Patents Issued in March 19, 2015
  • Publication number: 20150076965
    Abstract: A motion control system that includes a base, a stage supported by the base and movable with respect to the base, and a motor coupled to the base and operable to move the stage. The motor includes a mounting base arranged to connect the motor to the base, a friction pad engageable with the stage, and a coupling portion including a first end connected to the mounting base and a second end. The friction pad is connected to the coupling portion between the first end and the second end. A piezoelectric element is disposed between the mounting base and the second end and is operable in response to an electrical signal to move the friction pad and the stage. A mounting screw is accessible from an exterior of the base and engages the coupling portion.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Inventor: William Culpi
  • Publication number: 20150076966
    Abstract: A piezoelectric device and a method of manufacturing a piezoelectric device are provided. The piezoelectric device includes first and second electrodes disposed on a first surface of a piezoelectric layer; third and fourth electrodes disposed on a second surface of the piezoelectric layer, a first conductor electrically connecting the first and fourth electrodes, and a second conductor electrically connecting the second and third electrodes, in a cross-link with the first conductor.
    Type: Application
    Filed: July 11, 2014
    Publication date: March 19, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-hoon CHO, Hwi-yeol PARK, Jin S. HEO
  • Publication number: 20150076967
    Abstract: The present disclosure relates to a multilayer piezoelectric element which includes a plurality of piezoelectric layers with a thickness of 15 ?m to 100 ?m each; and internal electrodes interposed between the plurality of piezoelectric layers and laminated to alternately form an anode and a cathode.
    Type: Application
    Filed: September 16, 2014
    Publication date: March 19, 2015
    Inventors: Boum Seock KIM, Hui Sun PARK, Jung Wook SEO
  • Publication number: 20150076968
    Abstract: A rotor of an electric machine is provided and includes first and second core elements formed to define annular arrays of axial slots and rotor bar openings, each axial slot being fluidly communicative with a corresponding one of the rotor bar openings and a spacer element interposed between the first and second core elements to define a rotor vent opening fluidly communicative with the axial slots.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 19, 2015
    Applicant: SIEMENS INDUSTRY, INC.
    Inventor: Nicholas G. Lang
  • Publication number: 20150076969
    Abstract: A stator of an electric machine is provided and includes laminations arranged to form a core packet. Each lamination is formed to define an annular array of teeth at an inner radial portion thereof and an annular array of annular sectors at an outer radial portion thereof.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 19, 2015
    Applicant: SIEMENS INDUSTRY, INC.
    Inventors: Daniel Lasorso, Nicholas G. Lang
  • Publication number: 20150076970
    Abstract: A rotary electric machine is provided which includes a rotor, a stator, a power circuit which includes a power element, a control circuit which controls the power element, a frame which accommodates the rotor and the stator, a cooling fin which is made of metal and is connected to the frame to cool the power circuit, and a fixing member which is made of metal and is connected to the cooling fin to fix the control circuit.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 19, 2015
    Inventor: Shinya OOWATARI
  • Publication number: 20150076971
    Abstract: An electric motor apparatus that includes a disk with an increased mechanical advantage to the axle, donut-shaped permanent magnets, windings, a fulcrum (A.K.A. axle), bearings, a commutator, and a single bearing conductor that replaces the brushes. The windings with the axis placed parallel to the orbit around the fulcrum on a disk. The donut-shaped permanent magnets are cut with a slot to allow passage of the disk, spools, and windings. When windings of magnet wire are inserted with the axis parallel to the orbit around an axle inside the center of a donut-shaped permanent magnet, and the windings are electrified with the correct polarity, the windings are repulsed magnetically in the direction of rotation of the orbit around the fulcrum causing the disk and axle to rotate.
    Type: Application
    Filed: September 15, 2013
    Publication date: March 19, 2015
    Inventor: Greg Matthew Davison
  • Publication number: 20150076972
    Abstract: The invention relates to a drive device, particularly comprising an internal rotor motor, with a motor housing, a stator for a winding and a rotor having at least one permanent magnet, wherein the motor housing has a housing part extending substantially radially on one side of the stator and the rotor has two rotor bearings. The rotor bearings are arranged on the substantially radially extending housing part or on a part connected thereto which extends substantially axially.
    Type: Application
    Filed: April 11, 2013
    Publication date: March 19, 2015
    Inventors: Heinz Leiber, Valentin Unterfrauner, Thomas Leiber
  • Publication number: 20150076973
    Abstract: Disclosed herein are a piece of furniture and a method for dispensing diapers. The furniture keeps diapers neatly organized and conveniently accessible for dispensing. The furniture has an elongated interior space, a platform, a lead screw, a motor, a detector, and a processor. The platform can hold a stack of diapers and move the stack of diapers so they can be dispensed from the top of the piece of furniture. Rotating a lead screw raises and lowers the platform within the piece of furniture. A detector positioned at the top of the interior space of the piece of furniture is configured to detect when a diaper is dispensed from the interior space. A processor in communication with the detector and the motor is configured to activate the motor, thereby raising the platform, when the detector detects that a diaper has been dispensed from the piece of furniture.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 19, 2015
    Inventor: Donald A. PIERSON
  • Publication number: 20150076974
    Abstract: Work top with extensible retaining means. The present invention relates to a work top (1) with extensible retaining means (3, 4). The latter are configured as U-shaped brackets. They are either introduced laterally into the work top or they are introduced into a retaining frame (5), winch is located beneath the work top, or they are introduced laterally into a drawer, which is located beneath the work top, or they are guided through bracket holders, which are fitted beneath the work top. If the retaining means are in the extended state, then it is possible to fit in containers (8) which can serve, for example, for receiving waste. The extensible retaining; means allow the containers to be fitted in a space-saving and straightforward manner. It is also possible for the retaining means to be fitted on more than one side of the work top. Furthermore, it is possible for a plurality of retaining means, in combination with one another to receive one or more containers.
    Type: Application
    Filed: April 5, 2013
    Publication date: March 19, 2015
    Inventor: Johannes SCHREITER
  • Publication number: 20150076975
    Abstract: A container data center includes one container body and at least one cabinet set that is arranged in the container body in one direction. Each cabinet set includes at least one cabinet, and a direction in which the at least one cabinet is arranged is perpendicular to the direction in which the cabinet set is arranged. Bottoms of all cabinets in each cabinet set are fastened on one shock absorbing platform, and a bottom of the shock absorbing platform is fastened to a bottom of the container body by using multiple shock absorbers. The container data center can reduce an impact of vibration and a shock on a data center pipe in a transportation process.
    Type: Application
    Filed: November 24, 2014
    Publication date: March 19, 2015
    Inventors: Yonghui Peng, Feng Ao, Dongli Wang
  • Publication number: 20150076976
    Abstract: A cabinet rack includes a frame having first and second sides, and first and second power distribution unit brackets. The first power distribution bracket is connected to a first edge of the first side of the frame via a first rotating mount. The second power distribution bracket is connected to a first edge of the second side of the frame via a second rotating mount.
    Type: Application
    Filed: September 17, 2013
    Publication date: March 19, 2015
    Applicant: Dell Products, LP
    Inventors: Mark M. Bailey, Anthony P. Middleton
  • Publication number: 20150076977
    Abstract: A laundry treatment apparatus including a casing having an upwardly open laundry entrance a door for opening/closing the laundry entrance, and an operation unit for receiving predetermined control instructions to control an operation of the laundry treatment apparatus, in which the operation unit is disposed on a front portion of the door and moves on the top of the casing when the door opens.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 19, 2015
    Inventors: Kihyuk KIM, Eunyoung CHEE, Youjin CHUNG
  • Publication number: 20150076978
    Abstract: An enclosure having a housing with a front wall and a back wall, and an opening in the front wall. A door having a top and a bottom and an inner face and an outer face, and the door is rotatably attached to the housing. The door is configured to cover the opening when the door is in a closed position. A gasket is attached to the inner face of the door and located at least over a top of the opening of the housing when the door is in the closed position. The gasket is located closer to a top of the door in a center of the door, and the gasket is further from the top of the door as the gasket approaches opposing sides of the door.
    Type: Application
    Filed: September 16, 2014
    Publication date: March 19, 2015
    Inventor: Jeffrey S. Ellingson
  • Publication number: 20150076979
    Abstract: A storage apparatus for use on a wall and with jewelry is disclosed. The apparatus includes a receiver and a cover. The receiver is adapted to receive the jewelry and is attached to the wall in use such that the receiver presents the jewelry received away from the wall. The cover has a presentation face and is attached to the receiver for sliding movement between a storage position where the receiver is disposed behind the presentation face and an extended position beside the receiver to permit access to jewelry received by the receiver. The presentation face can be a mirror; or a picture-receiving face, in which case, the apparatus also functions as a picture frame; or a transparent panel, in which case the apparatus also functions as a presentation fixture.
    Type: Application
    Filed: November 30, 2013
    Publication date: March 19, 2015
    Inventor: Kerri-Lee Benson
  • Publication number: 20150076980
    Abstract: A fastener assembly arranged about a perimeter of a door for an enclosure is provided. The fastener assembly includes a compression limiter, a bolt and a retaining ring. The compression limiter is disposed on an inner surface of the door and configured to press against a fastener receptacle block on the enclosure. The compression limiter has an opening. The bolt passes through the opening of the compression limiter and is configured to be fastened to a threaded opening in the fastener receptacle block. The retaining ring is disposed in the opening of the compression limiter and is configured to retain the bolt with the door.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 19, 2015
    Applicant: Caterpillar Inc.
    Inventors: Andrew B. Robinson, Michael J. Jensen, Jeffrey J. Johnson
  • Publication number: 20150076981
    Abstract: A modular integrated galley in a passenger vehicle, including a mounting rack in the form of a vertical wall including upper, middle and lower storage areas, at least one storage slot extending laterally between the middle and lower storage areas for storing a work surface therein, and a latch for ejecting the work surface at least partially from the slot into a position for being further extended into a fully deployed position by a user. An elongate hinge that extends vertically along a mounted edge of the doors and is adapted for allowing the door to move 180 degrees of travel between its closed and open positions is also disclosed.
    Type: Application
    Filed: November 21, 2014
    Publication date: March 19, 2015
    Inventors: Mark Hacker, William David Noble, Anthony Earl Chamberlin, Erik Eivind Sutton Nilsen, James Brian Hauser
  • Publication number: 20150076982
    Abstract: Provided herein is an apparatus, including: a component drawer, a chassis including an opening configured to removably receive the component drawer therethrough, a cover for the component drawer, and means for locking the component drawer in the chassis during movement of the component drawer into the chassis with the cover in a storage position, and for releasing the component drawer from the chassis when the cover is the non-storage position.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 19, 2015
    Inventors: Francis Degay, Damien Vauvel, Philippe Pardonnet
  • Publication number: 20150076983
    Abstract: A sliding drawer is coupled to a gondola-style shelving unit by providing mounting brackets and telescoping brackets which are used to couple the drawer to the shelf of a gondola-style shelving unit. Alternatively, the shelf may be eliminated by mounting brackets with the hooks typically found at opposite sides of a gondola-style shelf. Whether the shelf is employed or the hooks are provided on the mounting brackets, the hooks mate with slots in the upright vertical posts of the frame of the gondola-style shelving unit to mount the drawer to the frame.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 19, 2015
    Applicant: Streater LLC
    Inventor: Thomas G. Lindblom
  • Publication number: 20150076984
    Abstract: A refrigerator includes a body having a storage space. The body includes an inner case having the storage space, an outer case having an inside surface spaced a predetermined gap from an outside surface of the inner case to house the inner case, a vacuum space provided between the inner case and the outer case sealed to maintain a vacuum state for heat insulating between the inner case and the outer case, a supporting portion provided to contact with the outside surface of the inner case and the inside surface of the outer case to maintain a spaced state of the vacuum space, and a dewing preventive unit adjacent to the supporting portion for preventing dewing from taking place at the outer case by suppressing surface temperature drop of the outer case caused by cold conducted from the inner case to the outer case through the supporting portion.
    Type: Application
    Filed: October 10, 2014
    Publication date: March 19, 2015
    Inventors: Wonyeong JUNG, Myungryul LEE, Sung JHEE
  • Publication number: 20150076985
    Abstract: A refrigerator and a shelf assembly for a refrigerator are provided. The refrigerator may include a cabinet provided with a storage compartment, and a shelf assembly mounted in the storage compartment to adjust a height of a shelf. The shelf assembly may include a shelf mounted to vertically move in the storage compartment, a frame mounted to be vertically movable and support the shelf, at least one rotation gear provided at each of opposite sides of the frame, a pair of guide brackets provided at the opposite sides of the frame, a pair of sliders moved within the pair of guide brackets by the rotation gears, an exterior of each of the pair of sliders being provided with at least one protrusion, a power transmission to transmit rotatory power of the rotation gears to the pair of sliders, at least one guide groove formed on each of opposite inner surfaces of the storage compartment to guide movement of the protrusions, and a rotation device to rotate the rotation gears.
    Type: Application
    Filed: August 19, 2014
    Publication date: March 19, 2015
    Applicant: LG Electronics Inc.
    Inventors: Daehyun YOO, Jaeyoul LEE
  • Publication number: 20150076986
    Abstract: There is provided an electrode module for an LED lamp. The electrode module is provided by cutting an original electrode plate in a predetermined shape, the original electrode plate including a nonconductive frame having a mounting hole for accommodating an LED device, and a conductive electrode pattern integrally coupled with the frame and supplying power to the LED device. The electrode pattern has unit bodies formed repeatedly, and each unit body includes first and second parallel lines arranged on both sides, a body portion interposed between the first and second parallel lines, and upper and lower lines arranged at the upper and lower portions of the body portion and connected with the body portion through a vertical disconnectable portion. Both sides of the upper and lower lines connected to the body portions, which are adjacent to each other, are connected with each other through first and second serial lines.
    Type: Application
    Filed: January 9, 2014
    Publication date: March 19, 2015
    Inventor: Wone-Hee Choi
  • Publication number: 20150076987
    Abstract: Robust, flexible, lightweight, low profile enhanced performance dielectric barrier discharge actuators (plasma actuators) based on aerogels/nanofoams with controlled pore size and size distribution as well as pore shape. The plasma actuators offer high body force as well as high force to weight ratios (thrust density). The flexibility and mechanical robustness of the actuators allows them to be shaped to conform to the surface to which they are applied. Carbon nanotube (CNT) based electrodes serve to further decrease the weight and profile of the actuators while maintaining flexibility while insulating nano-inclusions in the matrix enable tailoring of the mechanical properties. Such actuators are required for flow control in aeronautics and moving machinery such as wind turbines, noise abatement in landing gear and rotary wing aircraft and other applications.
    Type: Application
    Filed: May 27, 2014
    Publication date: March 19, 2015
    Inventors: Godfrey SAUTI, Tian-Bing XU, Emilie J. Siochi, Stephen P. Wilkinson, Mary Ann B. Meador, Haiquan N. Guo
  • Publication number: 20150076988
    Abstract: A field emission device comprises one or more emitter elements, each having a high aspect ratio structure with a nanometer scaled cross section; and one or more segmented electrodes, each surrounding one of the one or more emitters. Each of the one or more segmented electrodes has multiple electrode plates. This abstract is provided to comply with rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Inventors: Thomas Plettner, Mehran Nasser-Ghodsi
  • Publication number: 20150076989
    Abstract: A processor receives data associated with a device. On the basis of the data associated with the device, the processor modulates a light from the artificial light source at a rate imperceptible to a human eye while detectable by a light sensor device. The modulated light is representative of the data associated with the device. The modulated light is detected, demodulated, and decoded by the light sensor device to retrieve the data associated with the device. Further, the data associated with the device is presented by the light sensor device to a user. In addition, the light sensor device is configured to receive input data from the user and communicate the input data to the processor via a wireless link. The processor is configured to receive the input data from the light sensor device and effect a change in a characteristic of the device based on the received input data.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventors: Kenneth Dale Walma, Brian Elwell
  • Publication number: 20150076990
    Abstract: A system includes: a splitter to branch an optical signal output by a wavelength-tunable light source into first to third optical signals; a first photodiode to perform an optical electrical conversion of the first optical signal transmitting a first etalon; a second photodiode to perform an optical electrical conversion of the second optical signal transmitting a second etalon, an FSR of the second etalon being identical to that of the first etalon, peak wavelengths of intensity of a transmitted light of the second etalon being different from those of the first etalon; a third photodiode to perform an optical electrical conversion of the third optical signal; and a controller to control the wavelength-tunable light source with use of a coefficient calculated by following formulas (1) or (2), Coefficient=(PD1?A·PD3)/(PD2?B·PD3) (1) and Coefficient=(PD2?B·PD3)/(PD1?A·PD3) (2).
    Type: Application
    Filed: September 17, 2014
    Publication date: March 19, 2015
    Inventors: Katsumi UESAKA, Eiichi BANNO, Hajime SHOJI, Hiroyuki MATSUURA, Haruhiko KUWATSUKA, Ken TANIZAWA, Shu NAMIKI
  • Publication number: 20150076991
    Abstract: According to an embodiment, a lighting control system includes a smartphone and a lighting control device, and the smartphone includes an illuminance sensor and a wireless communication section. The lighting control device performs dimming control of a plurality of lighting apparatuses that respectively illuminate the plurality of areas, based on detected values of a plurality of areal illuminance sensors, which detect brightness of the plurality of areas, and performs calibration of the areal illuminance sensors, based on a detected value of the illuminance sensor of the smartphone, which is received in a wireless communication device.
    Type: Application
    Filed: March 7, 2014
    Publication date: March 19, 2015
    Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
    Inventors: Hisashi Yamamoto, Hidenori Nishigaki, Sayaka Kikuta, Junko Takahashi
  • Publication number: 20150076992
    Abstract: An imaging sensor determines an influence of artificial light from one or more artificial light sources and an influence of natural light in an area associated with a lighting system. On the basis of the influence of the natural light and the influence of the artificial light, the imaging sensor determines the location of the one or more artificial light sources with respect to the location of the imaging sensor. Further, the imaging sensor allocates a portion of the area as an area of influence of the imaging sensor based on a threshold change in luminescence of the area associated with switching on or switching off of the one or more artificial light sources. Responsively, the imaging sensor associates at least one artificial light source of the one or more light sources and occupancy sensors corresponding to the at least one artificial light source with the allocated area of influence.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventor: Kenneth Dale Walma
  • Publication number: 20150076993
    Abstract: Apparatuses, methods, apparatuses and systems for a light fixture are disclosed. One apparatus of the light fixture includes a sensor unit and a light intensity controller. The sensor unit includes a sensor operative to generate a sense signal base on at least one of sensed motion or light, wireless communication circuitry operative to maintain a link with a network, and a controller. The controller is operative to manage communication with the network, manage transmission of beacons through the wireless communication circuitry, wherein the beacons include information associated with the fixture, and generate dimming control base on at least one of the sensed signal and communication from the network. The light intensity controller is configured to receive the dimming control and operative to adjust an emitted light intensity of a luminaire of the light fixture.
    Type: Application
    Filed: November 21, 2014
    Publication date: March 19, 2015
    Applicant: enLighted, Inc.
    Inventor: Tanuj Mohan
  • Publication number: 20150076994
    Abstract: An interface circuit interfaces a device with a line-pair. The interface circuit includes: a diode bridge having polarity-independent input terminals coupled to the line-pair, and first and second output terminals having a positive polarity and a negative polarity, respectively; a first galvanic isolation device for outputting a receive signal received on the line-pair via the diode bridge; a second galvanic isolation device receiving a transmit signal; a voltage-controlled variable resistance element connected across the positive and negative output terminals of the diode bridge; and first and second filters cascaded between the second galvanic isolation device and the voltage-controlled variable resistance element. The first filter has decoupled charge and discharge paths so as to decouple the rise time and the fall time of the transmit signal. The second filter has a voltage-dependent frequency characteristic.
    Type: Application
    Filed: April 9, 2013
    Publication date: March 19, 2015
    Applicant: Koninklijke Philips N.V.
    Inventor: Stefan-Cristian Rezeanu
  • Publication number: 20150076995
    Abstract: A LED flashing lamp contains: a transparent housing, a cell disposed in the transparent housing, a trigger switch, a photoresistor, a controller, and at least one LED light element. The cell is connected with a power supply end of the controller, the trigger switch has a first end for connecting with a negative electrode of the cell and a second end for coupling with a signal input end of the controller via the photoresistor, the at least one LED light element is in connection with an output end of the controller.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Inventor: Sun-Hsien Chang
  • Publication number: 20150076996
    Abstract: A lighting system has at least one control unit which is designed to transmit control instructions, in particular control instructions corresponding to the DALI and/or DSI standard, to a plurality of operating devices assigned thereto, wherein the control instructions are generated on the basis of control information fed to the control unit. The control unit receives the control information in wireless fashion.
    Type: Application
    Filed: April 10, 2013
    Publication date: March 19, 2015
    Inventor: Daniel Flatz
  • Publication number: 20150076997
    Abstract: A DC-DC converter includes a voltage conversion circuit unit, a control unit, and a capacitor check unit. The voltage conversion circuit unit converts an input voltage to a first voltage. The control unit controls the voltage conversion circuit unit based on a feedback voltage and a reference voltage. The capacitor check unit determines whether a capacitor is coupled to a capacitor coupling terminal based on sensing a voltage of the capacitor coupling terminal, which is selectively coupled to the first control unit.
    Type: Application
    Filed: September 16, 2014
    Publication date: March 19, 2015
    Inventor: Sung-Cheon PARK
  • Publication number: 20150076998
    Abstract: The invention provides a semiconductor device which performs a write operation of a signal current rapidly to a current input type pixel. Before inputting a signal current, a precharge operation is performed by flowing a large current. After that, a signal current is inputted to perform the set operation. A predetermined potential can be obtained rapidly as the precharge operation is performed before the set operation. The predetermined potential is approximately equal to a potential after completing the set operation. Therefore, the set operation can be rapidly performed and a write operation of a signal current can be rapidly performed. By using two transistors, a gate width W can be long or a gate length L can be short in the precharge operation or the gate width W can be short and the gate length L can be long in the set operation.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 19, 2015
    Inventor: Hajime Kimura
  • Publication number: 20150076999
    Abstract: An LED (Light Emitting Diode) controller comprises a first LED driver to generate a first PWM (Pulse Width Modulation) drive signal to turn on or turn off, respectively, a first current through a first LED string. Additionally, the LED controller comprises a compensation circuit to generate the first PWM drive signal responsive to a first duty set signals. The first duty set signal is indicative of a first duty cycle set for the first PWM drive signal. The compensation circuit receives a first feedback signal indicative of the first current, generates a first error signal indicative of a difference between a first predetermined target value and the first feedback signal, and generates the first PWM drive signal to have the first duty cycle corresponding to the first duty set signal and further adjusted by the first error signal.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Inventors: Andrey B. Malinin, Enzhu Liang, Yuwen Wang
  • Publication number: 20150077000
    Abstract: An LED lamp according to one aspect of the present invention including: a first LED array including first LED elements connected in series; a second LED array that includes second LED elements connected in series and emits light having an emission color different from an emission color of the first LED array; a FET switch that is provided between the two LED arrays and switches between a first current path to the first LED array and a second current path to the second LED array; a constant power output circuit that outputs the same power value to a current path through which current flows before the switching and a current path through which current flows after the switching, wherein a total forward voltage of the first LED array is different from a total forward voltage of the second LED array.
    Type: Application
    Filed: August 13, 2014
    Publication date: March 19, 2015
    Inventors: Akira TAKAHASHI, Kazuhiro TAKEDA
  • Publication number: 20150077001
    Abstract: A straight tube LED lamp according to one aspect of the present invention includes: a first LED array including first LED elements connected in series; a second LED array that includes second LED elements connected in series, and emits light having a different emission color from an emission color of the first LED array; a FET switch provided in a path through which current flows to the second LED array; and a constant power output circuit that outputs power without changing a total value of the power, wherein the number of the first LED elements connected in series is greater than the number of the second LED elements connected in series, a total forward voltage of the first LED array is greater than a total forward voltage of the second LED array, and the first LED elements are in alignment with the second LED elements.
    Type: Application
    Filed: August 13, 2014
    Publication date: March 19, 2015
    Inventors: Akira TAKAHASHI, Kazuhiro TAKEDA
  • Publication number: 20150077002
    Abstract: An LED lamp according to one aspect of the present invention includes: a first LED array that is annularly arranged on a mounting board and includes first LED elements connected in series; a second LED array that is arranged within an inner circumference of the first LED array on the mounting board, includes second LED elements connected in series, and emits light having an emission color different from an emission color of the first LED array; a FET switch arranged in series on a path through which current flows to the second LED array; and a constant power output circuit, wherein the number of the first LED elements is greater than the number of the second LED elements, and a total forward voltage of the first LED array is greater than a total forward voltage of the second LED array.
    Type: Application
    Filed: August 13, 2014
    Publication date: March 19, 2015
    Inventors: Akira TAKAHASHI, Kazuhiro TAKEDA
  • Publication number: 20150077003
    Abstract: An LLC resonant transformer (19) for a lamp (5) comprises a primary circuit (19) and a secondary side (30) galvanically isolated therefrom. During operation of the LLC resonant transformer (19), a first switch (21) and a second switch (22) of a half-bridge to which an LLC resonant circuit (25-27) of the primary circuit (19) is connected are actuated in a clocked fashion. A load (5) to which an output (35) on the secondary side (30) supplies energy is detected on the basis of a measured variable (iavg) acquired in the primary circuit (20). The half-bridge (21, 22) is variably controlled on the basis of the measured variable (iavg) that is acquired in the primary circuit (20) and indicates the load (5).
    Type: Application
    Filed: April 15, 2013
    Publication date: March 19, 2015
    Applicant: TRIDONIC GMBH & CO KG
    Inventors: Christoph Vonach, Eduardo Pereira
  • Publication number: 20150077004
    Abstract: A bleeder circuit includes a first resistor, a thermistor, a transistor, a second resistor, and a diode section. The first resistor biases the transistor into an always-on status. The second resistor prevents current from flowing through the thermistor responsive to a voltage at the positive terminal being greater than a minimum forward voltage of a load. The thermistor increases in electrical resistance, limiting the current flowing therethrough and preventing damage to the load responsive to the load short-circuiting.
    Type: Application
    Filed: July 17, 2014
    Publication date: March 19, 2015
    Applicant: LIGHTING SCIENCE GROUP CORPORATION
    Inventors: Yong Jiang, Matthew Montgomery
  • Publication number: 20150077005
    Abstract: An LED bulb is described, comprising LEDs within a shell and a driver circuit to operate the LEDs at a plurality of brightness levels. The driver circuit comprises first and second inputs to receive AC, a neutral input, a converter circuit, first and second rectifier circuits, a detector circuit, and a processing circuit. The first rectifier circuit is connected to the first and neutral inputs and rectifies the AC received. The second rectifier circuit is connected to the second and neutral inputs and rectifies the AC received. The detector circuit is connected to the first and second rectifier circuits. The processing circuit has a first and a second processor input, and is connected to the detector circuit. The processing circuit produces a chop signal with a duty cycle based on whether the first or second input is hot. The converter circuit powers the LEDs based on the chop signal.
    Type: Application
    Filed: November 24, 2014
    Publication date: March 19, 2015
    Inventor: Rolf WENDT
  • Publication number: 20150077006
    Abstract: A two-wire load control device (such as, a dimmer switch) is operable to control the amount of power delivered from an AC power source to an electrical load (such as, a high-efficiency lighting load) and has substantially no minimum load requirement. The dimmer switch includes a bidirectional semiconductor switch, which is operable to be rendered conductive each half-cycle and to remain conductive independent of the magnitude of a load current conducted through semiconductor switch. The dimmer switch comprises a control circuit that conducts a control current through the load in order to generate a gate drive signal for rendering the bidirectional semiconductor switch conductive and non-conductive each half-cycle. The control circuit may provide a constant gate drive to the bidirectional semiconductor switch after the bidirectional semiconductor switch is rendered conductive each half-cycle.
    Type: Application
    Filed: November 25, 2014
    Publication date: March 19, 2015
    Inventor: Robert C. Newman, JR.
  • Publication number: 20150077007
    Abstract: A current regulating LED strobe drive circuit including an energy storage component, a current regulator electrically coupled to the energy storage component for sensing and regulating a current supplied by the energy storage element, a LED electrically coupled to the current regulator, a flash control element electrically coupled to the current regulator for generating a flash pulse signal that dictates a pulsed pattern with which current is allowed to flow from the current regulator to the LED, an output control having an operator interface for allowing an operator to select a desired light output level, wherein the output control is electrically coupled to the current regulator for varying the amount of current supplied to the LED, and an inrush control including a plurality of slow charge circuits, wherein each slow charge circuit is configured to provide a respective peak current for charging the energy storage component.
    Type: Application
    Filed: June 26, 2014
    Publication date: March 19, 2015
    Inventor: Kenneth E. Savage, JR.
  • Publication number: 20150077008
    Abstract: A driving system for a light emitting device includes a data latch unit to store first logic data, a shift register unit to store second logic data, a multiplexer unit to selectively output the first and second logic data, and a driving unit converting the logic data outputted by the multiplexer unit into a driving output that is provided to the light emitting device.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventors: Shun-Yuan HSU, Shun-Ching HSIEH
  • Publication number: 20150077009
    Abstract: Provided is a light-emitting diode driving apparatus including: a rectifying circuit; a switching element; a choke coil; an output current sensing circuit; an LED light source; a rectifier diode; a control circuit; a feedback sensing circuit; an input voltage sensing circuit; and a conduction time counting circuit, wherein the feedback sensing circuit outputs a feedback dummy current to the output current sensing circuit, the conduction time counting circuit adjusts the feedback dummy current, the feedback sensing circuit outputs to the control circuit a control signal which controls switching of the switching element in response to a signal based on an error between an output feedback signal and a feedback dummy signal generated by the feedback dummy current.
    Type: Application
    Filed: November 24, 2014
    Publication date: March 19, 2015
    Inventor: Takashi KUNIMATSU
  • Publication number: 20150077010
    Abstract: Provided is the pixel circuit for active matrix display apparatus and the driving method thereof, which is controlled by digital signal. The pre-charge pixel voltage is controlled and discharged by controlling the resistor and transistors, so that the desired grey scale is generated. The pixel circuit includes: a first switch, a second switch, a third switch, an energy storage device and resistor. By controlling the third switch, the first end of the energy storage device is charged to the voltage of the second source. The first switch and the second switch are controlled to switch on, so that the first end of the energy storage device discharging to the first source. The second switch switches off when the first end of the energy storage device reaches the desired pixel voltage.
    Type: Application
    Filed: April 30, 2014
    Publication date: March 19, 2015
    Applicant: National Chiao Tung University
    Inventors: Ya-Hsiang TAI, Lu-Sheng CHOU, Chun-Yu LIN, Chia-Hung CHANG
  • Publication number: 20150077011
    Abstract: An illumination system includes an input interface, a phase angle control module, a lamp, and a driving module. The input interface is controllably switched between a first state and a second state. The phase angle control module is electrically connected to an AC power source and the input interface. When the input interface is at the first state, the phase angle control module modifies a voltage waveform of the AC power source to generate a delayed conduction angle in a half wave period of the voltage waveform. The driving module is stored with a control mode, wherein the driving module switches the control mode to control the lamp to emit light in accordance with the delayed conduction angle.
    Type: Application
    Filed: July 30, 2014
    Publication date: March 19, 2015
    Inventor: Ming-Feng LIN
  • Publication number: 20150077012
    Abstract: A method of controlling multiple lamps is applied to an illumination system, which includes an input interface, a signal transmitter, a plurality of signal receivers, a plurality of driving devices, and a plurality of lamps. The method includes the following steps: detect a state of the input interface with the signal transmitter; transmits a corresponding signal with the signal transmitter; each of the signal receivers receives the signal and detects a waveform of an AC power source, and each of the signal receivers transmits a corresponding control signal to the corresponding driving device to control the corresponding lamp at a reference point in the following cycle of the waveform of the AC power source.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 19, 2015
    Inventor: Ming-Feng LIN
  • Publication number: 20150077013
    Abstract: A ballast lead wire configuration includes a ballast having a pair of power inputs and a pair of power outputs. A primary lamp is electrically connected to the ballast. A first primary lamp ballast terminal is formed on the primary lamp and electrically connected to the ballast. A second primary lamp ballast terminal is formed on the primary lamp and electrically connected to the ballast. A second lamp electrically connected to the ballast, and the second lamp is electrically connected to the first lamp in series. A first secondary lamp ballast terminal is formed on the secondary lamp and electrically connected to the ballast. A second secondary lamp ballast terminal is formed on the secondary lamp and electrically connected to the ballast. The first lamp and the second lamp are florescent lamps over 36 inches long.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Inventor: Kevin Yang
  • Publication number: 20150077014
    Abstract: Various implementations include circuits, devices and/or methods that enable the repeated generation of controlled surges with lower risk of component failure. Some implementations include a discharge control assembly including a discharge circuit and a controller. In some implementations, the discharge circuit is selectively connectable to a driver circuit, and the discharge circuit is configured to provide a dominant discharge path for the driver circuit when the driver circuit is effectively decoupled from a first load in order to decay an electrical condition of the driver circuit produced prior to the driver circuit being effectively decoupled from the first load. In some implementations, the controller is configured to selectively connect the driver circuit to a combination of the discharge circuit and the first load, and in at least one combination the discharge circuit is effectively coupled to the driver circuit when the first load is effectively decoupled from the driver circuit.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 19, 2015
    Inventors: Wendy Ng, George A. Hariman