 - Discharge lamp controls: At least one electric discharge lamp capable of generating a broadband output pulse of a range of wavelengths in the visible spectrum, the output pulse having a predetermined time interval and a predetermined total electrical energy input for the pulse, has a drive circuit for delivering energy pulses to the... Agent: Kohn & Associates, PLLC

20080290811 - Power source unit for discharge lamp and method of controlling the same: A switching element is switched at a high frequency in accordance with control by a pulse generating circuit by using a D.C. power source portion as a power source, which results in that a discharge lamp is driven with a D.C. current through a smoothing circuit. A current detecting resistor... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20080290812 - Transformer driver and transformer driving method: A transformer driver capable of making a load current constant with a simple configuration is provided. A driver 10 of the present invention applies a drive voltage Vd to the primary side of a piezoelectric transformer 11 in which a load 12 is connected to the secondary side. The angular... Agent: Greenblum & Bernstein, P.L.C

20080290813 - Electronically controlling acoustic energy from piezoelectric transformers: A power-supply circuit is described. In particular, the power-supply circuit includes an input node configured to receive a power-supply signal, an output node configured to output a modulated power-supply signal, and a modulation mechanism coupled between the input node and the output node. This modulation mechanism is configured to modulate... Agent: Pvf -- Apple Inc. C/o Park, Vaughan & Fleming LLP

20080290816 - Aquarium lighting device: An aquarium lighting device includes an illumination unit and a control unit. The illumination unit has a plurality of light-emitting diodes (LEDs). The LEDs are disposed adjacent to each other and emit different colors of light. The control unit is electrically connected with the LEDs to control the LEDs.... Agent: Birch Stewart Kolasch & Birch

20080290817 - Led indicator device for ac power plug or socket: An LED indicator device is mounted in an AC power plug or socket and electrically connected in parallel with an AC power source. The LED indicator device includes a driving/current-limiting circuit to which an LED lighting circuit is coupled. The driving/current-limiting circuit includes a driving/current-limiting capacitor and a discharge resistor... Agent: Kamrath & Associates P.A.

20080290815 - Light source driver: Provided is a light source driver which drives a light source including a switch unit which selects a light source; a chopper circuit which supplies power from an inductor to a light emitting diode (LED) via a diode in an on-state of a field effect transistor (FET), where the power... Agent: Sughrue Mion, PLLC

20080290814 - Power controls for tube mounted leds with ballast: A power saving device for a light emitting diode (LED) lamp mounted to an existing fixture for a fluorescent lamp having a ballast assembly and LEDs positioned within a tube and electrical power delivered from the ballast assembly to the LEDs. The LED lamp includes means for controlling the delivery... Agent: Ms. Kam Ling Wong Denovo Lighting

20080290818 - Method, system and remote control for controlling the settings of each of a multitude of spotlights: Method for controlling the settings of each of a multitude of spotlights, such as light intensity, colour and light beam direction, wherein a remote control is used for sending control signals to a control system comprising a multitude of control units for changing the settings of said multitude of spotlights... Agent: Philips Intellectual Property & Standards

20080290820 - Light emitting device and fabrication method thereof and light emitting system using the same: A light emitting device comprises a light emitting element having a first electrode and a second electrode, and a semiconductor member having a cavity in a principal surface thereof, inside which the light emitting element is mounted, and electrically connected to the light emitting element, wherein the semiconductor member is... Agent: Lee, Hong, Degerman, Kang & Waimey

20080290819 - Light-emitting device driver circuits and related applications: Driver circuits for light-emitting devices (e.g., light-emitting diodes), as well as systems and methods associated therewith are provided.... Agent: Luminus Devices , Inc. C/o Wolf, Greenfield & Sacks , P.C.

20080290821 - Electric circuit for individually controlling light-emitting elements and optoelectronic device: The present invention relates to an electric circuit. The electric circuit comprises at least six light-emitting elements and at least three switching networks for individually controlling the light-emitting elements. Each switching network is connected with at least four light-emitting elements. The at least three switching networks are connected with each... Agent: Tarolli, Sundheim, Covell & Tummino L.L.P.

20080290822 - Item and method for wirelessly powering the item: A method and an apparatus according to an embodiment include a member, a first elongate member, and a second elongate member. Each of the first elongate member and the second elongate member are coupled to the member. A receiver configured to convert an electromagnetic wave to a DC power is... Agent: Cooley Godward Kronish LLP Attn: Patent Group

20080284339 - Discharge lamp ballast apparatus: A discharge lamp ballast apparatus has a reflecting mirror 2 and a power source circuit 5. The reflecting mirror 2 is disposed around a discharge light bulb 1 in such a manner as to cast light from the discharge light bulb 1 in one direction. The power source circuit 5... Agent: Birch Stewart Kolasch & Birch

20080284340 - Light weight automotive hid igniter: A light weight, bobbinless high voltage transformer and igniter module is provided that meets low-cost and high-reliability requirements for automotive HID products. A printed circuit board (112) serves as a carrier for low voltage electronic components. A high voltage bar core transformer (114) is held in a cradle (130, 130′)... Agent: Fay Sharpe LLP

20080284341 - Photo detector and method for forming thereof: A photo detector is disclosed. The photo detector has a substrate, a semiconductor layer disposed on the substrate, an insulating layer covered on the semiconductor layer, an interlayer dielectric layer covered on the insulating layer, and two electrodes formed on a portion of the interlayer dielectric layer. The semiconductor layer... Agent: North America Intellectual Property Corporation

20080284342 - Electroluminescent element driving apparatus: The present utility model discloses an electroluminescent element driving apparatus, which mainly resolves the problems caused by insufficient supplying of an electric power to affect the service life of the apparatus in the prior art. The electroluminescent element driving apparatus disclosed by the present utility model includes a power supply,... Agent: Peter J Phillips Cooper & Dunham

20080284343 - Light emitting diode lamp, light emitting diode assembly, and light emitting diode string: An exemplary light emitting diode (LED) lamp is provided. The LED lamp includes a base, an encapsulation, a circuit carrier, a first LED chip, a second LED chip, a first electrode, and a second electrode. The base and the encapsulation cooperatively define a sealed space. The circuit board, along with... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang

20080284344 - Power supply unit for gas discharge processes: A method of generating an output DC voltage of a gas discharge process voltage supply unit, in which in a first voltage transformation stage a first DC voltage is transformed into a second DC voltage of a predetermined voltage range, and the output DC voltage is generated from the second... Agent: Fish & Richardson PC

20080284345 - Circuit arrangement and method for the operation of high-pressure gas discharge lamps: Disclosed is a circuit arrangement for supplying a lamp wattage to a high-pressure discharge lamp (Lp) in the form of an alternating current having an operating frequency. The alternating current is generated by a full bridge that is composed of two half-bridge branches. The lamp wattage can be adjusted via... Agent: Frishauf, Holtz, Goodman & Chick, PC

20080284346 - Light emitting diode array driving apparatus: There is provided a LED array driving apparatus for driving a light emitting array having a plurality of LEDs connected to one another, including: a DC-DC converting part; a current/voltage detecting part detecting a magnitude of a first current flowing through a switching transistor of the DC-DC current converting part... Agent: Lowe Hauptman Ham & Berner, LLP

20080284347 - Lighting control system having a security system input: A lighting control system is operable to be coupled to a security system and is pre-programmed such that the control devices of the lighting control system behave out-of-box in a predetermined manner in response to the security system. The lighting control system comprises a contact closure input that is operable... Agent: Lutron Electronics Co., Inc. Mark E. Rose

20080284349 - Backlight units and display devices: A backlight unit comprising a boost circuit and a backlight element. The boost circuit is coupled to a voltage source and controlled by a PWM signal and a switch signal. When the backlight unit operates in a normal mode, the boost circuit is supplied by the voltage source according to... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080284350 - Bulb type detector for dimmer circuit and inventive resistance and short circuit detection: A bulb detection circuit is associated with a dimmer circuit for a lighting system. The bulb detection circuit is operable to detect whether an incandescent or a fluorescent bulb is received in an electric light socket. The socket may be hardwired to the circuit, or could be plugged into an... Agent: Masco Corporation

20080284352 - 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.

20080284351 - Ignition module for gas discharge lamp: The present invention relates to an ignition module for a gas discharge lamp, said ignition module comprising: a first module for generating a first series of pulse from a low frequency driving signal, a second module for generating a second series of pulse from a high frequency driving signal, and... Agent: Philips Intellectual Property & Standards

20080284348 - Lighting device with user interface for light control: The present invention relates to a lighting system (1) with a user interface (3) for controlling the lighting color and/or intensity of a lighting unit (2) determining the lighting conditions in a room. The user interface (3) is based on a system comprising a detection device (4) and transponders (6).... Agent: Philips Intellectual Property & Standards

20080284354 - Light emitting diode backlight module and a driving method thereof: A light emitting diode (LED) backlight module includes a light emitting matrix, M row signal lines, N column signal lines, a row driver and a column driver. The light emitting matrix has multiple LED units arranged in M rows and N columns. The row driver in use outputs M row-driving... Agent: Lowe Hauptman Ham & Berner, LLP

20080284353 - Lighting apparatus capable of protecting eyesight: Disclosed herein is a lighting apparatus using one or more fluorescent lamps. The lighting apparatus according to the present invention includes one or more sockets, a board, a ballast, and a Direct Current (DC) power supply. The sockets accommodate the fluorescent lamps. The board supports Light Emitting Diodes (LEDs) for... Agent: Birch Stewart Kolasch & Birch

20080284355 - Method and driving circuit for operating a hid lamp: To avoid acoustic resonance in a gas discharge lamp, a lamp current constituted of a number of frequencies is supplied to said lamp. Using a number of frequencies, the total power supplied to the lamp is distributed over said number of frequencies. Since the power per frequency is relatively low,... Agent: Philips Intellectual Property & Standards

20080284356 - Remote dimmable energy-saving device for fluorescent lamps: A remote dimmable energy-saving device (fluorescent lamp) (20) comprises a remote control transmitter and a dimmable electronic ballast (30) with a built-in remote control receiver (38), wherein said receiver and the dimmable electronic ballast are integrated together and arranged in the T4/T5 tube adapter for T8/T10 tube batten or a... Agent: John Chen

20080284357 - Ballast control ic with minimal internal and external components: A ballast controller integrated circuit which executes a specific set of instructions via an integrated state diagram architecture to control a fluorescent lamp or high intensity discharge lamp and protect the ballast. The state diagram architecture controls powering up and down of the IC and the half-bridge circuit driven by... Agent: Ostrolenk Faber Gerb & Soffen

20080278079 - Solid-state illumination lamp structure: A solid-state illumination lamp structure includes a sleeve, a first electrode, a second electrode and a light-emitting assembly. The first electrode is mounted on one end of the sleeve and the second electrode is mounted on the other end of the sleeve. The light emitting assembly is mounted inside the... Agent: Rosenberg, Klein & Lee

20080278080 - Ballast with filament heating and ignition control: A ballast (10) for powering at least one gas discharge lamp (70) having heatable filaments (72,74) includes an inverter (200), a resonant output circuit (400) coupled between inverter (200) and lamp (70), and a filament heating and ignition control circuit (600) coupled to inverter (200) and resonant output circuit (400)... Agent: Fitch Even Tabin And Flannery

20080278081 - Signaling module, liquid container, recording apparatus, and control method: An ink tank receives data signals from a printer and an LED provided on the ink tank is driven on the basis of the received data signals. The LED is driven in an inactive time period that is different from the time period in which the date signals are input... Agent: Canon U.s.a. Inc. Intellectual Property Division

20080278082 - Plasma display device and method for driving the same: There is provided a method for driving a plasma display device characterized by including a first step of turning off first and fourth switching devices and turning on second and third switching devices, a second step of turning on the first switching device and turning off the second to the... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080278083 - Circuit arrangement: A ballast circuit receiving power from the mains and supplying a high frequency lamp current to a lamp is equipped with means to generate both a common mode current and a differential mode current through the mains supply terminals. Both these currents are phase shifted 180 degrees with respect to... Agent: Philips Intellectual Property & Standards

20080278084 - Led lamp set apparatus: The present invention relates to a LED lamp set apparatus, comprises a gas discharge tube and a LED connected in series, the gas discharge tube is a neon tube, an argon tube, a helium tube or a krypton tube, or a gas tube in which the other inert gases is... Agent: Sinorica, LLC

20080278086 - Electronic ballast having a boost converter with an improved range of output power: A boost converter for an electronic dimming ballast for driving a gas discharge lamp has an increased output power range. The boost converter operates in discontinuous conduction mode when a desired intensity of the lamp is below a first threshold intensity, and operates in critical conduction mode when the desired... Agent: Lutron Electronics Co., Inc. Mark E. Rose

20080278085 - Program start ballast: A ballast (10) for powering at least one gas discharge lamp (70) in a program start mode comprises an inverter (200), a resonant output circuit (400), and a control circuit (600). During operation of ballast (10), control circuit (600) monitors a voltage within resonant output circuit (400). When the monitored... Agent: Fitch Even Tabin And Flannery

20080278087 - Pulse width modulation apparatus and apparatus for driving light source having the same: Provided are a pulse width modulation (PWM) apparatus and a light source-driving apparatus including the PWM apparatus. The PWM apparatus includes a voltage division part, a capacitor part, a first operational amplifier, a first noise reduction part, and a second operational amplifier. The voltage division part divides and outputs an... Agent: Saliwanchik Lloyd & Saliwanchik A Professional Association

20080278089 - Active lamp current crest factor control: Ballasts with crest factor control are provided. During a transition to a given half cycle steady state, the current provided to reach the steady state is varied, such as turned off for a short period. This reduction during the transition may reduce or eliminate overshoot. The crest factor control is... Agent: Brinks Hofer Gilson & Lione

20080278088 - Ballast with ignition voltage control: A ballast (10) for powering a lamp load (70) comprising one or more gas discharge lamps (72,74) includes an inverter (200), a resonant output circuit (400), and a control circuit (600). During operation of ballast (10), control circuit (600) monitors at least one voltage within one or more series resonant... Agent: Fitch Even Tabin And Flannery

20080278090 - Reset circuit for power-on and power-off: A circuit for resetting a display having at least one driver outputting a driving voltage through an output channel to a corresponding data line of a panel comprises a first switch and a second switch. The first switch is actuated by a control pulse to transfer a reset voltage to... Agent: Wpat, PC Intellectual Property Attorneys

20080278091 - Method and circuit for driving back a light emitter of a display apparatus: A back light emitter (4) of a display apparatus is supplied with alternating current (AC) bursts. An emitted light representing signal is generated from the AC bursts as supplied to the light emitter (4). The emitted light representing signal is compared with a reference signal REF to provide an error... Agent: Philips Intellectual Property & Standards

20080278092 - High power factor led-based lighting apparatus and methods: Power control methods and apparatus in which a switching power supply provides power factor correction and an output voltage to a load via control of a single switch, without requiring any feedback information associated with the load. The single switch may be controlled without monitoring either the output voltage across... Agent: Philips Intellectual Property & Standards

20080278093 - Backlight module with light tubes and liquid crystal display with same: An exemplary backlight module (20) includes a plurality of light units (22) disposed in parallel. Each light unit includes two opposite electrodes (221, 222). Two alternating current (AC) voltages having 180° phase difference and a same frequency are respectively applied to the two opposite electrodes, and two AC voltages respectively... Agent: Wei Te Chung Foxconn International, Inc.

20080278095 - Compact fluorescent lamp with outer envelope and method for manufacturing:

20080278096 - Configurable ballast: A configurable ballast (20) employs a microprocessor (30) and a lead wiring (50) operable to electrically communicate a programming signal (PS) to the microprocessor (30). The programming signal (PS) conveys information to configure a plurality of ballast parameters related to the configurable ballast (20) operating a specific lighting configuration (11)... Agent: Philips Intellectual Property & Standards

20080278094 - Method for driving a lamp in a lighting system and a control apparatus for driving such lamp: A method and a control apparatus for driving a lamp (14) in a lighting system, in particular a lamp laving a fast response to a change of an amount of energy supplied through the lamp, in which a device controller 8 is connected with the lamp (14) The device controller... Agent: Philips Intellectual Property & Standards

20080278098 - Light emitting diode drive circuit: A drive circuit includes a constant voltage circuit to supply a constant voltage to one terminal of a load, a constant current circuit to supply a predetermined constant current to another terminal of the load in accordance with a pulse signal input externally, and a first reference voltage generator to... Agent: Dickstein Shapiro LLP

20080278097 - Systems and methods for controlling a solid state lighting panel: Provided are systems and methods for controlling a solid state lighting panel. A system according to some embodiments of the invention includes a controller that provides control signals to current drivers that are configured to provide current to multiple solid state lighting devices. The system also includes a sequence generator... Agent: Myers Bigel Sibley & Sajovec, P.A.

20080278099 - Controlling electroluminescent panels in response to cumulative utilization: An electronic device includes a light source, which generates light in response to a signal, and a controller. Because the luminosity of the light source decays over time, the controller generates a utilization value based on a cumulative time that the light source is emitting light, and regulates the signal... Agent: Myers Bigel Sibley & Sajovec, P.A.

20080278100 - Lighting system using gps receiver: A lighting system using a GPS receiver is provided. The lighting system includes: a GPS receiver for calculating sunrise time and sunset time from an inputted GPS signal and outputting an on/off signal and a satellite detection indicating signal according to the calculated sunrise time and sunset time; a security... Agent: Jacobson Holman PLLC

20080272698 - High frequency helical amplifier and oscillator: Disclosed herein is a class of mm and sub mm wavelength amplifiers and oscillators operating with miniature helical slow wave circuits manufactured using micro fabrication technology. The helices are supported by diamond dielectric support rods. Diamond is the best possible thermal conductor, and it can be bonded to the helix.... Agent: Fay Sharpe LLP

20080272699 - Auxiliary vehicle light apparatus: This invention comprises an auxiliary light apparatus for use in combination with a backup light apparatus of a truck or other vehicle. The auxiliary light apparatus comprises a male or female electrical plug for connection to a mating plug on the original vehicle backup light apparatus; an electrical voltage relay... Agent: Lawrence G. Zurawski Allegheny Building, Suite 600

20080272700 - Plasma generating device: In the present invention, a plasma generating device is provided for generating a plasma with a uniform intensity. The plasma generating device comprises at least a first antenna to transmit the first electromagnetic wave, at least a second antenna to transmit the second electromagnetic wave, and an insulator defining an... Agent: Volpe And Koenig, P.C.

20080272702 - Device for determining characteristics a lighting unit: The present invention relates to a device for determining characteristics of a lighting unit, comprising at least two flux sensor each having different wavelength characteristics and being arranged to measure light emitted from the lighting unit, yielding two measurements, and means for calculating a dominant wavelength and a real flux... Agent: Philips Intellectual Property & Standards

20080272701 - Method for driving a light source and backlight assembly employing the same: In a method of driving a light source, light generated by a light source is sensed in order to detect color coordinates of a red color, color coordinates of a green color and color coordinates of a blue color. A light source color space formed by the color coordinates of... Agent: Cantor Colburn, LLP

20080272703 - System for displaying image: A pixel driving circuit array is disclosed, comprising a first capacitor and a second capacitor. The first capacitor comprises a first electrode, an insulator layer and a common electrode. The second capacitor comprises a second electrode, the insulator layer and the common electrode. The first capacitor and the second capacitor... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080272704 - Plasma display and driving method thereof: The present invention relates to a plasma display device and a driving method thereof. The plasma display device includes a first switch, and a second switch. The first switch has a first end electrically connected to a first power source that supplies a first voltage and a second end electrically... Agent: Robert E. Bushnell

20080272705 - Light emitting diode lamp assembly having a voltage-regulating capability: The light emitting diode (LED) lamp assembly has an LED light string, a power plug, an AC to DC converter and a voltage-regulating element. The LED light string has multiple LEDs connected in series. The power plug is connected to the LED light string and obtains an AC power from... Agent: Apex Juris, PLLC

20080272706 - Hybrid power supply system: A hybrid power supply system including piezoelectric and ferrite transformers for driving a discharge lamp is provided. Specifically, the hybrid power supply system includes a rectifier/filter, a piezoelectric inverter, and a ferrite converter. The rectifier/filter has an input terminal connected to an external AC voltage to convert the external AC... Agent: Ladas & Parry LLP

20080272708 - Driving circuit for and semiconductor device for driving laser diode: A driving circuit supplies a suppression current (I4) which reduces a decrease in a driving current (Idrive) immediately after occurrence of an overshoot at the time of the rise of the driving current (Idrive) to a laser diode (1). The driving circuit draws a suppression current (I5) which reduces an... Agent: Buchanan, Ingersoll & Rooney PC

20080272707 - Lamp ballast circuit: In one embodiment, a power switch driving circuit is provided for a fluorescent lamp ballast. The circuit includes a first power switch driven by a first driver. A controller has a first output terminal for outputting a control signal for controlling the first driver. The first driver includes a first... Agent: Sidley Austin LLP

20080272709 - Three-way dimming ballast circuit: A three-way dimming ballast circuit for driving a ballast power switching circuit powering a gas discharge lamp such as a CFL. The circuit includes a driver circuit for driving high and low side switches of the ballast power switching circuit; a control circuit for driving the driver circuit including an... Agent: Ostrolenk Faber Gerb & Soffen

20080272710 - Reference current generating circuit, organic el drive circuit and organic el display device employing it: An organic EL display device having an organic EL drive circuit has a reference current generation circuit that switches the column line drive in response to changing of the dot arrangement of R, G and B through changeover switch circuits. Three D/A converter blocks constituted by a plurality of switch... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20080272711 - Apparatus and method for eliminating electric arc: The present invention relates to an apparatus and a method for eliminating electric arc in the field of lighting electronics. Whether or not electric arc is likely to be produced is determined through monitoring the current variation in the lighting circuit loop. If electric arc is likely to be produced,... Agent: Philips Intellectual Property & Standards

20080272713 - Driving circuit of organic light emitting diode display panel and discharging method using the same: e

20080272712 - Variable color light emitting device and method for controlling the same: The present invention relates to a variable color light emitting device (10) comprising a light emitting diode (12) for emitting light, which diode in turn comprises a plurality of electrically conducting layers (14, 16, 18), at least one of which being such that lateral current spreading in the diode is... Agent: Philips Intellectual Property & Standards

20080272714 - Programmable lighting device: A flashlight (1) having a control unit (4) with a push button (12) for activating the flashlight (1). The control unit (4) connects to a computer via USB port, whereby user-configurable control information is downloaded. A computer program running on the computer enables operating conditions of the flashlight to be... Agent: Arent Fox LLP