Patents Issued in January 23, 2014
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Publication number: 20140021847Abstract: An appliance is provided. The appliance includes a cabinet that defines a chamber. A container is received within the chamber. A biasing member is configured for urging the container upwardly along a vertical direction. By urging the container upwardly, the biasing member can lift the container and facilitate access to the container.Type: ApplicationFiled: January 15, 2013Publication date: January 23, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Ross Benson Wehner, Ronald Scott Tarr, Raymond James VanAssche, Joseph Emil Gormley
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Publication number: 20140021848Abstract: An LED based light for replacing an incandescent bulb comprises a base having a first end and a second end. A connector is fixed to the first end of the base and adapted to physically connect to an incandescent light fixture. A light structure extends from the second end of the base and has an inner surface defining a cavity and an opposing exterior outer surface, and at least one LED is arranged outward from the inner surface. A heat dissipating structure for the at least one LED extends into the cavity.Type: ApplicationFiled: September 20, 2013Publication date: January 23, 2014Applicant: iLumisys, Inc.Inventors: David L. Simon, John Ivey
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Publication number: 20140021849Abstract: An LED light bulb includes a bulb housing, at least two heat sinks, an LED chip connected on each of the heat sinks, a circuit board driving the LED chip to work, a bulb base, and a bulb cap. The inner sides of the heat sinks encircle into an air cavity. Each heat sink has a first opening. The bulb base has a second opening. The first opening is exposed in the second opening to communicate with the air cavity. The top end of the bulb housing has a third opening to communicate with the air cavity. The air cavity forms up-and-down circulating convection air via the three openings.Type: ApplicationFiled: September 16, 2011Publication date: January 23, 2014Applicant: Xiamen Yankon Energetic Lighting Co., Ltd.Inventors: Lufan Yu, Zhongcheng Wu
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Publication number: 20140021850Abstract: The present invention utilizes the outer and/or inner surface of the cup-shaped heat dissipater (100) having heat conductive rib therein served for accommodating the electric luminous body (200), and with the heat conductive rib structure (310) connecting with the inner periphery and the bottom of the cup-shaped inner recessed structure of the heat dissipater (100), and the heat source zone installed with the electric luminous body (200), the heat of the electric luminous body (200) can be assisted to be transmitted via the heat conductive rib structure (310) to the surface of heat dissipater (100), so as to be dissipated to the surrounding.Type: ApplicationFiled: August 8, 2013Publication date: January 23, 2014Inventor: Tai-Her Yang
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Publication number: 20140021851Abstract: As a substrate for an LED module and a method for manufacturing the same, they teach a substrate for an LED module and a method for manufacturing the same which including a base substrate, an insulating layer formed on a remaining region except a chip mounting region A in the base substrate, an electrode layer formed on the insulating layer, an oxide layer formed on the chip mounting region A of the base substrate and a high reflection layer formed on a top surface of the oxide layer.Type: ApplicationFiled: July 17, 2013Publication date: January 23, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventor: Cheol Ho HEO
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Publication number: 20140021852Abstract: A direct spark igniter for a fuel-fired heating appliance is provided with enhanced ignition performance in environments having substantial levels of both moisture and pollution. Such enhanced ignition performance is representatively achieved by the combination of (1) forming external annular ribs on the ceramic body portion of the igniter; (2) extending a top end of the igniter electrode rod into the body portion; (3) bending the igniter electrode and ground rods and angling them toward one another; and (4) knurling external side surfaces on lower end portions of the igniter electrode and ground rods.Type: ApplicationFiled: January 25, 2013Publication date: January 23, 2014Applicant: Rheem Manufacturing CompanyInventors: Raheel A. Chaudhry, Troy Trant, Timothy D. Scott, Rodney K. Pugh
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Publication number: 20140021853Abstract: A spark plug includes a center electrode having an end portion, and an earth electrode having an opposing portion opposed to the end portion via a gap. The end portion has an end-projecting portion. The opposing portion has an opposing-projecting portion opposed to the end-projecting portion. The end-projecting portion and the opposing-projecting portion have non-projection direction opposing surfaces which are parallel to and opposed to each other with a minimum distance and in a direction other than a projection direction. A first opposing area of a portion which includes the non-projection direction opposing surfaces and where the end-projecting portion and the opposing-projecting portion are opposed to each other with the minimum distance is larger than a second opposing area obtained when a plane of the end-projecting portion and a plane of the opposing-projecting portion, which are orthogonal to the projection direction, are opposed to each other in the projection direction.Type: ApplicationFiled: July 17, 2013Publication date: January 23, 2014Inventors: Toshikazu SHIMIZU, Kouji YAMANAKA
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Publication number: 20140021854Abstract: A plasma torch includes an electrically conductive cylindrical vessel, a hollow electrode, a first insulator, a concentric reducer, a tangential inlet, an electrode housing and a first electrode. The hollow electrode is aligned with a longitudinal axis of the electrically conductive cylindrical vessel and extends into the electrically conductive cylindrical vessel. The first insulator seals the electrically conductive cylindrical vessel around the hollow electrode. A non-conductive granular material is disposed between the electrically conductive cylindrical vessel and the hollow electrode. The concentric reducer is disposed within the electrically conductive cylindrical vessel and extends from the electrically conductive cylindrical vessel to the hollow electrode. The electrode housing is connected to the electrically conductive cylindrical vessel.Type: ApplicationFiled: September 25, 2013Publication date: January 23, 2014Applicant: Foret Plasma Labs, LLCInventor: Todd Foret
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Publication number: 20140021855Abstract: A phosphor and a light emitting device including the phosphor may be provided that emits light having a peak wavelength between a green wavelength band and a yellow wavelength band, has a crystal structure of which the chemical formula is MSi2N2O2, M=CaxSryEuz (x+y+z=1), and has a triclinic system crystal structure in which, when molar ratios of Ca, Sr and Eu are x, y and z respectively, x+y+z=1 and when the x, y and z are represented by a triangular projection, the x, y and z are distributed on the lines and at the inside of an area formed by connecting five points of (0.45, 0.55, 0), (0.75, 0.25, 0), (0.75, 0, 0.25), (0.5, 0, 0.5) and (0.45, 0.05, 0.5) by a solid line on a triangular diagram.Type: ApplicationFiled: June 19, 2013Publication date: January 23, 2014Inventors: Shunichi Kubota, Satoshi Tanaka
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Publication number: 20140021856Abstract: In one aspect, a flexible organic light-emitting display apparatus including a substrate; a display device formed on a first surface of the substrate; a thin film encapsulation layer covering the display device; and a protection film generally surrounding the substrate, the display device, and the thin film encapsulation layer, and a method of manufacturing the flexible organic light-emitting display apparatus is provided.Type: ApplicationFiled: November 28, 2012Publication date: January 23, 2014Applicant: Samsung Display Co., Ltd.Inventors: Woo-Suk Jung, Soon-Ryong Park, Hye-Jung Park, Seok-Gi Baek, Tae-Eun Kim
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Publication number: 20140021857Abstract: A luminescent converter 200, 220, 240, 260, a phosphor-enhanced light source and a luminaire are provided. The luminescent converter 200 comprises a first organic luminescent material 202, a second organic luminescent material 208 and a third inorganic luminescent material 206. The first organic luminescent material 202, the second organic luminescent material 208 and the inorganic luminescent material 206 absorb a portion of light emitted by the light source and/or absorbs a portion of light emitted by at least one of the other luminescent materials. The first organic luminescent material 202 converts at least a part of the absorbed light into light of a first color distribution. The second organic luminescent material 208 converts at least a part of the absorbed light into light of a second color distribution.Type: ApplicationFiled: April 3, 2012Publication date: January 23, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Ties Van Bommel, Rifat Ata Mustafa Hikmet, Jan Cornelis Kriege
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Publication number: 20140021858Abstract: An electroluminescent device and a method of making an electroluminescent device that includes one or more optical spacers are disclosed. In one embodiment, the method includes forming an electroluminescent element on a substrate. The method further includes selectively thermally transferring an optical spacer.Type: ApplicationFiled: September 23, 2013Publication date: January 23, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Martin B. Wolk, Robert L. Brott, Thomas R. Hoffend
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Publication number: 20140021859Abstract: A magnetron has an anode body (1) and including a ceramic sleeve (7). In higher power generators, stray radiation is emitted from this sleeve in addition to the main power launched from the antenna into the waveguide (2), and RF absorbing material is provided. Such absorbers, however, tend to be frequency-selective, and can overheat. According to the invention, a non-metallic jacket (13) containing a dielectric liquid such as water surrounds the sleeve. This provides absorption over a broad band of frequencies, and it is easy to make the jacket have a sufficiently high thermal capacity, for example, by arranging a flow of liquid through it.Type: ApplicationFiled: January 18, 2012Publication date: January 23, 2014Applicant: E2V Technologies (UK) LimitedInventor: Victor Leslie Watson
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Publication number: 20140021860Abstract: A driver circuit of lighting sources for powering a plurality of lighting sources, comprising switching means (20) which can be operated to modify the path of the overall power supply electric current crossing said lighting sources. Said switching means can be operated to switch the path of the overall power supply electric current between at least one first path, corresponding to a first circuit configuration of the interconnections between the lighting sources, and at least one second path, corresponding to a second circuit configuration of the interconnections between the lighting sources.Type: ApplicationFiled: February 1, 2013Publication date: January 23, 2014Applicant: AUTOMOTIVE LIGHTING ITALIA S.P.A. A SOCIO UNICOInventor: AUTOMOTIVE LIGHTING ITALIA S.P.A. A SOCIO UNICO
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Publication number: 20140021861Abstract: A plasma reactor has an overhead multiple coil inductive plasma source with symmetric and radial RF feeds and cylindrical RF shielding around the symmetric and radial RF feeds. The radial RF feeds are symmetrically fed to the plasma source.Type: ApplicationFiled: August 14, 2013Publication date: January 23, 2014Applicant: APPLIED MATERIALS, INC.Inventors: James D. Carducci, Kenneth S. Collins, Richard Fovell, Jason A. Kenney, Kartik Ramaswamy, Shahid Rauf
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Publication number: 20140021862Abstract: Disclosed is a lighting apparatus. The lighting apparatus includes: a control module supplying power; a heat sink receiving the control module; a light source mounted on the heat sink and connected to the control module; and a communication module including a connection terminal inserted into the heat sink and connected to the control module, and an antenna device protruding from the heat sink. Since the lighting apparatus can be controlled in a wireless scheme, a user of the lighting apparatus can easily control the lighting apparatus.Type: ApplicationFiled: July 23, 2013Publication date: January 23, 2014Applicant: LG INNOTEK CO., LTD.Inventor: Won Suk CHUNG
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Publication number: 20140021863Abstract: Systems and methods (1400) for packaging an electronic component (108, 110) in an electronic device (100). The methods involve: circumscribing the electronic component with a multi-purpose component (120, 122) at least partially formed of a transparent material and a compressible material. A water tight seal is created by the multi-purpose component between the electronic component and a housing (102) of the electronic device. The multi-purpose component provides an indicator for indicating a location of the electronic component on the electronic device to a user thereof in dark or semi-dark environments. The indicator is provided by emitting light from the multi-purpose component. The multi-purpose component also communicates status information of the electronic device to the user by emitting light therefrom. Various types of status information can be communicated to the user by emitting different colored light from the multi-purpose component, respectively.Type: ApplicationFiled: July 19, 2012Publication date: January 23, 2014Applicant: HARRIS CORPORATIONInventors: Nicole Bertrand, David Cipolla, Jose R. Duran, Jason Scott, Richard S. Currier
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Publication number: 20140021864Abstract: A functional control adapter for light generating devices includes a female portion, a male portion, and a control module. The female portion has an inlet body. The inlet body has a housing member having a first contact module. The male portion has an outlet body connected to the inlet body. A second contact module is disposed on the exterior of the outlet body. The control module is located at the inlet body and connected electrically to the first contact module of the female portion and the second contact module of the male portion. The adapter and the light source are joined separately, thus the lighting device can be dismounted or installed with convenience, and individual parts can be replaced as needed for reducing repair cost.Type: ApplicationFiled: September 19, 2013Publication date: January 23, 2014Inventors: Wen-Yung Liao, Wen-Fu Liao, Sheng-Hsin Liao
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Publication number: 20140021865Abstract: A light source apparatus configured to emit first light and second light includes a wavelength reference device, a splitter, a first detector, a second detector, and a control unit. The control unit includes a correction unit configured to reduce from a detection signal detected by the first detector a portion included in the detected signal and related to an intensity of the second light incident on the first detector from the splitter, and configured to reduce from a detection signal detected by the second detector a portion included in the detected signal and related to an intensity of the first light incident on the second detector from the splitter. The control unit controls a wavelength of the first light and a wavelength of the second light based on signals from the correction unit.Type: ApplicationFiled: July 15, 2013Publication date: January 23, 2014Inventor: Taro Tezuka
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Publication number: 20140021866Abstract: A system and a method for controlling light distribution in a space including multiple installed light sources (111, 112, 221-223) and an external light source (103, 203).Type: ApplicationFiled: April 4, 2012Publication date: January 23, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventor: Dagnachew Birru
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Publication number: 20140021867Abstract: Feedback is received from a plurality of devices. External data is also received. Statistical patterns of the plurality of devices are determined based on the feedback. A policy is determined based on the statistical patterns, the feedback, and the external data. The policy may include a set of rules dictating the operation of each of the plurality of devices and reducing energy consumption at the plurality of devices. Control data based on the policy is transmitted to the plurality of devices. The control data may be operative to transform the operation of the plurality of devices according to the set of rules.Type: ApplicationFiled: September 23, 2013Publication date: January 23, 2014Applicant: Cooper Technologies CompanyInventors: Ashok Deepak Shah, David Diehl Roberts
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Publication number: 20140021868Abstract: A system and method that adjusts a screen brightness of a display, considering an ambient illumination state, are provided. The method includes receiving a signal, corresponding to an event related to an illumination state alteration, from a sensor, confirming the event, and adjusting, if the event is confirmed, a screen brightness of a display unit in accordance with the event.Type: ApplicationFiled: July 18, 2013Publication date: January 23, 2014Inventor: Youngho CHO
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Publication number: 20140021869Abstract: A computing device is disclosed. The computing device includes a light source configured to output light. The computing device also includes a light sensor configured to measure the level of light surrounding the computing device. The computing device further includes a control mechanism operatively coupled to the light source and light sensor and configured to adjust the level of output light based on the measured level of light surrounding the computing device.Type: ApplicationFiled: July 19, 2013Publication date: January 23, 2014Applicant: Apple Inc.Inventors: Duncan Kerr, Bas Ording, Greg Christie, Imran Chaudhri, Marcel van Os, Nick King
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Publication number: 20140021870Abstract: There is provided an organic light emitting display capable of displaying an image of uniform brightness. The organic light emitting display includes a panel including pixels, the pixels including driving transistors, the gate electrodes of the driving transistors being configured to be initialized by voltages supplied from an initializing power supply, and an initializing power supply generator for supplying the initializing power supply. The initializing power supply generator is configured to set a voltage value of the initializing power supply to vary to correspond to a position of the panel.Type: ApplicationFiled: November 2, 2012Publication date: January 23, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Sung-Bo AN, Chang-Wook KANG, Dong-Hwan LEE
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Publication number: 20140021871Abstract: An interface circuit is disclosed for operating a light source from an electronic fluorescent driver. In one example, the interface circuit comprises input terminals for connection to lamp connection terminals of the electronic fluorescent lamp driver, a first string interconnecting a first pair of input terminals, a second string interconnecting a second pair of input terminals, a third string interconnecting a first terminal of the first string and a second terminal of the second string and comprising a rectifier, output terminals of said rectifier being coupled during operation to the light source. When a light source is operated making use of the interface circuit, a proper emulation of a fluorescent lamp is obtained.Type: ApplicationFiled: March 27, 2012Publication date: January 23, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Christoph Loef, Haimin Tao
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Publication number: 20140021872Abstract: A circuit capable of receiving, in series with at least one light-emitting diode, a rectified A.C. voltage, comprising: a first gate turn-off thyristor connected to first and second terminals of the circuit; and a control circuit for turning off the first thyristor when the voltage between the first and second terminals exceeds a threshold.Type: ApplicationFiled: September 20, 2013Publication date: January 23, 2014Applicant: STMicroelectronics (Tours) SASInventors: Laurent Gonthier, Antoine Passal
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Publication number: 20140021873Abstract: A power transformation apparatus between DC light element and ballast includes a first fluorescent emulation module, a second fluorescent emulation module and a rectifier module; wherein the first fluorescent emulation module includes two input current terminals for electrically connecting to first set of AC output terminals of the ballast, the second fluorescent emulation module also includes two input current terminals for electrically connecting to second set of AC output terminals of the ballast; two input terminals of the rectifier module are electrically connected respectively to any output terminal of first set of AC output terminals and second set of AC output terminals. The rectifier module outputs a rectified DC to supply to the DC light element as a power source.Type: ApplicationFiled: January 7, 2013Publication date: January 23, 2014Applicant: GEOMETEK APPLICATION ENGINEERING CO., LTD.Inventor: Yung-Cheng Liu
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Publication number: 20140021874Abstract: Disclosed are LED driver circuits, and methods of driving LED loads. In one embodiment, an LED driver can include: (i) an SCR coupled to an AC power supply, and configured to generate a DC voltage through a first rectifier circuit; (ii) a first stage conversion circuit having an isolated topology with power factor correction, where the first stage conversion circuit is configured to convert the DC voltage to a first output voltage; (iii) where the first stage conversion circuit includes a transformer having a primary side coupled to the DC voltage, and a secondary side coupled to the first output voltage through a second rectifier circuit; and (iv) a second stage conversion circuit having a non-isolated topology, where the second stage conversion circuit is configured to convert the first output voltage to an output current configured to drive an LED load based on a conducting angle of the SCR.Type: ApplicationFiled: July 8, 2013Publication date: January 23, 2014Inventor: Wei Chen
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Publication number: 20140021875Abstract: An auxiliary power supply circuit of a two wire dimmer, comprising: an auxiliary source capacitor (20) and a cutoff switch (30) constituting a series branch, a chopper switch (10) parallel-connected to the series branch, and a control device (40) connected to the chopper switch (10) and to the cutoff switch (30). The control device (40) measures an auxiliary source voltage and receives a chopper voltage control signal (Vg), and outputs signals (V1 and V2), on the basis of the result of a comparison between the auxiliary source voltage and a preset voltage and of the state of the chopper voltage control signal (Vg), to control the on and off of the chopper switch (10) and of the cutoff switch (30) for controlling the charging of the auxiliary source capacitor (20). The auxiliary power supply circuit has low losses, high efficiency, and is not limited by minimum chopper angle, and has low electromagnetic interference.Type: ApplicationFiled: August 29, 2011Publication date: January 23, 2014Applicant: INVENTRONICS (HANGZHOU), INC.Inventors: Delai Jiang, Jianhua Zou, Guichao Hua
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Publication number: 20140021876Abstract: The present invention includes a first DC converter converting AC voltage, into DC voltage while correcting a power factor, and a second DC converter electrically isolating the first DC converter from an LED group load, and converting the DC voltage, into a predetermined DC voltage and supply the resultant voltage to the LED group load. The second DC converter includes a current detection circuit disposed on the secondary side, and detecting current flowing into the LED group load, an error amplifier amplifying an error between a detected current value detected and a reference current value, a signal transmission isolation element transmitting a control signal based on an output signal from the error amplifier, to the primary side, and a switching element transferring power to the secondary side through the transformer by being turned on/off according to the control signal.Type: ApplicationFiled: September 23, 2013Publication date: January 23, 2014Applicant: Sanken Electric Co., Ltd.Inventor: Kengo Kimura
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Publication number: 20140021877Abstract: A light emitting chip operating under a DC power supply is provided. The light emitting chip includes a substrate and a plurality of light emitting elements. The light emitting elements are arranged on the substrate, and have the same or different area sizes. The light emitting elements are driven by a single driving voltage or sectionally driven by a plurality of driving voltages.Type: ApplicationFiled: July 15, 2013Publication date: January 23, 2014Inventors: Yu-Sheng Chen, Cheng-Chun Liao, Chia-Yen Lee, Yu-Min Lin
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Publication number: 20140021878Abstract: A buck converter for operating at least one LED. In this case, the buck inductor comprises a first buck inductor and a second buck inductor, wherein a charge pump is coupled between the coupling point of the two buck inductors and a supply connection of a control apparatus which is used for actuating a buck switch.Type: ApplicationFiled: July 23, 2013Publication date: January 23, 2014Applicant: OSRAM GmbHInventor: Bernd RUDOLPH
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Publication number: 20140021879Abstract: Disclosed are dimmable LED driver circuits and methods. A dimmable LED driver can include: an SCR, an electronic transformer, and a rectifier bridge to convert an AC voltage to a DC voltage signal; a power stage circuit that receives the DC voltage signal, and outputs a constant current to drive an LED load, where the power stage circuit includes first and second power stage circuits, the first power stage circuit receiving the DC voltage signal, and generating a first output voltage to the second power stage; and an input current control circuit that receives an input current of the first power stage circuit and the first output voltage, and generates a first control signal to control the input current as a square wave signal during an on time of the SCR, and the input current is substantially zero during an off time of the SCR.Type: ApplicationFiled: June 12, 2013Publication date: January 23, 2014Inventors: Feng Yu, Xiaodong Huang
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Publication number: 20140021880Abstract: An electric lighting driver circuit for driving an illuminating unit to emit light includes a flyback converting unit for converting a DC input voltage to a low ripple DC voltage, and a half-bridge converting unit electrically connected to the flyback converting unit, for converting the low ripple DC voltage to a low frequency, rectangular wave output voltage to drive the illuminating unit to emit light. The flyback converting unit includes a dual-output winding transformer connected to the half-bridge converting unit. The dual-output winding transformer includes a first winding at a primary side of the dual-output winding transformer and a second winding and a third winding at a secondary side of the dual-output winding transformer. The third winding converts leakage inductance attributed to the first winding and the second winding to electrical energy that is provided to the half-bridge converting unit.Type: ApplicationFiled: July 20, 2012Publication date: January 23, 2014Inventors: Chun-An Cheng, Chen-Wei Ku
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Publication number: 20140021881Abstract: A marking device includes a solid-state light-emitting element as a light source. A plurality of the marking devices are arranged spaced apart from one another, wherein the solid-state light-emitting element is subjected to PWM control and lit at a frequency of 100 Hz to 200 Hz or exceeding 2,000 Hz.Type: ApplicationFiled: March 8, 2013Publication date: January 23, 2014Applicant: Toshiba Lighting & Technology CorporationInventor: Yasufumi ISHIDA
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Publication number: 20140021882Abstract: A power supply apparatus includes a first constant-power power supply that switches and supplies powers of j types (where j is a natural number of two or more), a second constant-power power supply that switches and supplies powers of k types (where k is a natural number of two or more), and a switching controller that selects and switches on the first and second variable-power power supplies, excluding power transition periods thereof, to supply a load with a constant power.Type: ApplicationFiled: July 16, 2013Publication date: January 23, 2014Inventor: Takashi SUENAGA
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Publication number: 20140021883Abstract: A light emitting diode device emitting at a wavelength of 390-415 nm has a bulk gallium and nitrogen containing substrate with an active region. The device has a current density of greater than about 175 Amps/cm2 and an external quantum efficiency with a roll off of less than about 5% absolute efficiency.Type: ApplicationFiled: June 28, 2013Publication date: January 23, 2014Inventors: Thomas M. Katona, James W. Raring, Mark P. D'Evelyn, Michael R. Krames
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Publication number: 20140021884Abstract: The present disclosure provides a method for powering a light fixture to provide a constant light output. In one embodiment, the method includes providing a current to one or more light emitting diodes (LEDs), monitoring an external ambient temperature and increasing the current to the one or more LEDs as the external ambient temperature rises to maintain the constant light output.Type: ApplicationFiled: July 11, 2013Publication date: January 23, 2014Inventors: RICHARD H. FETTERLY, KEVIN A. HEBBORN, ANTHONY VERDES, KENNETH JENKINS, VIRGINIA MERRIAM
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Publication number: 20140021885Abstract: An integrated LED controller drives and reads a passive dimmer and controls a power circuit for the LED. The integrated LED controller detects changes in the position of the passive dimmer and causes the power circuit to brighten or dim the LED accordingly. These functions are normally performed by multiple discrete components. However, the integrated LED controller is implemented as a single integrated circuit, thus reducing the size and cost of the LED dimming system. The integrated LED controller can also include a unified timing controller that coordinates the timing of multiple functions within the controller in a manner that reduces the noise sensitivity of the controller.Type: ApplicationFiled: July 10, 2013Publication date: January 23, 2014Inventors: Liang Yan, Clarita C. Poon, Yimin Chen, Mark Eason, Chuanyang Wang
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Publication number: 20140021886Abstract: When a motor drive control device is integrated in a semiconductor integrated circuit having a small chip area, calibration for improving the accuracy of detection of a counter electromotive voltage, which is for detecting the speed of a motor, is enabled. A first multiplier performs multiplication between a drive current detection signal and first gain information in a first register. A subtractor performs subtraction between a drive voltage command signal and a first multiplication result in the first multiplier. A second multiplier performs multiplication between a subtraction result in the subtractor and second gain information in a second register to generate counter electromotive voltage information as information on a second multiplication result. The drive voltage command signal in a control unit is set to a predetermined value to generate a condition which maintains the speed of the motor and a counter electromotive voltage at substantially zero.Type: ApplicationFiled: June 24, 2013Publication date: January 23, 2014Inventors: Minoru Kurosawa, Yuki Matsuya
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Publication number: 20140021887Abstract: Apparatus and method for reducing current drain and current spike impact on a dispenser electric motor by employing a series of supercapacitors in a power supply current to provide at least a portion of the energy requirement of the dispenser electric motor upon initial energization.Type: ApplicationFiled: November 19, 2012Publication date: January 23, 2014Applicant: DISPENSING DYNAMICS INTERNATIONALInventor: DISPENSING DYNAMICS INTERNATIONAL
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Publication number: 20140021888Abstract: A motor driving device includes a rectifier, an inverter connected to a DC link on a DC side of the rectifier, a power failure detecting unit for detecting a power failure on the alternating side of the rectifier, an electric storage device connected to the DC link, a charging unit that possesses a voltage boosting function of charging the electric storage device by direct current power at the DC link, a discharging unit that causes direct current power stored in the electric storage device to be discharged to the DC link, and a control unit that causes the charging unit to operate when the power failure detecting unit does not detect a power failure, or before start of motor drive, and causes the discharging unit and the inverter to operate when the power failure detecting unit detects a power failure.Type: ApplicationFiled: July 16, 2013Publication date: January 23, 2014Inventors: Masakazu NIWA, Koujirou SAKAI
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Publication number: 20140021889Abstract: A control system for compensating a hysteresis band of a switched reluctance (SR) machine having a rotor and a stator is provided. The control system may include a converter circuit and a controller. The converter circuit may be operatively coupled to the stator and include a plurality of switches in selective communication with each phase of the stator. The controller may be in communication with each of the stator and the converter circuit, and configured to monitor at least one phase current of the SR machine relative to a current threshold of the hysteresis band, determine an adjustment value based on a difference between the phase current and the current threshold if the phase current exceeds the current threshold, and compensate the current threshold by the adjustment value.Type: ApplicationFiled: July 23, 2012Publication date: January 23, 2014Applicant: CATERPILLAR, INC.Inventors: Jesse Gerdes, Jackson Wai, Ahmed Khalil
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Publication number: 20140021890Abstract: A comminuting machine includes a frame, a comminuting rotor coupled to the frame, and a rotary drive coupled to the rotor. The rotary drive including a controller, a multi-phase motor connected to the controller, a set of contactors disposed between the controller and the multi-phase motor for selectively providing driving motive force to the multi-phase motor, and at least one rheostat disposed between the controller and the multi-phase motor, in parallel with the first set of contactors, for selectively providing a stopping resistance to the multi-phase motor to effect frictionless braking of the comminuting rotor, wherein the controller is configured to operate the set of contactors and the at least one rheostat to single phase lines of the multi-phase motor for providing the stopping resistance.Type: ApplicationFiled: April 16, 2013Publication date: January 23, 2014Applicant: Harris Waste Management Group, Inc.Inventor: Javier Herrera
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Publication number: 20140021891Abstract: A motor includes a rotor, a sensor unit, an offset unit, a rectification unit and a modulating unit. The sensor unit outputs a first signal in accordance with a magnetic field variation of the rotor. The offset unit is coupled to the sensor unit, and outputs a second signal in accordance with the first signal. The rectification unit is coupled to the offset unit, and outputs a third signal in accordance with the second signal. The modulating unit is coupled to the rectification unit, and outputs a control signal in accordance with a result by comparing the third signal with a periodic signal. The modulating unit controls a reverse rotation of the rotor smoothly in accordance with the control signal. A control method of the motor is also disclosed.Type: ApplicationFiled: December 7, 2012Publication date: January 23, 2014Applicant: DELTA ELECTRONICS, INC.Inventors: Yu-Liang LIN, Kun-Fu CHUANG, Cheng-Chieh LIU
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Publication number: 20140021892Abstract: A semiconductor device that controls a motor driving device. The semiconductor device includes: a position detection section that detects changes in a turning position of a rotor provided at a motor and outputs detection signals corresponding to the changing turning position; a first switching section that, in accordance with the detection signals, outputs ground switching signals, which switch which end portion of a coil is connected to a ground side, to a first switching circuit; and a second switching section that, in accordance with the detection signals, outputs connection switching signals, which switch which end portion of the coil is connected to a driving power supply side, to a third switching circuit that controls the switching of connections between the end portions of the coil and the driving power supply side by a second switching circuit.Type: ApplicationFiled: July 19, 2013Publication date: January 23, 2014Inventor: TAKASHI YAMASHITA
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Publication number: 20140021893Abstract: In a driver, a clamping module executes a clamping task that clamps an on-off control terminal voltage to be equal to or lower than a clamp voltage for a predetermined time during charging of the on-off control terminal of the switching element. The clamp voltage is lower than an upper limit of the voltage at the on-off control terminal of the switching element. A measuring module measures a parameter value correlated with a sense current correlated with a current flowing between input and output terminals of the switching element. A limiting module discharges the on-off control terminal to limit flow of the current between the input and output terminals if the value of the parameter exceeds a threshold. A setting module variably sets a length of the predetermined time as a function of the parameter value during charging of the switching element's on-off control terminal.Type: ApplicationFiled: July 22, 2013Publication date: January 23, 2014Applicant: DENSO CORPORATIONInventors: Takeyasu KOMATSU, Tsuneo MAEBARA
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Publication number: 20140021894Abstract: An electric motor system includes a motor configured to produce a torque signal in response to a torque command. The torque signal has a fundamental frequency component, a first ripple harmonic and a second ripple harmonic. The first ripple harmonic is an integer multiple of the fundamental frequency component. The second ripple harmonic is an integer multiple of the first ripple harmonic. A system and method is provided to generate a ripple reduction signal in response to the torque command that simultaneously cancels the first and the second ripple harmonic in the torque signal. The second ripple harmonic may be canceled with the first ripple harmonic by being projected onto the first ripple harmonic through a transformation matrix.Type: ApplicationFiled: July 19, 2012Publication date: January 23, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Dwarakanath V. Simili
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Publication number: 20140021895Abstract: The driver circuit includes a first controlling circuit that outputs, to a gate of the auxiliary pMOS transistor, a first controlling signal that rises in synchronization with a rising of the first pulse signal and falls after a delay from a falling of the first pulse signal. The driver circuit includes a second controlling circuit that outputs, to a gate of the auxiliary nMOS transistor, a second controlling signal that rises in synchronization with a rising of the second pulse signal and falls after a delay from a falling of the second pulse signal.Type: ApplicationFiled: February 4, 2013Publication date: January 23, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Toshiaki OHGUSHI
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Publication number: 20140021896Abstract: A drive circuit for delivering high-level power to a load, and method of stopping a high power load from operating, are disclosed. The drive circuit includes a high power circuit capable of being coupled to the load and delivering the high level power thereto, and a to power circuit that controls the high power circuit. The low power circuit includes a first circuit portion that provides at least one control signal that is at least indirectly communicated to the high power circuit and that controls the delivering of the high level power by the high power circuit, and a second circuit portions coupled to the first circuit portion. The second circuit portion is capable of disabling the first circuit portion so that the at least one control signal avoids taking on values that would result in the high power circuit delivering the high level power to the load.Type: ApplicationFiled: September 20, 2013Publication date: January 23, 2014Inventors: David G. Fullington, Raymond G. Sladky, Daniel L. Stewart, Michael L. Gasperi, Scott P. Miles