Patents Examined by Trinh Vo Dinh
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Patent number: 7009573Abstract: Compact bidirectional repeaters are provided for wireless communication systems. Their compact size is realized with repeater structures that include different-polarization antennas, back lobe suppressing structures, circuit feedback paths, antenna-feedback detectors, and automatic gain control.Type: GrantFiled: August 12, 2003Date of Patent: March 7, 2006Assignee: Calamp Corp.Inventors: James J. Hornsby, Gary G. Sanford, Kris Kelkar, Shawn Aleman, Vishwanaph G. Upadhye
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Patent number: 7009345Abstract: Power source lines (183) for supplying drive current from power source input terminals (180) to organic EL elements (160) formed in a display pixel region having display pixels are connected by a bypass line (181) along the row direction within the display pixel region. This arrangement minimizes decrease in power source current caused by resistance of the power source lines (183) according to the line length. Accordingly, the organic EL elements (160) can adequately receive the actual desired current, thereby achieving an organic EL device capable of bright displays and having uniform display luminance within the display region.Type: GrantFiled: December 30, 2003Date of Patent: March 7, 2006Assignee: Sanyo Electric Co., Ltd.Inventors: Naoaki Komiya, Ryoichi Yokoyama, Tsutomu Yamada, Ryuji Nishikawa
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Patent number: 7005801Abstract: A projection type cathode ray tube includes a phosphor screen, a cathode, G1, G2 and a main lens composed of first, second and third electrodes. The first and third electrodes are supplied with an anode voltage of the phosphor screen, and the second electrode is supplied with a focus voltage lower than the anode voltage. An inside diameter of an opening in a phosphor screen side end of the second electrode is from 14 mm to 18 mm, and the phosphor screen side end of the second electrode is disposed within the third electrode. An aperture diameter D mm in the G1 electrode and an axial length L mm of the second electrode satisfy the following inequalities: L mm?60×D mm+27.6 mm, L mm??646×D mm+396.3 mm, D mm?0.44 mm, and L mm?75 mm.Type: GrantFiled: October 4, 2004Date of Patent: February 28, 2006Assignee: Hitachi Display, Ltd.Inventor: Go Uchida
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Patent number: 7005807Abstract: An electron-emitting display device contains an emitter electrode, an anode and a gate electrode and an electron emission control device. The electron emission control device includes a plurality of voltage controllers which applies a positive voltage charge to the anode and emitter electrode respective. A third voltage controller applies a negative voltage charge to the gate inhibiting electron emission from electron emissive elements in the display device.Type: GrantFiled: May 30, 2002Date of Patent: February 28, 2006Assignee: cDream CorporationInventors: Chang Chul Ha, Lee Choon Rae
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Patent number: 7005809Abstract: Some embodiments include operation of an accelerator waveguide to output first particles from a tuned end cavity of the accelerator waveguide at a first energy, detuning of the end cavity, and operation of the accelerator waveguide to output second particles from the detuned end cavity at a second energy.Type: GrantFiled: November 26, 2003Date of Patent: February 28, 2006Assignee: Siemens Medical Solutions USA, Inc.Inventors: Kenneth Whitham, Xiaodong Ding
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Patent number: 7002518Abstract: An impedance plane has an elongated strip ship. The impedance plane approximates a magnetic conductor within a particular frequency band. A sector antenna is coupled to one side of the impedance plane. The sector antenna has a planar form factor with dimensions contained within the elongated strip. The sector antenna has a radiation pattern in the particular frequency band that is flared out from the impedance plane at a particular angle.Type: GrantFiled: September 15, 2003Date of Patent: February 21, 2006Assignee: Intel CorporationInventors: Xintian E. Lin, Qinghua Li, Alan E. Waltho, Allen W. Bettner
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Patent number: 6998788Abstract: A device for controlling current useful for driving an organic light emitting diode (OLED) is disclosed which comprises a driver further comprising a switching circuit and a capacitor operatively connected to the switching circuit. The capacitor serves to maintain VGS for at least one component of the switching circuit. During operation of an exemplary embodiment, current to a pixel may be controlled by providing a sampling stage, during which the capacitor may be charged and/or discharged; providing a data current outputting stage during which summed current from each switching circuit may be provided to the pixel; and providing a pixel current reproducing stage during which each pixel is allowed to emit light in the presence of current in the data line. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.Type: GrantFiled: June 11, 2003Date of Patent: February 14, 2006Assignee: AU Optronics CorporationInventor: Wein-Town Sun
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Patent number: 6998798Abstract: A digitally-controlled vertical S linearity correction with a constant amplitude without using an AGC. To preserve line spacing between horizontal lines toward a top and bottom of a screen a third order correction voltage Vcube is applied to a sweep voltage Vosc. A constant current decoder determines an amount of appropriate correction current, which is employed to generate a sweep voltage with modified amplitude due to S correction and one without the modified amplitude. The sweep voltage with constant amplitude is employed to generate Vcube. Vcube is then applied to the sweep voltage along with a compensated amplitude component of the sweep voltage, such that a reduction in the amplitude caused by the S correction is compensated in the output voltage Vout. The compensation of the output voltage amplitude prevents a size reduction of the displayed picture on the screen without employing an iterative auto-align process.Type: GrantFiled: August 10, 2004Date of Patent: February 14, 2006Assignee: National Semiconductor CorporationInventors: Charles Guan, Peyman Hojabri
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Patent number: 6995519Abstract: An organic light emitting diode (OLED) display includes an array of OLEDs, each OLED having two terminals; a voltage sensing circuit for each OLED including a transistor in each circuit connected to one of the terminals of a corresponding OLED for sensing the voltage across the OLED to produce feedback signals representing the voltage across the OLEDs; and a controller responsive to the feedback signals for calculating a correction signal for each OLED and applying the correction signal to data used to drive each OLED to compensate for the changes in the output of each OLED.Type: GrantFiled: November 25, 2003Date of Patent: February 7, 2006Assignee: Eastman Kodak CompanyInventors: Andrew D. Arnold, Ronald S. Cok
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Patent number: 6995515Abstract: A system and method for containing plasma and forming a Field Reversed Configuration (FRC) magnetic topology are described in which plasma ions are contained magnetically in stable, non-adiabatic orbits in the FRC. Further, the electrons are contained electrostatically in a deep energy well, created by tuning an externally applied magnetic field. The simultaneous electrostatic confinement of electrons and magnetic confinement of ions avoids anomalous transport and facilitates classical containment of both electrons and ions. In this configuration, ions and electrons may have adequate density and temperature so that upon collisions they are fused together by nuclear force, thus releasing fusion energy. Moreover, the fusion fuel plasmas that can be used with the present confinement system and method are not limited to neutronic fuels only, but also advantageously include advanced fuels.Type: GrantFiled: March 11, 2004Date of Patent: February 7, 2006Assignee: The Regents of the University of CaliforniaInventors: Norman Rostoker, Michl Binderbauer, Artan Qerushi, Hooshang Tahsiri
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Patent number: 6995523Abstract: Disclosed herein is a discharge lamp lighting device which realizes the minute control of the lighting sequence and electric power of a high-pressure discharge lamp and the control of various anti-error protecting functions by mounting a microcomputer. However, since microcomputer processing-typically progresses in accordance with the programs previously recorded on a ROM, various actions of the discharge lamp are controlled in accordance with ROM-recorded data settings. To modify these settings, the contents of the ROM need to be updated. Therefore, a function for communicating with an external device is assigned to the microcomputer so that various data settings can be modified.Type: GrantFiled: July 8, 2004Date of Patent: February 7, 2006Assignees: Hitachi, Ltd., Hitachi Media Electronics Co., Ltd.Inventors: Fumio Haruna, Masaru Shimizu, Kouji Kitou, Tetsunosuke Nakamura
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Patent number: 6995725Abstract: In an implementation of antenna assembly, an antenna element is formed with a front plate that has slots for wireless communication signal transfer, a dielectric material, a channel guide that is designed to confine the dielectric in a position that aligns the dielectric with the slots in the front plate, and a back plate. The front plate, channel guide, and back plate are attached together to enclose the dielectric within the channel guide to form an enclosed dielectric channel. An antenna assembly includes one or more of the antenna elements.Type: GrantFiled: September 9, 2003Date of Patent: February 7, 2006Assignee: Vivato, Inc.Inventors: Royden M. Honda, W. Jim Savage, Marcus da Silva
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Patent number: 6992634Abstract: A patch antenna for a first frequency is disposed on a first face of a dielectric substrate, and has a first size. A coil antenna for a second frequency is disposed on the first face of the dielectric substrate so as to surround the patch antenna, and has a second size which is larger than the first size. A ground member is disposed on a second face of the dielectric substrate, and has a third size which is larger than the first size and smaller than the second size.Type: GrantFiled: July 28, 2004Date of Patent: January 31, 2006Assignee: Hitachi Kokusai Electric Inc.Inventors: Takeshi Hashidate, Iichi Wako
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Patent number: 6992643Abstract: System and method for improving the interference resistance of an radio frequency (RF) antenna system through passive prescreening of the RF energy incident upon the antenna. The invention physically partitions the RF environment into two or more sectors with respect to the direction of arrival of incident energy. The power level of the RF frequencies of interest incident upon each sector is determined such that whenever the power level exceeds a given threshold, the received signal from energy incident on that sector is modified.Type: GrantFiled: September 5, 2002Date of Patent: January 31, 2006Assignee: Science Applications International CorporationInventors: Cordell Fox, Kevin Wing, Robert A. Murphy, David C. Priester
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Patent number: 6992636Abstract: A substrate (300) for an RF device includes a plurality of layers (102) of dielectric material cofired in a stack. The plurality of layers (102) is formed from a material having a permittivity. Selected ones of the layers (102) have a pattern of perforations (106) formed in at least one perforated area (104). The perforated areas (104) are generally aligned with one another in the stack to lower one or more of an effective value of a permittivity and a loss tangent in a least one spatially defined region (504) of the substrate (300).Type: GrantFiled: April 29, 2005Date of Patent: January 31, 2006Assignee: Harris CorporationInventors: Dennis Tebbe, Thomas Smyth, William Johnson Chappell
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Patent number: 6985108Abstract: An internal planar antenna for small radio apparatuses. The ground plane (310) of the planar antenna is shaped such that it improves the matching of the antenna. The shaping may be done by means of one or more slots (315, 316) in the ground plane. The slot suitably changes the electrical length of the ground plane as viewed from the short-circuit point (S) so that the ground plane will function as a radiator in an operating band of the antenna. Also the slot (331) in the ground plane can be arranged to function as an additional radiator in an operating band of the antenna. Antenna gain will increase as the matching is improved, and the upper band of a dual band antenna, for example, can be made broader.Type: GrantFiled: September 15, 2003Date of Patent: January 10, 2006Assignee: Filtronic LK OyInventors: Jyrki Mikkola, Petteri Annamaa
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Patent number: 6984941Abstract: A usable 13.5 nm radiation source in which Sn is the radiation substance, in which rapid transport with good reproducibility is possible up to the plasma generation site and in which formation of detrimental “debris” and coagulation of the vapor are suppressed as much as possible is achieved using emission of Sn ions in that SnH4 is supplied continuously or intermittently to the heating/ excitation part, is subjected to discharge heating and excitation or laser irradiation heating and excitation, and thus, is converted into a plasma from which extreme UV light with a main wavelength of 13.5 nm is emitted.Type: GrantFiled: March 5, 2004Date of Patent: January 10, 2006Assignee: Ushiodenki Kabushiki KaishaInventors: Tatumi Hiramoto, Kazuaki Hota
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Patent number: 6979955Abstract: Systems and methods are provided for deriving power for a wireless network component from the power source of a fluorescent light. Power couplings are electrically connected to the pins of a fluorescent lamp and to a power converter of the wireless network component so that a circuit is completed between the pins and the power converter. The power couplings may alternatively be electrically connected to the fluorescent lamp connectors of a fluorescent light fixture and to the power converter of the wireless network component to complete the circuit. Power supplied to fluorescent lamp is drawn by the circuit to power the wireless network component. Alternatively, the ballast of the fluorescent light power source may be modified to include an output line that outputs a voltage for powering the wireless network component to a power port. The power port may be mounted on or near the fluorescent light.Type: GrantFiled: February 24, 2004Date of Patent: December 27, 2005Assignee: NxSteps CommunicationsInventors: Peter O. Roach, Thomas J. Mayer, Pierce J. Roberts, Jr.
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Patent number: 6979956Abstract: An organic electroluminescent device of the present invention includes: a gate line and a data line formed over a substrate, the gate and data lines perpendicularly crossing each other and defining a pixel therebetween; a first driving unit formed in the pixel and comprised of a first switching TFT and a first driving TFT; a power line delivering a current signal to the first driving TFT; an organic electroluminescent diode contacting the first driving TFT and receiving the current signal from the first driving TFT; and a second driving unit formed in the pixel and comprised of a second switching TFT and a second driving TFT, the second driving unit being a backup circuit that can deliver the current signal from the power line to the organic electroluminescent diode when the first driving unit malfunctions.Type: GrantFiled: June 30, 2003Date of Patent: December 27, 2005Assignee: LG.Philips LCD Co., Ltd.Inventors: Jae-Yong Park, Nam-Yang Lee, Juhn-Suk Yoo, In-Jae Chung
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Patent number: 6980168Abstract: An antenna comprises an antenna feed line having first and second conductors. It also comprises an antenna driver section having a pair of opposing cones. Each of the cones has an apex region and the cones are arranged so that the apex regions are spaced apart and are adjacent. One of the cones is connected to the first conductor and a second of the cones is connected to the second conductor. The antenna also comprises an antenna beam shaper section. This section has a beam shaper element with a beam shaping surface chosen to provide selected antenna operating characteristics and also has a conforming surface that is in substantial conformity with a crotch defined between the two cones.Type: GrantFiled: November 25, 2003Date of Patent: December 27, 2005Assignee: The United States of America as represented by the Secretary of the NavyInventor: Jovan E. Lebaric