Patents Issued in July 31, 2003
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Publication number: 20030141791Abstract: A telescoping slide assembly includes interconnected mounting, intermediate and stationary slide elements movable relative to one another to extend and retract the mounting and intermediate slide elements relative to the stationary slide element between fully extended and retracted positions. The intermediate slide element includes a rib formed therein. A mounting slide lock is disposed substantially within the rib for operative engagement with the mounting slide element to secure the mounting slide element in a fully extended position such that selective release of the mounting slide lock permits the mounting slide element to move to the fully retracted position and to disconnect from the intermediate slide element.Type: ApplicationFiled: December 12, 2002Publication date: July 31, 2003Inventors: William Dubon, Ronan Stephens
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Publication number: 20030141792Abstract: A fastening device for securing a drawer end plate, front or back, to metal or plastic sidewalls incorporates a tensioning device to force open split dowels held inside holes made in the interior surface of the drawer plate. The dowels thus spread firmly grip the walls of the hole and clamp the sidewall flanges to secure the plate to the sidewalls. Tensioning takes place by the rotation of an expanding member that has an oval cross sectional configuration with the larger diameter formed by the oval shape forcing open the split dowels.Type: ApplicationFiled: January 29, 2002Publication date: July 31, 2003Inventors: Georg Domenig, Philip K. Collins, Manfred Peer
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Publication number: 20030141793Abstract: A refrigerator cabinet assembly is disclosed. The refrigerator cabinet assembly has an outer case including two laterally spaced side walls and a top wall interconnecting the two side walls. Each of the side walls and the top wall is provided with front face portions and rear face portions. The structural strength of the outer case is increased by a plurality of reinforcing members. Said plurality of reinforcing members are secured to the outer case by, e.g., self-drilling screws. The refrigerator cabinet assembly is devoid of welded portion.Type: ApplicationFiled: January 28, 2002Publication date: July 31, 2003Inventor: Jung Owan Lee
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Publication number: 20030141794Abstract: A fire-resistant container for use as a safe. The container is formed of steel and is lined on its inner surface with fire-resistant materials. The preferred fire-resistant materials include mineral-filled paper-faced sheet material, commonly known as “sheetrock,” “gypsum board,” or “drywall.” The sheet material is provided in various thicknesses depending upon the location within the container. An air space is also provided between the fire-resistant materials and the wall. A front wall of the container is formed with an offset jamb for receiving a safe door having a conventional combination lock controlling a plurality of livebolts which are engaged behind a flange formed in the jamb. The door is fitted with fire resistant materials in similar fashion to the container walls, preferably magnesium board, and the jamb is gasketed in intumescent material.Type: ApplicationFiled: January 30, 2002Publication date: July 31, 2003Inventors: Terri Peartree Cleveland, Kelvin H. Wildman, R. David Pallo, Richard J. Rhinewald, Douglas O. Nichol
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Publication number: 20030141795Abstract: An electrode assembly for use in a plasma processing system including a base electrode adapted to be coupled to a source of RF energy, a removable electrode removably coupled to the base electrode, and a material interposed between a surface of the base electrode and a surface of the removable electrode.Type: ApplicationFiled: January 31, 2003Publication date: July 31, 2003Inventors: Eric J. Strang, Andrej S. Mitrovic
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Publication number: 20030141796Abstract: In order to ensure hermeticity of a hermetic container and to suppress occurrence of electrical leakage, a display device is provided with a faceplate including an anode to be supplied with an externally-supplied electric potential, a rear plate arranged facing the faceplate at a predetermined spacing therefrom, a metal pin for supplying the electric potential to the anode from outside of the rear plate through a penetration hole in the rear plate, wherein the penetration hole includes the metal pin by insertion. The metal pin includes an axis portion disposed in the penetration hole and a flange portion which is integral with this axis portion and which is located adjacent an opening end of the penetration hole. The flange portion is joined to the rear plate for hermetically sealing the penetration hole.Type: ApplicationFiled: January 27, 2003Publication date: July 31, 2003Applicant: CANON KABUSHIKI KAISHAInventor: Kinya Kamiguchi
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Publication number: 20030141797Abstract: The invention provide a high-pressure discharge lamp comprising a translucent ceramic discharge vessel having a swollen portion defining a discharge space and a pair of cylindrical portions formed in communicating with the swollen portion and extending from the swollen portion in the opposite directions with each other, metal tubes each having a outer diameter D and fit with its one end on the cylindrical portion, a pair of fusible metal plugs each plugged in the outer end of the metal tube, the fusible metal plug sealing the discharge vessel by being fused to the inner surface of the metal tube for a specified height T from the outer end of the metal plug, a pair of electrode systems each supported its one end to the fusible metal plug and facing the interior of swollen portion with its other end, and ionizing filling filled in the discharge vessel, wherein the ratio T/D of the height T concerning the fusible metal plug and the diameter D satisfies the following equation.Type: ApplicationFiled: January 30, 2003Publication date: July 31, 2003Applicant: Toshiba Lighting & Technology CorporationInventors: Masazumi Isida, Sadao Sakaguchi, Shigemi Oku, Takahito Kashiwagi
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Publication number: 20030141798Abstract: Provided are a composite for paste including carbon nanotubes (CNTs), an electron emitting device using the same, and a manufacturing method thereof. The provided composite for paste includes 5 to 40 parts by weight of CNTs, 5 to 50 parts by weight of alkali metal silicate, and 1 to 20 parts by weight of a binder. The provided electron emitting device includes electron emitting tips, which are located on cathode electrodes in wells and formed of the composite for paste including 5 to 40 parts by weight of CNTs, 5 to 50 parts by weight of alkali metal silicate, and 1 to 20 parts by weight of a binder. The electron emitting device has excellent stability and durability and uniformly emits electrons from a large area, thereby improving the overall performance of an apparatus using the electron emitting device.Type: ApplicationFiled: November 25, 2002Publication date: July 31, 2003Applicant: Samsung SDI Co., LtdInventors: Yong-wan Jin, Jae-eun Jung
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Publication number: 20030141799Abstract: A non-detachable structure of a lamp bulb and its lamp holder, the lamp bulb is connected in advance with a bottom connecting member, two conductors for a tungsten filament in the lamp bulb are bent and positioned onto two lateral sides of the bottom connecting member to electrically contact two metallic contact pieces on a power line when the lamp bulb is insertion connected with a lamp holder; the lamp holder is provided at the top of an opening thereof in corresponding to an upper edge of the bottom connecting member with an engaging mechanism, thereby, the lamp bulb and the bottom connecting member form safe engagement against random detachment. Thereby, the lamp bulbs with various loops can be prevented from direct detaching by a user.Type: ApplicationFiled: January 25, 2002Publication date: July 31, 2003Applicant: Shining Blick Enterprises Co., Ltd.Inventor: Peter K. H. Huang
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Publication number: 20030141800Abstract: A display device is provided with a source for UV radiation. The UV radiation is led into a light guide, and at addressed position(s) where a movable element makes contact with the light guide, the UV light exits the light guide and enters the movable element. The movable element is provided with scattering particles which scatter more efficiently in the light than in visible light. Scattered UV light impinges on UV-sensitive phosphor elements. In alternative embodiments, the movable element is provided with phosphor particles embedded in the material of the movable element.Type: ApplicationFiled: January 17, 2003Publication date: July 31, 2003Applicant: Koninklijke Philips Electronics N.V.Inventor: Gerardus G.P. Van Gorkom
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Publication number: 20030141801Abstract: An inductively-coupled, electrodeless fluorescent lamp comprises a lamp body having two opposed sides; an induction coil on one side of said body; and a magnetically transparent electrostatic shield interposed between said induction coil and said one side of said body, said shield comprising an insulating substrate; an electrically conductive layer on said substrate including means for reducing capacitive coupling between a voltage on said induction coil and a plasma discharge within said lamp body, said electrically conductive layer having a thickness between 400 Å and 1000 Å, inclusive.Type: ApplicationFiled: January 29, 2002Publication date: July 31, 2003Inventor: Robert B. Piejak
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Publication number: 20030141802Abstract: An electronic device includes a non-evaporable getter material having a surface exposed to a low pressure and one or more circuit elements. The non-evaporable getter material forms at least a portion of the one or more circuit elements. The electronic device further includes one or more vacuum devices electrically coupled to the one or more circuit element.Type: ApplicationFiled: January 28, 2002Publication date: July 31, 2003Inventors: John Liebeskind, James C. McKinnell, Chien-Hua Chen
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Publication number: 20030141803Abstract: An image-forming apparatus includes a first substrate, a second substrate, and a spacer that defines the spacing between the first substrate and the second substrate. The spacer has a portion ruggedized with grooves on the surface thereof exposed in the space between the first substrate and the second substrate. The grooves extend in a striped fashion substantially parallel with the first substrate and the second substrate. The ruggedized portion includes a plurality of regions, which are different from each other, in the ruggedized configuration. The image-forming apparatus thus controls an electron beam with a high accuracy, with no disturbance caused by the spacer.Type: ApplicationFiled: January 16, 2003Publication date: July 31, 2003Inventor: Masahiro Fushimi
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Publication number: 20030141804Abstract: An evacuated cavity is hermetically sealed between a baseplate and faceplate of a flat panel display. Melting a glass powder, or frit, on the perimeter of the viewing area forms the hermetic seal. After melting the frit, a first fluid is circulated through the cavity to speed cooling. To further expedite the cooling of the flat panel display, a second fluid flows externally along the contour of the flat panel display to insure that the cooling is uniform and thereby avoid thermal shock.Type: ApplicationFiled: January 27, 2003Publication date: July 31, 2003Inventors: Craig M. Dunham, Seungwoo Lee, Jim Browning, Michel Garcia
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Publication number: 20030141805Abstract: The present invention relates to an electroluminescent device and method of manufacturing the same, capable of reducing the loss of light propagated toward the lateral side of the device and increasing the amount of light propagated to the front of the display to improve the brightness and efficiency of the device, in such a way that a transparent conductive film or a luminescent layer is made of compound having an orientation and is then etched to make the transparent conductive film or the luminescent layer in a protrusion shape. For this, an electroluminescent device comprises a substrate, a first electrode formed on the substrate, a luminescent layer formed on the first electrode, and a second electrode formed on the luminescent layer, wherein at least one of the first electrode, the luminescent layer and the second electrode is formed to have a protrusion at its surface is formed to have a surface of a protrusion shape at its given region.Type: ApplicationFiled: September 10, 2002Publication date: July 31, 2003Inventors: Yong Eui Lee, Sang Hee Park, Sun Jin Yun, Yong Shin Kim
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Publication number: 20030141806Abstract: A flat-panel display and process for forming the flat-panel display having an array of spacer columns anodically bonded to one of the inner major faces on one of the generally planar plates of the evacuated, flat-panel video display. The process includes providing a generally planar plate having a plurality of spacer column attachment sites; providing electrical interconnection between all attachment sites; coating each attachment site with a patch of oxidizable material; providing an array of unattached permanent glass spacer columns, each unattached permanent spacer column being of uniform length and being positioned longitudinally perpendicular to a single plane, with the plane intersecting the midpoint of each unattached spacer column; positioning the array such that an end of one permanent spacer column is in contact with the oxidizable material patch at each attachment site; and anodically bonding the contacting end of each permanent spacer column to the oxidizable material layer.Type: ApplicationFiled: March 4, 2003Publication date: July 31, 2003Inventors: James J. Hofmann, Jason B. Elledge, Zhong-Yi Xia, David A. Cathey
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Publication number: 20030141807Abstract: The invention provides a display device (26) including a plurality of discrete display segments (2). Each display segment (2) is provided with a drive circuit for driving the display elements arranged within the display area. The display device may be provided either as a passive, active or direct pixel addressed array. By interconnecting a number of display segments, a large area display can be achieved without the requirement for long electrodes. This reduces the electrical resistance and parasitic capacitance of the addressing electrodes, enabling the display to provide improved luminance in a displayed image and to operate at higher speeds, providing improved resolution. An active matrix addressing scheme can also be implemented using relatively low mobility organic thin film transistors.Type: ApplicationFiled: November 19, 2002Publication date: July 31, 2003Inventor: Takeo Kawase
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Publication number: 20030141808Abstract: The invention provides an emitter comprising a plurality of types of emission units (for example, EL elements) with different emission aging characteristics, which can obtain good emission conditions even after a certain usage time has elapsed, and furthermore a method of designing the brightness and a program for designing the brightness of the emitter, an electrooptical device and an electric device.Type: ApplicationFiled: December 4, 2002Publication date: July 31, 2003Applicant: SEIKO EPSON CORPORATIONInventor: Hidekazu Kobayashi
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Publication number: 20030141809Abstract: In order to improve the light emission efficiency and the light emission life time of an organic electroluminescent device, the invention provides a method for improving the dispersibility of a light emitting material in the light emitting layer. The light emitting device comprises electrodes consisting of an anode and a cathode provided on a substrate, and an organic light emitting layer between the electrodes, wherein the organic light emitting layer includes a light emitting material and a dopant for improving the dispersibility thereof. As the dopant, there are employed a light emitting compound and a non-light emitting compound or a current enhancing material. In case of employing the light emitting compound, the composition corresponds to a case of utilizing plural light emitting materials, and, in such case, the light emission wavelengths are preferably mutually closer.Type: ApplicationFiled: July 31, 2002Publication date: July 31, 2003Inventors: Manabu Furugori, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Hironobu Iwawaki
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Publication number: 20030141810Abstract: A bright color electroluminescent device that can be easily produced by using a fluorescent conversion substance; and a method of producing the same. A light emitting layer is doped with a fluorescent conversion substance with a concentration gradient. The method therefor includes an ink-jet method. The luminous efficiency is improved. The ink-jet method makes it very easy to pattern an organic layer in producing a color electroluminescent device and to lower the cost.Type: ApplicationFiled: January 6, 2003Publication date: July 31, 2003Applicant: SEIKO EPSON CORPORATIONInventors: Hidekazu Kobayashi, Hiroshi Kiguchi
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Publication number: 20030141811Abstract: An active matrix organic electro luminescent display (ELD) device comprises a substrate, first and second active layers formed of polycrystalline silicon on the substrate, first source and drain regions and second source and drain regions, the first source and drain regions neighboring the first active layer and the second source and drain regions neighboring the second active layer, a gate insulating layer on the first and second active layers, first and second gate electrodes on the gate insulating layer, a first inter layer on the first and second gate electrodes, an anode electrode and a capacitor electrode on the first inter layer, a first passivation layer on the anode electrode and the capacitor electrode, a power line on the first passivation layer, first source and drain electrodes on the first passivation layer, the first source electrode being connected to the first source region and the first drain electrode being connected to the first drain region, second source and drain electrodes on the firstType: ApplicationFiled: December 27, 2002Publication date: July 31, 2003Applicant: LG. PHILIPS LCD CO., LTD.Inventors: Jae-Yong Park, Juhn Suk Yoo
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Publication number: 20030141812Abstract: A first molybdenum layer made of a molybdenum film, an aluminum conductive layer made of an aluminum-neodymium alloy film, a second molybdenum layer made of a molybdenum film and an insulating film layer made of a silicon dioxide film are stacked, in this order from the bottom to the top, on an insulating substrate made of glass.Type: ApplicationFiled: January 9, 2003Publication date: July 31, 2003Applicant: Sanyo Electric Co., Ltd.Inventors: Hiroki Hamada, Daisuke Ide, Koji Suzuki
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Publication number: 20030141813Abstract: A central recess is formed in each of both sides of a substrate, and a pair of electrode layers are formed on a surface of each of the both sides. The surface of the electrode layer on the central recess is formed into a reflector surface. An LED is securely mounted on the electrode layers on the central recess so as to be applied with an electric current.Type: ApplicationFiled: January 23, 2003Publication date: July 31, 2003Applicant: Citizen Electronics Co., Ltd.Inventor: Shinichi Miyashita
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Publication number: 20030141814Abstract: A light intensifier tube is described and which includes a photocathode; a luminescent screen disposed in spaced relation relative the photocathode; a shutter electrode disposed intermediate the photocathode and the luminescent screen; and an anode located intermediate the shutter electrode and the luminescent screen is provided.Type: ApplicationFiled: January 29, 2002Publication date: July 31, 2003Inventors: Leonid Gaber, Dmitry Naroditsky, Marc Morgovsky, Dmitry Sokolov, Sergei Kuklev
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Publication number: 20030141815Abstract: In a method for removing impurities of a plasma display panel capable of shortening panel aging time by removing impurities of an upper and a lower substrates under vacuum gas circumstances, the method includes fabricating an upper substrate and a lower substrate; removing impurities of the upper and lower substrates by using at least one of a plasma-cleaning process in which a discharge is performed under vacuum gas circumstances and a heating process in which heating is performed; assembling the impurities removed upper and lower substrates; exhausting gas inside the assembled upper and lower substrates and injecting a discharge gas; and aging the discharge gas injected-plasma display panel.Type: ApplicationFiled: December 31, 2002Publication date: July 31, 2003Inventor: Jae-Sang Chung
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Publication number: 20030141816Abstract: A plasma display panel and a method for fabricating thereof, capable of preventing damage of a sustain electrode and uniformizing a thickness of a dielectric layer, including the steps of forming a predetermined photoresist pattern on an upper glass substrate, forming a groove on the upper glass substrate by the photoresist pattern, forming bus electrodes to be inserted in the groove formed on the upper glass substrate, forming a sustain electrode which is formed to cover the bus electrodes, for causing discharging, forming a dielectric layer on the front surface of the upper glass substrate and forming a protection layer on the dielectric layer, can reduce thickness of the dielectric layer, thus to improve transmissivity, reduce the cost, and decrease a discharging voltage.Type: ApplicationFiled: January 7, 2003Publication date: July 31, 2003Inventor: Jong-Rae Lim
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Publication number: 20030141817Abstract: A plasma display panel assembly includes electrodes and a dielectric layer covering the electrodes. The dielectric layer is formed of a low-melting-point glass, and the electrodes are formed of a metal containing a crystallized glass. The metal and the low-melting-point glass are simultaneously fired to complete the electrodes and the dielectric layer. Thus, in a manufacturing process of an AC plasma display panel, the number of firing steps can be reduced.Type: ApplicationFiled: November 7, 2002Publication date: July 31, 2003Applicant: FUJITSU LIMITEDInventors: Tsutae Shinoda, Noriyuki Awaji
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Publication number: 20030141818Abstract: A metal halide lamp with red emission equivalent to or exceeding that of a blackbody source of equal correlated color temperature. A metal halide chemistry containing CaI2 plus a complexing metal halide of AlI3 or GaI3 is used to substantially increase red emission of a metal halide lamp. The inclusion of TlI in the fill chemistry is also important in influencing Ca to preferentially emit atomic and molecular red radiation of the visible spectrum while suppressing blue radiation. Optionally, a shroud of neodymium doped glass is also used to significantly filter transmission of yellow light, thereby further improving the proportion of red emission while maintaining a sufficiently white color and good general color rendering.Type: ApplicationFiled: January 25, 2002Publication date: July 31, 2003Inventor: Timothy Lee Kelly
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Publication number: 20030141819Abstract: An illumination unit, that comprises a lamp; an adaptor for attaching the electrical contacts of the unit to contacts of a socket being connected to an electricity network feeding the unit through a switch, the switch electrically connects/disconnects at least one contact of the unit to/from the electricity network, while being in its conductive/nonconductive state, respectively; a rechargeable element for supplying electrical power form to the lamp during emergency period, when the electricity network fails, and an electronic circuit for automatically detecting the state of the switch and failure of the electricity network and to operate the lamp, which is operative to disconnect the unit from the rechargeable element from the electricity network, if failure is detected whenever the switch being in its conductive state, or otherwise, to disconnect the unit from the electricity network and from the rechargeable element whenever the switch being in its nonconductive state.Type: ApplicationFiled: October 15, 2002Publication date: July 31, 2003Inventor: Mose Cojocary
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Publication number: 20030141820Abstract: Embodiments of the invention provide methods and apparatus to process substrates such as flat panel displays, solar panels, etc. In one aspect, the apparatus provides external toroidal plasma generation to perform substrate processes such as deposition and etching of rectangular-shaped substrates. In another aspect, the apparatus provides external toroidal plasma generation to perform chamber cleaning by flowing plasma of a process gas such as argon through a toroidal plasma current path that includes a processing region to be cleaned, introducing a cleaning gas such as fluorine into the processing region from a showerhead apparatus, and cleaning the processing region. In still another aspect, a toroidal plasma loop is shaped by a plasma shaping apparatus to direct the plasma across a processing region within the apparatus to improve process uniformity.Type: ApplicationFiled: January 30, 2002Publication date: July 31, 2003Applicant: Applied Materials, Inc.Inventors: John M. White, Kam S. Law
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Publication number: 20030141821Abstract: A plasma processing apparatus includes a chassis accommodating an impedance matching circuit. The impedance matching circuit is placed between an RF generator and a plasma excitation electrode. Magnetic probes for detecting a magnetic field generated at a slit in a sidewall of the chassis are placed axisymmetrically. The plasma processing apparatus also includes a feedback circuit for feeding back to an RF generator or a matching circuit so that a current detected by a current-detecting unit maintains a predetermined value.Type: ApplicationFiled: January 28, 2003Publication date: July 31, 2003Applicant: ALPS ELECTRONIC CO., LTDInventors: Akira Nakano, Tadahiro Ohmi
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Publication number: 20030141822Abstract: A plasma processing system that includes a plasma chamber, an open resonator movably mounted within the plasma chamber, and a detector. The open resonator produces a microwave signal, and the detector detects the microwave signal and measures a mean electron plasma density along a path of the signal within a plasma field. Alternatively, the plasma processing system includes a plasma chamber, a plurality of open resonators provided within the plasma chamber, a plurality of detectors, and a processor. The processor is configured to receive a plurality of mean electron plasma density measurements from the detectors that correspond to locations of the plurality of open resonators.Type: ApplicationFiled: January 31, 2003Publication date: July 31, 2003Applicant: TOKYO ELECTRON LIMITEDInventors: Murray Sirkis, Wayne L. Johnson, Andrej Mitrovic, Eric J. Strang
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Publication number: 20030141823Abstract: A display panel drive circuit having a plurality of first and second electrodes for connecting to a display panel, a first drive circuit for driving the first electrodes, and a second drive circuit for driving the second electrodes. The second drive circuit is connected to drive all or a part of a plurality of the second electrodes, or interrupted to increase output impedance.Type: ApplicationFiled: October 29, 2002Publication date: July 31, 2003Applicant: FUJITSU HITACHI PLASMA DISPLAY LIMITEDInventors: Yuji Sano, Toyoshi Kawada
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Publication number: 20030141824Abstract: A plasma display panel including a plurality of cells arranged in a matrix, wherein each of the cells includes (a) a scanning electrode having partial cutout, (b) a sustaining electrode having partial cutout, spaced away from the scanning electrode by a discharge gap in mirror-symmetry with a centerline of the discharge gap extending in a first direction, (c) a first trace electrode extending in the first direction on the opposite side of the scanning electrode about the discharge gap such that the first trace electrode makes electrical contact with the scanning electrode and further with a scanning electrode of an adjacent cell, and (d) a second trace electrode extending in the first direction on the opposite side of the sustaining electrode about the discharge gap such that the second trace electrode makes electrical contact with the sustaining electrode and further with a sustaining electrode of an adjacent cell.Type: ApplicationFiled: January 30, 2003Publication date: July 31, 2003Applicant: NEC PLASMA DISPLAY CORPORATIONInventor: Hajime Homma
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Publication number: 20030141825Abstract: An electrode assembly for supplying RF power from a RF power source having an output impedance to an electrically non-linear medium, the assembly being composed of: a drive electrode in communication with the medium and forming with the medium a load impedance; and an impedance match network coupled between the RF power source and the drive electrode for matching the output impedance of the RF source to the load impedance. The match network has an output component that is directly connected to the drive electrode. The electrode assembly can further have a body of RF energy absorbing material disposed between the match network and the drive electrode, the absorbing material having a frequency dependent energy absorption characteristic which increases with frequency.Type: ApplicationFiled: February 12, 2003Publication date: July 31, 2003Inventor: Thomas H. Windhorn
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Publication number: 20030141826Abstract: An arc discharge metal halide lamp for use in selected lighting fixtures having a discharge chamber with light permeable ceramic walls of a selected shape about a discharge region of a selected volume. A pair of electrodes are supported in the discharge region separated from one another by a separation length. The separation length is in a ratio to the effective inner diameter that is greater than four. Ionizable materials are provided in the discharge region comprising a quantity of mercury in a ratio to the discharge region volume that is less than 4 mg/cm3, a noble gas, praseodymium halide, and sodium halide.Type: ApplicationFiled: January 31, 2002Publication date: July 31, 2003Applicant: Matsushita Electric Industrial CO., Ltd.Inventors: Huiling Zhu, Shin Ukegawa, Hiroshi Nohara, Jakob Maya
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Publication number: 20030141827Abstract: A ballast circuit including a power factor correction circuit with an alterable d.c. bus charging rate is provided. The power factor correction circuit selectively alters the d.c. bus charging rate such that, during a startup period for the ballast circuit, the charging rate is faster than during a steady-state period. The ballast circuit including a bridge rectifier, a power factor correction circuit, a bus capacitor, and at least one inverter. The power factor correction circuit including a power factor controller, a semiconductor switch operationally coupled to an output signal of the power factor controller, a selectively alterable impedance network operationally coupled to an output of the semiconductor switch and operationally coupled to an input signal of the power factor controller, and an impedance network control circuit operationally coupled to the impedance network to selectively alter the impedance network.Type: ApplicationFiled: January 25, 2002Publication date: July 31, 2003Inventors: Louis R. Nerone, David J. Kachmarik, Melvin C. Cosby
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Publication number: 20030141828Abstract: In an electrodeless lighting system having a cooling unit for cooling a radiator therein, the electrodeless lighting system includes a microwave generating unit for generating microwave energy; a light emitting unit connected to the microwave generating unit and emitting light by forming plasma by the microwave energy generated in the microwave generating unit; a housing having a first receiving space for receiving the microwave generating unit and sealed-combined with the light emitting unit; a heat exchanger installed at the outer surface of the microwave generating unit to absorb heat generated in the microwave generating unit; a radiator installed at the outer surface of the housing; and a heat transfer member at which one end is connected to the heat exchanger and the other end is connected to the radiator by penetrating the housing to transmit heat from the heat exchanger to the radiator.Type: ApplicationFiled: August 7, 2002Publication date: July 31, 2003Inventors: Joon-sik Choi, Yong-Seog Jeon, Hyo-sik Jeon, Hyun-Jung Kim, Ji-Young Lee, Byeong-Ju Park
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Publication number: 20030141829Abstract: A current equalizer assembly for LCD backlight panel comprises at least a differential current choke and at least a capacitor. The capacitor is arranged striding on a terminal (B) at a primary coil and on a terminal (D) at a secondary coil of the differential current choke so as to equalize the current flowing through every cold cathode fluorescent lamp (CCFL) connected to the differential current choke and the lightness thereof accordingly. Moreover, the capacitance of the stridden capacitor is replaceable by the intrinsic stray capacitance when the inductance of the differential current choke is properly selected.Type: ApplicationFiled: January 31, 2002Publication date: July 31, 2003Inventors: Shan-Ho Yu, Hua-Ming Chen, Jian-Yi Wu, Chi-Hua Tu, Kevin Wang
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Publication number: 20030141830Abstract: A ballast circuit is provided, comprising: a plurality of inverters, each inverter for powering a load; and a controller operationally coupled to a shutdown control signal of each inverter for selectively shutting down any combination of inverters. In another aspect, the controller is for selectively disabling any combination of inverters to effectively disconnect the load associated with each disabled inverter. The controller is for receiving communications from a control device, each communication a selection of 0%, “n−1” approximate percentages each associated with a ratio of “1” through “n−1” loads to “n” loads, where “n” is the total number of loads powered by the inverters of the ballast circuit and where the numerator for each ratio is an integer between “1” and “n−1,” inclusive, or 100% light from the combined loads powered by the inverters of the ballast circuit.Type: ApplicationFiled: January 25, 2002Publication date: July 31, 2003Inventors: Louis R. Nerone, David J. Kachmarik, Melvin C. Cosby
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Publication number: 20030141831Abstract: A beam of accelerated ions (111) is produced from a quiescent plasma (19) created by diffusing a heated primary plasma (15) through an accelerator/homogenizer structure (17) having a uniform voltage potential VB and a total surface area ARF. The RF-conductive, dielectric coated surfaces of the accelerator/homogenizer structure are quasi-uniformly dispersed throughout the primary plasma. The quiescent plasma has a generally homogenous preselected plasma potential VPA approximately equal to VB. An RF-grounded structure (112) having a total ground surface area AG, wherein ARF>AG, attracts ions from the quiescent plasma to produce the accelerated ion beam.Type: ApplicationFiled: January 27, 2003Publication date: July 31, 2003Inventor: Lee Chen
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Publication number: 20030141832Abstract: A system and method for automatically decelerating a personal transporter of the kind that has a controller for controlling the motion of the transporter. Upon detection of a fault condition, a goal value of a control variable is set, the control variable is adjusted at a specified increment in the direction of the goal value, and the prior steps are repeated until the control variable equals the goal value.Type: ApplicationFiled: March 21, 2003Publication date: July 31, 2003Inventors: J. Douglas Field, John B. Morrell
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Method and device for determining the rotor position of an electric motor with several motor strings
Publication number: 20030141833Abstract: The present invention relates to a method and to a detection module (23) for determining the rotor position of an electromotor (10) having a plurality of motor phase windings (101, 201, 301), in particular, a brushless DC motor, in which, for determining the rotor position, the polarity of at least one phase voltage (107, 207, 307), which is induced in at least one first motor phase winding, is determined as at least one first polarity value (111, 211, 311), through comparison to a reference value, in particular, to a real or simulated star-point voltage (25, 26), that is present at a star point of the motor phase windings. For this purpose, it is proposed that the determination of the at least one first polarity value (111, 211, 311) is synchronized to a switch-on time point (te) for supplying current to the at least one first or second motor phase winding, and the at least one first polarity value is determined after a preestablished delay (twa), which follows the at least one switch-on time point (te).Type: ApplicationFiled: November 25, 2002Publication date: July 31, 2003Inventor: Torsten Heidrich -
Publication number: 20030141834Abstract: The invention provides to make an automatic opening and closing apparatus for a vehicle to be thin. An outer rack is attached to an outer side of a stay fixed to a vehicle in such a manner as to freely move in an axial direction along the stay. A thickness of the stay is set to be smaller than a width, and a cross sectional shape thereof is formed so as to be in a substantially thin convex shape. A width in a base end wall portion of the outer rack is formed so as to be larger than a width of a side surface wall portion corresponding to a thickness of the outer rack, and the outer rack is formed in a substantially thin C cross sectional shape. It is possible to make a thickness of a slide mechanism about a gear with of rack gears lined up in an axial direction in the side surface wall portion by making the width of the side surface wall portion slightly larger than the gear width of the rack gear.Type: ApplicationFiled: January 24, 2003Publication date: July 31, 2003Applicant: Mitsuba CorporationInventors: Hiroshi Sakai, Yasushi Yoshida, Takashi Hoshino, Seiji Shioiri, Takao Ochiai
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Publication number: 20030141835Abstract: An apparatus and method for a steering system which compensates a drive current for certain variables in a steer-by-wire and electrical power assist steering system. The present invention utilizes a steering wheel angle sensor, a road wheel angle sensor, and a controller for determining a precise time and amount of compensation for the drive current.Type: ApplicationFiled: January 30, 2002Publication date: July 31, 2003Inventors: Bing Zheng, Zhao Zilai
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Publication number: 20030141836Abstract: A apparatus for controlling an actuator including, an integrator circuit to generate an integrated signal to be represented by a back EMF voltage, a amount circuit to generate a amount signal to indicate the amount to raise or lower the integrated voltage, a direction circuit to generate a direction signal to raise or lower the back EMF voltage, a comparator circuit to compare said integrated voltage with the back EMF voltage, and a switch circuit to add and subtract the amount signal with the integrated voltage in accordance with the direction signal.Type: ApplicationFiled: January 31, 2002Publication date: July 31, 2003Inventor: Joao Carlos F. Brito
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Publication number: 20030141837Abstract: Robot and remote controlled devices have been utilized for information gathering purposes. However these robotic vehicles lack efficiency because they are not capable of operating out of doors or where the sensors and apparatus located on the robots are subject to harsh environments.Type: ApplicationFiled: January 30, 2002Publication date: July 31, 2003Inventors: Stuart Young, Richard R. Gregory
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Publication number: 20030141838Abstract: A method of driving a step motor is provided which uses different operations of driving the step motor according to the driving speed of the driver, including a micro step operation for a low speed section of the driver and a full step operation for a high speed section of the driver. The method reduces low speed vibration and high speed noise caused by switching pulse noise. Moreover, driving the step motor by the full step operation in the high speed section reduces the frequency of use of a central processing unit (CPU), thereby stabilizing the driving device. In addition, only a small number of reduction gears is required, reducing the size of the driving device.Type: ApplicationFiled: October 16, 2002Publication date: July 31, 2003Applicant: Samsung Electronics Co., LtdInventors: Kyung-Pyo Kang, Hyoung-Il Kim
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Publication number: 20030141839Abstract: A portable electronic device that is used as a backup power supply. Which provides a more convenient, effecient and economical way of obtaining a variety of electrical current, without the use of fuel, day or night.Type: ApplicationFiled: January 25, 2002Publication date: July 31, 2003Inventor: Andre E. Hinckson
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Publication number: 20030141840Abstract: A recharging station for personal electronic devices comprises a plurality of individual recharging lockers each having a plurality of substantially different recharging electrical connectors contained therein. Each recharging locker is provided with a lockable door. An activation system locks the door of a selected locker and supplies recharging electrical power to the connectors therein in response to the receipt of a prescribed fee. A recharging system for personal electronic devices useful in hotel rooms, motel rooms, and similar facilities includes a recharging station having a plurality of recharging electrical connectors secured thereto and a microprocessor for supplying recharging electrical power to the recharging electrical connectors.Type: ApplicationFiled: January 28, 2003Publication date: July 31, 2003Inventor: Grant Sanders