Patents Issued in September 20, 2007
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Publication number: 20070216290Abstract: An organic EL light emitting display device is provided which includes a matrix array having a plurality of pixel circuits, each including an organic light emitting element. A scan driving circuit and a current supply circuit are coupled to the pixel circuits. In addition, a plurality of pads are provided which are adapted to connect the scan driving circuit and the current supply circuit to external circuits. In accordance with one embodiment, the pads are located to be closer to the current supply circuit than to the scan driving circuit.Type: ApplicationFiled: May 15, 2007Publication date: September 20, 2007Inventors: Genshiro Kawachi, Toshihiro Sato, Masaaki Okunaka, Noaki Tokuda
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Publication number: 20070216291Abstract: An organic light emitting diode display includes an organic light emitting diode panel which transmits light downward to display an image, an adhesive member attached on the organic light emitting diode panel, a circuit film attached on the adhesive member, and a printed circuit board connected with the circuit film, wherein the circuit film and the printed circuit board are positioned at the upper portion of the organic light emitting diode panel and the circuit film is absent a fold. Thus, because the printed circuit board is positioned above the organic light emitting diode panel, and the circuit film that connects a driving chip and the printed circuit board need not be folded, the circuit film does not come off of the organic light emitting diode panel, and thus, the production yield can be enhanced.Type: ApplicationFiled: August 22, 2006Publication date: September 20, 2007Inventor: Kwang-Chul Jung
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Publication number: 20070216292Abstract: The present invention provides a composite material having high conductivity, a light-emitting element and a light-emitting device using the composite material. Further, the present invention provides a manufacturing method of a light-emitting element which is suitable for mass production. A light-emitting element of the present invention includes a layer including a luminescent substance between a pair of electrodes. The layer including a luminescent substance has a composite material which includes an organic compound, and an inorganic compound showing an electron donating property to the organic compound. Since the light-emitting element of the present invention includes a composite material made by combining an organic compound and an inorganic compound, the carrier injecting property, carrier transporting property, and conductivity thereof are excellent, and thus, the driving voltage can be reduced.Type: ApplicationFiled: December 2, 2005Publication date: September 20, 2007Inventors: Satoshi Seo, Satoko Shitagaki, Hiroko Abe, Takako Takasu, Ryoji Nomura
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Publication number: 20070216293Abstract: It is an object of the present invention to provide a light-emitting material with high light emission intensity. It is another object to provide a light-emitting element with high light emission efficiency. Moreover, it is another object to provide a light-emitting device and an electronic appliance with reduced power consumption. A light-emitting material contains at least a light-emitting substance, a base material, and an additive which is an element belonging to group 14 of the periodic table or a compound containing two or more kinds of elements belonging to group 14, or a compound containing at least two or more kinds of elements each belonging to a different group chosen from group 13, group 14, and group 15. Due to the light-emitting material, a light-emitting element and an electronic appliance which has high light emission efficiency and can be driven at a low voltage can be obtained.Type: ApplicationFiled: February 27, 2007Publication date: September 20, 2007Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Kohei YOKOYAMA, Yoshiaki YAMAMOTO, Junichiro SAKATA, Takahiro KAWAKAMI
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Publication number: 20070216294Abstract: A metal coordination compound having a structure according to formula (1) or (3), wherein ligand L is a phenylisoquinoline ligand and ligand L2 is different from L: A luminescence device and a display apparatus using this metal coordination compound are provided.Type: ApplicationFiled: March 30, 2007Publication date: September 20, 2007Applicant: Canon Kabushiki KaishaInventors: Jun Kamatani, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Koji Noguchi, Takashi Moriyama, Satoshi Igawa, Manabu Furugori
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Publication number: 20070216295Abstract: The invention is intended to provide an organic EL element provided with a film capable of preventing immigration of impurity even when a material such as dope type PEDOT/PSS of which impurity can immigrate to a light emitting layer is used and a production method therefore, the film of the organic EL element being excellent in uniformity and easily formed. In the organic EL element, a first electrode, an organic light emitting medium layer, and a second electrode are formed on a substrate; the organic light emitting medium layer at least includes a positive hole transport layer and an organic light emitting layer; and a second positive hole transport layer having positive hole mobility in the range of 1×10?4 to 1 cm2/v·s is formed between the positive hole transport layer and the organic light emitting layer.Type: ApplicationFiled: March 8, 2007Publication date: September 20, 2007Applicant: Toppan Printing Co., Ltd.Inventor: Takahisa Shimizu
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Publication number: 20070216296Abstract: An organic light emitting display is disclosed. The organic light emitting display includes a substrate, a thin film transistor positioned on the substrate, a planarization layer positioned on the thin film transistor, an emission unit, and a passivation layer. The emission unit is positioned on the planarization layer and electrically connected to the thin film transistor. The passivation layer is positioned on the substrate to cover an edge portion of the planarization layer.Type: ApplicationFiled: March 19, 2007Publication date: September 20, 2007Inventors: Chang Nam Kim, Sang Kyoon Kim, Seong Joong Kim, Hong Gyu Kim
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Publication number: 20070216297Abstract: A light emitting diode (“LED”) Device with Flexible Containment for Liquid Encapsulant is disclosed. The LED Device with Flexible Containment for Liquid Encapsulant includes an LED in a concave base housing, the LED having a p-doped semiconductor body and an n-doped semiconductor body. The device further includes a liquid containment chamber over the LED, configured to contain liquid encapsulant, and space permitting expansion and contraction of the liquid encapsulant in the chamber.Type: ApplicationFiled: March 6, 2006Publication date: September 20, 2007Inventors: Margaret Leng, Janet Chua
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Publication number: 20070216298Abstract: There is provided an organic electroluminescence (EL) device panel including a heat dissipation member formed on a lead-out wiring electrically connected to a first electrode or a second electrode. According to the organic EL device panel of the present invention, the organic EL device is not adversely affected by heat at a time of manufacturing and driving, so deterioration of pixels of the organic EL device is not generated.Type: ApplicationFiled: February 15, 2007Publication date: September 20, 2007Applicant: CANON KABUSHIKI KAISHAInventor: Kumiko Kaneko
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Publication number: 20070216299Abstract: A display device includes a display panel including a plurality of pixels, a printed circuit board driving the display panel, a flexible printed circuit and a driving package. The flexible printed circuit includes an input unit attached to a top surface of the printed circuit board and an output unit attached to the display panel. The driving package includes an input unit attached to the top surface of the printed circuit board and an output unit attached to the display panel. A length from a central portion of the driving package to the input unit of the driving package is larger than a length from a central portion of the flexible printed circuit to the input unit of the flexible printed circuit.Type: ApplicationFiled: March 20, 2007Publication date: September 20, 2007Applicant: SAMSUNG ELECTRONICS CO., LTD.,Inventors: Kyong-Tae PARK, Chun-Seok KO
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Publication number: 20070216300Abstract: An organic opto-electronic device is disclosed. One embodiment comprises a substrate, one or more organic device layers disposed over the substrate, and a multi-layer barrier disposed over the one or more organic device layers, the multi-layer barrier comprising a parylene-based layer and a layer comprising an ultraviolet protectant material.Type: ApplicationFiled: May 7, 2007Publication date: September 20, 2007Applicant: International Display Systems, Inc.Inventors: Chung Lee, Chieh Chen, Atul Kumar
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Publication number: 20070216301Abstract: Electroluminescent (EL) displays, media, and members, and methods associated therewith. One such display includes an EL material, conductor layers, and a reflective image formed by a pattern of imaging substance applied adjacent at least one of the conductor layers. The EL material is between at least two of the conductor layers, and at least one of the conductor layers is applied adjacent the EL material in a pattern to form a conductive image. Upon application of an operational potential to the at least two of the conductor layers having the EL material therebetween, the display can be illuminated in an area corresponding to the conductive image.Type: ApplicationFiled: March 17, 2006Publication date: September 20, 2007Inventors: Frank Anderson, Timothy Strunk
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Publication number: 20070216302Abstract: Provided is a gas discharge display panel that exhibits a favorable display performance by maintaining a wall charge retaining power, controlling discharge delay within a range adequate for optimal image display, and reducing the discharge starting voltage at comparatively low cost. Also provided is a PDP that exhibits more reliability with enhanced display quality by further improving the secondary electron emission factor ? compared to conventional cases and lowering the discharge starting voltage to widen the driving margin. In addition, provided is a manufacturing method of a gas discharge display panel, by which the manufacturing cost lowers by reduction of the exhaustion time in the sealing exhaustion process, and by which the driving circuit cost is reduced. In the present invention, the protective layer contains, with respect to a MgO content of the protective layer, Si in a range of 20 mass ppm to 5000 mass ppm inclusive and H in a range of 300 mass ppm to 10000 mass ppm inclusive.Type: ApplicationFiled: April 7, 2005Publication date: September 20, 2007Inventors: Jun Hashimoto, Masatoshi Kitagawa, Mikihiko Nishitani, Masaharu Terauchi, Shinichi Yamamoto
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Publication number: 20070216303Abstract: A plasma display panel (PDP) may include a first substrate, a second substrate spaced apart from the first substrate, a barrier rib interposed between the first and second substrates, the barrier rib including passages there through defining discharge cells, barrier rib electrodes including discharge parts adjacent the discharge cells and inside the barrier rib, contact parts arranged on a surface of the barrier rib and having round cross-sections, and intermediate parts connecting the discharge parts to the contact parts, terminal electrodes each having one end electrically connected to the contact parts and another end electrically connected to a signal transmitting member, phosphor in the discharge cells and a discharge gas in the discharge cells.Type: ApplicationFiled: March 1, 2007Publication date: September 20, 2007Inventors: Soo-ho Park, Won-Ju Yi, Ho-Young Ahn, Kyoung-Doo Kang, Dong-Young Lee, Seok-Gyun Woo, Jae-Ik Kwon
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Publication number: 20070216304Abstract: A plasma display panel (PDP) having increased exhaustion capacity, includes a first substrate, a second substrate spaced apart from the first substrate and having an exhaustion hole, first and second sealing members, and an electrode sheet with at least one exhaustion path, the electrode sheet disposed between the first substrate and the second substrate and having a discharge area and an undischarge area.Type: ApplicationFiled: March 6, 2007Publication date: September 20, 2007Inventors: Jae-Ik Kwon, Won-Ju Yi, Ho-Young Ahn, Kyoung-Doo Kang, Dong-Young Lee, Soo-Ho Park, Seok-Gyun Woo
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Publication number: 20070216305Abstract: Provided is a plasma display panel that has a reduced noise radiated from around address electrodes by having ground electrodes formed between the address electrodes when using a single scan method.Type: ApplicationFiled: March 5, 2007Publication date: September 20, 2007Inventor: Jae-Young Yeo
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Publication number: 20070216306Abstract: The plasma display panel (PDP) includes a front substrate and a second dielectric layer. At least one of the front substrate and the second dielectric layer is formed of a glass material. The glass material includes a transition metal oxide and a rare earth metal oxide. The transition metal oxide is at least one of oxides of cobalt (Co), nickel (Ni), selenium (Se), iron (Fe), manganese (Mn), chromium (Cr), vanadium (V) and scandium (Sc). The rare earth metal oxide is at least one of oxides of praseodymium (Pr), neodymium (Nd), samarium (Sm), dysprosium (Dy) and holmium (Ho).Type: ApplicationFiled: March 19, 2007Publication date: September 20, 2007Inventor: Chul-Hong Kim
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Publication number: 20070216307Abstract: A plasma display panel having an improved exhaustion capacity.Type: ApplicationFiled: December 22, 2006Publication date: September 20, 2007Inventors: Jae-Ik Kwon, Won-Ju Yi, Ho-Young Ahn, Kyoung-Doo Kang, Dong-Young Lee, Soo-Ho Park, Seok-Gyun Woo
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Publication number: 20070216308Abstract: A lamp electrode adapted to deliver mercury during an assembly process has a supporting electrical lead attached to the proximal end of a metallic shell. The proximal and a distal ends of the metallic shell each lie along a central axis. A container with a vitreous plug in a sealed end contains a substance for delivering mercury upon heating of the container. The sidewall of the container is attached to the electrical lead. The longitudinal axis of the container is skewed relative to the electrical lead to orient the container in a direction to reduce discharge of mercury directly toward the metallic shell. The container is heated to open it and discharge a mercury dose from the sealed end, which is prone to opening upon heating of the container.Type: ApplicationFiled: March 16, 2006Publication date: September 20, 2007Inventor: Ludwig Kiermaier
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Publication number: 20070216309Abstract: A lamp electrode adapted to deliver mercury during an assembly process has a supporting electrical lead attached to the proximal end of a metallic shell. The proximal and a distal ends of the metallic shell each lie along a central axis. A container with a vitreous plug in a sealed end contains a substance for delivering mercury upon heating of the container. The sidewall of the container is attached to the electrical lead. The longitudinal axis of the container is skewed relative to the electrical lead to orient the container in a direction to reduce discharge of mercury directly toward the metallic shell. The container is heated to open it and discharge a mercury dose from the sealed, end, which is prone to opening upon heating of the container.Type: ApplicationFiled: September 14, 2006Publication date: September 20, 2007Inventor: Ludwig P. Kiermaier
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Publication number: 20070216310Abstract: A direct-current high-voltage discharge bulb includes a ceramic arc tube body having a discharge emission chamber at a middle portion in a longitudinal direction thereof, a light-emitting substance which is sealed inside the discharge emission chamber together with a starting rare gas, and an anode and a cathode which are disposed so as to face each other inside the discharge emission chamber. An inside diameter of the ceramic arc tube body where the discharge emission chamber is defined is made to gradually decrease from the anode side to the cathode side.Type: ApplicationFiled: March 14, 2007Publication date: September 20, 2007Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Masaya Shido, Yoichiro Domae
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Publication number: 20070216311Abstract: 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 display panel. The control circuit synchronizes light output by the backlight with a transmittance of the transmissive display panel.Type: ApplicationFiled: March 15, 2006Publication date: September 20, 2007Inventors: Andrei Cernasov, Fernando De La Vega
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Publication number: 20070216312Abstract: 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 in which it is difficult for the electric motor to output an upper limit torque predetermined as a generable maximum torque, a vehicle ECU controls the automatic transmission using a gear shift map configured such that the automatic transmission is downshifted earlier in accordance with a change in the operating state of the vehicle and upshifted later in accordance with a change in the operating state of the vehicle in comparison with a gear shift map that is used when it is not detected that the vehicle is in the predetermined state.Type: ApplicationFiled: March 14, 2007Publication date: September 20, 2007Inventors: Makoto Ogata, Tatsuo Kiuchi
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Publication number: 20070216313Abstract: 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 of illumination desired by an occupant, and the sensor can turn off the lights when the room is vacant. The sensor here disclosed provides sensing functionality to a dimming system, and the sensors can be remotely controlled by other sensors, dimmers and dimmer remotes.Type: ApplicationFiled: December 8, 2006Publication date: September 20, 2007Inventors: Paul Soccoli, Michael Ostrovsky, Alfred J. Lombardi
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Publication number: 20070216314Abstract: 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 two. Each output connection is coupled to the output of a regulator in order to modify the light flux which can be supplied to at least one of the lighting elements. The regulator is designed to determine a difference between set and real values, to verify whether this difference lies within or outside a predeterminable tolerance range, and, in the event that the difference lies outside the tolerance range, to modify accordingly the light flux from the lighting elements which can be connected to the n output connections. At least one limit of the tolerance range depends on the actual light flux value.Type: ApplicationFiled: March 31, 2005Publication date: September 20, 2007Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBHInventor: Wolfgang Langgabner
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Publication number: 20070216315Abstract: 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 transistor arranged in a pixel, and RGB signals are supplied to these circuits. The voltage-current conversion circuits of sets A and B are controlled so as to be switched for every frame or every frame and line.Type: ApplicationFiled: June 15, 2005Publication date: September 20, 2007Applicant: EASTMAN KODAK COMPANYInventor: Kazuyoshi Kawabe
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Publication number: 20070216316Abstract: 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 in parallel with each other so as to divide the side of the substrate into multiple sections; the electric field generating resistor is shaped like a strip and positioned so as to touch a part of each of the line electrodes; and some of the line electrodes have connectors for electric connection.Type: ApplicationFiled: March 12, 2007Publication date: September 20, 2007Inventors: Yukiko HIRANO, Toshiaki Tokita, Koh Fujimura, Yumi Matsuki, Toshimichi Hagiya, Takanobu Osaka, Masanori Kobayashi, Yohei Takano
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Publication number: 20070216317Abstract: 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 circuit respectively. For example, a first voltage source provides a source voltage to the LED that is sufficient to allow operation the LED and a second voltage source provides a source voltage to the integrated circuit that is sufficient to allow operation of the integrated circuit but that is less than a voltage operable to activate the LED. As a result, a low voltage source can be used as a supply for all of the circuitry associated with the integrated circuit, including the current source, without sacrificing the supply voltage used to drive the LED.Type: ApplicationFiled: March 15, 2006Publication date: September 20, 2007Applicant: Cisco Technology, Inc.Inventor: Frederick Schindler
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Publication number: 20070216318Abstract: 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 the control button controls the power delivered to the load. Pulling the control button away from the load control device actuates an air-gap switch to provide an air-gap break in the electrical connection between the source and the load. A linear array of status indicators is provided on a front surface of the control button and displays a visual representation of the amount of power being delivered to the load. A plurality of light pipes are provided inside the control button to conduct the light from a plurality of light-emitting diodes to the front surface of the control button.Type: ApplicationFiled: March 16, 2007Publication date: September 20, 2007Inventors: Gregory Altonen, Samuel Chambers, Eric Mace, Matthew Ochs, Louis Rollo
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Publication number: 20070216319Abstract: 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 this way, it needs multiple or multistage power converters in order to achieve the objective of united power supply. However, excessive circuit elements and multistage power conversion will result in decreasing conversion efficiency. In the present invention, it takes a three-winding coupled inductor as the main component of energy transmission, and utilizes only two power semiconductor switches to accomplish the multi-input function.Type: ApplicationFiled: March 17, 2006Publication date: September 20, 2007Inventors: Rong-Jong Wai, Li-Wei Liu
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Publication number: 20070216320Abstract: 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 (219) to drop, thereby potentially affecting the overall operation of the electronic device (100), an illumination controller (107) distributes actuation times associated with illumination control signals (204,205,206,207) such that each actuation time is unique. A control signal generator (201) produces a control signal (202) having light source actuation information stored therein. The illumination controller (107) then generates a plurality of illumination control signals (204,205,206,207) that are capable of actuating the plurality of light sources (102,103,104,105).Type: ApplicationFiled: March 16, 2006Publication date: September 20, 2007Inventors: Chris Grivas, Erik Cholewin, Andrew Lundholm
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Publication number: 20070216321Abstract: 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 is connected to inputs of the resonant circuit, and an output of the resonant circuit is connected to a lamp. In addition, a feedback driver circuit and a filament current loop are connected to the lamp at its input. An input of the feedback driver circuit is connected to the filament current loop, and its output is connected to the control terminal of the DC/AC inverter circuit. Electrical signals of the filament current loop control the DC/AC inverter circuit drive the resonant circuit through the feedback driver circuit. The filament capacitor is disconnected from the lamp when the filament is broken.Type: ApplicationFiled: January 26, 2005Publication date: September 20, 2007Inventors: Lufan Yu, Wenping Xu
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Publication number: 20070216322Abstract: 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 series with the AC power supply and the at least one LED array that controls current supplied to supplies power to the at least one LED array.Type: ApplicationFiled: December 26, 2006Publication date: September 20, 2007Inventor: Pu-Jin Kim
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Publication number: 20070216323Abstract: When a torque command value from an external ECU is within a predetermined variation width, a control unit generates a signal and outputs the signal to a voltage command calculation unit so that electrostatic energy stored in a capacitor is kept at a predetermined threshold value or larger. Based on the signal, the voltage command calculation unit determines a target voltage of a voltage step-up converter that corresponds to a terminal-to-terminal voltage of the capacitor. In contrast, when the torque command value is out of the predetermined variation width, the control unit determines electric power to be supplied from a DC power supply to an inverter for allowing electric power to be supplied predominantly from the capacitor rather than from the DC power supply and outputs a signal. Based on this signal, the voltage command calculation unit determines the target voltage.Type: ApplicationFiled: May 10, 2005Publication date: September 20, 2007Applicants: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.Inventors: Tetsuhiro Ishikawa, Yukihiro Minezawa
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Publication number: 20070216324Abstract: A demodulation method of a resolver output position signal comprises the steps of: inputting an excitation signal, using a push-pull amplifier circuit to increase fan-out; using a voltage regulator to adjust the amplitude of resolver signals to the same level, for improving resolution; modulating with a subtracter; amplifying the signal with an amplifier circuit for providing signal waveform readable by a resolver to digital converter or a controller.Type: ApplicationFiled: March 17, 2006Publication date: September 20, 2007Applicant: HIWIN MIKROSYSTEM CORP.Inventors: Ming-Shing LIU, Yi-Cheng SU
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Publication number: 20070216325Abstract: Problems with accuracy reading position detection signal peaks and minute phase differences in the detection current make motor drive control easily susceptible to differences in motor characteristics. The rotor position is determined based on whether or not a terminal difference voltage, which is the difference voltage between the motor terminal voltage and the pseudo-neutral-point voltage when the motor phases are selectively energized, exceeds a specific threshold value. The phase energized to start the motor is determined based on this determination and the motor is energized accordingly to start. Instead of switching directly from the search step at the initial rotor position to the back-EMF voltage mode, a search and start mode that creates initial rotor speed sufficient to start the motor is executed before entering the back-EMF voltage mode.Type: ApplicationFiled: March 8, 2007Publication date: September 20, 2007Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Shingo FUKAMIZU, Yasunori YAMAMOTO, Hideaki MORI, Shinichi KUROSHIMA
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Publication number: 20070216326Abstract: A motor speed control system includes a pulse outputting device capable of outputting a pulse each time a motor rotates, a pulse interval determining device capable of determining a pulse interval between the pulses outputted, and a comparative value calculating device capable of obtaining a comparative value as the product of a first value and a second value. The first value can correspond to the pulse interval determined, and the second value can correspond to a set rotational speed of the motor. The system can further include a set value calculating device capable of obtaining a set value as the product of the second value and a third value and a controller capable of controlling a supply of power to the motor such that a difference between the set value and the comparative value decreases.Type: ApplicationFiled: March 12, 2007Publication date: September 20, 2007Applicant: MAKITA CORPORATIONInventors: Masahiko Sako, Mayumi Nagai
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Publication number: 20070216327Abstract: A vehicle drive control system including a motor brake control device. The motor brake control device causes an AC motor to generate a braking force, and selectively executes a first three-phase (3-phase) short-circuiting mode for simultaneously turning on switching elements of an upper arm of an inverter and a second 3-phase short-circuiting mode for simultaneously turning on switching elements of a lower arm of the inverter. The first 3-phase short-circuiting mode and the second 3-phase short-circuiting mode are selectively executed.Type: ApplicationFiled: March 12, 2007Publication date: September 20, 2007Applicant: Nissan Motor Co., Ltd.Inventor: Yoshinori Sugita
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Publication number: 20070216328Abstract: There is provided an inverter capable of reducing a speed in a short period of time without generating an overcurrent even in a case of an alternating current motor which is easy to be saturated magnetically. A frequency of driving a motor is calculated by using a detecting value constituted by passing a direct current bus line voltage through a first filter portion, a voltage command is corrected by using a detecting value passing through a second filter portion, by making a time constant of the second filter portion larger than a time constant of the first filter portion in reducing a speed, the motor is brought into an overexcited state and loss is brought about in the motor.Type: ApplicationFiled: July 1, 2005Publication date: September 20, 2007Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hideaki Iura, Kazuhiko Hiramatsu
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Publication number: 20070216329Abstract: A motor control apparatus that drives and controls a holeless DC motor is disclosed. The motor control apparatus includes a breaking part configured to break the DC holeless motor, a detection part configured to detect whether the DC holeless motor is in a near halt rotation state, and a forced stopping part configured to forcibly stop rotation of the DC holeless motor when the detection part detects that the DC holeless motor is in the near halt rotation state.Type: ApplicationFiled: June 9, 2006Publication date: September 20, 2007Applicant: FUJITSU LIMITEDInventor: Tsutomu Sasaki
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Publication number: 20070216330Abstract: The control device for a closure member of a vehicle according to the present invention comprises: estimated load calculation means (8b) for obtaining an estimated load from a rotation speed, acceleration, and drive voltage of a DC motor (3) for driving a closure member (9); motor torque calculation means (8b) for calculating a motor torque from the rotation speed and drive voltage of the motor; reference torque calculation means (8f) for calculating a reference torque based on a stationary state of the motor torque; and pinching determination means (8c) for determining a pinching of an object based on the estimated load, motor torque and reference torque, wherein the pinching determination means determines that there is no pinching when at least one of the estimated load and the motor torque is below the reference torque even when the estimated load is greater than a prescribed threshold value.Type: ApplicationFiled: March 7, 2007Publication date: September 20, 2007Inventors: Takayuki Kawakura, Narimitsu Kobori, Takao Arai, Kenichi Hirano, Masahiro Fueki
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Publication number: 20070216331Abstract: In an electric rotary excavator (construction machine) 1, when earth pressure acts on a rotary body 4 in an opposite direction to an instructed direction of a lever, a control-system changing means 150 of a rotation control device 100 increases a torque output of an electric motor 5 that drives the rotary body 4. Accordingly, the torque output can properly react against the acting earth pressure, thereby preventing the rotary body from continuing to be rotated in the opposite direction. Therefore, even when the earth pressure becomes large, the work will not be affected. In addition, when the rotary body is rotated on a slope, the rotary body can be prevented from being rotated back greatly due to the weights of the boom and the arm.Type: ApplicationFiled: May 13, 2005Publication date: September 20, 2007Inventors: Jun Morinaga, Tadashi Kawaguchi
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Publication number: 20070216332Abstract: A method for effecting the movement of a handling device with at least one actuating member which can be moved by means of a control device about one or several axes, wherein a) an optically recognizable object and a course of movement is indicated to the control device of the handling device or an image processing device, b) the area of movement and/or working area of the handling device is captured using a camera, c) the image thus captured is evaluated with an image processing device such that the predefined object is recognized and the position and/or state of movement thereof is determined, especially in relation to the handling device, d) the control or image processing device calculates a control command for one or several actuators of the handling device from the position and/or state of movement of the recognized object and the course of movement in relation to the object, e) the control device issues a control command to each actuator to be moved according to said control command, and f) steps b) toType: ApplicationFiled: October 20, 2004Publication date: September 20, 2007Inventors: Georg Lambert, Enis Ersue
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Publication number: 20070216333Abstract: A motion controller accurately identifies system constants, such as inertia, viscous friction coefficient, and constant disturbance, without requiring operation, even in cases where viscous friction and/or constant disturbance are present. An identifier includes a time-differentiator for calculating an acceleration detection value afb by time-differentiating a speed detection value Vfb, a first filter for calculating Fafb by filtering the acceleration detection value afb, a second filter for calculating Fvfb by filtering the speed detection value Vfb, a third filter for calculating Ftref by filtering a torque command value Tref, and a JDC estimator for calculating an inertia identification value J_hat, a viscous friction coefficient identification value D_hat, and a constant disturbance identification value C_hat of a control object by performing time-differentiation and four arithmetic operations based on Ftref, Fvfb and Fafb.Type: ApplicationFiled: May 9, 2007Publication date: September 20, 2007Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventor: Jun Hagihara
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Publication number: 20070216334Abstract: A closed loop control system for controlling an actuator operating on a moveable member, includes a control device controlling operation of the actuator, a sensor responsive to a condition such as loading of the moveable member as it is moved by the actuator and adapted to generate a corresponding feedback control signal SL, and a damping device having a damping effect on the response of the actuator to the feedback control signal, the damping effect being varied in accordance with the movement of the moveable member so as to vary the response of the actuator. The damping effect is increased in the region of stationary states to render the system more stable, and reduced therebetween to make the system more responsive at increased speeds, and thereby more conformal to a required performance profile. The position or velocity of the moveable member can be used to control the damping effect, or a timer can be used to control the damping effect.Type: ApplicationFiled: March 15, 2007Publication date: September 20, 2007Applicant: AIRBUS UK LIMITEDInventor: Martin Edward Jones
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Publication number: 20070216335Abstract: A stepping motor controlling device according to the present invention includes lead angle computing means which computes a lead angle according to the load torque current deviation of the stepping motor, adding means which adds an angle command to the lead angle to determine a winding exciting angle and voltage applying means which applies a voltage according to the winding exciting angle to the stepping motor.Type: ApplicationFiled: March 15, 2007Publication date: September 20, 2007Inventors: Akio Takemori, Yoshifumi Kuwano, Hiroaki Taka, Yoshitaka Iwaji
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Publication number: 20070216336Abstract: An inductive contactless starter can be provided for single-phase AC motor, which can be designed to start a compressor motor with a starting capacitor or a common single-phase AC motor. The starter can comprise a current mutual-inductor composed of two primary coils and a secondary coil, a gate capacitor, a triac, and a Positive Temperature Coefficient (PCT) resistor. By sampling relevant current signals with the current mutual-inductor, the starter can effectively control heat loss of the current sampling system down to milliwatt level (i.e., the starter is a “zero power loss” starter for single-phase AC motor), and thereby can improve energy efficiency greatly. Additionally, the starter can have a simple circuit and fewer components, and is reliable, improving reliability of the motor starting system while delivering motor starting function.Type: ApplicationFiled: April 27, 2005Publication date: September 20, 2007Inventor: Yunwen Zhao
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Publication number: 20070216337Abstract: Motor drives, motor speed controllers, motor speed estimation systems, and methods are presented for controlling motor speed and for estimating motor speed, in which a speed estimate controller provides a rotor speed estimate based on a first error term from a torque-based MRAS component for a first range of motor speeds and based on a second error term from a rotor flux-based MRAS component for a second range of speeds.Type: ApplicationFiled: December 21, 2006Publication date: September 20, 2007Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.Inventors: Haihui Lu, Wei Qian
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Publication number: 20070216338Abstract: An apparatus and method for supplying a polyphase (AC) alternating current motor with driving voltages. A conversion unit is coupled to phases of the polyphase AC motor and includes a plurality of switching devices and includes, in at least one phase, a first switching device between a bus of an AC power supply and an output terminal, a second switching device between a bus of a direct current (DC) power supply and the output terminal, and a third switching device between a common bus for the AC power supply and the DC power supply and the output terminal. Driving voltages for the polyphase AC motor are generated by selecting a voltage from among voltages having potential values corresponding to the AC power supply and the DC power supply, and the selected voltage is used to operate a switch of the plurality of switching devices.Type: ApplicationFiled: March 6, 2007Publication date: September 20, 2007Applicant: Nissan Motor Co., Ltd.Inventors: Kantaro Yoshimoto, Yasuhiko Kitajima, Kengo Maikawa
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Publication number: 20070216339Abstract: An electric power converter, electric power conversion system and method that, without using a DC-DC converter, uses and allots the electric power of plural power sources while reducing the volume and losses. At least one phase of the motor is connected to plural power sources and generates and synthesizes pulses from output voltages of plural power sources so as to drive the multi-phase AC motor. A different phase of the motor is connected to one DC power source and generates pulses from the output voltage of the power source so as to generate a driving voltage for the multi-phase AC motor. This arrangement allows use/allotment of the power of plural power sources with a reduced number of semiconductor components.Type: ApplicationFiled: March 15, 2007Publication date: September 20, 2007Applicant: Nissan Motor Co., Ltd.Inventors: Kantaro Yoshimoto, Yasuhiko Kitajima, Kengo Maikawa