Electric lamp and discharge devices: systems inventions 01/07

20070018585 - Multi-view display: A multi view display (49) is arranged to provide large viewing zones (23,24) while producing little or no cross-talk The display may include a barrier (20) comprising a plurality of colour portions (20a, 20b, 20c) that co-operate with colour filters (19a-19f) in a display panel (14) to selectively direct light... Agent: Philips Intellectual Property & Standards

20070018586 - Lighting control apparatus of vehicle-purpose lighting device: A lighting control apparatus of a vehicle-purpose lighting device can contribute power saving effect, and prevention of a deterioration of a semiconductor light source, and also, can maintain driving safety characteristics. When an input terminal becomes a low level while a vehicle is stopped, a PNP transistor is turned ON,... Agent: Osha Liang L.L.P.

20070018587 - Lighting and/or signalling device for a vehicle, associated with electronics with a high level of integration: The device according to the invention comprises a light source and electronic supply and control means. The electronic means comprise at least one circuit comprising at least one stack of chips formed from at least two power components (IGBTb1, IGBTh1). According to one embodiment, the light source comprises a discharge... Agent: Matthew R. Jenkins, Esq.

20070018588 - Display device using electron source elements and method of driving same: In the case where the number of pixels is increased in a display device making use of electron source elements, a period, in which one pixel is caused to continue to emit light, shortened, and so there is caused a need of applying a high voltage between upper and lower... Agent: Nixon Peabody, LLP

20070018589 - Image forming apparatus utilizing a piezoelectric-transformer high-voltage power supply and method for controlling the same: A piezoelectric-transformer high-voltage power supply in combination with an image-forming apparatus including a latent-image forming section configured to form an electrostatic latent image on an image carrier, a developing section configured to form a toner image on the electrostatic latent image, and a transfer section configured to transfer the toner... Agent: Canon U.s.a. Inc. Intellectual Property Division

20070018590 - Circuit arrangement having a converter without a transformer but with an inductor for the pulsed operation of dielectric barrier discharge lamps: The circuit arrangement according to the invention comprises an inductor-type converter for the pulsed operation of dielectric barrier discharge lamps (EL). The invention proposes both a half bridge variant and a full bridge variant. By selecting the inductance value of the inductor (L), it is possible to influence the edge... Agent: Frishauf, Holtz, Goodman & Chick, PC

20070018592 - Circuit arrangement and method for operating at least one electric lamp: The present invention relates to a circuit arrangement for operating at least one electric lamp (LP) having a drive circuit (16), which has at least one terminal for a system voltage (UN) on the input side and at least one terminal for the at least one electric lamp (LP) on... Agent: Osram Sylvania Inc

20070018591 - Device and method for lighting high-voltage discharge lamp: An operating device control section (4) controls an output current of a DC-DC converter (1), and also controls a commutation frequency of a commutator (2) that converts a direct current output from the DC-DC converter into an alternating current. The operating device control section operates a discharge lamp, at the... Agent: Hamre, Schumann, Mueller & Larson P.C.

20070018593 - Balanced current lamp module and multi-lamp circuit: A balanced current lamp module driven by a power source includes a first balanced current unit, a second balanced current unit and a balanced transformer. The first balanced current unit includes a first transformer, a first lamp and a second lamp. The first transformer has one coil electrically connected with... Agent: Birch Stewart Kolasch & Birch

20070018594 - Holiday light string devices: Bi-polar same-color LED devices are described comprising at least a pair of substantially same-color light emitting diodes connected in inverse parallel. The devices are advantageously used in AC powered light strings, e.g., connected in series blocks. Parallel block interconnections of the devices in an AC powered light string are also... Agent: Dickstein Shapiro LLP

20070013315 - Bipolar pulse forming line: A bipolar pulse forming transmission line module for linear induction accelerators having first, second, third, fourth, and fifth planar conductors which form an interleaved stack with dielectric layers between the conductors. Each conductor has a first end, and a second end adjacent an acceleration axis. The first and second planar... Agent: The Regents Of The University Of California

20070013316 - Lampholder and lamp string device having an automatic bypass device: A lampholder and a lamp string device having an automatic bypass device are proposed. A Zener diode is provided in each lampholder. When the light bulb in a lampholder burns out or gets loose, the voltage across the two terminals of the Zener diode rises to the Zener breakdown voltage... Agent: Rosenberg, Klein & Lee

20070013317 - Colloidal nanoparticles and apparatus for producing colloidal nanoparticles in a dense medium plasma: An apparatus is utilized for producing colloidal dispersions of nanoparticles of electrically conducting materials. The colloidal dispersions are produced in a dense media plasma reactor comprising at least one static electrode and at least one rotating electrode. The plasma reaction sputters off minute particles of the electrically conducting material from... Agent: Foley & Lardner LLP

20070013318 - Display apparatus employing a field emission device and brightness control device and method therefor: A display apparatus includes a field emission device including a first electrode serving as a display plate on which phosphor material is coated, and a second and a third electrode for emitting electrons to be ejected onto the first electrode, wherein the phosphor material emits light when the electrons are... Agent: Bacon & Thomas, PLLC

20070013319 - Auxilary lighting circuit for high intensity discharge system: The embodiment disclosed herein relates to a lighting system that includes an auxiliary lighting circuit for use with an electronic HID ballast. The lighting system comprises a power supply configured to provide power to a high intensity discharge (HID) lamp via an electronic ballast and a ballast power sensing component... Agent: Fay, Sharpe, Fagan, Minnich & Mckee, LLP

20070013320 - Feedback circuit for push-pull inverters: A feedback circuit for push-pull inverters aims to improve the existing push-pull inverters that provide input electricity to a discharge lamp at a phase difference of 180 degrees without feedback electricity to regulate frequency signals and cannot effectively control uniform luminance of the discharge lamp. The invention includes a feedback... Agent: Birch Stewart Kolasch & Birch

20070013321 - Lighting control apparatus of lighting device for vehicle: When a forward direction voltage of any of several LEDs 14 to 20 is lowered, a drain voltage of an NMOS transistor 70 employed in any of series regulators 24 to 30 becomes higher than a defined voltage. A zener diode ZD1, which is connected to the LED where the... Agent: Fish & Richardson P.C.

20070013322 - Led temperature-dependent power supply system and method: A LED based lighting system (20) employs a LED load temperature sensor (40) for generating a temperature-sensing signal (TSS) indicative of an operational temperature of the LED load (10), a LED current sensor (50) for generating a current-sensing signal (CSS) indicative of a flow of the LED current (ILED) through... Agent: Philips Intellectual Property & Standards

20070013323 - Simplified light-emitting diode (led) hysteretic current controller: An LED current control device (100) includes an array of one or more LEDs (10) electrically connected to a current-sensing element (20). A sense signal produced by the current-sensing element may be amplified by a single-ended amplifier (30) and sent to a switching controller (40 and 50). The switching controller... Agent: Larry Palguta, Esq. Honeywell International, Inc.

20070007898 - Integrated lamp with feedback and wireless control: A lamp assembly (50) employs a reflector (52) defining a light reflecting area (53), and a heat sink (54) defining a circuit housing area (55). A LED assembly (51) is disposed within the light reflecting area (53) and heat sink (54) dissipates heat away from LED assembly (51). One or... Agent: Philips Intellectual Property & Standards

20070007900 - Display panel with phosphorescent and fluorescent pixels: A display panel comprises a plurality of arranged pixels of organic EL devices, each having a pair of electrodes and a luminescent layer containing an organic EL material and sandwiched between the electrodes. The plurality of arranged pixels include fluorescent pixels of organic EL devices formed by mainly using a... Agent: Fitzpatrick Cella Harper & Scinto

20070007899 - Electric power supply for at least two electrodes: An electrical supply device configured to deliver energy to a structure that includes at least two electrodes and a space containing a gas intended to be excited. The device includes a voltage generator, an inductor connected to the generator and connected to the structure to supply the two electrodes with... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070007901 - Dc/dc converter for supplying two gas discharge lamps: The invention relates to a DC/AC converter for supplying two gas discharge lamps, comprising a double bridge configuration of four switch elements, a third series circuit interconnecting the input terminals comprising a first capacitor and a second capacitor with substantially equal capacitance, a first and a second gas discharge lamp... Agent: Philips Intellectual Property & Standards

20070007902 - Power source apparatus: A power source apparatus is disclosed in this invention, specifically a power source apparatus comprising a voltage amplitude control unit that employs an active power factor corrector to control the output DC voltage by applying positive or negative logic control voltage, incorporated with high frequency power source circuit and high... Agent: Jacobson Holman PLLC

20070007903 - Single-chip driving device for a high intensity discharge lamp: A single-chip driving device for a high intensity discharge lamp includes a high voltage direct current electric power supply system, a power control circuit, a frequency transformation circuit, and an ignition steady current circuit. The high voltage direct current electric power supply system transforms an external power supply into a... Agent: Nikolai & Mersereau, P.A.

20070007904 - Current detector circuit: The object of the present invention is to provide a current detecting circuit capable of detecting a current flowing to a switching device with high accuracy, with less power loss, with high voltage, and in an insulated form. A current detecting circuit of the present invention is provided with a... Agent: Birch Stewart Kolasch & Birch

20070007905 - Low frequency triggered electronic ballast: An electronic ballast, The ballast use voltage controlling the energy storage capacitor, Furthermore, the electronic ballast continuously detects the current value and the voltage value of the HID lamp, change the pulse-width signal according to the detection result to control the HID lamp within a stable working current.... Agent: Bacon & Thomas, PLLC

20070007906 - Rare gas fluorescent lamp apparatus: When a control unit is operated by a lighting control signal, when a reference voltage source unit outputs the reference voltage, voltage inputted into an error amplifier from a time constant circuit increases gradually with passage of time so as to reach the reference voltage. The error amplifier compares the... Agent: Rader Fishman & Grauer PLLC

20070007907 - Auxiliary quartz lamp lighting system for electronic high intensity discharge lamp ballasts: The invention comprises a method and electronic circuit to operate a quartz auxiliary lamp lighting lamp and circuit to light a quartz auxiliary lamp at 120 Vac and 50-60 Hz current connected to an electronic HID ballast operating at a frequency of 100 Hz to over 400 kHz and voltages... Agent: Levenfeld Pearlstein Intellectual Property Department

20070007908 - Current balancing technique with magnetic integration for fluorescent lamps: Methods and apparatus are disclosed for balancing currents passing through multiple parallel circuit branches and in some cases through parallel fluorescent lamps. Single transformers with multiple-leg magnetic cores are wound in specific manners that simplify current balancing. Conventional three-legged EE-type magnetic cores, with disclosed windings are used to balance current... Agent: Perkins Coie LLP Patent-sea

20070007910 - Current balancing techniques for fluorescent lamps: Methods and apparatus are disclosed for balancing currents passing through multiple circuit loads and in some cases through fluorescent lamps. Multiple-leg magnetic cores are wound in specific manners to simplify current balancing. Conventional three- or more than three-legged EE- and EI-type magnetic cores, with disclosed windings are used to balance... Agent: Perkins Coie LLP Patent-sea

20070007909 - Equalizing discharge lamp currents in circuits: Methods and apparatus are disclosed for balancing currents passing through multiple parallel circuit branches and in some cases through parallel fluorescent lamps. Single transformers with multiple-leg magnetic cores are wound in specific manners that simplify current balancing. Conventional three-legged EE-type magnetic cores, with disclosed windings are used to balance current... Agent: Perkins Coie LLP Patent-sea

20070007913 - Discharge lamp lighting circuit: A discharge lamp lighting circuit 1 is provided with a DC-AC conversion circuit 3 having a plurality of switching elements 5H, 5L and a series resonance circuit (8, 9, 7p), and control means 17 for preventing a situation in which the drive frequency of the switching element remains less than... Agent: Fish & Richardson P.C.

20070007911 - High-reliability light fixture and method: A light fixture includes multiple sets of light-producing devices, such as bulbs. A first set of bulbs is illuminated. When one or more bulbs in the first set of bulbs fails, the failure is detected, and a second set of bulbs is illuminated: If a number of good bulbs remaining... Agent: Martin & Associates, LLC

20070007912 - Power output device with protection function for short circuit and overload: A power output device includes a bridged output stage, a reference voltage generator and a detecting unit to compare the output voltages from the aforementioned two units. The bridged output stage may be implemented by a full-bridge or a half-bridge configuration. The reference voltage generator is symmetric to the bridged... Agent: Jianq Chyun Intellectual Property Office

20070001614 - Plasma lamp with dielectric waveguide: A dielectric waveguide integrated plasma lamp (DWIPL) with a body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2, and having a shape and dimensions such that the body resonates in at least one resonant mode when microwave energy of an appropriate frequency... Agent: Schwegman, Lundberg, Woessner & Kluth, P.A.

20070001615 - Electron emission device and driving method thereof: An electron emission device and a method of driving the electron emission device are capable of preventing the deterioration of luminance in displaying moving images by inhibiting the emission delay. The electron emission device includes cathode electrodes, gate electrodes formed over the cathode electrodes, and an insulating layer disposed between... Agent: Christie, Parker & Hale, LLP

20070001616 - Energy storage system for powering vehicle electric user devices: An energy storage system for powering electric user devices of a vehicle, the energy storage system having a battery; a capacitive element connected parallel to the terminals of the battery; and an inductive element connected in series to the battery, between the battery and the capacitive element; to effectively regulate... Agent: Baker & Daniels LLP 111 E. Wayne Street

20070001617 - Electronic lighting ballast: An electronics enclosure has a mains input and a lamp output. A power factor correction circuit is installed in the enclosure, to provide a DC output voltage. An inverter is also installed in the enclosure. Control electronics is also installed in the enclosure to control the inverter, and to receive... Agent: Blakely Sokoloff Taylor & Zafman

20070001620 - Display apparatus: Provided is a display apparatus that includes a light source, that further includes a current generator for outputting a predetermined driving current. Further provided is a first path for supplying the driving current output by the current generator to the light source and a second path for intercepting the driving... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20070001618 - Driving apparatus for lamp of liquid crystal display device: A backlight driving apparatus comprises a rectifying-smoothing part to convert an AC voltage supplied from a common power source into a DC voltage, a power factor correction circuit part to boost the DC voltage converted from the rectifying-smoothing part, and a DC/AC converter to convert the boosted DC voltage from... Agent: Morgan Lewis & Bockius LLP

20070001619 - Load driving device and load driving method: Provided is a load driving device controlling a drive of a load including a driver for periodically turning on/off a current according to a switching clock signal and supplying a average driving current to the load. Further provided is a dimming controller for controlling the driver to turn on/off the... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20070001622 - Balance transformer: The balance transformer with an auxiliary winding connecting to two CCFLs comprises a magnetic core that acts as a path for magnetic flux. The magnetic core is wound with a first coil, a second coil and an auxiliary coil. The winding direction of the first coil and the second coil... Agent: Rosenberg, Klein & Lee

20070001621 - Multiple lamp balance transformer and drive circuit: The invention describes a multiple lamp balance transformer and a drive circuit. The multiple lamp balance transformer has two magnetic cores with a closed magnetic flux path and two coils wound around the closed magnetic flux path. The two coils have the same number of windings. The impedance property of... Agent: Rosenberg, Klein & Lee

20070001623 - Lamp end of life indicator: The apparatus signals when a high intensity discharge lamp is nearing the end of its operational life. The apparatus includes a lamp drive signal source that provides a drive signal to the high intensity discharge lamp. The lamp drive signal source has a measurable drive parameter. A controller controls the... Agent: Barley Snyder, LLC

20070001624 - System and method for power supply for lamp with improved constant power mode control and improved boost current circuit: A power supply and method for operating a power supply for a short arc lamp are provided herein. The power supply and method can operate to provide to a number of advantageous operations. One aspect herein provides a power supply which utilizes a constant power mode type of operation. However,... Agent: Stallman & Pollock LLP

20070001626 - Backlight unit and method of driving the same: A backlight unit includes at least one cold cathode fluorescent lamp arranged at a lower end of a bottom cover, external electrode fluorescent lamps arranged on the bottom cover above the cold cathode fluorescent lamp, and inverters disposed on a rear side of the bottom cover for driving the at... Agent: Jenkens & Gilchrist, P.C.

20070001625 - Light emitting diode driving circuit for backlight having constant current control function: An LED driving circuit of a backlight unit includes a switch connected between an input of direct voltage and a ground to switch the direct voltage according to a switching pulse; a rectifying diode connected between a connecting node and one terminal of the LED array to rectify driving voltage... Agent: Mcdermott Will & Emery LLP

20070001627 - Protection for external electrode fluorescent lamp system: The present invention provides a protection means for a driving circuit which drives a set of external electrode fluorescent lamps (EEFL). The driving circuit with protection function for driving a set of EEFLs consistent with the present invention includes: a transformer connected to the set of EEFLs; a switching network... Agent: Wagner, Murabito & Hao LLP Third Floor

20070001628 - Integral detector-lighting apparatus with multiple mounting orientations: According to the present invention, a specific example is provided in the shape of a rectangular box constructed with a front cover, a decorative cover, a box, one or multiple light sources and a sensor module. A first connecting point with a docking bay is electrically provided on one pre-determined... Agent: Wolf Greenfield & Sacks, PC