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18th week of 2009 patent applcation highlights part 19
Patent application numberTitlePublished
20090108672COMBINATION REGENERATIVE AND FRICTION BRAKING SYSTEM FOR AUTOMOTIVE VEHICLE - A combination regenerative and friction braking system for an automotive vehicle includes an active booster master cylinder and a number of wheel cylinders connected to the master cylinder. A brake control unit is connected with brake pipes extending from the master cylinder to the wheel cylinders. At least one pressure reducing valve is positioned in one of the brake pipes so as to allow the active booster master cylinder to actuate selective ones of the wheel cylinders during regenerative braking without activating wheel cylinders servicing wheels which are being braked regeneratively.2009-04-30
20090108673METHOD FOR DETERMINING A VOLTAGE LEVEL ACROSS AN ELECTRIC CIRCUIT OF A POWERTRAIN - A method for determining a voltage level across an electrical circuit of a powertrain includes measuring a plurality of voltage levels and utilizing a comparison test between at least two voltage levels of the plurality of voltage levels to determine the circuit voltage level.2009-04-30
20090108674Power Supply Control Device and Method of Detecting Abnormality of Relay - When an ignition key is turn ON, an ECU drives a bidirectional DC/DC converter to charge a capacitor to a voltage Vth2009-04-30
20090108675Threshold voltage control circuit and internal voltage generation circuit having the same - A threshold voltage control circuit includes a first voltage supplying unit for supplying a first power supply voltage, in response to an enable signal which is activated when a bank is enabled, as a back bias voltage of a first MOS transistor, wherein the first MOS transistor drives an internal voltage, and a second voltage supplying unit for supplying a second power supply voltage, in response to the enable signal, as the back bias voltage of the first MOS transistor.2009-04-30
20090108676Power system with method for adding multiple generator sets - A method of operating a power system is provided. The power system has a plurality of generator sets and a bus. The method monitors the bus and generator sets disconnected from the bus. The method supplies to a control device information associated with the operating state of each of the generator sets and the bus. The method determines a relative frequency mismatch and a relative phase mismatch between the frequency and phase of the bus and a generator, and generates a frequency speed bias and a phase speed bias for the generator. The method adds the frequency and phase speed biases to form a total speed bias, tunes the total speed bias to make the frequency and phase speed biases combine in a complementary manner, and connects the generator to the bus when the voltage, frequency, and phase of the generator are within a permissible range of the bus.2009-04-30
20090108677Bidirectional power converters - Circuits and methods for bidirectional power conversion are provided that allow mobile and other devices to generate power suitable to support multiple modes of operation. The bidirectional power converters of the present invention may operate in both step up and step down configurations rather than having a single dedicated conversion function and use many of the same components thereby reducing converter size and complexity.2009-04-30
20090108678Power system with method for adding multiple generator sets - A method of operating a power system is provided. The power system has a plurality of generator sets and a bus. The method monitors the bus and generator sets disconnected from the bus. The method supplies to a control device information associated with the operating state of each of the generator sets and the bus. The method determines a relative frequency mismatch, multiplied by a first weight factor, and a relative phase mismatch, multiplied by a second weight factor, between the frequency and phase of the bus and a generator, and generates a frequency speed bias and a phase speed bias for the generator. The method adds the frequency and phase speed biases to form a total speed bias and connects the generator to the bus when the voltage, frequency, and phase of the generator are within a permissible range of the bus.2009-04-30
20090108679WIRELESS ENERGY TRANSFER - Method for wireless energy transfer is disclosed. According to an embodiment, the method includes transferring electrical energy from one electronic device to another electronic device with the help of electromagnetic waves. An electronic device that requires electrical energy can get energy transferred from one or more other electronic devices present in its vicinity. The electrical energy being transferred can be used to charge the battery of the electronic device.2009-04-30
20090108680REMOTE POWER CONTROL SYSTEM AND POWER SUPPLY TAP - According to one embodiment, a power supply tap includes a first wireless reception module which receives a control request which is transmitted from a remote-control terminal by a first wireless signal, a power observation module which is activated in a case where the received control request includes a power information acquisition request, and observes a total amount of power including power supplied to an electric apparatus from a power output module and power consumed by a communication control module, a first wireless transmission module which transmits the observed total amount of power to the remote-control terminal by a second wireless signal, and a switch control module which turns off a switch in a case where the control request received by the first wireless reception module includes a power-off request, thereby shutting off power supply to the electric apparatus from the power output module.2009-04-30
20090108681Automatic Power Source Configuration - A circuit to supply power to a detachable load incorporates a power source, a power converter and an array of capacitors. Upon connection of the detachable load, the capacitors of the array of capacitors are automatically configured into a desired series, parallel or combination series and parallel configuration of interconnections to accommodate limitations in the voltage ranges of the capacitors in being coupled to the load and/or to achieve other desired characteristics of electrical power to be provided to the load. Further, upon connection of the detachable load, a limit on current flow imposed by the power converter may be set to a desired level to achieve desired characteristics of electrical power to be provided to the load and/or desired characteristics of charging and discharging behaviors of the array of capacitors.2009-04-30
20090108682Device and method for simulation of magnetohydrodynamics - A magnetohydrodynamic simulator that includes a plasma container. The magnetohydrodynamic simulator also includes an first ionizable gas substantially contained within the plasma container. In addition, the magnetohydrodynamic simulator also includes a first loop positioned adjacent to the plasma container, wherein the first loop includes a gap, a first electrical connection on a first side of the gap, a second electrical connection of a second side of the gap, and a first material having at least one of low magnetic susceptibility and high conductivity. The first loop can be made up from an assembly of one or a plethora or wire loop coils. In such cases, electrical connection is made through the ends of the coil wires. The magnetohydrodynamic simulator further includes an electrically conductive first coil wound about the plasma container and through the first loop.2009-04-30
20090108683OBJECTIVE LENS DRIVE AND OPTICAL PICKUP APPARATUS - An objective lens drive and an optical pickup apparatus are provided which can be reduced in size. Two tilt coils and two tracking coils are disposed so that among planes defined by the respective coils, a plane perpendicular to a winding direction thereof is parallel to a reference plane defined on a lens holder at a predetermined reference distance or less, and are disposed at such positions as to be symmetrical to each other about a center of gravity of the lens holder. A focus coil is disposed so that among planes defined by the focus coil, a plane perpendicular to a recording surface of an optical disk is parallel to the reference plane at a predetermined reference distance or less relative to the two tilt coils and the two tracking coils.2009-04-30
20090108684Rotary switching mechanism - A switching system includes two or more rotary switching mechanisms for selectively moving items. The switching system may be used for switching optical elements, such as filters, into and out of an optical path, for example selectively placing one of a group of available filters into the optical path. Each of the rotary switching mechanisms has a passive torque device, including a mechanical flexure and a magnetic latch, that provides most of the torque for moving an item between a retracted position and an extended position, and vice versa. The passive torque device has a pair of null positions or detents at the retracted and extended positions. A brushless DC motor is used to provide a force to get the passive torque device out of these null positions. Thereafter the passive torque device is able on its own to provide most of the torque for movement.2009-04-30
20090108685Electronically Commutated Motor Control Retention Apparatus - An electric motor assembly includes a motor housing having a main body portion with a central plane bisecting the main body portion into an upper portion and a lower portion. The motor housing further includes a first printed circuit board support structure having a plurality of slots and a second printed circuit board support structure having a top surface that is orientationally above at least a portion of the plurality of slots. The motor assembly further includes a printed circuit board having tabs which are configured and arranged to operably coordinate with the plurality of slots to thereby removably retain the printed circuit board at the motor housing and in contact with the top surface of the second printed circuit board support structure.2009-04-30
20090108686ROTOR OF BRUSHLESS (BL) MOTOR - The present invention provides a rotor of a brushless (BL) motor, including: a high-strength engineering plastic member formed by injection-molding high-strength engineering plastic around a concavo-convex portion 2009-04-30
20090108687Feeder line drawing structure of motor for ship propeller - In a feeder line drawing structure of a motor for a ship propeller, a guide portion detachably retaining a feeder line drawn out from a grommet in a drawing direction is provided in a lower end side of a housing in accordance with an integral molding.2009-04-30
20090108688CONNECTING STRUCTURE FOR CONNECTING ELECTRICAL APPARATUS AND FEEDER TERMINAL PORTION, AND VEHICLE - A bus bar (2009-04-30
20090108689 ELECTRO-MECHANICAL ACTUATOR, AND A HIGH OR MEDIUM VOLTAGE DISCONNECTOR HAVING SUCH AN ACTUATOR - An electro-mechanical actuator having means for transmitting motion, in the final part of a stroke performed by a system comprising a worm shaft and rider nut coupled through gearing with an electric motor, to an auxiliary interrupter for breaking the power supply to the motor. Two control levers are provided, these being coupled together, and being rotated, about a perpendicular axis, by a cursor which is fixed to the nut that slides on the worm shaft. The pivoting of the said levers is blocked during the movement of the drive shaft driven by the system consisting of the worm shaft and nut. By contrast, the levers pivot during the final part of the movement of the cursor. The distance through which the levers move in pivoting is large enough to avoid any need for the auxiliary interrupter to be a high precision component.2009-04-30
20090108690APPARATUS FOR THE VENTILATON OF A ROTOR HUB OF A WIND ENERGY PLANT - Apparatus for the ventilation of a rotor hub of a wind energy plant, with a cup-shaped ventilation cap, which has a circumferential side wall and a base portion, wherein the side wall has at least one bore for draining water and the base portion has at least one bore for ventilation, a pipe-shaped connection piece, which has an air entrance opening which runs out into an interior space of the rotor hub, wherein the ventilation cap is arranged before the air entrance opening and the at least one bore for ventilation is arranged in the ventilation cap outside of the air entrance opening of the pipe-shaped connection piece such that the air entrance opening is covered up by the ventilation cap.2009-04-30
20090108691HYDRODYNAMIC BEARING DEVICE, MOTOR AND INFORMATION RECORDING AND REPRODUCING APPARATUS IN WHICH SAME IS USED, AND METHOD FOR MANUFACTURING SHAFT USED IN HYDRODYNAMIC BEARING DEVICE - A hydrodynamic bearing device is provided for a spindle motor used in a hard disk drive or the like with a good state of fastening and good fastening strength between a shaft and a fixed member. The hydrodynamic bearing device includes a shaft that has a cylindrical main shaft portion and a fixing portion provided at one end of the main shaft portion, a sleeve that has a bearing hole in which the main shaft portion is inserted in a rotatable state, and a fixed member that is fixed to the fixing portion of the shaft. A nitride layer is formed on the main shaft portion, and a nitride layer non-forming film is formed on the fixing portion.2009-04-30
20090108692Laying Head with a Vibration Damping Device - A laying head for forming coils using continuous and substantially rectilinear rolled products such as rods or wire, having vibration damping means integrated in one of two rotor supports (2009-04-30
20090108693MOTOR AND WASHING MACHINE USING THE SAME - Disclosed is a motor which includes a stator including a plurality of aluminum coils and a rotor. The rotor includes a frame including a magnetic material, and a permanent magnet attached to the frame. The permanent magnet is made of neodymium.2009-04-30
20090108694ROTOR AND PUMP - A rotor for being used in a motor is provided with a shaft, a yoke attached to the shaft, a magnet attached to the yoke, and an elastic member attached to at least one of the shaft and the yoke. The elastic member forces the magnet towards the yoke along an axial direction of the shaft.2009-04-30
20090108695Symmetrical Coil Electric Motor - An electric motor includes symmetrical elliptical coils on the inner surface of the motor stator. The coils are formed of a conductive material having a rectangular cross section and the long axis of the coils is parallel to the longitudinal axis of the stator. Within the stator and coils is arranged a rotor coaxial with the stator and having permanent magnets connected with the rotor exterior surface. The symmetrical coils produce increased magnetic flux when energized as compared to random windings on a stator energized with the same current level to increase the torque produced by and the efficiency of the motor.2009-04-30
20090108696INTERPHASE INSULATING SHEET OF ROTATING ELECTRIC MACHINE, AND ELECTRIC COMPRESSOR - An interphase insulating sheet of a rotating electric machine is disclosed. The interphase insulating sheet includes a first insulating portion arranged between first coil ends of two different phases, a second insulating portion arranged between second coil ends of two different phases, and bridge pieces inserted in slots. The first insulating portion includes a first coupling aid. The second insulating portion includes a second coupling aid. The first coupling aid and the second coupling aid each includes an outer surface facing radially outward of the stator core and an inner surface facing radially inward of the stator core. The first end portion of the bridge piece is located on the outer surface of the first coupling aid, and the second end portion of the bridge piece is located on the inner surface of the second coupling aid.2009-04-30
20090108697METHOD OF FIXING A STATOR CORE AND AN ELECTRIC COMPRESSOR - A method of fixing a stator core in a cylindrical housing includes the following steps. The first step is a step of blanking a plurality of stator core sheets from an electromagnetic steel sheet by using a die. The die has a circular outside contour for blanking the stator core sheets from the electromagnetic steel sheet and each of the blanked stator core sheets has an outside contour. The second step is a step of forming the stator core by laminating the blanked stator core sheets one on another. The third step is a step of setting a non-fixing position of the stator core to the housing in such an angular position where difference in diametral dimension of the outside contour between the die and the stator core is relatively large.2009-04-30
20090108698ELECTRIC MOTOR COMMUTATOR - A commutator 2009-04-30
20090108699Three-Phase Square-Wave Permanent Magnet Brushless DC Motor - This invention relates to a three-phase square-wave permanent magnet brushless DC motor for solving problems of the existing square-wave permanent Magnet Motor and sine-wave permanent magnet motor. In this invention, the number 2P of magnetic poles on the said rotor core is 8; the slot number Z of the said stator core is 12, accordingly there are 12 teeth, including three big teeth, three medium teeth and six small teeth; the ratio of their mechanical angles is 50° (±5°) for big teeth: 40° (±5°) for medium teeth: 15° (±5°) for small teeth, and the sum of the mechanical angles of one big tooth, one medium tooth and two small teeth must be 120°. Three-phase concentrated windings are respectively wound on the big teeth and the medium teeth, in which there are only two concentrated windings for each phase, thus there are only 6 concentrated windings for the three-phase motor. With driven by three-phase square-wave current, the said motor can produce a smooth torque which ripple index corresponds to that of the sine-wave permanent magnet servo motor, at the same time, it also has a plurality of advantages including windings end minimization, air-gap minimization, material minimization, cogging torque minimization and loss minimization and so on.2009-04-30
20090108700MOTOR - A motor includes a stator, a case and a supporting portion. The stator formed by laminating plural disc plates includes a yoke portion having a plurality of first and second portions alternately formed in a circumferential direction of the stator, and plural tooth portions respectively radially protruding from an inner circumferential surface the yoke portion at the second portion of the yoke portion towards an axial center of the stator. The case provided at an outer circumference of the stator includes a first communicating passage extending in an axial direction of the stator to be in communication with both axial ends of the stator and defined by an inner circumferential surface of the case. The supporting portion protrudes from an inner circumferential surface of the first communicating passage towards the stator and contacts an outer surface of the stator at one of the first portions of the stator.2009-04-30
20090108701MOTOR AND DRIVING DEVICE - A magnetic-pole portion can be formed by thread cutting, whereby a motor can be provided at lower cost as compared to a case where the magnetic-pole portion is formed by press-working.2009-04-30
20090108702LAMINATION HAVING TAPERED TOOTH GEOMETRY WHICH IS SUITABLE FOR USE IN ELECTRIC MOTOR - An electric motor has a stator, and a rotor disposed within the stator. The stator has a set of stator laminations and a set of windings held in position by the set of stator laminations. The rotor is arranged to rotate about an axis. The set of stator laminations is arranged into a stack. Each stator lamination includes an outer section, and a set of teeth coupled to the outer section. Each tooth of the set of teeth extends from that outer section toward the axis. Each tooth has (i) a first end which is proximate to the outer section and distal to the axis, and (ii) a second end which is proximate to the axis and distal to the outer section. A width of the first end of each tooth is substantially greater than a width of the second end of each tooth.2009-04-30
20090108703ROTARY APPARATUS - A rotary apparatus, in which a rotor can rotate stably when it rotates at a high speed, can rotate at a relatively high speed by the torque of a highly reliable induction motor. The rotary apparatus comprises a rotor shaft and an induction motor. The induction motor includes a motor rotor core fixed to the rotor shaft, conductors disposed in the motor rotor core and a motor end ring for assembling and connecting the conductors, and can rotate the rotor shaft at a high speed by the torque. The rotor shaft is provided with a member that covers the motor end ring.2009-04-30
20090108704APPARATUS FOR THERMOMECHANICAL DECOUPLING OF THE HOUSING AND STATIONARY PART OF A ROTATING MACHINE - An apparatus is described for thermomechanical decoupling of the housing and stationary part of a rotating machine, in particular of a dynamoelectric machine. The apparatus has at least one rotating shell, and in that this apparatus can on the one hand be attached to the housing and on the other hand to the stationary part, such that the rotating shell extends in the axial direction even in the mounted state. This results in centred bearing, which is stiff against lateral movement of the stationary part, in particular of the laminated core, while providing little impediment to the thermal growth of the stationary part.2009-04-30
20090108705Bio-electromechanical device - Bio-electromechanical device capable to convert electrochemical potential energy stored in a both animal or plant cellular system to mechanical energy. This bio-electromechanical device has sizes varying in the order of microns, with maximum electric voltages near 100 mV, currents in the order of nA and associated power in the order of 102009-04-30
20090108706FERROELECTRIC OXIDE, PROCESS FOR PRODUCING THE SAME, PIEZOELECTRIC BODY, AND PIEZOELECTRIC DEVICE - A composition of a ferroelectric oxide represented by General Formula (a) is adjusted such that the most stable crystal structures X and Y of ACO2009-04-30
20090108707Actuating device having an integrated electronic control circuit - An actuating device including a load and an integrated electronic control circuit comprising a microcontroller and at least one passive component. The microcontroller performs the dual function of providing a control signal to generate sufficient power to actuate a load and a drive signal to drive the load.2009-04-30
20090108708MICROMACHINED PIEZOELECTRIC ULTRASOUND TRANSDUCER ARRAYS - A piezoelectric composite micromachined ultrasound transducer including single and multilayer 1-D and 2-D arrays having through-wafer-vias (TWVs) that significantly decreased electrical impedance per element, and hence the improved electrical impedance matching to T/R electronics and improved signal to noise ratio is disclosed. The TWVs facilitate integrated interconnection in single element transducers (positive and negative contact on the same side) and array transducers (contact pads array for integration with T/R switches and/or pre-amplifier circuits).2009-04-30
20090108709PIEZOELECTRIC DEVICE - [Problem] To provide a piezoelectric device with which it is possible to prevent a brazing material from attaching to a vibrating area, prevent solder eating, and to thereby obtain excellent vibration characteristics.2009-04-30
20090108710High Frequency Piezocomposite And Methods For Manufacturing Same - A transducer with triangular cross-sectional shaped pillars is described for suppressing lateral modes within a composite, and a method for producing the same. According to one aspect of the present application, a plurality of triangular cross-sectional shaped pillars extends outwardly from a substrate and form an array of pillars. The resulting array of pillars is configured to suppress the lateral modes of the transducer at higher operating frequencies, such as, at or above 15 MHz, at or above 20 MHz, or at or above 30 MHz.2009-04-30
20090108711HYBRID STEPPING MOTOR HAVING HIGH TORQUE DENSITY - There is provided a hybrid stepping motor comprising the following: a first rotor yoke and a second rotor yoke, each of the rotor yokes having a plurality of rotor teeth on a periphery thereof; a rotating shaft located between the first and second rotor yokes and supporting the first and second rotor yokes on a same axis, the rotating shaft including at least one permanent magnet magnetized in a direction of the axis; and a plurality of stator yokes, each of the stator yokes having a core portion, a coil wound around the core portion, and a plurality of stator teeth extending parallel to the axis from opposed end portions of the core portion, the stator yokes being disposed at regular intervals around the rotating shaft so that a constant air gap is maintained between radially inward surfaces of the stator teeth and radial end surfaces of the rotor teeth. A positive current is applied to the opposed and paired coils of said coils and a negative current is applied to the rest coils of said coils. The positive current and the negative current are applied at the same time and magnitude.2009-04-30
20090108712SHORT-FLUX PATH MOTORS / GENERATORS - According to one embodiment of the present invention, an electric machine includes a stator and a rotor. The stator includes a stator pole including a first leg and a second leg, and a gap defined between the first and second legs. The rotor includes a rotor pole. The rotor is configured to rotate relative to the stator such that the rotor pole rotates through the gap defined between the first and second legs of the stator pole. The stator pole includes a laminar stator pole structure including multiple lamination layers.2009-04-30
20090108713Outer Rotor Type Hybrid Stepping Motor - An outer rotor type hybrid stepping motor includes a stator, a rotor, a magnet disposed axially in the stator or the rotor, a stator core disposed inwardly from a gap between the stator and rotor, and a stator winding on the stator core. The rotor is disposed outside the gap. The magnet has an axial cross sectional area A. The residual magnetic flux density of the magnet is Br, and a total of magnetic fluxes exiting axially from the surface is A×Br. A gap average magnetic flux density, determined by dividing A×Br by the top cross sectional area small teeth poles on the rotor is Bg; pitch of the teeth is τ; and tooth width is Tw. Average magnetic flux density Bg, tooth pitch τ, and tooth width Tw are determined by the equation K=1/(π×Bg×Tw/τ), with the coefficient k in a range of 0.56-0.66 (1/T).2009-04-30
20090108714BEARING AND COVER ASSEMBLY FOR A ROTATING ELECTRICAL MACHINE AND A ROTATING ELECTRICAL MACHINE CONTAINING SUCH AN ASSEMBLY - Protective bearing and cover assembly, for an internally ventilated rotating electrical machine, has centrally an axially orientated axis and comprises on the one hand at least one electronic component carried by the bearing and protected by the cover having at least one radial opening for the passage of air, at least one axial opening for the entry of air, a generally axially orientated skirt and a generally transversely orientated base part, in which is located the axial air inlet opening, which is offset axially in relation to the radial opening for the passage of air, and on the other at least one shaft for the cooling of the generally axially orientated electronic component ; the radial opening for the passage of air constitutes the outlet of the cooling shaft whereas the skirt constitutes one of the internal and upper walls of the cooling shaft. The rotating electrical machine consists of an alternator or a starter-alternator or an alterno-starter comprising such an assembly.2009-04-30
20090108715DEVICE FOR COOLING AN ELECTRICAL MACHINE AND ELECTRICAL MACHINE HAVING SUCH A COOLING DEVICE - The invention relates to a device (2009-04-30
20090108716BRUSHLESS MOTOR AND COOLING FAN - A rotor unit of a brushless motor includes a substantially cylindrical rotor magnet and a rotor holder arranged to retain an outer circumferential portion of the rotor magnet. A stator unit of the same includes a stator core around which coils are wound and a Hall IC for sensing magnetic flux generated from the rotor magnet. The stator core includes teeth disposed at positions separated in the circumferential direction, each of which has an arm portion extending outward in the radial direction around which the coil is wound, and a stretching portion extending from the arm portion outward in the radial direction and in the circumferential direction on both sides. A sensor element included in the Hall IC is positioned in the range within a lead angle of about four degrees or less as a mechanical angle in the circumferential direction from a line connecting radially the central axis and a point bisecting a line connecting neighboring stretching portions, and within a distance of about one millimeter or smaller outward in the radial direction from an arc connecting outer edges of the neighboring stretching portions.2009-04-30
20090108717Outdoor unit of air conditioner - An outdoor unit of an air conditioner is provided. The outdoor unit includes a base assembly defining a lower exterior of the outdoor unit and supporting a plurality of parts, left and right panels that are provided on the base assembly to define left and right exteriors of the outdoor unit, a pair of top panels that are provided between upper ends of the left and right panels to define a top exterior of the outdoor unit, a blower assembly including a blower fan generating air current and a motor providing a torque to the blower fan, a frame assembly supporting the blower assembly and including a pair of transverse supports interconnecting the left and right panels and a motor mount disposed between the pair of transverse supports to support the motor, and a shroud enclosing the blower fan and the motor and guiding airflow generated by the blower fan. The motor mount is received to an inside of the shroud.2009-04-30
20090108718KITCHEN UNIT ARRANGEMENT - A kitchen unit arrangement (2009-04-30
20090108719Apparatus and method for attaching a backsplash to a countertop - A serpentine clip attaches a backsplash to a countertop. The clip has a first arm that engages a slot in the rear edge of the countertop and a second arm that engages a slot in the backsplash. Each arm preferably includes barbs that securely retain the arms in the slots.2009-04-30
20090108720Surge protector and excess cord organizer - The technical disclosure of this invention (the Electrical Cabinet with Cord Board) is a particular way to use already existing equipment for the purpose of safely holding and hiding an operational surge protector and all of the excess cords from view. Specifically, the Cord Board provides space to mount a surge protector and up to ten (10) sets of Cord Hooks on which excess household or office cords can be wrapped and hidden from view.2009-04-30
20090108721Back Plate of Backlight Module and Manufacturing Method Thereof - A back plate includes an inner part, a bottom part, an outer part, a folded part and a fastener. The bottom part is connected to the inner part for providing a container space. The outer part is opposite the inner part. The folded part is connected with the outer part and the inner part. The fastener is disposed on the outer part. A method for manufacturing the back plate is also disclosed herein.2009-04-30
20090108722Under-Cabinet Tray - A storage unit for storing a number of items in an elevated space saving and easily accessible manner is provided that includes a cover slidably mounted to a storage container containing a number of storage chambers therein. The cover includes a number of adhesive securing means attached thereto that enable the cover to be fixedly secured to the underside of an elevated support structure, such as a cabinet in a kitchen. The storage container is slidably mounted to the cover such that the container can be moved from a closed position to an open position with regard to the cover in order for an individual to gain access to items contained within the storage container.2009-04-30
20090108723HOLDER - A holder for holding an object in a storage position against the underside of a shelf that includes an upper arm adapted to engage an upper surface of the shelf and a lower arm maintained in spaced-apart relation to the upper arm by a body for engaging and supporting the object against the underside of the shelf. The space between the upper and lower arm is predetermined to be approximately equal to the combined thickness of the shelf and the object.2009-04-30
20090108724REFRIGERATOR CABLE EJECTION METHOD - Disclosed herein is a refrigerator cable ejection method that is capable of more easily ejecting a cable distributed in a refrigerator outside the refrigerator at the time of manufacturing the refrigerator. The refrigerator cable ejection method is used to eject one end of a cable out of an outer liner through an ejection hole formed at the outer liner before a filling space is filled with a foam insulation material in a refrigerator constructed in a structure in which the outer liner is fitted outside an inner liner, the cable is distributed in the filling space defined between the inner liner and the outer liner, and the filling space is filled with a foam insulation material while the cable is distributed in the filling space. The refrigerator cable ejection method is performed to eject one end of the cable out of the outer liner through the ejection hole at the time of fitting the outer liner outside the inner liner using an ejector including a pass-through member mounted outside the inner liner corresponding to the ejection hole such that the cable passes through the pass-through member and a guide member constructed in a hollow structure to receive the cable, passing through the pass-through member, the guide member being detachably coupled to the pass-through member such that the guide member is ejected out of the outer liner together with the cable received in the guide member through the ejection hole at the time of fitting the outer liner outside the inner liner, and, subsequently, the guide member is separated from the pass-through member.2009-04-30
20090108725Three-Electrode Surface Discharge Display - A three-electrode surface discharge display (2009-04-30
20090108726INFRARED LIGHT SOURCE - An infrared light source has a filament fabricated on a first substrate in the shape of a microbridge and energizes the filament so as to generate heat, thereby causing the filament to emit infrared radiation. The infrared light source has a second substrate that is bonded to the first substrate and seals the filament, and feedthrough electrodes that lead electrodes of the filament to the outside of the first substrate. Thereby, the function of the package is imparted to the device itself, to thus realize a highly-reliable device at low cost.2009-04-30
20090108727ELECTRON-EMITTING DEVICE, ELECTRON SOURCE, IMAGE DISPLAY APPARATUS, AND MANUFACTURING METHOD OF ELECTRON-EMITTING DEVICE - An electron-emitting device according to the present invention is characterized by that a gate electrode is located above a cathode electrode; a insulating member is located between the gate electrode and the cathode electrode; and the gate electrode and the insulating member are provided with openings, respectively, the openings being communicated with each other, wherein the insulating member is formed by layering three or more insulating layers including a first insulating layer, which is brought in contact with the gate electrode and has an opening, of which size is approximately the same as the size of the opening of the gate electrode; and a second insulating layer, which is located nearer to the side of the cathode electrode than the first insulating layer and has a larger opening than the opening of the gate electrode.2009-04-30
20090108728Display unit manufacturing method and display unit - According to an aspect of an embodiment, a display unit manufacturing method for manufacturing a display unit, the method includes: forming a first resin film having a first electrode terminal and a first conductive film on one of surfaces of the first resin film, forming a second resin film having a second electrode terminal and a second conductive film on one of surfaces of the second resin film, arranging a display element on the first conductive film of the first resin film, arranging the second conductive film of the second resin film to the display element, forming a groove on another surface of the second resin film adjacent to the first electrode terminal, and tearing off a part of the second resin film along the groove so as to expose at least a part of the first electrode terminal.2009-04-30
20090108729Magnetic Field Compensation Apparatus for Cathode Ray Tube - A cathode ray tube (CRT) having a glass envelope is disclosed. The glass envelope is formed of a rectangular faceplate panel and a tubular neck connected thereto by a funnel. An electron gun is positioned in the neck for directing electron beams toward the faceplate panel. A yoke is positioned in the neighborhood of the funnel-to-neck junction. The yoke has windings configured to apply a horizontal deflection yoke field and a vertical deflection yoke field to the beams. At least one magnetic field sensor is located near the glass envelope for sensing an ambient magnetic field environment of the CRT. A controller receives a signal from the magnetic field sensor. Register correction coils are mounted in the vicinity of the neck and are dynamically controlled by the controller to shift the beams. Quadrupole coils are applied to the neck and have adjacent poles of alternating polarity such that the resultant magnetic field being dynamically controlled by the controller based on the magnetic field sensor signal moves outer ones of the beams to correct the misconvergence caused by the register correction.2009-04-30
20090108730Plasma Display Panel - The provided is a plasma display panel (PDP) for inducing initial discharge as short-gap discharge to prevent an increase of a discharge firing voltage, suppressing the short-gap discharge after the initial discharge, and inducing full discharge as long-gap discharge to improve luminous efficiency. The PDP includes a first substrate, a second substrate, a barrier rib, a phosphor layer, address electrodes, first and second electrodes, a dielectric layer, and a protective layer. The first and second electrodes extend in the second direction, and form a first discharge gap therebetween. The dielectric layer is formed on the second substrate while covering the first and second electrodes. The protective layer covers the dielectric layer. The protective layer includes a first secondary electron emission portion and a second secondary electron emission portion. The first secondary electron emission portion is formed to correspond to an outer remote part of the first and second electrodes and has a first secondary electron emission coefficient. The second secondary electron emission portion is formed to correspond to an outer close part of one of the first and second electrodes, and has a second secondary electron emission that is smaller than the first secondary electron emission coefficient.2009-04-30
20090108731ELECTRODE FOR COLD-CATHODE FLUORESCENT LAMP - A cold-cathode fluorescent lamp having high brightness with long life and an electrode for this lamp are offered. At least one part of the electrode surface is formed by using one material selected from the group consisting of rhodium, palladium, and alloys of these. For example, a surface layer made of the foregoing material is formed on a base. To increase the bonding strength between the surface layer and the base, a bonding layer made of gold or gold alloy is formed on the base. Because a metal such as rhodium is resistant to alloying with mercury and has a high melting point, a cold-cathode fluorescent lamp provided with an electrode made of the foregoing metal can suppress not only the consumption of the mercury due to the formation of an amalgam but also the reduction in brightness due to insufficient discharging. Furthermore, because the lamp can suppress the consumption of the mercury and electrode, the lamp has long life.2009-04-30
20090108732White phosphor, and white light-emitting equipment of device - A white phosphor is provided, which is a white phosphor comprising a single material, wherein the light-emitting center is one element other than Mn, and emitting white light having excellent color rendering properties by near ultraviolet excitation. The white phosphor is represented by the formula Sr2009-04-30
20090108733Precursors of Organometallic Compounds for Electroluminescent Materials - The present invention relates to a precursor of metallic complex for electroluminescent material, a luminescent material comprised of said precursor of metallic complex and metal, and an electroluminescent device containing a luminescent material comprised of said precursor and metal. The luminescent material comprised of the precursor according to the present invention and metal is advantageous in that it shows excellent electric conductivity and light emitting property of high efficiency.2009-04-30
20090108734OLED DEVICE WITH CERTAIN FLUORANTHENE LIGHT-EMITTING DOPANTS - The invention provides an OLED device comprising a cathode, an anode, and having therebetween a light emitting layer and an electron transporting layer, 2009-04-30
20090108735OLED DEVICE WITH FLUORANTHENE ELECTRON TRANSPORT MATERIALS - The invention provides an OLED device comprising a cathode, an anode, and having there between a light-emitting layer, further comprising, between the cathode and the light emitting layer, a non-luminescent electron transporting layer containing a compound with a 7,10-diaryl substituted fluoranthene nucleus having no aromatic rings annulated to the fluoranthene nucleus and desirably comprises still further an additional layer containing an organic alkali metal compound, located between the cathode and the electron transporting layer.2009-04-30
20090108736PHOSPHORESCENT OLED DEVICE WITH CERTAIN FLUORANTHENE HOST - An OLED device comprising a cathode, an anode, and having there between a red light emitting layer containing a non-light-emitting fluoranthene compound with a 7,10-diaryl substituted fluoranthene nucleus having no aromatic rings annulated to the fluoranthene nucleus, and a red light-emitting phosphorescent dopant.2009-04-30
20090108737LIGHT-EMITTING ORGANOMETALLIC COMPLEXES - Phosphorescent materials and devices with improved device manufacturing, fabrication, stability, efficiency, and/or color.2009-04-30
20090108738ORGANIC LIGHT EMITTING DISPLAY - An organic light emitting display. The organic light emitting display includes a display unit, a scan driver, a data driver, a pad unit including a plurality of pads for transmitting driving power or driving signals to at least one of the display unit, the scan driver, and the data driver, and a protective circuit unit coupled between the pad unit and at least one of the display unit, the scan driver, or the data driver. The protective circuit unit includes a semiconductor layer, insulating layers on the semiconductor layer, and a conductive layer on the insulating layer. One region of the conductive layer that overlaps the semiconductor layer is physically disconnected to create two adjacent ends that are coupled to each other through the semiconductor layer. The two adjacent ends of the disconnected conductive layer have recesses and protrusions.2009-04-30
20090108739Organic Electroluminescence Display and Method for Manufacturing the Same - A method for manufacturing an organic electroluminescence display includes forming a first electrode, forming an organic light emitting medium layer including an organic light emitting layer on the first electrode, the respective organic light emitting medium layers including respective organic light emitting layers having different life-times in light emitting, and forming a second electrode on the organic light emitting medium layer, wherein the organic light emitting layer having a longer life-time is formed earlier.2009-04-30
20090108740Organic light emitting diode display - An organic light emitting diode (OLED) display includes a first substrate, a second substrate, a sealing member, wire patterns, and a planarization layer. The first and second substrates face each other. The sealing member is disposed between the first substrate and the second substrate for sealing a space between the first substrate and the second substrate. The wire patterns are formed on at least one of the first and second substrates. The planarization layer is disposed between the wire patterns and is connected to the sealing member.2009-04-30
20090108741ORGANIC EL DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic EL display device includes a first organic EL element which emits light of a first color and a second organic EL element which emits light of a second color that differs from the first color, the first organic EL element and the second organic EL element being arranged on a substrate, wherein each of the first organic EL element and the second organic EL element includes a first electrode, a second electrode which is opposed to the first electrode, and an organic layer which is interposed between the first electrode and the second electrode, the organic layer of the first organic EL element and the organic layer of the second organic EL element are formed of an identical material, and a light emission function of the first color is substantially lost in the organic layer of the second organic EL element.2009-04-30
20090108742DISPLAY DEVICE - An organic EL element includes an anode, a cathode disposed to be opposed to the anode, an organic active layer disposed between the anode and the cathode, and a carrier injection adjusting layer which is disposed between the anode and the organic active layer and exhibits such varistor characteristics that a conduction current due to an applied voltage varies.2009-04-30
20090108743LIGHT EMITTING DEVICE - A light emitting device includes a plurality of types of light emitting elements including at least a red light emitting element that outputs red light, a green light emitting element that outputs green light, and a blue light emitting element that outputs blue light. Each of the plurality of types of the light emitting elements includes a first electrode, a second electrode that is disposed on a side for outputting light and has semi-transmissive reflectivity or transparency, a function layer that is formed between the first electrode and the second electrode and includes at least a light emitting layer, a reflective layer that additionally serves as the first electrode or is formed separately from the first electrode in a position for facing the function layer through the first electrode and reflects light generated in the light emitting layer to the second electrode side, and a color filter that is disposed in a position for facing the reflective layer through the function layer and absorbs light having wavelengths in a wavelength range other than a wavelength range of the output light. In addition, at least one type of the light emitting element of the plurality of types of the light emitting elements further includes a semi-reflective layer that is disposed between the reflective layer and the function layer and a transparent layer that is disposed between the reflective layer and the semi-reflective layer.2009-04-30
20090108744ACTIVE MATRIX ORGANIC LIGHT EMITTING DISPLAY - An organic light emitting display keeps a constant grayscale in an organic light emitting display panel even if power supplied by a power supply is changed. The organic light emitting display includes: a switching unit for selecting and outputting a first source power or a second source power as a first reference power; a comparator for comparing the first reference power with the second source power and outputting a difference value between the first reference power and the second source power; an adder for adding the difference value to an initial second reference power to output as a second reference power, such that a voltage level of the second reference power is changed when a voltage level of the first reference power is changed; and a gamma voltage generator for generating plural gamma voltages to be utilized for displaying the image on an organic light emitting display panel by utilizing the first and second reference powers.2009-04-30
20090108745Organic EL Device Panel and Method for Manufacturing the Same - An organic EL device panel includes an organic EL device substrate including a substrate, a plurality of organic EL devices which are formed on the substrate, and a plurality of wirings for driving the organic EL devices, a sealing substrate which covers the organic EL devices, and a sealing material which is used for attaching the organic EL device substrate to the sealing substrate, wherein space for placing the sealing material includes a region having a sealing space where there is an overhead crossing of wirings, and wherein the organic EL device substrate is attached to the sealing substrate by a sealing material without a spacer in the region where there is the overhead crossing of wirings.2009-04-30
20090108746Anthracene-based compound and organic light emitting device employing the same - Provided are an anthracene-based compound represented by Formula 1 or 2 and an organic light emitting device employing the same:2009-04-30
20090108747Organic electroluminescent display and method of making the same - An organic EL display includes an organic material, a gas barrier layer on the member, and an organic EL unit on the gas barrier layer. The gas barrier layer comprises AlxTiyOz, wherein Al represents aluminum, Ti represents titanium, O represents oxygen, x represents the ratio of atoms of Al, y represents the ratio of atoms of Ti, and z represents the ratio of atoms of O. A Ti-atom ratio of the gas barrier layer is given in the units of atom % and defined by the following equation: Ti-atom ratio={y/(x+y)}·100. The gas barrier layer has a first portion at an interface with the member and a second portion at an interface with the organic EL unit. The Ti-atom ratio of the first portion is 0 atom %. The Ti-atom ratio of the second portion is greater than or equal to 10 atom %.2009-04-30
20090108748Organic electro-luminescence display device - An organic electro-luminescence display device emits light by applying a voltage by an image signal between an upper electrode (2009-04-30
20090108749TRANSISTOR AND PROCESS OF PRODUCING THE SAME, LIGHT-EMITTING DEVICE, AND DISPLAY - A transistor capable of modulating, at low voltages, a large current flowing between an emitter electrode and a collector electrode. A process of producing the transistor, a light-emitting device comprising the transistor, and a display comprising the transistor. The transistor comprises an emitter electrode and a collector electrode. Between the emitter electrode and the collector electrode are situated a semiconductor layer and a sheet base electrode. It is preferred that the semiconductor layer be situated between the emitter electrode and the base electrode and also between the collector electrode and the base electrode to constitute a second semiconductor layer and a first semiconductor layer, respectively. It is also preferred that the thickness of the base electrode be 80 nm or less. Furthermore, a dark current suppressor layer is situated at least between the emitter electrode and the base electrode, or between the collector electrode and the base electrode.2009-04-30
20090108750COMPOUND HAVING THIADIAZOLE RING STRUCTURE SUBSTITUTED WITH PYRIDYL GROUP AND ORGANIC ELECTROLUMINESCENT DEVICE - An object of the present invention is to provide an organic compound having excellent characteristics, which is excellent in electron injection/transport performance, has hole blocking property and is high in stability in a thin film state, as a material for an organic EL device having high efficiency and high durability, and further to provide an organic EL device having high efficiency and high durability using this compound. The invention relates to a compound represented by general formula (1), which has a thiadiazole ring structure substituted with a substituted pyridyl group, and to an organic EL device having a pair of electrodes and at least one organic layer interposed therebetween, wherein the compound is contained as a constituent material of at least one of the organic layer(s).2009-04-30
20090108751LAMP MOUNT STRUCTURE - A lamp can include a low-beam filament arranged in a horizontal reference plane containing an optical axis of a glass bulb, and facing in a direction orthogonal to the optical axis. A high-beam filament can be arranged in a plane normal to the horizontal reference plane and in parallel with the low-beam filament. A pair of inner leads for supporting the low-beam filament can be located in the horizontal reference plane. A pair of inner leads for supporting the high-beam filament can be located in a plane defined in parallel with the optical axis and normal to the horizontal reference plane.2009-04-30
20090108752Conductive composition for black bus electrode, and front panel of plasma display panel - The black bus electrode of plasma display panel is formed from a conductive composition comprising a conductive powder, glass powder, organic binder, organic solvent, and black pigment, wherein the conductive powder is coated with metal selected from the group of Ru, Rh, Pd, Os, Ir, Pt and Au.2009-04-30
20090108753PLASMA DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - The present invention provides a plasma display device that allows, at a low cost, reliable electrical connection between a film and a conductive member with low impedance as well as prevention of friction between them. This plasma display device includes a transparent substrate, a film attached to the rear surface of the transparent substrate, a back cover, and a conductive member for connecting the film and the back cover electrically. Convex portions are formed at a predetermined distance apart from each other on the facing surface of the conductive member facing the periphery of the film, while a concave portion or concave portions are formed on the rear surface of the transparent substrate. The convex portions are thus fitted in the concave portion or the concave portions with the film interposed therebetween.2009-04-30
20090108754PLASMA DISPLAY PANEL - A plasma display panel is disclosed. The plasma display panel includes a front substrate on which a scan electrode and a sustain electrode are positioned parallel to each other, a rear substrate on which an address electrode is positioned to intersect the scan and sustain electrodes, a barrier rib positioned between the front and rear substrates to partition a discharge cell, and a phosphor layer that is positioned in the discharge cell and includes a phosphor material and MgO material. At least two scan electrodes are adjacently positioned. The barrier rib includes a first barrier rib positioned parallel to the scan and sustain electrodes, and a second barrier rib intersecting the first barrier rib. A height of the first barrier rib is different from a height of the second barrier rib.2009-04-30
20090108755Composition for fabrication of electrode, electrode fabricated using the same, plasma display panel, and associated methods - A composition for fabricating an electrode includes an organic binder and a conductive filler. About 3 to about 60 wt. % of the composition is the organic binder, about 5 to about 95 wt. % of the composition is the conductive filler, the conductive filler includes predominantly aluminum, the conductive filler has a flake shape, and the conductive filler has an average thickness of about 0.05 μm to about 0.75 μm.2009-04-30
20090108756Metal Halide Fill for an Electric High Pressure Discharge Lamp and Associated Lamp - A metal-halogenide filling for forming an ionisable filling comprises at least one inert gas, mercury and at least one halogen, the filling including at least the components Rb-halogenide and Mn-halogenide. This filling can in particular be contained in the discharge container of a metal-halogenide lamp.2009-04-30
20090108757ONE-PIECE ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE WITH AN ENERGY-RECYCLING FEATURE AND HIGH CONTRAST - This invention is an electricity generating organic light-emitting display device (OLED) consisting of vertically stacked layers including an organic light emitting device (OLED), an insulation layer, a solar cell and thin film transistors. The device can reduce the reflection of ambient light, improve the contrast of the signal, and enhance sun-light readability by allowing the ambient light to be absorbed by the solar cells. Furthermore, additional power will be generated by the solar cell through absorption of ambient light and backward emission of OLEDs. The device, without using the polarizer, can exhibit low reflectance characteristics over the visible region and high display contrast.2009-04-30
20090108758BATTERY-POWERED FLUORESCENT LAMP - A lamp includes a light source, a power tool battery for providing a DC voltage level, and a base for housing the power tool battery. A stem is coupled to the base and supports the light source. A power inverter converts the DC voltage level to an AC voltage level, and a current sensing circuit operatively coupled to the converter or the inverter senses an over-current condition when the converter or the inverter draws more than a predetermined amount of current. The converter or inverter is disabled if the over-current condition continues for more than a predetermined amount of time so that the light source receives the AC voltage level and is illuminated for the predetermined amount of time before power is removed.2009-04-30
20090108759High effficiency and high bandwidth plasma generator system for flow control and noise reduction - A plasma generation system includes a pulse generator having at least one switch and that is configured to convert a DC voltage to a desired high frequency, high breakdown voltage pulse sufficient to break down a high-breakdown voltage gap, wherein all pulse generator switches are solely low to medium voltage, high frequency switches, and further configured to apply the breakdown voltage to a plasma load for the generation of plasma. In one application, the plasma generation system is useful to manipulate the flow of jets and provide highly efficient acoustic noise reduction.2009-04-30
20090108760TROUBLE DETECTING CIRCUIT - A trouble detecting circuit includes (a) a loop circuit conducting a loop current to two discharge tube lamps in a normal state, in which the two discharge tube lamps are driven with two alternating driving voltages having phases reverse to each other by one or two secondary side windings of one or two transformers, and (b) a monitoring circuit monitoring a voltage between two points which are at a substantially same potential in a normal state in the loop circuit.2009-04-30
20090108761TIMING CONTROLLER, LIQUID CRYSTAL DISPLAY COMPRISING THE SAME AND DRIVING METHOD OF LIQUID CRYSTAL DISPLAY - A timing controller, a liquid crystal display (LCD) comprising the same and a driving method of the liquid crystal display, in which the LCD includes an LCD panel, a light source unit divided into n light-emitting blocks providing light to the LCD panel, a side member reflecting the light emitted from the light source unit, a timing controller determining a final brightness of each of the n light-emitting blocks and providing final light data corresponding to the final brightness, the final brightness being determined using reflected brightness based on the light reflected from the side member, and a backlight driver controlling the brightness of each of the n light-emitting blocks in response to the final light data.2009-04-30
20090108762Lighting System - A lighting system is provided. Users can independently switch an ultrasonic detecting device in the lighting system between a disable mode and an enable mode. The lighting system, comprises: a light source for emitting a light; a detecting device for executing a detecting action to an object within a detectable zone of the detecting device; a control circuit, connected between the light source and the detecting device, for controlling the light source to emit the light according to the detecting action; and a trigger device, connected to the control circuit, for stopping the detecting device executing the detecting action in response to a trigger action when the detecting device is operating in an enable mode; or starting the detecting device to execute the detecting action in response to the trigger action when the detecting device is operating in a disable mode.2009-04-30
20090108763PIXEL AND ORGANIC LIGHT EMITTING DISPLAY USING THE SAME - A pixel includes a light emitting diode, and a switching circuit that is coupled to a data line and a compensation power source line, and includes a transistor including a control terminal, a first main terminal coupled to a power source line, and a second main terminal coupled to the light emitting diode. The switching circuit generates a control signal based on at least a voltage of a data signal transmitted through the data2009-04-30
20090108764Starting fluorescent lamps with a voltage fed inverter - A lamp ballast includes an inverter circuit, a resonant circuit, a control circuit, and a startup circuit. When the DC bus reaches its final value, a capacitor in the startup circuit charges to a predetermined voltage, at which point a pulse is sent to start a gate drive circuit in the inverter. Additionally, a gate in the control circuit is initially OFF, allowing full power to the lamp, and a capacitor in the control circuit charges to a predetermined voltage, at which point a gate is turned ON. When the gate is ON, power to the lamp is reduced. The control circuit capacitor is selected so that it charges for a sufficient period to allow the lamp to complete a glow phase of startup before turning on the gate and reducing power as the lamp transitions into an arc phase.2009-04-30
20090108765TWO-WIRE DIMMER CIRCUIT FOR A SCREW-IN COMPACT FLUORESCENT LAMP - A dimmer switch for controlling the intensity of a dimmable screw-in compact fluorescent lamp provides smooth dimming of the fluorescent lamp and prevents flickering of the lamp due to multiple re-strikes. The dimmer switch prevents multiple re-strikes by avoiding multiple firings of a controllably conductive switching device of the dimmer circuit by limiting the high-end light intensity of the fluorescent lamp. Specifically, the dimmer switch limits the length of a conduction interval of the controllably conductive switching device to less than approximately 75% of each half-cycle. The dimmer switch may include a user-accessible adjustment actuator for changing the dimmer switch between an incandescent operating mode and a screw-in compact fluorescent mode. The dimmer switch may also be operable to automatically change the dimmer switch between the incandescent operating mode and the screw-in compact fluorescent mode by detecting the occurrence of the multiple firings of the controllably conductive switching device.2009-04-30
20090108766CIRCUIT WITH IMPROVED EFFICIENCY AND CREST FACTOR FOR CURRENT FED BIPOLAR JUNCTION TRANSISTOR (BJT) BASED ELECTRONIC BALLAST - A current fed bipolar junction transistor (BJT) based inverter ballast includes base drive circuits configured to drive respective BJT switches, and high-speed drive reverse peak current limiting circuits, configured to operate in conjunction with the respective base drive circuits.2009-04-30
20090108767Dc/dc Converter Device and Discharge Lamp Lighting Device - A DC/DC converter device according to the present invention includes a plurality of resonant DC/DC converters 2009-04-30
20090108768BACKLIGHT CONTROL DEVICE AND METHOD FOR CONTROLLING A DRIVING CURRENT OF AN LED - A backlight control device for controlling a driving current of an LED is disclosed. By controlling current outputs from current sources of a plurality of current output units, a display will be able to generate desirable backlight. Then by adjusting currents output by the plurality of current output units, brightness of a plurality of pixels can be dynamically adjusted. The brightness of pixels with higher gray levels can be increased while the brightness of pixels with lower gray levels can be decreased, thereby improving the contrast of image and saving power consumption.2009-04-30
20090108769LIGHTING DEVICE AND ILLUMINATION APPARATUS - The present invention provides a lighting device capable of controlling finely modulated light control without stopping other processing regardless of an operation clock. The light modulation signal generating portion calculates a cycle of a PWM signal based on the lighting state of lamp, which is detected by state detecting portion and a predetermined operation clock. A PWM signal of the cycle calculated by the state detecting portion is generated by the light modulation signal generating portion capable of generating the PWM signal corresponding to the cycle of a non-integral number of times of the operation clock, wherein the cycle of the PWM signal can be continuously and finely varied without stopping other processing regardless of operation clocks, and fine modulated light control is enabled.2009-04-30
20090108770LIGHT SOURCE, PROJECTOR, AND METHOD FOR DRIVING LIGHT SOURCE - A light source includes an arc tube having a first electrode and a second electrode that emit light by discharge between the electrodes, and a driving unit that supplies a current between the first electrode and the second electrode and can change at least a waveform of frequency and waveform of the supplied current. The driving unit can perform lighting drive of the arc tube, using a driving waveform formed by combining a first lighting waveform having a maximum current value at a part other than a half-cycle rear end of the waveform and a second lighting waveform having a maximum current value at the half-cycle rear end of the waveform.2009-04-30
20090108771DRIVING SYSTEM FOR ELECTRONIC DEVICE AND CURRENT BALANCING CIRCUIT THEREOF - A driving system, includes: a power supply unit for providing a first current and a second current; a first transformer having a primary side coupled to the power supply unit and a secondary side coupled to a first current balancing circuit for driving a plurality of first lamps; a second transformer having a primary side coupled to the power supply unit and a secondary side coupled to a second current balancing circuit for driving a plurality of second lamps; a balancing control circuit coupled to the power supply unit for balancing the first and the second current so that the first current and the second current are substantially equal.2009-04-30