Akio USHIDA


Fast Simulation Technique of Plane Circuits via Two-Layer CNN-Based Modeling
Yuichi TANJI Hideki ASAI Masayoshi ODA Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/12/01
Vol. E91-A  No. 12  pp. 3757-3762
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
cellular neural networksplane circuitssignal/power integrityleapfrog method
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Sensitivity Analysis and Optimization Algorithm --- Based on Nonlinear Programming ---
Masayoshi ODA Yoshihiro YAMAGAMI Junji KAWATA Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/09/01
Vol. E91-A  No. 9  pp. 2426-2434
Type of Manuscript:  Special Section PAPER (Special Section on Nonlinear Theory and its Applications)
Category: Analysis, Modelng and Simulation
Keyword: 
sensitivity analysissteepest descent methodoptimization algorithmspice-oriented
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Spice-Oriented Frequency-Domain Analysis of Nonlinear Electronic Circuits
Junji KAWATA Yousuke TANIGUCHI Masayoshi ODA Yoshihiro YAMAGAMI Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/02/01
Vol. E90-A  No. 2  pp. 406-410
Type of Manuscript:  Special Section LETTER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
frequency-domain analysisVolterra series methodspice-oriented harmonic balance methodHB device modules
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Analysis of Reactance Oscillators Having Multi-Mode Oscillations
Yoshihiro YAMAGAMI Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/03/01
Vol. E89-A  No. 3  pp. 764-771
Type of Manuscript:  PAPER
Category: Circuit Theory
Keyword: 
oscillatormultiple oscillationsharmonic balance methodNewton homotopy methodSPICE
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A Reduction Technique for RLCG Interconnects Using Least Squares Method
Junji KAWATA Yuichi TANJI Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/02/01
Vol. E88-A  No. 2  pp. 513-523
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
RLCG interconnectsLeverrier-Faddeeva algorithmleast squares methodpassivityasymptotic equivalent circuitsreduction
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Phase-Inversion Waves in Oscillators Coupled by Two Kinds of Inductors as a Ladder
Masayuki YAMAUCHI Yoshifumi NISHIO Akio USHIDA Mamoru TANAKA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/09/01
Vol. E87-A  No. 9  pp. 2233-2240
Type of Manuscript:  Special Section PAPER (Special Section on Nonlinear Theory and its Applications)
Category: 
Keyword: 
coupled oscillatorssynchronizationwave propagationphase differencephase-inversion wave
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Generation of Various Types of Spatio-Temporal Phenomena in Two-Layer Cellular Neural Networks
Zonghuang YANG Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/04/01
Vol. E87-A  No. 4  pp. 864-871
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
two-layer CNN arrayreaction-diffusion equationpattern formationautowaveclassical wave
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Markov Chain Modeling of Intermittency Chaos and Its Application to Hopfield NN
Yoko UWATE Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/04/01
Vol. E87-A  No. 4  pp. 774-779
Type of Manuscript:  Special Section PAPER (Special Section on Selected Papers from the 16th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
intermittency chaosburst noiseMarkov chainneural networkQAPassociative memory
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Analysis of Phase-Inversion Waves in Coupled Oscillators Synchronizing at In-and-Anti-Phase
Masayuki YAMAUCHI Masahiro OKUDA Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/07/01
Vol. E86-A  No. 7  pp. 1799-1806
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
coupled oscillatorsphase differencephase-inversion wavesin-and-anti-phase synchronization
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Phase-Waves in a Ladder of Oscillators
Masayuki YAMAUCHI Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/04/01
Vol. E86-A  No. 4  pp. 891-899
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
coupled oscillatorsphase differencephase wavesphase-inversion waves
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Image Processing of Two-Layer CNNs--Applications and Their Stability--
Zonghuang YANG Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/09/01
Vol. E85-A  No. 9  pp. 2052-2060
Type of Manuscript:  Special Section PAPER (Special Section on Nonlinear Theory and Its Applications)
Category: 
Keyword: 
cellular neural networkimage processingcloning templatestability
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FOREWORD
Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/06/01
Vol. E85-A  No. 6  pp. 1191-1191
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
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Chaotic Wandering and Its Analysis in Simple Coupled Chaotic Circuits
Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/01/01
Vol. E85-A  No. 1  pp. 248-255
Type of Manuscript:  PAPER
Category: Neural Networks and Bioengineering
Keyword: 
chaoschaotic wanderingchaos synchronizationchaotic circuits
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Synchronization and Its Analysis in Chaotic Systems Coupled by Transmission Line
Junji KAWATA Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12  pp. 3099-3107
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
chaos synchronizationtransmission linecharacteristic impedancetime delay
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Analysis of Chaotic Phenomena in Two RC Phase Shift Oscillators Coupled by a Diode
Yasuteru HOSOKAWA Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/09/01
Vol. E84-A  No. 9  pp. 2288-2295
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
chaosRC phase shift oscillatordiodetoruspiecewise-linear analysis
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Steady-State Response of Nonlinear Circuits Containing Parasitic Elements
Takeshi MATSUDA Yoshifumi NISHIO Yoshihiro YAMAGAMI Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/06/25
Vol. E83-A  No. 6  pp. 1023-1031
Type of Manuscript:  Special Section PAPER (Special Section of Papers Selected from 1999 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC'99))
Category: 
Keyword: 
steady-state analysisRF circuitstime-domain secant methodparasitic capacitorsSPICE
 Summary | Full Text:PDF

BER Estimation of a Chaos Communication System including Modulation-Demodulation Circuits
Masahiro WADA Junji KAWATA Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/03/25
Vol. E83-A  No. 3  pp. 563-566
Type of Manuscript:  LETTER
Category: Nonlinear Problems
Keyword: 
chaoschaos synchronizationAMcommunicationBER
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Wave Propagation Phenomena of Phase States in Oscillators Coupled by Inductors as a Ladder
Masayuki YAMAUCHI Masahiro WADA Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/11/25
Vol. E82-A  No. 11  pp. 2592-2598
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
coupled oscillatorwave propagation phenomenaphase-differenceoscillation frequencywave propagation speed
 Summary | Full Text:PDF

Performance Comparison of Communication Systems Using Chaos Synchronization
Junji KAWATA Yoshifumi NISHIO Herve DEDIEU Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/07/25
Vol. E82-A  No. 7  pp. 1322-1328
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
chaos-based communication systemchaos synchronizationtransmission linechannel modelbit error rate
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Adaptive Simulated Annealing in CNN Template Learning
Brett CHANDLER Csaba REKECZKY Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/02/25
Vol. E82-A  No. 2  pp. 398-402
Type of Manuscript:  LETTER
Category: Neural Networks
Keyword: 
adaptive simulated annealingcellular neural networktemplate learning
 Summary | Full Text:PDF

Efficient Curve Fitting Technique for Analysis of Interconnect Networks with Frequency-Dependent Parameters
Yuichi TANJI Yoshifumi NISHIO Takashi SHIMAMOTO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/12/25
Vol. E81-A  No. 12  pp. 2501-2508
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Transistor-level Circuit Analysis, Design and Verification
Keyword: 
frequency-dependent lossy transmission linescurve fitting technique multi point Pade approximationrecursive convolution
 Summary | Full Text:PDF

Circuit Realization of a Coupled Chaotic Circuits Network and Irregular Pattern Switching Phenomenon
Toshihisa OHIRO Yoshinobu SETOU Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/09/25
Vol. E81-A  No. 9  pp. 1785-1790
Type of Manuscript:  Special Section PAPER (Special Section on Nonlinear Theory and Its Applications)
Category: Chaos, Bifurcation and Fractal
Keyword: 
coupled chaotic networkpattern switchingchaotic wanderingchaotic quasi-synchronizationspatio-temporal chaos
 Summary | Full Text:PDF

On the Influence of Transmission Line on Communication System Using Chaos Synchronization
Junji KAWATA Yoshifumi NISHIO Herve DEDIEU Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/08/25
Vol. E81-A  No. 8  pp. 1713-1724
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
chaotic communicationtransmission lineline lossimpedance mismatching compensationbit error rate
 Summary | Full Text:PDF

Analysis of Nonuniform Transmission Lines Using Chebyshev Expansion Method and Moment Techniques
Yuichi TANJI Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/10/25
Vol. E80-A  No. 10  pp. 1955-1960
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: 
Keyword: 
nonuniform transmission linesasymptotic waveform evaluation (AWE) methodmoment techniquesChebyshev expansion method
 Summary | Full Text:PDF

FOREWORD
Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/09/25
Vol. E80-A  No. 9  pp. 1539-1539
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF

Detecting Lung Cancer Symptoms with Analogic CNN Algorithms Based on a Constrained Diffusion Template
Satoshi HIRAKAWA Csaba REKECZKY Yoshifumi NISHIO Akio USHIDA Tamas ROSKA Junji UENO Ishtiaq KASEM Hiromu NISHITANI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/07/25
Vol. E80-A  No. 7  pp. 1340-1344
Type of Manuscript:  LETTER
Category: Nonlinear Problems
Keyword: 
cellular neural networksimage processingdiffusionX-ray films
 Summary | Full Text:PDF

Analysis of a Coupled Chaotic System Containing Circuits with Different Oscillation Frequencies
Tatsuki OKAMOTO Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/07/25
Vol. E80-A  No. 7  pp. 1324-1329
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
chaossynchronization of chaoscoupled oscillatorsbifurcation phenomenaoscillation death
 Summary | Full Text:PDF

Analysis of Bifurcation Phenomena on Two Chaotic Circuits Coupled by an Inductor
Masahiro WADA Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/05/25
Vol. E80-A  No. 5  pp. 869-875
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
chaossynchronization of chaosbifurcationbreakdown of chaos synchronizationhyperchaos
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Feature Extraction of Postage Stamps Using an Iterative Approach of CNN
Jun KISHIDA Csaba REKECZKY Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/10/25
Vol. E79-A  No. 10  pp. 1741-1746
Type of Manuscript:  LETTER
Category: Neural Networks
Keyword: 
cellular neural networksanalogic algorithmimage processingfeature extractiongradient controlled diffusion
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Synchronization Phenomena in Resistively Coupled Oscillators with Different Frequencies
Yoshinobu SETOU Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/10/25
Vol. E79-A  No. 10  pp. 1575-1580
Type of Manuscript:  Special Section PAPER (Special Section on Nonlinear Theory and its Applications (NOLTA))
Category: Nonlinear Circuits and Bifurcation
Keyword: 
coupled oscillatorsynchronizationdouble-mode oscillation
 Summary | Full Text:PDF

Analysis of Nonuniform and Nonlinear Transmission lines via Frequency-Domain Technique
Yuichi TANJI Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/09/25
Vol. E79-A  No. 9  pp. 1486-1494
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
nonuniform transmission linesnonlinear transmission lineperturbation techniquehybrid frequency-domain methodcompensation element
 Summary | Full Text:PDF

Multimode Chaos in Two Coupled Chaotic Oscillators with Hard Nonlinearities
Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/02/25
Vol. E79-A  No. 2  pp. 227-232
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
chaotic circuithard nonlinearitycoupled oscillatormultimode oscillation
 Summary | Full Text:PDF

Rotation Invariant Detection of Moving and Standing Objects Using Analogic Cellular Neural Network Algorithms Based on Ring-Codes
Csaba REKECZKY Akio USHIDA Tamás ROSKA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/10/25
Vol. E78-A  No. 10  pp. 1316-1330
Type of Manuscript:  Special Section PAPER (Special Section on Nonlinear Theory and Its Applications)
Category: 
Keyword: 
cellular neural networksCNN universal machineanalogic algorithmrotation invariant detection
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Bifurcation Analysis of Nonlinear Resistive Circuits by Curve Tracing Method
Lingge JIANG Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/09/25
Vol. E78-A  No. 9  pp. 1225-1232
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
nonlinear resistive circuitscurve tracing algorithmsolving the bifurcation pointstracing the bifurcation pointsdirections of the branches
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On a Ring of Chaotic Circuits Coupled by Inductors
Yoshifumi NISHIO Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/05/25
Vol. E78-A  No. 5  pp. 608-617
Type of Manuscript:  PAPER
Category: Nonlinear Problems
Keyword: 
chaotic circuitquasi-synchronization of chaoscoupled oscillatortorus breakdown
 Summary | Full Text:PDF

Analysis of Pulse Responses of Multi-Conductor Transmission Lines by a Partitioning Technique
Yuichi TANJI Lingge JIANG Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/12/25
Vol. E77-A  No. 12  pp. 2017-2027
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: 
Keyword: 
multi-conductor transmission linesnonlinear terminationpulse responsesubstitution theoremfrequency domain hybrid relaxation methodcompensation element
 Summary | Full Text:PDF

Iterative Middle Mapping Learning Algorithm for Cellular Neural Networks
Chen HE Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/04/25
Vol. E77-A  No. 4  pp. 706-715
Type of Manuscript:  PAPER
Category: Neural Networks
Keyword: 
cellular neural networksassociative memorylearning algorithm
 Summary | Full Text:PDF

A Modified Predictor-Corrector Tracing Curve Algorithm for Solving Nonlinear Resistive Circuits
Chen HE Akio USHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1991/06/25
Vol. E74-A  No. 6  pp. 1455-1462
Type of Manuscript:  Special Section PAPER (Special Issue on Nonlinear Theory and Its Applications)
Category: 
Keyword: 
 Summary | Full Text:PDF