11th week of 2009 patent applcation highlights part 19 |
Patent application number | Title | Published |
20090066187 | CONTROL APPARATUS AND CONTROL METHOD FOR VIBRATION WAVE DRIVEN APPARATUS - A vibration wave driven apparatus capable of preventing a resonance frequency of a vibrator from being shifted to a frequency side higher than a fixed drive frequency of the vibrator during the execution of phase difference control or voltage control. Driving signals are supplied from a control apparatus to a vibration-type actuator having a piezoelectric element that functions as an electromechanical energy conversion element. To control the drive of the vibration-type actuator, either a phase difference between the driving signals or a voltage of the driving signals is changed. When either the phase difference or the driving signal voltage is changed, the frequency of the driving signals is set to a predetermined frequency higher than the frequency for use when neither the phase difference nor the driving signal voltage is changed. | 2009-03-12 |
20090066188 | PIEZOELECTRIC DEVICE, LIQUID DROPLET EJECTING HEAD USING THE SAME, AND PROCESS FOR PRODUCING THE SAME - The piezoelectric device includes a piezoelectric film that expands or contracts according to variations in voltage applied, a first electrode provided on a first side of the film, and a second electrode provided on a second side of the film. The film is formed on the second electrode by a vapor phase deposition and mainly composed of Pb | 2009-03-12 |
20090066189 | BOUNDARY ACOUSTIC WAVE DEVICE - A boundary acoustic wave device includes a first medium, a second medium, a third medium, and a fourth medium that are laminated in that order and, an electrode including an IDT electrode disposed at an interface between the first medium and the second medium, the temperature coefficient of delay time TCD of a boundary acoustic wave has a positive value, the fourth medium or the second medium has a positive temperature coefficient of sound velocity TCV, the first medium has a negative temperature coefficient of sound velocity TCV, and the sound velocity of transverse wave of the third medium is set to be less than the sound velocity of transverse wave of the fourth medium and/or the second medium. | 2009-03-12 |
20090066190 | QUARTZ CRYSTAL DEVICE - A quartz crystal device includes: a quartz crystal blank having an outer perimeter part and a vibration region partially separated mechanically from the outer perimeter part by a cut-out groove; a first container joined to a first principal surface of the crystal blank by being joined to an entire perimeter of the perimeter part of the crystal blank via a brazing material layer in the first principal surface; and a second container joined to a second principal surface of the crystal blank by being joined to an entire perimeter of the outer perimeter part of the crystal blank via a brazing material layer in the second principal surface. The vibration region of the crystal blank is hermetically encapsulated in a space formed by the first container, the second container and the outer perimeter part of the crystal blank. | 2009-03-12 |
20090066191 | PIEZOELECTRIC DEVICE AND METHOD FOR MANUFACTURING THE SAME - A piezoelectric device includes: a lower substrate; an upper substrate; an intermediate substrate sandwiched between the lower substrate and the upper substrate, the intermediate substrate including: a piezoelectric vibrating portion; a frame surrounding a periphery of the piezoelectric vibrating portion; a connecting portion coupling the piezoelectric vibrating portion and the frame; a first exciting electrode disposed on an upper surface of the piezoelectric vibrating portion; a second exciting electrode disposed on a lower surface of the piezoelectric vibrating portion; a first wiring line electrically coupled to the first exciting electrode; and a second wiring line electrically coupled to the second exciting electrode; and an inside surface coupling an upper surface and a lower surface of the frame and having a slanted surface having an interior angle with respect to one of the upper surface and the lower surface, the angle being 90 degrees or more. In the oscillator, one of the first wiring line and the second wiring line is disposed to a surface of the slanted surface. | 2009-03-12 |
20090066192 | ULTRASONIC TRANSDUCER AND METHOD OF PRODUCING THE SAME - An ultrasonic transducer includes: piezoelectric elements; a pair of clamping members which clamp said piezoelectric elements; and a cover member which is crimped to at least one of said pair of clamping members in a state where said cover member cooperates with said pair of clamping members to surround said piezoelectric elements. | 2009-03-12 |
20090066193 | Powder Containing Silver and At Least Two Non Silver Containing Elements - Disclosed are methods of making multi-element, finely divided, alloy powders containing silver and at least two non-silver containing elements and the uses of these powders in ceramic piezoelectric devices. | 2009-03-12 |
20090066194 | QUARTZ PIECE AND OSCILLATOR | 2009-03-12 |
20090066195 | Flexible Nanogenerators - A small scale electrical generator includes an elongated substrate and a first piezoelectric fine wire. The first piezoelectric fine wire is disposed along a surface of the substrate. The first piezoelectric fine wire has a first end and a spaced-apart second end. A first conductive contact secures the first end of the fine wire to a first portion of the substrate and a second conductive contact secures the second end of the fine wire to a second portion of the substrate. A fabric made of interwoven strands that includes fibers from which piezoelectric nanowires extend radially therefrom and conductive nanostructures extend therefrom is configured to generate electricity. | 2009-03-12 |
20090066196 | Stepping motor - A stepping motor includes: a stator which includes a cup-like first (outer) yoke having a plurality of notches formed at its bottom plate, a second (inner) yoke, and a bobbin having a coil wound therearound and housed in the annular hollow space formed by the first and second yokes; and a pair of bearings each of which includes a hollow-cylindrical main body and a flange structure having a plurality of protrusions, and is attached to the stator such that the protrusions engage with the notches of the first yoke thereby preventing the bearing from rotating relative to the first yoke, and such that the protrusions make contact with a flange of the bobbin thereby precisely positioning the bearing relative to the first yoke with respect to the axial direction, which prohibits any portions of the bearing from protruding axially outwardly beyond the bottom plate of the first yoke. | 2009-03-12 |
20090066197 | WIRELESS SIGNAL TRANSMISSION DEVICE FOR A DC BRUSHLESS CEILING FAN MOTOR - A wireless signal transmission device for a DC brushless ceiling fan motor that includes a wireless signal transmission device to receive and transmit a signal to a controlling unit, and the controlling unit transmits the control signal to the motor via an electric wire. A wireless signal-transmitting device is installed above the motor. The signal-transmitting device detects the position of the motor and transmits a wireless signal to a signal receiving device, which then transmits the signal to the controlling unit, which further transmits the controlling signal to the motor via of the electric wire, for the purpose of controlling the rotation of the motor. Due to the fact that the signal is transmitted wirelessly, it is not necessary to use any destructive process such as drilling a hole on the body of the ceiling fan, and thus the rigidity and the strength of the components are preserved. | 2009-03-12 |
20090066198 | HOBBY SERVO SHAFT ATTACHMENT MECHANISM - Embodiments of an apparatus for providing enhanced hobby servo motor operational capacity are disclosed. Embodiments include a hobby servo motor having a rotatable output shaft. The rotatable output shaft is splined in that it includes a plurality of circumferentially distributed splines. Embodiments also include a shaft attachment mechanism having a spline receiving portion that includes a plurality of circumferentially distributed protrusions sized and dispersed to support functional engagement of the shaft attachment mechanism to the rotatable shaft. The functional engagement is such that rotation of the rotatable shaft causes a corresponding rotation of the shaft attachment mechanism. The shaft attachment mechanism further includes an elongated shaft that is positioned inline with the rotatable output shaft when the shaft attachment is functionally engaged to the rotatable output shaft. | 2009-03-12 |
20090066199 | Cassette for a towel dispenser and towel dispenser for use of such a cassette - The invention relates to a strip of towel material for use in a towel dispenser, which strip has a longitudinal direction and a transverse direction and has been wound onto a roller, or has been folded along folding lines extending in the transverse direction and spaced apart in the longitudinal direction, such that a stack has been obtained, wherein the strip is provided with at least one electronically readable marking. | 2009-03-12 |
20090066200 | TOWEL DISPENSER AND CASSETTE FOR A TOWEL DISPENSER - A towel dispenser for dispensing towel material in a loop from a stack or roll, which towel dispenser has a back part and a cover part movably connected with the back part, the cover part being provided with receiving means for receiving at least one roll or one stack of folded towel material, wherein the back part is provided with collecting means for taking up towel material dispensed from said at least one stack or one roll. | 2009-03-12 |
20090066201 | Apparatus for Storing and Dispensing Rolled Cleaning Wipes - A storage and dispensing arrangement is provided to maintain moistened wipes wet. The moistened wipes are rolled around a core tube and placed inside a first housing. The first housing is then placed inside a second housing having a closing door to isolate the first housing from external environment. The unit is then hanged into a stand, a rack or a wall. | 2009-03-12 |
20090066202 | HANGING FILE FOLDER RETAINING DEVICE - An exemplary hanging file folder retainer is provided that, in one embodiment, includes a first attaching member, a second attaching member, and a retaining member. The first and second attaching members couple to a hanging file drawer rail in order to secure the hanging file folder retainer to the hanging file drawer rail. The second attaching member is linearly disposed from the first attaching member such that the hanging file folder retainer is secured to the hanging file drawer rail in at least two locations. The retaining member has a length sufficient to at least span the distance between said first and second attaching members. The retaining member can also be increased or decreased upon installation along the hanging file drawer rail depending on the length of the hanging file drawer rail. In at least one functional position, the retaining member inhibits hanging file tabs from disengaging from the hanging file drawer rail. | 2009-03-12 |
20090066203 | Child-proof safety latch - A latch is provided for engagement between the closure member of an enclosure and the frame of the enclosure, the latch comprising a member with a first portion, including a hook portion to engage the frame and prevent the closure member frame from fully opening. The first portion and a complementary second portion each may include buttressing wall sections, one of which must be deflected from alignment with the other to allow the hook portion to be deflected and clear the frame. The latch may be useful as a childproof device to prevent unwanted entry into the enclosure. In addition, a pin may extend from the hook portion and engage a hole in the frame to provide a third feature which must be actuated in order to fully open the closure member. | 2009-03-12 |
20090066204 | Portable x-ray grid cabinet - A radiographic grid cabinet for holding x-ray grids and/or cassettes that can have a vertical structure attached to a flat base with wheels that engage when the device is tilted backward like a handcart so that the cabinet can be easily transported from place to place. In an alternate embodiment, wheels can fold out when needed. The device also can have a support plate that can move vertically on a set of rails or other structure attached to the cart. A thumb controlled pin on a clamp or other locking device can select one of a number of holes in the rails to lock the cabinet into a fixed vertical position. The device can also have a rotating bearing that allows the grid holder to be rotated from a horizontal to a vertical position, or through a vertical position from either of two horizontal positions. The motion can optionally be restricted by the bearing so that the grid holder cannot rotate more than 180 degrees and cannot be turned upside down. This allows slipping in the grid and holding it without retainers. An optional counterweight or counter-balance can be used to make the vertical motion easier. The device can be supplied in different sizes and can be used with different sized grids. The grid assembly can be removable and independently usable for supine x-ray viewing or for other uses. | 2009-03-12 |
20090066205 | Cleaning Apparatus and Manufacturing and Assembly Methods for the Same - A cleaning apparatus is provided. The cleaning apparatus includes a cabinet ( | 2009-03-12 |
20090066206 | METHOD AND APPARATUS OF CATCHING OBJECTS FALLING BEHIND AN ARTICLE OF FURNISHING - A method comprising cutting a cradle to a desired length, positioning the cradle at a position between an article of furnishing and a wall and reachable without moving the article of furnishing, removing adhesive backing from the cradle, and affixing the cradle to the article of furnishing and the wall. An apparatus comprising a generally rectangular sheet having two lateral edges and two longitudinal edges and dimensions generally conforming to a gap between an article of furnishing and a wall, and a plurality of adhesive strips put on one surface of the sheet along the two longitudinal edges of the sheet. | 2009-03-12 |
20090066207 | Telescopic pull-out shelf for a refrigeration device - The invention relates to a telescopic pull-out shelf with at least two runners which are movably guided one on the other so that they can be displaced relative each other in the longitudinal direction. A support on the first runner is resiliently fastened in the direction of movement of the runners. | 2009-03-12 |
20090066208 | PCB CONTACT ARRANGEMENT - A printed circuit board (PCB) for mounting electrical components such as LEDs has either contact traces leading to an edge of the PCB, or outward edge protrusions on which an electrically conductive material is deposited, such that the board itself can be used to make electrical contact in a pre-existing, commercially available fitting, such as a wedge or screw-in or bayonet-base fitting designed to receive incandescent light bulbs. | 2009-03-12 |
20090066209 | LIGHT SOURCE DEVICE - Light source device, including an alternating current high-pressure mercury lamp having a pair of opposed electrodes within a spherical light-emitting part containing at least 0.15 mg/mm | 2009-03-12 |
20090066210 | Spark Plug - A spark plug comprising a housing, a ceramic insulator and a sleeve is provided. The housing has an inner cavity while the ceramic insulator encloses a central electrode. The ceramic insulator is disposed inside the inner cavity and maintain from the housing with a gap. The sleeve is provided enclosing an inner wall of the housing and corresponds to an opening of the inner cavity. The level of an edge surface of the housing corresponding to the opening of the inner cavity is disposed higher than the level of an edge surface of the central electrode, and the level of the center electrode is also higher than the level of the edge surface of the ceramic insulator. | 2009-03-12 |
20090066211 | Method for manufacturing a spark plug having a laterally oriented ground electrode - A method for manufacturing a spark plug having a central electrode and a ground electrode, the central electrode and the ground electrode being spaced apart from each other and a first planar electrode face being formed on the central electrode and a second planar electrode face being formed on the ground electrode by a separative manufacturing method. | 2009-03-12 |
20090066212 | Apparatus and Process for Generating, Accelerating and Propagating Beams of Electrons and Plasma - An apparatus and a process for generating, accelerating and propagating beams of electrons and plasma at high density, the apparatus comprising: a first dielectric tube, which contains gas; a hollow cathode, which is connected to said first dielectric tube; a second dielectric tube, which is connected to said hollow cathode and protrudes inside, and is connected to, a deposition chamber; an anode, which is arranged around said second dielectric tube, in an intermediate position; means for applying voltage to said cathode and said anode; means for evacuating the gas from the chamber; and means for spontaneous conversion of gas in the first dielectric tube into plasma. | 2009-03-12 |
20090066213 | Headlight Lamp - A headlight lamp with at least one incandescent filament, which is surrounded by a lamp vessel. The at least one incandescent filament is constructed in such a way that during lamp operation it generates a luminous flux, the value of which is greater than a predetermined permissible maximum value for the luminous flux of the lamp. The lamp vessel has a region of reduced transparency, with the aid of which the luminous flux emerging from the headlight lamp during lamp operation is reduced to a value of less than or equal to the predetermined permissible maximum value. | 2009-03-12 |
20090066214 | Light emitting display and method of manufacturing the same - Disclosed are light emitting display and method of manufacturing the same. The light emitting display according to the present embodiments includes a first substrate including a plurality of light emitting devices and a pad portion, all of which are formed therein; a second substrate disposed to face the light emitting devices; and a bonding layer bonded to the light emitting devices and the second substrate, wherein a stepped portion is formed at a predetermined depth in an edge of the second substrate that is adjacent to the pad portion, and the bonding layer is extended to the stepped portion. Since the bonding layer is not bonded to the pad portion due to the depth of the stepped portion when the second substrate is bonded to the first substrate, poor electrical contact may be prevented, and it easy to remove the encapsulation substrate to expose the pad portion. Also, the manufacturing process is simple, the process uniformity is high and the process time is short since the bonding layer is formed in the front of the second substrate. | 2009-03-12 |
20090066215 | PLASMA DISPLAY PANEL AND MANUFACTURING METHOD THEREFOR - A plasma display panel includes a front plate and a back plate spaced from and facing each other with a barrier rib therebetween, the front plate and the back plate each having a long side and a short side. A first sealant is at the long side between the front plate and the back plate and a second sealant is at the short side between the front plate and the back plate to seal a discharge space divided by the barrier rib between the front plate and the back plate. A first spacer is in the first sealant and a second spacer is in the second sealant, the second spacer having a smaller volume than the first spacer. | 2009-03-12 |
20090066216 | FIELD EMISSION LIGHT SOURCE - A field emission light source includes a foundation, a supporting member, a transparent shell, an anode, and a cathode. The transparent shell is disposed on the foundation, and thus defines a closed space in the transparent shell. The supporting member includes a first end and a second end opposite to the first end. The first end is connected to the foundation, and the second end is disposed at a center portion of the closed space. The cathode includes a plurality of carbon nanotubes. The cathode is disposed on the second end of the supporting member. | 2009-03-12 |
20090066217 | DISPLAY DEVICE HAVING A BACKLIGHT DEVICE - A display device including a backlight device for shielding a lead wire connected to an anode electrode and stably connecting the lead wire and the anode connector. The display device includes a voltage applying unit for applying an anode voltage to the anode electrode of the backlight device. The voltage applying unit includes a lead wire that is connected to the anode electrode and partially exposed to the outside of a vacuum chamber, an insulation case for shielding the lead wire outside of the vacuum chamber, an elastic member in the insulation case to fix the insulation case to a vacuum chamber by using elastic force, and an anode connector extending through the insulation case to apply the anode voltage to the lead wire. | 2009-03-12 |
20090066218 | METHOD FOR GENERATING LOW COLOR TEMPERATURE LIGHT AND LIGHT EMITTING DEVICE ADOPTING THE SAME - A method for generating low color temperature light and a light emitting device adopting the same, comprise a LED component, phosphor capable to be excited by the emission light of the LED component, and a package colloid for encapsulating the LED component and the phosphor, wherein the package colloid is provided with a electrode lead for connecting the LED component with the external power supply, the peak wavelength of emission light of the LED light is 460-500 nm, the peak wavelength of emission light of the excited phosphor is 580-630 nm. The present invention only use one chip and one kind of phosphor to generate the low color temperature light which is of the same effect as that of the minitype tungsten lamp or the high pressure sodium lamp, and is of advantages including energy saving, low cost and environmental protection, etc. The present invention can be widely used in the manufacturing process of LED lamp of low color temperature, especially in the manufacturing the mini LED bulb. | 2009-03-12 |
20090066219 | Electroluminescent device - The electroluminescent device successively comprises a cathode, an electroluminescent layer, a transparent electrode layer, an evanescent light-scattering layer comprising a matrix composed of a low-refractive material containing light-scattering particles, and a transparent sheet/plate. Such an electroluminescent device is decreased in total reflection not only at a boundary surface between a transparent substrate and an outside air layer but also at a boundary surface of the transparent electrode layer on its light extraction side, and therefore, is considerably improved in light extraction efficiency. In addition, in the electroluminescent device provided with a barrier layer, the transparent electrode layer and the electroluminescent layer can be well protected so that deterioration of electroluminescent pigments and occurrence of dark spots can be effectively prevented, resulting in enhanced life of the device. | 2009-03-12 |
20090066220 | Electroluminescent device - The electroluminescent device successively comprises a cathode, an electroluminescent layer, a transparent electrode layer, an evanescent light-scattering layer comprising a matrix composed of a low-refractive material containing light-scattering particles, and a transparent sheet/plate. Such an electroluminescent device is decreased in total reflection not only at a boundary surface between a transparent substrate and an outside air layer but also at a boundary surface of the transparent electrode layer on its light extraction side, and therefore, is considerably improved in light extraction efficiency. In addition, in the electroluminescent device provided with a barrier layer, the transparent electrode layer and the electroluminescent layer can be well protected so that deterioration of electroluminescent pigments and occurrence of dark spots can be effectively prevented, resulting in enhanced-life of the device. | 2009-03-12 |
20090066221 | ELECTROLUMINESCENT DEVICE - A conversion element ( | 2009-03-12 |
20090066222 | Organic electronic functional material and use thereof - The invention provides an organic electronic functional material which comprises a 1,3,5-tris(4-(N,N-diarylamino)phenyl)benzene represented by the general formula (I) | 2009-03-12 |
20090066223 | ORGANIC ELECTRIC FIELD LIGHT EMITTING ELEMENT AND PRODUCTION THEREFOR - A composition for an organic electroluminescent device is a composition for forming an organic light emitting layer of an organic electroluminescent device by wet coating process. The composition contains a phosphorescent material, a charge transport material, and a solvent, in which the phosphorescent material and the charge transport material are each an unpolymerized organic compound, and the first oxidation potential of the phosphorescent material E | 2009-03-12 |
20090066224 | DICARBAZOLE AROMATIC AMINE POLYMERS AND ELECTRONIC DEVICES - A conjugated or partially conjugated polymer comprising a structural unit of Formula I: I Wherein Ar1 is an aromatic group which contains one or more heteroatoms, or an aromatic group which comprises one or more fused aromatic or non-aromatic rings, said aromatic group may be substituted or unsubstituted; and R1 is alkyl, alkoxy, and aryl group, cyano, or F. | 2009-03-12 |
20090066225 | AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE UTILIZING THE SAME - Provided is a novel aromatic amine derivative with specified structure. Also provided is an organic electroluminescence device having one or more organic thin-film layers including at least a luminescent layer interposed between a cathod and an anode, in which at least one of the organic thin-film layers contains the above aromatic amine derivative alone or as a component of mixture. As a result, there is provided an organic electroluminescence device that has high emission luminance and high heat resistance, excelling in high-temperature storage ability and has long life, and provided an aromatic amine derivative for realizing the organic electroluminescence device. | 2009-03-12 |
20090066226 | ORGANIC ELECTROLUMINESCENT DEVICE, DISPLAY AND ILLUMINATING DEVICE - Disclosed is an organic electroluminescent device having high emission luminance, high external quantum efficiency and long lifetime. Also disclosed are a display and an illuminating device. The organic electroluminescent device is characterized in that it comprises, between a pair of electrodes, a constituent layer including at least a phosphorescence emission layer, wherein at least one in the constituent layer contains a compound represented by formula (1), | 2009-03-12 |
20090066227 | ORGANIC LIGHT-EMITTING DEVICE - An object of the present invention is to provide an organic blue-light-emitting device having high emission efficiency and a long continuous driving lifetime. The organic light-emitting device include a layer containing a first compound having a fluoranthene skeleton and a second compound having a pyrene skeleton, the second compound having an energy gap larger than that of the first compound, wherein EL | 2009-03-12 |
20090066228 | ORGANIC ELECTROLUMINESCENCE ELEMENT - An organic electroluminescent device ( | 2009-03-12 |
20090066229 | Top-Emitting Electroluminescent Devices Comprising Cathode Bus Bars - A top-emitting display apparatus is provided having a plurality of pixels, said apparatus comprising an anode formed on a substrate, a well-defining layer, the thickness of said well-defining layer being insufficient for it to serve as a spacer for an evaporation mask, an organic electroluminescent layer formed on the anode in each well of the well-defining layer to form said plurality of pixels, a layer of metal formed on the top surface of the well-defining layer, and a transparent cathode layer deposited such that it is formed both on the electroluminescent layer and the layer of metal on the top surface of the well-defining layer. A method for the manufacture of such an apparatus is also provided. | 2009-03-12 |
20090066230 | PHOSPHOR AND USE THEREOF - A phosphor which emits light having high brightness, serves as an excellent orange or red phosphor whose light brightness is less decreased when exposed to an excitation source contains a crystal phase having the chemical composition expressed by the general formula [1]: | 2009-03-12 |
20090066231 | Electroluminescent device - The present invention relates to electroluminescent devices that comprise organic layers that contain triazole compounds of the formula (I), or formula (II). The compounds are suitable components of, for example, blue-emitting, durable, organo-electroluminescent layers. The electroluminescent devices may be employed for full color display panels in, for example, mobile phones, televisions and personal computer screens. | 2009-03-12 |
20090066232 | ORGANIC LIGHT EMITTING DEVICE - An organic light emitting device is disclosed. The organic light emitting device includes a first substrate, an organic light emitting element on the first substrate, a second substrate facing the first substrate, and a seal member attaching the first substrate to the second substrate. The organic light emitting element includes an emitting layer. At least one of layers constituting the emitting layer includes a phosphorescence material. The seal member has an absorptance that lies substantially in a range between 25% and 35% at a wavelength of external light of approximately 305 nm to 330 nm. | 2009-03-12 |
20090066233 | Mixed halogen polymerization - Synthesis of regioregular thiophene-based polymers (PTs) and their functionalized counterparts via metal assisted cross-coupling polymerizations utilizing mixed halogen substituted aryl halide monomer precursors. The described method provides a means to control structural homogeneity and regioregularity and the electronic/spectroscopic properties of functionalized PTs, and leads to improved performance of organic semiconductor devices such as OPVs and/or OFETs. Asymmetrical monomers can be used. | 2009-03-12 |
20090066234 | LIGHT EMITTING DEVICES AND COMPOSITIONS - A light emitting composition includes a light-emitting iridium-functionalized nanoparticle, such as an organic-inorganic light-emitting iridium-functionalized nanoparticle. A light emitting device includes an anode, a cathode, and a layer containing such a light-emitting composition. In an embodiment, the light emitting device can emit white light. | 2009-03-12 |
20090066235 | AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME - Provided are an organic electroluminescent device including an aromatic amine derivative formed of a specific structure having a thiophene structure and an organic thin film layer interposed between a cathode and an anode and formed of one layer or a plurality of layers including at least a light emitting layer, in which at least one layer of the organic thin film contains the aromatic amine derivative alone or as a component of a mixture, the organic electroluminescent device in which molecules hardly crystallize, and which decreases a driving voltage, can be produced with improved yields upon the production of the organic electroluminescent device, and has a long lifetime, and an aromatic amine derivative realizing the organic electroluminescent device. | 2009-03-12 |
20090066236 | ORGANIC LIGHT-EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic light-emitting display device includes a thin film transistor on a substrate, a protective layer and a planarization layer covering the thin film transistor, a pixel electrode connected to the thin film transistor, and a wall positioned on at least a portion of the pixel electrode. The planarization layer includes an aperture which exposes a portion of the pixel electrode. An organic layer is formed on the pixel electrode, and a common electrode is formed on the organic layer, An auxiliary electrode layer is formed to overlap the wall on the common electrode. | 2009-03-12 |
20090066237 | ORGANIC ELECTROLUMINESCENT DEVICE, FABRICATION PROCESS OF ORGANIC ELECTROLUMINESCENT DEVICE, DISPLAY DEVICE, AND FABRICATION PROCESS OF DISPLAY DEVICE - An organic electroluminescent device is provided with a substrate, and a lower electrode, a luminescence function layer including an organic light-emitting layer, and an upper electrode stacked in this order on the substrate to emit light, which has been generated in said organic light-emitting layer, out of said upper electrode. The lower electrode includes a reflective material layer comprised essentially of metal, an oxide film provided on a surface of said reflective material layer, and a thin metal film provided over the oxide film. | 2009-03-12 |
20090066238 | Electroluminescent materials grafted with charge transport moieties having graded ionization potential or electrophilic property and their application in light-emitting diodes - This invention provides new electroluminescent materials such as a conjugated polymer or a phosphorescent organometallic complex, which are grafted with multiple charge transport moieties with graded ionization potential or electrophilic property. The charge transport moieties can be all hole transport moieties or all electron transport moieties. The emissive electroluminescent materials covering the full visible range can be prepared. Organic light emitting diodes prepared with these materials can be used as indicators, light source and display for cellular phones, digital camera, pager, portable computer, personal data acquisition (PDA), watch, hand-held videogame, and billboard, etc. | 2009-03-12 |
20090066239 | AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME - Provided are a novel aromatic amine derivative represented by the following general formula (1) and an organic electroluminescent device including an organic thin film formed of one or a plurality of layers including at least a light emitting layer interposed between a cathode and an anode, in which at least one layer of the organic thin film contains the aromatic amine derivative alone or as a component of a mixture, which contributes to suppressing molecular crystallization and improving yield in the production of an organic electroluminescent device, whereby an organic electroluminescent device having a long lifetime can be obtained, and the aromatic amine derivative is capable of realizing the organic electroluminescent device: | 2009-03-12 |
20090066240 | Encapsulation of organic devices - Presented an organic light-emitting device (OLED) that includes at least one active region, at least one organic layer, a first glass plate on which the at least one active region is applied, and a second glass plate. The active region is disposed between the first and the second glass plates. The first and second glass plates are at least partially transparent in the near infrared spectral range. The OLED further includes a bonding material that includes a solder glass and is disposed between the first and second glass plates. The bonding material forms at least one frame that surrounds the active region and mechanically connects the first glass plate with the second glass plate and seals the active region. The bonding material absorbs near infrared radiation. The OLED further includes spacer particles that have a mean diameter that maintains a height between the first and second glass plates. | 2009-03-12 |
20090066241 | ORGANIC ELECTROLUMINESCENCE ELEMENT, AND ILLUMINATING DEVICE AND DISPLAY DEVICE THEREWITH - In an organic EL element, at the interface between a first electrode and a light-emitting layer, a diffraction grating with grating constants a, b, and c is provided in the form of surface irregularities on the first electrode. The grating constants are determined such that, when the effective refractive index as light experiences in the organic EL element is n, with respect to the periods d | 2009-03-12 |
20090066242 | Display device - A display device is provided that includes a first substrate, at least one inorganic insulating film on the first substrate, a light emitting unit on the first substrate (and including a first electrode, an organic film layer having a light emitting layer and a second electrode), a second substrate and a sealant for adhering the first substrate and the second substrate. A viscosity of the sealant may be approximately 80,000 cp to 150,000 cp. | 2009-03-12 |
20090066243 | LIGHT-EMITTING DEVICE - A light-emitting device includes a substrate on which a laminate is disposed, a sealing substrate bonded to the substrate with a plurality of seals therebetween, a plurality of mounting sites in regions surrounded by the seals on the sealing substrate, and a plurality of adsorbers disposed in the mounting sites to adsorb water and oxygen. The laminate includes a first electrode, a second electrode, and an electrooptical material therebetween. The electrooptical material at least includes a light-emitting layer. The seals have the shape of a double or multiple frame surrounding the periphery of the laminate on the substrate. | 2009-03-12 |
20090066244 | Encapsulated Organic Electronic Device With Improved Resistance To Degradation - An encapsulated organic electronic device is provided with: a substrate; at least one first elementary component and one second elementary component set above the substrate, each of said first and second elementary components being provided with a respective first electrode set above the substrate, a respective region of organic material set above the first electrode, and a respective second electrode set above the region of organic material at least partially in an area corresponding to the first electrode; and an encapsulation structure, defining an encapsulation space isolated from an external environment and designed to protect the first and second elementary components from the external environment. In particular, the regions of organic material of the first and second elementary components are separated and distinct from one another and are set entirely within the encapsulation space. | 2009-03-12 |
20090066245 | MATERIAL FOR LIGHT-EMITTING ELEMENT AND LIGHT EMITTING ELEMENT - The present invention is a light-emitting device material characterized by containing a pyrene compound represented by the following general formula (1): | 2009-03-12 |
20090066246 | Display device having electron emission sources - Provided is a display device having electron emission sources. The display device includes first and second substrates which face each other at a predetermined interval and are combined so as to form an internal space, a plurality of first electrodes which are disposed between the first and second substrates, a plurality of second electrodes which are disposed on the first electrodes, an insulation layer which is disposed between the first and second electrodes, a plurality of electron emission sources each of which is formed in one of the electron emission holes that are formed by perforating the second electrodes and the insulating layer, and a gas which is injected into the internal space. Each of the second electrodes includes a second main electrode, a second auxiliary electrode, and a resistance unit which connects the second main electrodes to the second auxiliary electrodes. | 2009-03-12 |
20090066247 | Plasma display panel - A plasma display panel that can reduce electrode-defects, and can improve efficiency. The plasma display panel includes a first substrate and a second substrate that are spaced apart from each other; barrier ribs dividing a space between the first substrate and the second substrate into a plurality discharge cells; transparent electrodes disposed between the barrier ribs and the first substrate, wherein each of the transparent electrodes comprises a first extension unit and a second extension unit that extend to cross the respective discharge cells, and a connection unit connecting the first extension unit to the second extension unit, and at least a part of the connection unit is disposed on the barrier ribs. | 2009-03-12 |
20090066248 | PASTE, METHOD OF MANUFACTURING PLASMA DISPLAY PANEL USING THE PASTE AND PLASMA DISPLAY APPARATUS - A plasma display device and a method of manufacturing a plasma display panel (PDP) are provided. The method includes applying onto a substrate a black matrix paste for forming a black matrix and an electrode paste for forming an electrode; laminating a dielectric material on the substrate; and firing the black matrix paste, the electrode paste, and the dielectric material at the same time. Therefore, it is possible to simplify the manufacture of a PDP by firing electrodes, black matrices, and a dielectric material at the same time. In addition, it is possible to reduce the probability of the generation of air bubbles by appropriately reducing the amount of glass frit in a paste. Moreover, it is possible to enhance the efficiency of driving a PDP and the reliability of a plasma display device. | 2009-03-12 |
20090066249 | Display panel and associated methods - A display panel includes a first substrate having a plurality of address electrodes, and a second substrate having a plurality of display electrodes that include bus electrodes, the first and second substrates being arranged opposite to each other. The bus electrodes may include a mixture of a chromophore element and an electrically conductive metal, the chromophore element including at least one of a transition element and a rare earth element metal. | 2009-03-12 |
20090066250 | DIELECTRIC BARRIER DISCHARGE LAMP - A dielectric barrier discharge lamp comprises multiple tubular discharge vessels of a substantially equivalent size and having a principal axis. Each discharge vessel encloses a discharge volume filled with a discharge gas. The discharge vessels are arranged substantially parallel to their principal axis and adjacent to each other. The lamp also comprises a first set of interconnected electrodes and a second set of interconnected electrodes. The electrodes are isolated from the discharge volume by at least one dielectric layer. At least one of the dielectric layers is constituted by the wall of the discharge vessel, and the electrodes of at least one electrode set are located between the discharge vessels. In one embodiment, the discharge vessels are adjacent to each other in a lattice, and the first and second electrode sets are located between the discharge vessels in interstitial voids of the lattice. In another embodiment, the discharge vessels are arranged adjacent to each other along generatrices of a prism. | 2009-03-12 |
20090066251 | Ceramic Discharge Vessel Having an Opaque Zone and Method of Making Same - An opaque zone in the polycrystalline (PCA) discharge vessel of a high intensity discharge lamp may be made by creating residual pores in predetermined regions of the final-sintered discharge vessel. The control over the placement of the opaque zone is achieved by forming a carbonaceous residue in a specific region of the discharge vessel prior to final sintering. During sintering, the carbonaceous material causes residual porosity in the sintered PCA. The higher emissivity of the opaque PCA provides localized cooling in order to provide more control over the condensate behavior in the discharge vessel. | 2009-03-12 |
20090066252 | Magnetron For Microwave Oven - A magnetron for microwave oven has an anode cylinder, vanes (height: H (mm)), a cathode spirally extending along the central axis, a pair of end hats (outer diameter: DEH | 2009-03-12 |
20090066253 | OPERATING UNIT AND LAMP - Discoloration and deformation of a resin case triggered by heat generation from a failed circuit component at the end of the life of an arc tube are prevented without increasing the cost and size. A lighting unit that lights a light source with an inverter while receiving electric power from an AC power supply, and that contains a lighting circuit that includes a plurality of circuit components inclusive of capacitors. Among the capacitors, all capacitors with an applied voltage of 50V or greater (C | 2009-03-12 |
20090066254 | SELF-BALLASTED FLUORESCENT LAMP AND LIGHTING APPARATUS - A self-ballasted fluorescent lamp capable of achieving a similar appearance to that of an electric light bulb for general illumination includes a base that is attached to a bottom end of a cover and a luminous tube that is supported at a top end of the cover. Electronic components forming a lighting circuit are mounted on a substrate. The substrate is formed to have such a width dimension that allows the substrate to be inserted into the base. The substrate is vertically disposed along a center axis of the base at a position offset from the center axis. Large electronic components are disposed on a first face of the substrate, which faces a large component area in the base formed by the offset substrate. | 2009-03-12 |
20090066255 | LIGHTING CONTROL APPARATUS FOR VEHICLE - A lighting control apparatus includes a portable device, an interior antenna, an exterior antenna, a controller, and a lighting device. The interior antenna has a communicating area at an inside of a vehicle compartment and an exterior antenna has a communicating area at an outside of the vehicle compartment. The controller determines a position of the portable device through one of the interior antenna and the exterior antenna when the portable device is in the communicating area of the one of the interior antenna and the exterior antenna. The lighting devise is disposed at a roof of the vehicle adjacent to a door of the vehicle and illuminates one of the inside of the vehicle compartment and the outside of the vehicle compartment in accordance with the position of the portable device determined by the controller. | 2009-03-12 |
20090066256 | Solid Expellant Plasma Generator - An improved solid expellant plasma generator has been developed. The plasma generator includes a support housing, an electrode rod located in the central portion of the housing, and a mass of solid expellant material that surrounds the electrode rod within the support housing. The electrode rod and the solid expellant material are made of separate materials that are selected so that the electrode and the solid expellant material decompose at the same rate when the plasma generator is ignited. This maintains a point of discharge of the plasma at the interface between the electrode and the solid expellant material. | 2009-03-12 |
20090066257 | DIELECTRIC BARRIER DISCHARGE LAMP LIGHTING APPARATUS AND METHOD OF DETECTING THE NUMBER OF NORMALLY LIGHTING DIELECTRIC BARRIER DISCHARGE LAMPS - A dielectric barrier discharge lamp lighting apparatus includes twenty-four dielectric barrier discharge lamps, and a ballast circuit for lighting the twenty-four dielectric barrier discharge lamps which includes a DC power supply, an inverter circuit, a step-up transformer, and a lighting lamp number detecting circuit. The lighting lamp number detecting circuit detects the number of normally lighting dielectric barrier discharge lamps based on a first peek appearing right after polarity change of an approximate rectangular wave provided from the step-up transformer. When the detected number is less than a predetermined value, the operation of the ballast circuit is controlled to be stopped. | 2009-03-12 |
20090066258 | Streelight monitoring and control - Methods and apparatus associated with monitoring and controlling streetlights include monitoring light levels and voltage levels at corresponding streetlights and controlling the streetlights to set or maintain a particular light output at the respective streetlights or providing power consumption estimates for respective streetlights (streetlight specific metering) based on the voltage levels and light levels. A streetlight controller for a streetlight includes a microcontroller; a first sensor to sense a light level from a lamp within the streetlight; a second sensor operative to sense a voltage level on a power supply for the streetlight; and a switching network coupled with the microcontroller and operative to adjust the light level of the lamp. Methods includes monitoring a light level and voltage level and adjusting a light level, estimating power consumption, or facilitating maintenance in accordance with the light level and voltage level. The methods may be performed all or in part at a streetlight, a local gateway or a central controller and database. | 2009-03-12 |
20090066259 | ORGANIC LIGHT EMITTING DIODE DEVICE AND METHOD FOR MANUFACTURING THE SAME - An organic light emitting diode device and a method of manufacturing the organic light emitting diode device are disclosed. The organic light emitting diode device includes a substrate, a switch thin film transistor on a first side of the substrate to perform a switching function and a driving thin film transistor on the first side of the substrate to perform a driving function, a pixel electrode electrically connected to the driving thin film transistor, a common electrode to form an electric field together with the pixel electrode, the common electrode corresponding to the pixel electrode, an organic light emitting layer disposed between the pixel electrode and the common electrode to generate light, a color filter overlapping the pixel electrode to convert the light generated from the organic light emitting layer into a prescribed color of light, and an absorption layer formed on a second side of the substrate facing the first side to absorb cyan spectrum of light. | 2009-03-12 |
20090066260 | Driving circuit for a display panel and a display having same - There is provided a driving circuit capable of driving current flowing in cathode electrodes with high accuracy and displaying without brightness variation. For driving a cathode electrode in a display panel, a first current mirror circuit is fabricated by connecting a gate of first FET and a gate of second FET and a second current mirror circuit is fabricated by connecting a gate of a third FET connected in series to the second FET and a gate of a fourth FET. A brightness signal controls the magnitude of current flowing in the first FET, so that the current flowing to the cathode electrode via the fourth FET can be controlled with high accuracy. | 2009-03-12 |
20090066261 | MULTI-COLOR BACKLIGHT CONTROL CIRCUIT AND MULTI-COLOR BACKLIGHT CONTROL METHOD - The present invention discloses a multi-color backlight control circuit, comprising: a plurality of pins for electrically connecting with a plurality of LED strings of different LED colors; and a voltage supply circuit for receiving an input voltage and supplying a single output voltage to the plurality of LED strings of different LED colors. The present invention also discloses a multi-color backlight control method, comprising: supplying a single output voltage to a plurality of LED strings of different LED colors. | 2009-03-12 |
20090066262 | Light- Emitting Diode Lighting Apparatus and Vehicle Light Lighting Apparatus Using the Same - A single DC/DC converter section | 2009-03-12 |
20090066263 | Light Emitting Element Control Circuit - A light emitting element control circuit comprising: a variable current generation circuit configured to generate a variable current varying in a direction of increase or in a direction of decrease; a fixed current generation circuit configured to generate a fixed current smaller than a predetermined current of a light emitting element; and a mode setting circuit configured to selectively set a first mode of prohibiting supply of the variable current and the fixed current to the light emitting element, a second mode of supplying the variable current to the light emitting element, and a third mode of supplying the fixed current to the light emitting element, for the variable current generation circuit and the fixed current generation circuit. | 2009-03-12 |
20090066264 | HIGH-VOLTAGE HIGH-POWER CONSTANT CURRENT LED DRIVER DEVICE - A high-voltage high-power constant current LED driver device, can drive LED cluster, comprises switch tube, current sensing resistor Rcs and inductor L, particularly, comprises a low voltage control circuit that detects the voltage drop on the said current sensing resistor Rcs to produce a control signal transmitting to the control terminal of the switch tube; the said current sensing resistor Rcs connects with inductor L in series and is positioned between the output terminal of switch tube and the current output terminal of the current driving device in series connection; the input terminal of the said switch tube is connected to a DC voltage source; and also comprises a diode D | 2009-03-12 |
20090066265 | INVERTER - A soft start circuit generates a soft start voltage Vss which changes with time at a starting time of lighting an EEFL. A pulse width modulator generates a PWM signal Vpwm whose duty ratio is feedback-controlled so that a feedback voltage Vfb corresponding to an output voltage Vdrv of an inverter conforms to the soft start voltage Vss. A logical control unit performs switching control of a voltage of a primary coil of a transformer on the basis of the PWM signal Vpwm from the pulse width modulator. The soft start circuit executes at least one striking operation in which the soft start voltage Vss is raised with time, lowered when being reached to a first voltage level VH, and raised again when being lowered to a second voltage level VL lower than the first voltage level VH. | 2009-03-12 |
20090066266 | INTEGRATED POWER AND CONTROL UNIT FOR A SOLID-STATE LIGHTING DEVICE - The present invention provides an integrated power and control unit for use with a solid-state lighting device. The integrated power and control unit comprises a power input and a data input. The power input receives power from a power source, wherein this power is configured in a first power format and the data input receives control data from a control data source, wherein the control data is configured in a first data format. The integrated power and control unit further comprises a translation device coupled to the power input and the data input. The translation device is configured to convert the power in the first power format to power in a second power format and further configured to convert the control data in the first data format to control data in a second data format. The second power format and second data format are compatible with the required power and data formats of the solid-state lighting device and transmit the required power and data formats of the solid-state lighting device using a power and data output. | 2009-03-12 |
20090066267 | Arrangement and method for driving light-emitting components - The invention relates to an arrangement for driving at least two light-emitting components connected in a series circuit, wherein the series circuit is coupled to a supply voltage, in each case a switching unit with respective switching terminals is coupled in parallel connection to each of the at least two components and each switching unit has two states. | 2009-03-12 |
20090066268 | QUANTIFICATION INDICATING CIRCUIT - A quantification indicating circuit includes an indicating lamp set, a converting circuit, and an indicating lamp control circuit. The indicating lamp set has a plurality of indicating lamps. The converting circuit has a plurality of predetermined threshold values which are compared with a numerical signal of a circuit board to generate a comparison result. The comparison result is converted to be outputs of a plurality of control bits. The indicating lamp control circuit is coupled between the indicating lamp set and the converting circuit and is used for controlling the number of the indicating lamps which are brightened according to the outputs of the control bits. | 2009-03-12 |
20090066269 | VARIABLE INDUCTOR AS DOWNHOLE TUNER - A tunable LC circuit is used to trigger an electron discharge from an accelerator device, such as a Betatron. The circuit includes a coil as a first inductor having a first inductance electrically coupled in series with a capacitor. A second inductor having a variable inductance is electrically coupled, either in series or parallel, to the first inductor. The time to capacitor discharge is governed by: | 2009-03-12 |
20090066270 | DEVICES, SYSTEMS, AND/OR METHODS FOR ELECTRICALLY COUPLING A HIGH VOLTAGE ELECTRIC MOTOR - Certain exemplary embodiments can provide a terminal box adapted to be releasably and/or operatively attached to a selected electric motor of a plurality of electric motors. The terminal box can be adapted to receive a plurality of electrical wires. The plurality of electrical wires can be adapted to convey electrical energy to the selected electric motor. | 2009-03-12 |
20090066271 | METHOD AND SYSTEM FOR CONVERTING DC POWER TO AC POWER - Methods and systems for converting direct current (DC) power to alternating current (AC) power are provided. A first phase of the AC power is generated based on a first carrier signal. A second phase of the AC power is generated based on a second carrier signal. | 2009-03-12 |
20090066272 | Electric safety braking device with permanent magnet motor and breaking torque control - This electric safety braking device for an electric traction vehicle may allow the force/speed characteristic of the vehicle to be improved and includes a rotating electromechanical machine with permanent magnets which has at least one coil with electric terminals, a rheostatic electric braking torque production device, and a commutation device which are capable of connecting the electric terminals of the electromechanical machine to the braking torque production device. The electric safety braking device includes at least one inductor is connected in series between the braking torque production device and the electromechanical machine. | 2009-03-12 |
20090066273 | Regenerative torque shifter - The regenerative torque shifter is a system for electric/hybrid electric vehicles that includes a driver-operated control device mounted in the vehicle and a control unit linked to a motor controller. The driver sets a level of regenerative braking desired by manipulating the control device. Based on output from the control device, the control unit directs the motor controller to apply a corresponding level of regenerative braking action by varying the amount of load seen by the motor. | 2009-03-12 |
20090066274 | MOTOR CONTROLLER WITH HALL SENSOR MISALIGNMENT COMPENSATION - A technique can recover from motor stalls caused by misalignment of motor position sensors such as Hall-effect sensors. In a normal operating mode, a motor controller provides motor drive current to the motor windings based on the sensor signals according to a normal commutation sequence, and monitors for occurrence of a motor stall condition. Upon detecting the motor stall condition, the motor controller first momentarily drives the windings according to one of an advanced commutation state and a delayed commutation state each adjacent to the given commutation state in the normal commutation sequence, and determines whether the motor stall condition persists. If the stall condition persists, then the motor controller next momentarily drives the windings according to the other of the advanced commutation state and the delayed commutation state. By this action, the controller attempts operation at both preceding and succeeding portions of the torque characteristic, such that operation with increased torque is ensured even though the direction of the sensor misalignment is unknown. | 2009-03-12 |
20090066275 | BRUSHLESS ELECTRIC MACHINE AND APPARATUS USING THE SAME - A first member has a magnet assembly that includes at least one permanent magnet pair, and a second member includes an electromagnetic coil. A control circuit controls the supply of power to the electromagnetic coil as well as regeneration of power from the electromagnetic coil. The permanent magnet pair generates its strongest magnetic field along a magnetic field direction on homopolar contact planes where first magnetic poles contact one another, outward from the center of the permanent magnet pair along the magnetic field direction. The electromagnetic coil is positioned such that current will flow in a direction intersecting the magnetic field direction. | 2009-03-12 |
20090066276 | Method for Operating a Rotating Electrical Machine - A method is specified for operating a rotating electrical machine, in which the rotating electrical machine is connected in terms of phase to a converter circuit, having a DC voltage circuit, for connecting at least two voltage levels, and the phases of the converter circuit are connected to the DC voltage circuit in accordance with a selected switching state combination of switching states for power semiconductor switches in the converter circuit. In order for operation of the rotating electrical machine to be possible in an event, over a number L of sampling times various values are determined, and a switching state combination is set as the selected switching state combination with which a sum of determined values is at its smallest. | 2009-03-12 |
20090066277 | Voltage Conversion Apparatus and Vehicle Including the Same - Converters are connected in parallel to each other. The converter boosts a voltage from a power storage devices based on a signal from an ECU and outputs the boosted voltage to a capacitor. The converter boosts a voltage from a power storage device based on a signal from the ECU and outputs the boosted voltage to the capacitor. The ECU generates the signals by using carrier signals having phases desynchronized with each other and identical frequencies, and outputs the generated signals to the converters, respectively. | 2009-03-12 |
20090066278 | STEPPING MOTOR DRIVE AND STEPPING MOTOR DRIVING METHOD - In a drive of a stepping motor, an electromotive force is generated on the coil of a motor with a sinusoidal wave having the same period as an energization period by smoothly rotating a rotor with microstep driving, and an induced power is stably detected by detecting the electromotive force at the zero cross of driving current. The detection around the current zero cross makes it possible to shorten a detection section, form a driving waveform with few distortions, and perform driving with a driving waveform as in an ordinary micro step. Thus a circuit is provided which is aimed at reducing noise, vibrations, and loss of synchronization, and increasing current consumption efficiency in the determination of stop. | 2009-03-12 |
20090066279 | Thin sensorless multiphase DC motor for rotating display unit - A thin sensorless multiphase DC motor for rotating display unit comprises a flat stator, a flat magnetized rotor, an axle, a power source and multiphase electronic controller. The flat stator located parallel to the flat magnetized rotor and comprises circumferentially arrayed coils with magnetic axes parallel to the axle. The magnetized rotor comprises a display disk and located at the periphery of the display disk circumferentially arrayed permanent magnets with magnetic axes parallel to the magnetic axes of the coils. The electronic controller comprises logic elements, phase drivers and a frequency generator. | 2009-03-12 |
20090066280 | MOTOR DRIVE CIRCUIT AND COOLING SYSTEM USING SAME - A motor driving circuit generates pulse driving signals, and controls the ON/OFF state of a switching circuit connected to a coil of a motor which is to be driven, thereby controlling the conduction period of the motor. A driving signal generating circuit generates the driving signals such that they are pulse modulated according to the torque target value for the motor, and outputs the driving signals to the switching circuit. A current detection circuit detects the current flowing through the coil of the motor. A current limiting circuit controls the logical values of the driving signals generated by the driving signal generating circuit such that the current detected by the current detection circuit does not exceed a predetermined current upper limit. The current limiting circuit increases the current upper limit according to the time elapsed in the starting operation of the motor. After the starting operation of the motor, the current upper limit is set to a predetermined fixed value. | 2009-03-12 |
20090066281 | METHOD AND APPARATUS FOR ELECTRIC MOTOR TORQUE MONITORING - Methods and apparatus are provided for monitoring an achieved motor torque produced by an electric motor. The method includes determining the achieved motor torque based on a rotor position of the electric motor and a phase current of the electric motor when the motor speed is not greater than a first pre-determined threshold, determining the achieved motor torque based on a loss-compensated power supplied to the electric motor when the motor speed is greater than the first pre-determined threshold, comparing the achieved motor torque with the torque command, and indicating a fault when the achieved motor torque is not within a pre-determined margin of the torque command. | 2009-03-12 |
20090066282 | SERIAL BACKPLANE FOR MEDIUM VOLTAGE MOTOR DRIVE SYSTEM - A hybrid backplane uses multiple, parallel serial communication channels to provide flexibility and robustness in a motor drive control requiring high-speed data communication for the real-time control of motor waveforms. | 2009-03-12 |
20090066283 | METHOD AND SYSTEM FOR LIMITING THE OPERATING TEMPERATURE OF AN ELECTRIC MOTOR - A method and system for limiting the operating temperature of an electric motor is provided. A maximum operational temperature of the motor is determined. A current operational temperature within the motor is sensed. A maximum allowable power dissipation of the motor is calculated based at least in part on the maximum operational temperature and the current operational temperature of the motor. A torque command for the motor is generated based on the maximum allowable power dissipation. | 2009-03-12 |
20090066284 | Laundry treatment machine and method of controlling the same - There are provided a laundry treatment machine and a method of controlling the same. A temperature around a motor is sensed and the range of current input to the motor in accordance with the sensed temperature is limited in stages. Therefore, the surrounding of the motor can be prevented from being overheated. In addition, since the range of the current input to the motor is limited in stages, when the current applied to the motor is limited, abnormal noise is not generated and the torque of the motor can be maximized. | 2009-03-12 |
20090066285 | FRONT/REAR WIPER ALGORITHM - A wiper system for a vehicle includes a first wiper assembly, a second wiper assembly spaced apart from the first wiper assembly, and a controller in communication with at least one of the first wiper assembly and the second wiper assembly. The controller controls at least one of the first wiper assembly and the second wiper assembly based on at least one of an aerodynamic characteristic of the vehicle and a soiling characteristic of the vehicle. | 2009-03-12 |
20090066286 | MULTI-PHASE AC MOTOR DRIVING DEVICE - A multi-phase AC motor driving device in which occurrence of failure is not erroneously determined is provided. In a multi-phase AC motor driving device including an inverter circuit; current detecting resistances Ru, Rv, and Rw, respectively arranged on lower arm of the respective phase of the inverter circuit, for detecting phase current of the motor; and a control portion and a PWM circuit for controlling ON/OFF operation of switching devices of the inverter circuit, the determination on the occurrence of failure based on the current values detected by the current detecting resistances is not made if relays connected between the inverter circuit and the motor are turned ON and all the switching devices of the lower arms of the respective phases are turned OFF. | 2009-03-12 |