Patents Issued in February 14, 2013
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Publication number: 20130038223Abstract: An image display device includes: excitation light source (5), fluorescent screen (6) provided with a plurality of phosphor regions (61, 62, 63) that are arranged periodically in the in-plane direction, the regions between phosphor regions being retroreflective regions (64) that bend incident light in the direction opposite the direction of incidence of the light; scanning means (4) that scans fluorescent screen (6) with a light beam from excitation light source (5); optical detection means (2, 3) that detects retroreflective light (7) that is reflected by retroreflective regions (64); and control means (1) that causes scanning by scanning means (4), detects boundaries between each phosphor region (61, 62, 63) and retroreflective region (64) on fluorescent screen (6) based on output of optical detection means (2, 3), and controls the light emission timing of excitation light source (5) based on the detected boundaries.Type: ApplicationFiled: April 18, 2011Publication date: February 14, 2013Applicant: NEC CORPORATIONInventor: Kazuhiko Aoki
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Publication number: 20130038224Abstract: The present invention provides apparatus and methods for controlling the illumination throughout an area where even and constant lighting is not required. The invention includes one or more light sources, such as luminaires, the status of which is controlled by a controller responsive to a sensor for detecting a parameter of interest. Preferably the sensor detects motion of a subject moving through the area of controlled illumination. Each independent controller may receive and transmit signals indicative of the status of one or more nearby light source for determining and controlling the lighting status of the light source with which it is in controlling communication. The determining by the controller is preferably carried out by a programmed microprocessor. The communication between controllers may be wireless. The signals communicated among controllers may be hierarchical for determining whether a response is required and what the response might be.Type: ApplicationFiled: April 21, 2011Publication date: February 14, 2013Applicant: ORGANIC RESPONSE PTY LTDInventors: Daniel John Bishop, Geoffrey Kenneth Andrews
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Publication number: 20130038225Abstract: A motion activated toilet bowl lighting device includes a body member having inner, outer, top, and bottom walls that define an interior area. The inner wall includes an inwardly annular configuration complementary to a toilet bowl rim outer surface. The lighting device includes an attachment arm displaced from the inner wall. A bridge connects the top wall to the attachment arm such that the inner wall, attachment arm, and bridge sandwich the toilet rim. A motion detector is positioned on the outer wall and a light is positioned on the attachment arm. A light sensor is positioned on the body member. A battery and timer are situated in the interior area. The light is energized when the light sensor detects lower than a predetermined amount of ambient light and when the motion detector detects movement, the light being de-energized when the timer expires.Type: ApplicationFiled: August 6, 2012Publication date: February 14, 2013Inventors: Andy Brian R., Jeff S. Barbieri
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Publication number: 20130038226Abstract: A plasma supply arrangement for supplying power to a plasma load has a quadrature coupler which has at least one capacitance and at least one inductivity and which is suitable for coupling together two HF power signals of the same frequency which are phase-shifted relative to each other by 90°, an HF power signal being supplied respectively at a first useful signal connection and at a second useful signal connection of the quadrature coupler as a useful signal, to form a coupled HF power which can be output as a useful signal at a third useful signal connection, at least one useful signal connection being configured for a first impedance. The quadrature coupler has a fourth useful signal connection which is configured for a second impedance which is higher than the first impedance, or has only three useful signal connections.Type: ApplicationFiled: September 11, 2012Publication date: February 14, 2013Applicant: HUETTINGER Elektronik GmbH + Co. KGInventor: Anton Labanc
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Publication number: 20130038227Abstract: A driving circuit for controlling power of a light-emitting diode (LED) light source includes a transformer, a switch controller, and a dimming controller. The transformer has a primary winding that receives input power from an AC/DC converter and a secondary winding that provides output power to the LED light source. The switch controller coupled between an optical coupler and the primary winding receives a feedback signal indicative of a target level of a current flowing through the LED light source from the optical coupler, and controls input power to the primary winding according to the feedback signal. The dimming controller coupled to the secondary winding receives a switch monitoring signal indicative of an operation of a power switch coupled between an AC power source and the AC/DC converter, and regulates the output power by adjusting the feedback signal according to the switch monitoring signal.Type: ApplicationFiled: February 9, 2012Publication date: February 14, 2013Applicant: O2MICRO, INC.Inventors: Tiesheng YAN, Feng LIN, Youling LI, Ching-Chuan KUO
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Publication number: 20130038228Abstract: A driver circuit apparatus for light emitting diodes comprises a current mirror (212) that includes a first branch for coupling to a first string of light emitting diodes (202), and a second branch for coupling to a second string of light emitting diodes (204). The apparatus also comprises a voltage controlled current source (214) coupled to the current mirror (212).Type: ApplicationFiled: February 15, 2010Publication date: February 14, 2013Inventor: Sheng-Chun Hu
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Publication number: 20130038229Abstract: In a control circuit for a light-emitting device, a reference voltage generation circuit detects a full-wave rectified voltage and generates a first voltage as well as generating a second voltage by converting the rectified voltage into a DC voltage. A voltage corresponding to a difference between the first voltage and the second voltage or a voltage corresponding to a ratio of the first voltage to the second voltage is generated as a reference voltage by a subtraction circuit or by a division circuit, respectively. As a result, a change in amplitude of the reference voltage can be suppressed when amplitude of the rectified voltage is varied due to a variation in an AC input voltage supplied from an AC power supply.Type: ApplicationFiled: August 8, 2012Publication date: February 14, 2013Applicant: Semiconductor Components Industries, LLCInventors: Hiroyuki KOJIMA, Noriaki Okada, Kazuhiko Saito, Shuhei Kawai, Feng Xu
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Publication number: 20130038230Abstract: Methods and apparatus to facilitate coupling a light-emitting diode (LED)-based lamp to an electronic or inductive fluorescent light fixture (typically with ballast). An LED-based lamp may include circuitry that simulates an electrical behavior of a fluorescent lamp, and can be installed and operate in the fixture without any modification to the fixture. The LED-based lamp may also include one or more LEDs that are controlled by the circuitry.Type: ApplicationFiled: August 15, 2012Publication date: February 14, 2013Applicant: NULARIS INC.Inventors: Wendell Brown, Jonathan Fram, Eric Wang
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Publication number: 20130038231Abstract: A method and a device for controlling a discharge Lamp, and a discharge lamp system are disclosed herein. The method includes the operations of: when the lamp current changes, determining a percentage of change of the lamp current according to a synchronous signal and obtaining a second lamp current after a discharge lamp current changes according to the percentage of change of the lamp current and a first lamp current; obtaining a modulating signal according to a current difference between the first lamp current and the second lamp current; and generating a pulse voltage signal according to the modulating signal. The pulse voltage signal transits from a first voltage to a second voltage during the time period when the lamp current is transited from a first lamp current to a second lamp current during a transition time.Type: ApplicationFiled: September 30, 2011Publication date: February 14, 2013Applicant: DELTA ELECTRONICS (SHANGHAI) CO., LTD.Inventors: Qi ZHANG, Wei-Qiang ZHANG, Jian-Ping YING
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Publication number: 20130038232Abstract: A light unit includes: an integrated power (“IP”) board which receives power supply and converts the power supply into a high voltage and a supply voltage; a lamp; and a terminal board (“T board”) which receives the high voltage from the IP board to turn on the lamp, receives the supply voltage from the IP board to transfer the supply voltage to the IP board, in which the IP board transfers the high voltage to the T board after the IP board receives the supply voltage from the T board.Type: ApplicationFiled: January 9, 2012Publication date: February 14, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ju-Sung CHO, Song-Yi HAN, Kyun-Ho KIM, Seung-Young CHOI
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Publication number: 20130038233Abstract: A light-emitting diode (LED) driver is provided. The LED driver, providing a drive voltage for driving an LED circuit according to an input voltage, includes a current regulator, a dimming signal generator, and a boost converter. In response to a pulse width modulation (PWM) dimming signal, the current regulator enables the LED circuit in a first PWM period and disables the LED circuit outside the first PWM period. The dimming generator generates a prolonged PWM dimming signal according to the PWM dimming signal. The prolonged PWM dimming signal has a prolonged period, a length of which is associated with a level of an input voltage. In response to the prolonged PWM dimming signal, the boost converter is enabled in a second PWM period and maintains a level of the drive voltage according to the input voltage.Type: ApplicationFiled: May 30, 2012Publication date: February 14, 2013Applicant: Raydium Semiconductor CorporationInventors: Chih-Wei Chu, Yu-Nan Yen
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Publication number: 20130038234Abstract: A system providing deep dimming of a solid state lighting (SSL) load includes a hysteretic down-converter, a shunt switch, a controller and a comparator. The down-converter controls average current value and amplitude of ripple of SSL current using amplitude modulation (AM) dimming control. The shunt switch controls magnitude of the SSL current using pulse width modulation (PWM) dimming control. The controller generates first and second PWM signals for controlling upper and lower current levels at which the down-converter operates based on the SSL current and voltage across the SSL load, and generates a third PWM signal for controlling the shunt switch based on a dimming level load set by a dimmer. The comparator circuit compares first and second analog signals corresponding to the first and second PWM signals with the SSL current, and drives the down-converter in response to the comparison. The SSL current is based on both the AM dimming control and the PWM dimming control.Type: ApplicationFiled: April 22, 2011Publication date: February 14, 2013Inventors: Geert Willem Van Der Veen, Henricus Marius Joseph Maria Kahlman
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Publication number: 20130038235Abstract: Disclosed is related with a LCD technology, and particularly to a driver of promoting pixel charging ability of a thin film transistor and a method thereof. The driver of promoting pixel charging ability of a thin film transistor comprises a thin film transistor, a first capacitor and a second capacitor. The source of the thin film transistor is coupled to the first capacitor and the second capacitor respectively. As the drain voltage switches from positive polarity to negative polarity or from negative polarity to positive polarity, a voltage different between a source voltage stored by the thin film transistor and the first capacitor voltage is higher than a predetermined value. The present invention is capable of promoting the charge current and the pixel charging ability. Meanwhile, the requirement of the metal line width can be diminished to improve aperture ratio and raise transmittance of product.Type: ApplicationFiled: August 12, 2011Publication date: February 14, 2013Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Chihtsung Kang
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Publication number: 20130038236Abstract: A control circuit of a DC/DC converter stabilizing driving a current while supplying a driving voltage to a load comprises a current detection circuit for comparing a current detection signal indicative of a current flowing through a switching transistor of the DC/DC converter with a predetermined threshold to generate an OFF signal, a timer circuit for generating an ON signal that is asserted after a predetermined time period has elapsed since an assertion of the OFF signal, a pulse generation circuit for generating a pulse signal, and a driver for driving the switching transistor based on the pulse signal, where the timer circuit includes a first capacitor, a current source for generating a charging current, an arithmetic circuit for generating a threshold voltage, and an first comparator configured to compare a voltage of the first capacitor and the threshold voltage.Type: ApplicationFiled: August 8, 2012Publication date: February 14, 2013Applicant: ROHM CO., LTD.Inventor: Mutsumi MITARASHI
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Publication number: 20130038237Abstract: A ballasted lamp socket for a gas discharge lamp, such as a compact fluorescent lamp, is adapted to replace an Edison screw-in lamp socket in a ceiling mounted light fixture, or a table or floor lamp. The ballasted lamp socket comprises a lamp-receiving portion adapted to be coupled to the gas discharge lamp, an enclosure mechanically coupled to the lamp-receiving portion, a dimming ballast circuit electrically coupled to the lamp-receiving portion and housed within the enclosure, and first and second electrical connections. The ballast portion is adapted to receive an AC line voltage and to generate a high- frequency AC voltage for driving the gas discharge lamp and controlling the light intensity of the gas discharge lamp between a high-end intensity and a low-end intensity. The first and second electrical connections are operable to receive the AC line voltage and to provide the AC line voltage to the ballast circuit.Type: ApplicationFiled: October 18, 2012Publication date: February 14, 2013Applicant: LUTRON ELECTRONICS CO., INC.Inventor: LUTRON ELECTRONICS CO., INC.
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Publication number: 20130038238Abstract: A discharge lighting assembly and a method of operating a discharge lamp 10 are described. The discharge lamp 10 includes a discharge vessel 20 with two electrodes 24 for forming an arc discharge. A driver circuit 12 supplies electrical power to the lamp 10 as an alternating lamp current IL and/or an alternating lamp voltage UL with a commutation between half periods of positive and negative values. The driver circuit 12 is controlled to be able to deliver at a predetermined delivery time tD of 10-100 ?s after commutation a voltage level Up which varies in dependence on the lifetime L of the lamp 10.Type: ApplicationFiled: April 12, 2011Publication date: February 14, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Michael Haacke, Lars Dabringhausen, Edwin Theodorus Maria De Koning, Jeroen Balm
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Publication number: 20130038239Abstract: The present invention relates to a lighting device controlling circuit module, comprising: a first bridge rectifier unit, a second bridge rectifier unit, a power factor correction unit, a controlling unit, a feedback unit, at least one switching unit, and at least one boost/buck unit. The lighting device controlling circuit module of the present invention can be made as an electronic chip for easily being integrated into an LED fluorescent lamp, therefore, a user can replace the traditional fluorescent lamp with the LED fluorescent lamp having the lighting device controlling circuit module so easily, and the user does not need to identify which two contacts of the LED fluorescent lamp are used as the power-inputting terminal before replacing the traditional fluorescent lamp by the LED fluorescent lamp.Type: ApplicationFiled: August 9, 2011Publication date: February 14, 2013Applicant: SHENZHEN TENTION OPTOECTRONICS CO. LTD.Inventor: Wei-Cheng Chiang
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Publication number: 20130038240Abstract: The present invention relates to an illumination device comprising: a number of light sources arranged in at least a first group of light sources and in a second group of light sources, where said first group of light sources and said second group of light sources are individually controllable; a number of light collecting means, said number of light collecting means collect light from said first group of light sources and convert said collected light into a number of source light beams; at least one light guide comprising an input section and an output section, said light guide receives light generated by said second group of light sources at said input section and said transfer said received light to said output section, said output section being adapted to emit said received light at an area between at least two of said source light beams.Type: ApplicationFiled: April 5, 2011Publication date: February 14, 2013Applicant: MARTIN PROFESSIONAL A/SInventors: Thomas Vinther, Claus Hansen
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Publication number: 20130038241Abstract: A system and appertaining method calibrate a color LED light unit comprising at least first-, second-, and third-color LEDs, comprising: a) defining a target color on a color map to calibrate; b) selecting initial calibration coefficients associated with the target color; c) storing the initial or updated calibration coefficients in a non-volatile memory of the light unit; d) controlling the light unit to drive the LEDs to attempt to emit the target color, producing an attempted color, utilizing the calibration coefficients; e) measuring the attempted color to determine if it matches the target color within a predefined tolerance; f) if the attempted color matches the target color, then terminating the method; g) if the attempted color does not match the target color, then performing the following; h) selecting a color component; i) adapting at least one calibration coefficient associated with the selected color component; and j) performing (c)-(i) again.Type: ApplicationFiled: October 12, 2012Publication date: February 14, 2013Applicant: B/E Aerospace, Inc.Inventor: B/E Aerospace, Inc.
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Publication number: 20130038242Abstract: A power supply includes a load connected in series with a switch. The power supply uses the load in series with the switch to maintain a substantially constant voltage. The voltage may be used as a voltage bias and supplied to a controller module that is used to control switching of the switch. The load is operable to maintain a substantially constant voltage at an input terminal of the load and also to function as a current sink. The load may also perform an additional function, such as provide auxiliary lighting or operate as a cooling mechanism for the power supply and/or a lighting system that includes the power supply.Type: ApplicationFiled: August 10, 2011Publication date: February 14, 2013Applicant: Cree, Inc.Inventor: Praneet Jayant Athalye
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Publication number: 20130038243Abstract: Disclosure has current-controlling stages, backlight systems and control methods for driving LEDs. A disclosed current-controlling stage has a current controller and a feedback apparatus. The current controller is coupled to a light-emitting device, for making the driving current through the light-emitting device substantially a predetermined value. The current controller has a control node, at which a control voltage substantially controls the driving current. The feedback apparatus influences a compensation voltage based on the control voltage to keep the control voltage substantially around a first predetermined value. The compensation voltage substantially determines an output power of a voltage-controlling stage.Type: ApplicationFiled: July 16, 2012Publication date: February 14, 2013Applicant: LEADTREND TECHNOLOGY CORPORATIONInventor: Ching-Tsan Lee
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Publication number: 20130038244Abstract: The disclosed lighting device gradually adjusts from an incandescent bulb color having a 30% dimming rate to a daylight color having a 100% dimming rate. The overall dimming rate is changed to a linear shape, and the ratio of the dimming rates of the incandescent bulb color and the daylight color is adjusted. When changing from the incandescent bulb color to the daylight color, the color is changed to an intermediate color that mixes the incandescent bulb color and the daylight color, and then ultimately is changed to the daylight color, and so it is possible to change the dimming rate without causing discomfort or annoyance in humans, and a comfortable and natural light environment is achieved.Type: ApplicationFiled: April 11, 2011Publication date: February 14, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Miwa Kamii, Masako Nishihashi
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Publication number: 20130038245Abstract: Embodiments of the present invention provide for the rapid reignition of a high intensity discharge lamp. In one embodiment of the invention, an apparatus for a fast reigntion of a high intensity discharge lamp is disclosed. The apparatus is comprised of a ballast operatively coupled to the lamp that is configured to receive power from a power supply. The apparatus is also comprised of a timer circuit that enters a timing phase and produces a quantum of timing information when the lamp ceases receiving power from the power supply. This timer circuit does not require external power during the timing phase. The apparatus is additionally comprised of a control circuit that receives the timing information and permits the ballast to reignite the lamp based on the information.Type: ApplicationFiled: October 18, 2012Publication date: February 14, 2013Applicant: LUMETRIC LIGHTING, INC.Inventor: Lumetric Lighting, Inc.
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Publication number: 20130038246Abstract: A light-emitting device includes: a substrate; the metal film at the mounting region on the substrate; a light-emitting part including a plurality of light-emitting elements disposed on the metal film; metal members formed on the substrate, respectively including pad parts and wiring parts, forming a positive electrode and a negative electrode configured to apply a voltage to the light-emitting element through the wiring parts, respectively; and a plating wire connected to the metal film, extended to a side face of the substrate. The metal film and the metal members are independently disposed. The wiring part of the positive electrode and the wiring part of the negative electrode are formed at a circumference of the mounting region. The metal members are formed apart from the circumferential edge of the substrate on the side of the mounting region of the substrate.Type: ApplicationFiled: April 1, 2011Publication date: February 14, 2013Applicant: NICHIA CORPORATIONInventor: Haruaki Sasano
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Publication number: 20130038247Abstract: A laser light source module that does not emit laser light when taken out of a device or that does not emit laser light when the device is modified by removing a portion of the device is installed and used in a case and is provided with: a laser unit that includes a memory unit that stores a password and that operates when an input password that is entered matches a password stored in the memory unit; a password-setting mechanism that generates different data according to the state of the case; and a password-generating circuit that generates an input password that matches the password stored in the memory unit by means of data generated by means of the password-setting mechanism when the casie is in a normal state.Type: ApplicationFiled: June 3, 2011Publication date: February 14, 2013Applicant: NEC CORPORATIONInventor: Fujio Okumura
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Publication number: 20130038248Abstract: A drift-tube linear accelerator that passes an injected particle beam through inside a plurality of cylindrical drift-tube electrodes arranged in a cylindrical cavity in a particle beam traveling direction and accelerates the particle beam by a radio-frequency electric field generated between the plurality of cylindrical drift-tube electrodes, wherein at least part of a focusing device for focusing the particle beam is disposed inside an end drift-tube electrode that is arranged nearest the injection side of the cylindrical cavity among the plurality of cylindrical drift-tube electrodes, with the focusing device being positionally adjustable independently of the end drift-tube electrode.Type: ApplicationFiled: June 14, 2011Publication date: February 14, 2013Inventors: Kazuo Yamamoto, Hirofumi Tanaka, Hiromitsu Inoue, Sadahiro Kawasaki
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Publication number: 20130038249Abstract: The present invention relates to a drive system with energy recovery for driving a machine, in particular for driving a crane, wherein the drive system includes at least one fuel cell unit, at least one capacitive energy storage unit and at least one drive motor, and wherein the fuel cell unit and the energy storage unit are connected in parallel and feed at least one drive motor. According to the invention, the capacitive energy storage unit is dimensioned such that the differential voltage occurring during operation between the fuel cell unit and the capacitive energy storage unit is minimized to such an extent that the current caused by the voltage within the parallel connection of fuel cell unit and energy storage unit does not exceed a defined safe limit value, wherein the fuel cell unit and the energy storage unit are directly coupled with each other and with the remaining drive components without DC/DC converter.Type: ApplicationFiled: February 18, 2011Publication date: February 14, 2013Inventor: Nejat Mahdavi Tabatabaei
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Publication number: 20130038250Abstract: A fan control system includes a fan and a fan control circuit. The fan control circuit includes a connector, a control unit, a switch unit, and a delay unit. The control unit is connected to the connector to receive a rotation speed control signal, and connected to the fan. The switch unit is connected to the connector to receive a voltage signal, and connected to the control unit. The delay unit is connected to the connector to receive the rotation speed control signal, and connected to the switch unit. When the delay unit receives the rotation speed control signal, the delay unit outputs a control signal to turn on the switch unit after a time delay, the voltage is transmitted to the control unit through the switch unit, the fan operates, the control unit controls rotation speed of the fan according to the rotation speed control signal.Type: ApplicationFiled: August 2, 2012Publication date: February 14, 2013Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTDInventors: KANG WU, BO TIAN
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Publication number: 20130038251Abstract: A motor control device has a drive circuit that drives an electric motor with a battery as a power supply, a switch element that is provided between the battery and the drive circuit, the switch element supplying a current from the battery to the drive circuit when being turned on, the switch element cutting off the current from the battery to the drive circuit when being turned off, a rotation speed detector that detects a rotation speed of the electric motor, and a controller that operates the drive circuit to control the electric motor. The controller turns on the switch element when the rotation speed of the electric motor, which is detected by the rotation speed detector, is greater than or equal to a first predetermined value during stopping of the control of the electric motor.Type: ApplicationFiled: August 8, 2012Publication date: February 14, 2013Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.Inventors: Takayuki Fukuoka, Yoshiki Yamagishi, Satoshi Kido, Yasutaka Shirota
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Publication number: 20130038252Abstract: In a method for reducing the starting current of a multi-phase machine operated by block commutation, which includes a battery, one high side switch for each phase, a low side switch and a phase winding as well as a rotor, the high side switch assigned to one current phase or the low side switch assigned to one current phase is held in the closed state, and the low side switches or the high side switches assigned to the other current phases are alternately controlled.Type: ApplicationFiled: February 9, 2011Publication date: February 14, 2013Inventors: Fabio Magini, Paul Mehringer, Julian Roesner
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Publication number: 20130038253Abstract: A motor device includes an electric motor operated when supplied with power from a rechargeable battery, a voltage detection unit that detects voltage of the rechargeable battery, a determination unit that performs an abnormality determination based on a comparison of the voltage of the rechargeable battery, which is detected by the voltage detection unit, and a determination value, a control unit that controls the operation of the electric motor in accordance with the determination result of the determination unit, and a temperature detection unit that detects the usage environment temperature. The determination unit changes the determination value in accordance with the temperature detected by the temperature detection unit and performs the abnormality determination based on the changed determination value.Type: ApplicationFiled: April 8, 2011Publication date: February 14, 2013Applicant: Panasonic CorporationInventors: Masaki Ikeda, Norihiro Iwamura
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Publication number: 20130038254Abstract: Systems, methods and apparatus are provided through which in some multisensory implementations, a patient-lifting-device is controlled by voice recognition, keyboard text input, synaptic control and/or a tongue tactile input commands.Type: ApplicationFiled: October 18, 2012Publication date: February 14, 2013Applicant: ALTORR CORPORATIONInventor: Altorr Corporation
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Publication number: 20130038255Abstract: An energy recapturing apparatus is disclosed for use with a ceiling fan that includes a housing defining an interior area and having a rotatable fan blade assembly. The apparatus includes a combined motor/generator situated in the housing interior space, the motor/generator being operatively connected to the fan blade assembly to apply energy to rotate the fan blade assembly when energized and to receive kinetic energy from rotation of the fan blade assembly when de-energized. A switch is electrically connected to the motor/generator to selectively energize or de-energize the motor/generator. The motor/generator is configured to generate electricity from the kinetic energy received from the fan blade assembly. An electricity storage device is electrically connected to the motor/generator and configured to store electricity generated by the motor/generator. A controller causes stored electricity to be transferred to the motor/generator upon its activation.Type: ApplicationFiled: August 10, 2011Publication date: February 14, 2013Inventor: Adam G. Trainque
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Publication number: 20130038256Abstract: A current sensor detects a bus current flowing to an inverter. An estimation section uses actual currents id and id outputted from a d-q conversion section as initial values, estimates currents flowing in a motor/generator and calculates estimated currents ide and iqe. A UVW conversion section converts the estimated current ide and iqe to three phase currents. A selection section inputs, as currents flowing in each phase of the motor/generator, three out of outputs of the UVW conversion section and the bus current. The bus current is used as the current of one phase, if a voltage vector representing an operation state of the inverter is an effective voltage vector.Type: ApplicationFiled: August 7, 2012Publication date: February 14, 2013Applicant: DENSO CORPORATIONInventor: Kiyoshi FUJII
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Publication number: 20130038257Abstract: The disclosed device comprises a duty calculator for calculating a duty command value (Dty), a duty limiter for limiting the duty command value (Dty) to a value according to a limit value (L), a current flow monitor for determining that there is an overcurrent if a current value (Idet) flowing through a winding exceeds a predetermined threshold value (Ithr), and a limit value generator for generating the limit value (L). The limit value generator updates the limit value (L) at predetermined time intervals and for a value corresponding to a difference between the threshold value (Ithr) and the current value (Idet) at a time in order to decrease the current value (Idet) during a period in which the overcurrent is determined.Type: ApplicationFiled: June 2, 2011Publication date: February 14, 2013Applicant: PANASONIC CORPORATIONInventor: Daisuke Sato
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Publication number: 20130038258Abstract: A power supplied by an AC power supply is used as an input to a rectifying circuit, and an output of the rectifying circuit is used as an input to a smoothing capacitor having a capacitance of about 1/100 of the capacitance of conventionally used capacitance. The capacitor is provided between a positive electrode node and a negative electrode node located between bus lines of output of rectifying circuit. Diodes constituting a rectifying circuit are connected respectively with phase outputs of an inverter. The rectifying circuit is connected to the negative electrode node through a capacitor. The rectifying circuit is connected such that an electric current flows only in the direction from an output of the inverter to the capacitor. The load is connected in parallel with capacitor.Type: ApplicationFiled: March 9, 2011Publication date: February 14, 2013Inventor: Hiroyuki Kameyama
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Publication number: 20130038259Abstract: The present invention relates to a motor controller employing bootstrap-capacitor supplies and in particular to the situation where the bootstrap supplies have to be charged, while the motor controller is connected to a spinning and energized motor. The present invention introduces a method of recharging based on choosing a recharging sequence from a set of recharging sequences, where the choice depends on the state of the connected motor and in particular on the back-EMF voltages of the motor.Type: ApplicationFiled: February 18, 2011Publication date: February 14, 2013Inventor: Henrik Rosendal Andersen
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Publication number: 20130038260Abstract: A method and apparatus for dynamically adjusting a dead time of a BLDC motor during a phase change detect the winding current of the BLDC motor during the dead time, and terminate the dead time when the winding current is detected to be substantially or close to zero. Thus, the method and apparatus can optimize the dead time and switch the BLDC motor between two phases at a zero-current point, without reducing the maximum rotation speed of the BLDC motor.Type: ApplicationFiled: August 9, 2012Publication date: February 14, 2013Applicant: RICHTEK TECHNOLOGY CORPORATIONInventors: Haó-Yu CHANG, Pei-Cheng HUANG, Wei-Hsu CHANG, Kuo-Chung LEE
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Publication number: 20130038261Abstract: A permanent-magnet AC motor comprises a motor and a controller coupled to the motor. The motor includes a winding. The controller includes a drive model configured to provide a drive current. Waveform of the drive current is spatially symmetrical. The winding has a waiting zone having electrical angle of 30° and a driving zone having electrical angle of 150° in each half electrical cycle when the motor is in operation. The driving zone is equally divided into five driving sub-zones.Type: ApplicationFiled: April 26, 2010Publication date: February 14, 2013Inventor: Lei Bi
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Publication number: 20130038262Abstract: A motor control device has a drive circuit that drives an electric motor with a battery as a power supply, a switch element that is provided between the battery and the drive circuit, the switch element supplying a current from the battery to the drive circuit when being put into an on state, the switch element cutting off the current from the battery to the drive circuit when being put into an off state, a voltage detector that detects a voltage at the drive circuit, and a controller that operates the drive circuit to control the electric motor. The controller turns on the switch element when the voltage at the drive circuit, which is detected by the voltage detector, is greater than or equal to a first predetermined value during stopping of the control of the electric motor.Type: ApplicationFiled: August 8, 2012Publication date: February 14, 2013Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.Inventors: Takayuki Fukuoka, Yoshiki Yamagishi, Satoshi Kido, Yasutaka Shirota
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Publication number: 20130038263Abstract: A lifting apparatus for a lift system is disclosed. The apparatus includes a) a motor adapted for providing a lifting force, b) at least one connector operatively connected to the motor, the connector adapted for connecting a load-bearing component to the motor, c) an information receiver for receiving a load limit information about the load-bearing component, d) a motor controller electrically coupled to the motor and the information receiver, wherein the motor controller is adapted to limit the lifting force of the motor based on the load limit information received by the information receiver.Type: ApplicationFiled: January 6, 2011Publication date: February 14, 2013Applicant: ARJOHUNTLEIGH MAGOG INC.Inventors: Martin Faucher, Marie-Lou Joncas, Dennis-Alexandre Brulotte
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Publication number: 20130038264Abstract: In a method of fan speed control, a flow value corresponding to airflow amount through a fan during operation of the fan is detected with a fan controller. The flow value and a preset value are subsequently compared, and when the flow value is less than the preset value, a pulse-width-modulation (PWM) signal is outputted to increase rotation speed of the fan.Type: ApplicationFiled: August 11, 2011Publication date: February 14, 2013Applicant: YEN SUN TECHNOLOGY CORP.Inventors: Chien-Jung CHEN, Hsien-Wen LIU, Tzu-Wen TSAI
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Publication number: 20130038265Abstract: To stably control a driving object to approach and contact a pressure object at a low impact, to suppress a vibration generated when the driving object presses the pressure object, and to enable a motor controller to operate based on a simple command, a regression torque controller of the motor controller limits a torque-control velocity command to up to a velocity limit value vlim defined based on a contact velocity between a driving object and a pressure object and outputs the torque-control velocity command, and a velocity controller of the motor controller calculates a torque command so that a motor velocity can follow the torque-control velocity command output from the regression torque controller.Type: ApplicationFiled: February 7, 2011Publication date: February 14, 2013Applicant: Mitsubishi Electric CorporationInventors: Yuji Igarashi, Hidetoshi Ikeda, Kiyoshi Maekawa, Kei Terada
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Publication number: 20130038266Abstract: Provided is an actuator control apparatus including: an observer configured to estimate a state of a load based on a state equation including at least one modeled load parameter; a controller which outputs a signal for controlling the load; a compensation unit which compensates for the signal output from the controller; and an estimator configured to estimate a change of a load parameter, to decide a gain of the compensation unit based on the estimated change of the load parameter, and to update the modeled load parameter.Type: ApplicationFiled: February 15, 2012Publication date: February 14, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seong-Taek LIM, Jong-Sun KO, Jin-Woo CHO
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Publication number: 20130038267Abstract: A method and device for harvesting and storing solar energy is provided. The device converts solar energy to electrical energy via the photovoltaic effect. The device includes a pair of electrodes, at least one of which is transparent to allow solar energy to pass through. A medium is disposed between the electrodes which exhibits a combination of photovoltaic and ferroelectric properties. When solar energy passes through the transparent electrode and is received by the medium, electron-hole pairs establish a voltage potential between electrodes in the device via the photovoltaic effect. The voltage potential may be retained and the mobile charge may be stored in the absence of solar energy via the ferroelectric effect.Type: ApplicationFiled: August 8, 2011Publication date: February 14, 2013Inventors: Hongrui Jiang, Chensha Li, Chi-Wei Lo
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Publication number: 20130038268Abstract: Apparatus comprise a photovoltaic cell arrangement having a front surface and a rear surface, and first and second conductor patterns formed on different ones of the front and rear surfaces. The first conductor pattern comprises at least one loop, and the apparatus comprises at least a first terminal connected to the second conductor pattern, and second and third terminals connected to different ends of the at least one loop of the first conductor pattern. A transducer arrangement comprises a transducer body having a front surface and a rear surface, and first and second conductor patterns formed on different ones of the front and rear surfaces. The first conductor pattern comprises at least one loop. The transducer arrangement comprises at least a first terminal connected to the second conductor pattern, and second and third terminals connected to different ends of the at least one spiral loop of the first conductor pattern.Type: ApplicationFiled: April 28, 2010Publication date: February 14, 2013Applicant: NOKIA CORPORATIONInventor: Rouvala Markku
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Publication number: 20130038269Abstract: A handheld mobile electrical assembly that includes a handheld mobile electrical device. The handheld mobile electrical device has a main body with a display, a plurality of inputs and a battery pack that powers the display and inputs. The battery pack has an exterior surface with an electrically conductive section that mates with an electrically conductive section of a carrying container that has its own separate battery pack such that the handheld mobile electrical device charges while within the carrying container. The carrying container is then recharged once the batteries in the battery pack of the carrying container run low without the need to shut off the handheld mobile electrical device that remains fully charged.Type: ApplicationFiled: August 10, 2011Publication date: February 14, 2013Inventor: Steven Stilts
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Publication number: 20130038270Abstract: An output power controller in a system having two or more secondary batteries connected in parallel. A battery ECU transfers all the stored electric charge from one secondary battery to another secondary battery when battery temperature and state of charge (SOC) are so low that an output power requirement cannot be satisfied. The SOC of the secondary battery increases by the transfer of the stored electric charge and output power sufficient for the output power requirement can be obtained. Further, the secondary batteries are heated by thermal energy generated by the transfer of the stored electric charge.Type: ApplicationFiled: February 3, 2011Publication date: February 14, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yasuhiro Endo, Hiroaki Takeuchi, Yukihiro Minezawa
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Publication number: 20130038271Abstract: Disclosed is a system for controlling a hybrid vehicle when the state of charge of a high voltage battery is sufficiently low. In particular, a motor unit is connected to an engine via a rotation element, a high voltage battery is electrically connected to the motor unit to provide power thereto, and a low voltage battery is electrically connected to the high voltage battery through a two-way converter. Advantageously, a control portion is configured to boost voltage of the low voltage battery to supply the high voltage battery with high voltage through the two-way converter when the state of charge of the high voltage battery falls below a first predetermined value.Type: ApplicationFiled: November 30, 2011Publication date: February 14, 2013Applicant: HYUNDAI MOTOR COMPANYInventor: Hyongjoon Park
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Publication number: 20130038272Abstract: A charging apparatus assigns an area ID, which is information that the charging apparatus uses to determine the presence of a vehicle, to a charging area BS and transmits the assigned area ID. Based on return of the transmitted area ID from the vehicle 200, the charging apparatus establishes pairing, which is a communication connection setting, between the charging apparatus and the vehicle. The charging apparatus then performs electric power management of the electric power transmitted from the charging area BS to the vehicle in a non-contact manner through wireless communication between the paired vehicle and charging apparatus.Type: ApplicationFiled: December 24, 2010Publication date: February 14, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Koji Sagata