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EMC Europe 2006 Barcelona, International Symposium on Electromagnetic Compatibility

作者： S. Saito Y Akeboshi S. Nitta Information Technology R&D Center Mitsubishi Electric 5-1-1 Ofuna Kamakura Kanagawa 247-8501 Japan Advanced Course of Production System Engineering Salesian Polytechnic 4-6-8 Koyamagaoka Machida Tokyo 194-0215 Japan

ISBN: (纸本)8468994383

It is known that the common mode current generated by an analog-front-end (abbr. AFE) of a modem is a main cause of radiation from external wires that are connected with the AFE. In this paper, the experiment and the analysis about the common mode current that mainly depends on an output transformer in an AFE circuit is carried out. As a result, the common mode current is generated mainly through coupling capacitances between primary and secondary windings of the output transformer. Current Transverse Conversion Loss (abbr. CTCL) is used for evaluation index for common mode current. It is confirmed that a shielded transformer with very small coupling capacitances between primary and secondary windings is not always a good solution to improve CTCL. That is because the capacitances between the windings and the intermediary shield layer connected to the ground are not balanced. Then, an output transformer with a balun is proposed for improving CTCL due to reducing the influence of the coupling capacitances.

关键词： Baluns Frequency measurement Couplings Capacitance Windings Resistors Current measurement Equivalent circuits Simulation Capacitors

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Filling a narrow and high aspect-ratio trench with electro-cu plating

Filling a narrow and high aspect-ratio trench with electro-c...

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作者： Chonan, Yasunori Komiyama, Takao Onuki, Jin Nagano, Takahiro Akahoshi, Haruo Itabashi, Takeyuki Saito, Tatuyuki Khoo, Khyoupin Department of Electronics and Information Systems Factory of System Science and Technology Akita Prefectual University Yurihonjyo 015-0055 Japan Department of Materials Science and Engineering Ibaraki University Hitachi 316-8511 Japan Intellexres Laboratory Hitachi 316-0015 Japan Hitachi Research Laboratory Hitachi 319-1292 Japan Advanced Research Laboratory Hitachi Ltd. Hatoyama 350-0395 Japan Hitachi Ltd. Hitachi Device Development Center 198-8512 Japan

Copper electroplating has been used for making interconnections in large-scale integration (LSI). Sub-100-nm-wide, deep trenches with aspect-ratios over 6 were fully filled by optimizing DC and pulse electroplating processes. Grain sizes of Cu of sub-100-nm wide trenches after electroplating were 70 nm for DC electroplating and 58 nm for pulse electroplating. The Cu grain sizes of Cu interconnects by DC plating after electroplating increased with the annealing temperature. © 2006 The Japan Institute of Metals.

关键词： Copper

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Preparation of AgInS2 Thin Films by Sulf urization of Ag/In Precursors for Solar Cell Application

Preparation of AgInS2 Thin Films by Sulf urization of Ag/In ...

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第十五届国际光伏科学与工程大会

作者： Shigeyuki Nakamura Dai Okamoto Department of Electric and Electronic Engineering Tsuyama National College of Technology 624-1 Numa Tsuyama Okamaya 708-8509 Japan Advanced Electronic and Information System Engineering Course Tsuyama National College of Technology

This paper describe preparation of AgInS thin films as an absorption layer material for a top cell of tandem solar cells. The film was prepared by sulfurization of evaporated Ag/In metal precursors. Ag/In ratios in the films were controlled by changing Ag/In ratios in the vacuum chamber. The annealing temperature of 300℃was found to be appropriate for sulfurizaiton in our case.

关键词： AgInS2 Metal Precursor Vacuum Evaporation Sulfurization Tandem Solar Cell

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Optical controlled matrix switch and free-space optical interconnection by photorefractive polymers

Optical controlled matrix switch and free-space optical inte...

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information Optics and Photonics Technology

作者： Okamoto, Atsushi Funakoshi, Hisatoshi Bunsen, Masatoshi Nishio, Akinori Research Group of Advanced Electronics Graduate School of Information Science and Technology Hokkaido University Kita14-Nishi9 Sapporo 060-8628 Japan Core Technology Center NITTO DENKO Corporation 1-1-2 Shimohozumi Ibaraki Osaka 567-8680 Japan Research Group of Computer and Communication System Graduate School of Engineering Hokkaido University Kita13-Nishi8 Kita-ku Sapporo 060-8628 Japan

By irradiating alternative external light into the system with four-wave mixing in photorefractive polymers, the restriction on the generation of a phase conjugate beam or diffracted light will be demonstrated in this experiment. In addition, in order to verify the use of a two-dimensional array for simultaneous switching, the elimination of only part of diffraction grating recorded will be experimentally conducted.

关键词： Optical switches

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Human systems integration and advanced technology in engineering department workload and manpower reduction

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NAVAL ENGINEERS JOURNAL 2003年第1期115卷 57-65页

作者： Lively, KA Seman, AJ Kirkpatrick, M KENNETH A. LIVELY graduated from the University of Colorado with a BS in applied mathematics and an MS in mathematics in 1976 and from the Massachusetts Institute of Technology with an MS in electrical engineering and the degree ocean engineer in naval architecture and marine engineering in 1984. He retired from the U.S. Navy in 1989 after 23 years of service. Assignments included electrical officer on the USS Constellation (CV 64) project engineer for the DDG 51 machinery control system (NAVSEA) and DDG 51 Technical Director (NAVSEA). He was vice president of the PDI Division of Bird-Johnson Company from July 1989 to November 1998 where he managed various gas turbine and machinery controls related development projects. He joined Anteon Corporation's Systems Engineering Group as senior controls engineer in December 1998 where he provided technical support to the integrated power systems program (NAVSEA PMS 510) and managed the Office of Naval Research Afloat Laboratory. DR. MARK KIRKPATRICK is currently an independent consultant in human factors and work-load/manning analysis and modeling. He holds a Ph.D. degree in experimental psychology from The Ohio State University and has 34 years of experience in applied human factors. From 1982 through 2000 Dr. Kirkpatrick served as the senior vice president of Carlow International. Prior to joining Carlow in 1982 Dr. Kirkpatrick served as a member of the technical staff at North American Rockwell's Missiles Division and as a project director and vice president for Essex Corporation. His areas of expertise include workload simulation task analysis operator-in-the-loop simulation human performance experimentation statistical analysis and human factors T&E. He has directed and/or participated in human factors projects for the U.S. Navy U.S. Army NASA Department of Transportation the U.S. Nuclear Regulatory Commission and private industry. ANTHONY J. SEMAN III is the technical manager for the reduced ship's crew by virtual presence (RSVP) advanced technology d

Aboard current ships, such as the DDG 51, engineering control and damage control activities are manpower intensive. It is anticipated that, for future combatants, the workload demand arising from operation of systems under conditions of normal steaming and during casualty response will need to be markedly reduced via automated monitoring, autonomous control, and other technology initiatives. Current DDG 51 class ships can be considered as a manpower baseline and under Condition III typical engineering control involves seven to eight watchstanders at manned stations in the Central Control Station, the engine rooms and other machinery spaces. In contrast to this manning level, initiatives such as DD 21 and the integrated engineering plant (IEP) envision a partnership between the operator and the automation system, with more and more of the operator's functions being shifted to the automation system as manning levels decrease. This paper describes some human systems integration studies of workload demand reduction and, consequently, manning reduction that can be achieved due to application of several advanced technology concepts. advanced system concept studies in relation to workload demand are described and reviewed including. Piecemeal applications of diverse automation and remote control technology concepts to selected high driver tasks in current DDG 51 activities. Development of the reduced ship's crew by virtual presence system that will provide automated monitoring and display to operators of machinery health, compartment conditions, and personnel health. The IEP envisions the machinery control system as a provider of resources that are used by various consumers around the ship. Resource needs and consumer priorities are at all times dependent upon the ship's current mission and the availability of equipment pawnbrokers.

关键词： Naval warfare

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Affecting the accuracy of an active vision head 2nd

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2nd Hellenic Conference on Artificial Intelligence, SETN 2002

作者： Gasteratos, Antonios Sandini, Giulio Laboratory of Electronics Section of Electronics and Information Systems Technology Department of Electrical and Computer Engineering Democritus University of Thrace XanthiGR-671 00 Greece Laboratory for Integrated Advanced Robotics Department of Communication Computer and System Sciences University of Genoa Viale Causa 13 GenoaI-16145 Italy

ISBN: (纸本)3540434720

In any measuring system the categorization of the error generation factors leads to simplification of complex error problems and to higher suppression of the error. In this paper we categorize, quantify and analyze the errors that affect a binocular active vision head. Simulations have been made and experimental results on a high resolution pan-tilt-vergence mechanism are also proposed. As a conclusion it can be said that the system performs optimal when it is initialized so that the two cameras are perfectly aligned and perpendicular to the baseline. Small variations in the vergence angle or small horizontal deviations of the principal point alters the measurement dramatically. On the other hand, variations in pan and tilt and vertical deviations of the principal point, affect the measurement insignificantly. © Springer-Verlag Berlin Heidelberg 2002.

关键词： Errors

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Using front and back information for tight vehicle following maneuvers

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IEEE Transactions on Vehicular Technology 1999年第1期48卷 319-328页

作者： Y. Zhang B. Kosmatopoulos P.A. Ioannou C.C. Chien Center for Advanced Transportation Technologies Department of Electrical Engineering Systems University of Southern California Los Angeles CA USA Department of Electronics Control Division of Information Storage Opto-Electrons System Laboratory Industrial Research Institute Hsinchu Taiwan

During manual driving, most human drivers often use information about the speed and position of the preceding and following vehicles in order to adjust the position and speed of their vehicles. The purpose of this paper is to design an autonomous intelligent cruise control (AICC) which mimics this human driving behavior. The proposed AICC law uses relative speed and spacing information from the preceding and following vehicles in order to choose the proper control action for smooth vehicle following and for maintaining a desired intervehicle spacing specified by the driver. The vehicle stability and platoon stability (in the case of multiple vehicles) in both directions (backward and forward) are guaranteed by the proposed AICC law. Furthermore, platoon stability is guaranteed for a speed-dependent desired spacing (time headway approach) as well as for a constant desired spacing at all speeds.

关键词： Intelligent control Intelligent vehicles Remotely operated vehicles Mobile robots Vehicle driving Stability Vehicle safety Automatic control Humans Control systems

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A parallel analog intelligent vision sensor with a variable receptive field

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systems and Computers in Japan 1999年第1期30卷 60-69页

作者： Yagi, Tetsuya Kameda, Seiji Iizuka, Kunihiko Faculty of Computer Science and System Engineering Kyushu Institute of Technology Iizuka 820-8502 Japan Advanced Technology Research Laboratories Sharp Tenri 632-0004 Japan Institute of Physiological Science Okazaki Japan Nagoya Institute of Technology Japan Institute of Electronics Information and Communication Engineers Japan Society of Instrument and Control Engineers Japan Japanese Neural Network Society Japan Association for Research in Vision and Opthalmology Japan Kyushu Institute of Technology Japan Advanced Technology Research Laboratories Tenri Japan

The retina is an intelligent vision sensor indispensable in real-time image information processing of animals. The parallel image processing function of the retina was realized in an analog CMOS integrated circuit (vision chip). The chip was implemented with a one-dimensional Laplacian-Gaussian receptive field the size of which can be controlled by external signals. Active pixel sensors were used in the sensor part of the chip where the light sensitivity can be controlled by varying the accumulation time. Circuits compensating for noise due to the mismatch of transistor characteristics were incorporated, and the experimental results verified that sufficiently accurate outputs can be obtained under natural illumination. The chip can effectively extract the spatial frequency bandwidth of the signal in the presence of noise. © 1999 Scripta Technica.

关键词： Analog VLSI Laplacian-Gaussian Offset compensation Parallel processing Variable receptive field Vision chip

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On ambiguity in Coppersmith' attacking method against NIKS-TAS scheme

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IEICE TRANSACTIONS ON FUNDAMENTALS OF electronics COMMUNICATIONS AND COMPUTER SCIENCES 1996年第1期E79A卷 66-75页

作者： Tsujii, S Araki, K Kasahara, M Okamoto, E Sakai, R Maeda, Y Yagisawa, T Department of Information and System Engineering Chuo University Tokyo 112 Japan Department of Electrical and Electronics Engineering Saitama University Urawa-shi 344 Japan Department of Information Science and Design Kyoto Institute of Technology Kyotoshi 606 Japan Japan Advanced Institute of Science and Technology Ishikawa-ken 923-12 Japan Tokyo Institute of Technology Osaka Electro-communication University Artdink Co.

In this paper it is pointed out that although an elegant differential-like approach is developed, Coppersmith' attacking method on NIKS-TAS cannot succeed to forge a shared key of legitimate entities especially when p-1 contains highly composite divisors, as well as decomposibility-hard divisors. This is mainly due to a severe reduction of module size. Computer simulation results confirm this assertion. The ambiguity in the solutions to the collusion equations in the first phase can be analyzed by the elementary divisor theory. Moreover, two basis vectors, q(i),r(i) in the second phase, are found to be inadequate to represent the space spanned by x(i)-y(i) and u(i)-v(i) (i = 1,...,N), because q(i),r(i) exist frequently over the space with small module size. Then, the erroneous values of alpha(i),beta(i),...,epsilon(i) (i = 1,...,N) are derived from the inadequate basis vectors, q(i),r(i). Also, when the degeneracy in module size happens, the solutions to alpha(i),beta(i),...,epsilon(i) (i = 1,...,N) cannot be solved even by means of the exhaustive search over the small prime divisors of p-1.

关键词： modulo degeneracy cryptanalysis ID-based key sharing NIKS-TAS

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THE CALLING(SM) NETWORK - A GLOBAL WIRELESS COMMUNICATION-system

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INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS 1994年第1期12卷 45-61页

作者： TUCK, EF PATTERSON, DP STUART, JR LAWRENCE, MH Calling Communications Corporation. 1900 West Garvey Ave South. Suite 200 West Covina CA 91790 USA. Chairman of Calling Communications Corporation. He is also the Managing Director of Kinship Venture Management Inc. the general partner of Kinship Partners 11 and a General Partner of Boundary the general partner of The Boundary Fund. As a venture capitalist he has founded or participated in founding several telecommunications companies including Calling Communications Corporation Magellan Systems Corporation manufactures of Global Positioning System receivers Applied Digital Access manufacturer of DS-3 test access and network performance monitoring equipment Endgate Technology Corporation specialists in satellite phased array antennas and Poynting Systems Corporation. now a division of Reliance Corporation manufacturers of fibre optic transport equipment. He was a founder of Kebby Microwave Corporation where he invented the first solid-state. frequency-modulated commercial microwave link system. The company was acquired by ITT Corporation where he rose to the position of V.P. and Technical Director of ITT North America Telecommunications Inc. Subsequently he was V.P. of Marketing and Engineering at American Telecommunications Inc. (ATC). He was founding Director of American Telecom Inc. a joint venture between ATC and Fujitsu and has served on more than 20 boards of directors including those of three public companies. He has authored articles on microwave engineering and telephone signalling and was a contributor to Reference Data For Radio Engineers. He is a graduate of the University of Missouri at Rolla where he was later awarded an honorary Professional degree and serves on its Academy of Electrical Engineering. Mr Tuck is a Senior Member of the IEEE a Fellow of the Institution of Engineers (Australia) a Professional Member of the AIAA and a registered professional engineer in three states. More than 25 years of experience in the telecommunications industry where he has been responsibl

There is a very large demand for basic telephone service in developing nations, and remote parts of industrialized nations, which cannot be met by conventional wireline and cellular systems. This is the world's largest unserved market. We describe a system which uses recent advances in active phased arrays, fast-packet switching technology, adaptive routeing, and light spacecraft technology, in part based on the work of the Jet Propulsion Laboratory and on recently-declassified work done on the Strategic Defense Initiative, to make it possible to address this market with a global telephone network based on a large low-Earth-orbit constellation of identical satellites. A telephone utility can use such a network to provide the same modern basic and enhanced telephone services offered by telephone utilities in the urban centres of fully-industrialized nations. Economies of scale permit capital and operating costs per subscriber low enough to provide a service to all subscribers, regardless of location, at prices comparable to the same services in urban areas of industrialized nations, while generating operating profits great enough to attract the capital needed for its construction. The bandwidth needed to support the capacity needed to gain these economies of scale requires that the system use K(alpha)-band frequencies. This choice of frequencies places unusual constraints on the network design, and in particular forces the use of a large number of satellites. Global demand for basic and enhanced telephone service is great enough to support at least three networks of the size described herein. The volume of advanced components, and services such as launch services, required to construct and replace these networks is sufficient to propel certain industries to market leadership positions in the early 21st Century.

关键词： LOW EARTH ORBIT SATELLITE COMMUNICATIONS FAST PACKET SWITCHING EARTH FIXED CELLS ADAPTIVE ROUTEING LIGHT SPACECRAFT K(A) BAND PHASED-ARRAY ANTENNAS

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