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Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on

May 30 1999-June 2 1999

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Displaying Results 1 - 25 of 129
  • IEEE International Symposium on Circuits and Systems [front matter]

    Publication Year: 1999, Page(s):0_1 - liv
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    Freely Available from IEEE
  • Athor index

    Publication Year: 1999, Page(s):515 - 527
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    Freely Available from IEEE
  • A multilevel modulation scheme for high-speed wireless infrared communications

    Publication Year: 1999, Page(s):338 - 341 vol.6
    Cited by:  Papers (18)  |  Patents (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    To investigate short-distance, point-to-point, infrared channels, a test-bench and circuits were constructed to determine the limitations of existing optoelectronics. The results of these measurements are used to formulate a channel model which is employed for the subsequent analysis of candidate bandwidth efficient modulation schemes. A new multilevel modulation scheme, Adaptively Biased QAM (AB-... View full abstract»

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  • A modular digital VLSI architecture for stereo depth estimation in industrial applications

    Publication Year: 1999, Page(s):481 - 484 vol.6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

    In this paper a modular architecture for real time stereo depth estimation is synthesized. The elaboration is described in terms of the action of a set of sub-processors working in parallel. Such modules have been implemented using proper mechanism to reduce their complexity. Simulations on real and synthetic images are presented and real-time performance evidenced View full abstract»

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  • A dedicated hardware system for CNN stereo vision

    Publication Year: 1999, Page(s):501 - 504 vol.6
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    The stereo vision algorithm is a very promising technique in autonomous robotics to sense the environment. A successful implementation of this algorithm on Cellular Neural Networks (CNN) has been proposed. In this paper an analogue CNN hardware system able to perform such an algorithm is presented. This new system will be installed directly onto the robot and plays the role of a parallel analogue ... View full abstract»

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  • Circuit modeling to predict the performance of force-cooled cold plate structures

    Publication Year: 1999, Page(s):105 - 108 vol.6
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    The electronic circuit simulator PSpice can provide the means of obtaining numerical nonanalytic solutions to thermal heat flow problems which would otherwise be difficult or impossible to derive. Rules for relating physical heat flow parameters to equivalent distributed lossy transmission line parameters are derived. This method for numerical evaluation of the heat dissipating performance of comp... View full abstract»

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  • Lower bounds on energy dissipation and noise-tolerance for deep submicron VLSI

    Publication Year: 1999, Page(s):334 - 337 vol.6
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    In this paper, we obtain the lower bounds on total energy dissipation of deep submicron (DSM) VLSI circuits via an information-theoretic framework. This framework enables the derivation of lower bounds under the constraint of reliable operation in presence of DSM noise. We employ noise-tolerance via coding to approach the lower bounds on energy dissipation. It is shown that the lower bounds on ene... View full abstract»

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  • CMOS gate modeling based on equivalent inverter

    Publication Year: 1999, Page(s):234 - 237 vol.6
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    A method for modeling complex CMOS gates by the reduction of each gate to an effective equivalent inverter is introduced. The conducting and parasitic behavior of parallel and serially connected transistors is accurately analyzed and an equivalent transistor is extracted for each case, taking into account the actual operating conditions of each device in the structure. The accuracy of the method i... View full abstract»

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  • Proving the existence of periodic solutions using global interval Newton method

    Publication Year: 1999, Page(s):294 - 297 vol.6
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    In this paper we introduce the global interval Newton method and investigate the possibility of using this method for proving the existence of periodic orbits in continuous-time dynamical systems. We compare this method with a standard version of the interval Newton method. As an example we consider a simple third order electronic circuit for which we prove the existence of several unstable period... View full abstract»

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  • Advanced instrument controller ASIC

    Publication Year: 1999, Page(s):478 - 480 vol.6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    In this paper, a ruggedized ultra-low power 16 Mhz 8051-based data acquisition and control microcontroller ASIC with modest data processing capability designed and fabricated in National Semiconductor's 0.35 micron 3-level metal CMOS7 technology is presented. The Advanced Instrument Controller 8051 (AIC51) was designed for the Mars Microprobe Mission or Deep Space 2 technology-validation mission i... View full abstract»

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  • Fast motion estimation using UESA, threshold-half-stop and adaptive partial sum scan from gradient magnitude

    Publication Year: 1999, Page(s):497 - 500 vol.6
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    In the fields of low bit rate coding and real time video coding, the three-step search (TSS) algorithm for fast motion estimation has played a key role because of its regularity, reasonable performance, and reduced amount of computation for searching the motion vector. In this work, a new fast TSS algorithm is proposed, which is based on UESA, half-stop method in matching pursuit and gradient-assi... View full abstract»

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  • A model for predicting sampler RF bandwidth and conversion loss

    Publication Year: 1999, Page(s):18 - 21 vol.6
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB)

    A simple model for predicting the RF bandwidth and conversion loss of a sampler from a given sampling switch conductance function is presented. The model is valid for any conductance function and for any relation between sampling pulse width and sampler time constant. As an example, the model is here applied to the case with a linearly rising/falling sampling switch conductance function and differ... View full abstract»

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  • Nonlinear signal processor design: a building block approach

    Publication Year: 1999, Page(s):101 - 104 vol.6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    A new approach for the design of nonlinear systems (signal processors) based on an entirely new and interesting paradigm is presented in this paper. It is similar in spirit to the neural net paradigm (learn from existing systems) or the object oriented approach that has now become standard in software engineering and, in fact, takes it one step further as explained in the paper. This approach, tho... View full abstract»

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  • A high-speed residue-to-binary converter and a scheme for its VLSI implementation

    Publication Year: 1999, Page(s):330 - 333 vol.6
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    In this paper, a high-speed residue-to-binary converter for the recently introduced moduli set (2k, 2k-1, 2k-1-1) is proposed. Compared to the previous converter based on this moduli set, the proposed one is 40% faster; also, the time-complexity product is improved by 20%. Following the VLSI design flow established by the Canadian Microelectronics Corporation, the ... View full abstract»

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  • Evaluating iterative improvement heuristics for bigraph crossing minimization

    Publication Year: 1999, Page(s):444 - 447 vol.6
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    The bigraph crossing problem, embedding the two node sets of a bipartite graph G=(V0, V1, E) along two parallel lines so that edge crossings are minimized, has application to placement optimization for standard cells and other technologies. Iterative improvement heuristics involve repeated application of some transformation on an existing feasible solution to obtain better fe... View full abstract»

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  • Modeling and parameter extraction technique for high-voltage MOS device

    Publication Year: 1999, Page(s):230 - 233 vol.6
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    This paper presents a novel technique for modeling HV MOS devices accurately with the BSIM3v3 SPICE model. We assign different meanings from the original BSlM3v3 to three parameters. The simulated I-V characteristics using the extracted parameters match the measured results well, and the physical mechanism of HV MOS devices is clarified based on device simulations. Since our method does not change... View full abstract»

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  • Simple implementations of homotopy algorithms for finding DC solutions of nonlinear circuits

    Publication Year: 1999, Page(s):290 - 293 vol.6
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    We describe simple software implementations of parameter embedding (also called continuation and homotopy) algorithms for calculating DC operating points of nonlinear circuits. Past implementation of homotopy algorithms in industrial circuit simulators proved that thy were viable options to resolving convergence difficulties when finding circuits' DC operating points. These software implementation... View full abstract»

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  • Co-verification as risk management: minimizing the risk of incorporating a new processor in your next embedded system design

    Publication Year: 1999, Page(s):474 - 477 vol.6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    According to EE-Times over 60% of current 8-bit and 16-bit users are considering moving to 32-bit embedded controllers. However, many development teams are not able to accurately assess the impact to the project schedule of adopting a new processor. New busses, peripherals and a more complex initialization sequence increase the project risk, especially when few engineers on the team have experienc... View full abstract»

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  • Interference reduction in nerve cuff electrode recordings-a new approach

    Publication Year: 1999, Page(s):493 - 496 vol.6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    A method is presented to reduce the interference pickup in nerve cuff recordings. The gains of differential amplifiers connected to the true tripole nerve cuff arrangement are tuned adaptively to null the residual EMG. Simulation results show that extraction of the neural signal is possible using this method without the need for high order filtering View full abstract»

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  • Analysis of the periodic steady-state in nonlinear circuits using an adaptive function base

    Publication Year: 1999, Page(s):1 - 4 vol.6
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    In this paper, we introduce a method for the analysis of the periodic steady-state in nonlinear circuits, performing well even in cases, where the harmonic balance (HE) is unsuited. A series expansion of the state variables with a self-adaptive function base is essential. This results in approximations with few parameters and therefore in a small computational effort. Examples validate the method ... View full abstract»

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  • A modified univariate search algorithm

    Publication Year: 1999, Page(s):306 - 309 vol.6
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    This paper describes a modified univariate search algorithm that overcomes two major limitations of conventional univariate search method. It minimizes the probability of premature convergence to poor local minima by utilizing a non-deterministic search procedure based on an analogy with the analytical univariate search, and improves' the quality of solutions by dealing with populations of solutio... View full abstract»

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  • Steady states prediction in nonlinear circuit by wavelet transform

    Publication Year: 1999, Page(s):14 - 17 vol.6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    This paper presents a method to predict steady state oscillations from transient waveforms in a circuit. As a tool, we use Haar wavelet. We predict if the periodic oscillation is sustained or not from the transient state. We apply the method to 1/3-subharmonic oscillation in a nonlinear RLC series resonance circuit and show the possibility of steady states prediction View full abstract»

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  • Reliability driven module generation for analog layouts

    Publication Year: 1999, Page(s):412 - 415 vol.6
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    In this paper new features of a module generator environment will be presented for reliability improvements in analog circuit layouts. The reliability of analog layouts is improved by an automatic check of electrical constraints like electromigration and voltage drop due to interconnection resistances after the modules have been generated. If a check failed constraints are automatically added and ... View full abstract»

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  • New low-power low-voltage high-CMRR CMOS instrumentation amplifier

    Publication Year: 1999, Page(s):97 - 100 vol.6
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    A new low-power low-voltage high CMRR CMOS instrumentation amplifier is developed for biomedical applications. It constitutes a part of an implantable nerve signal recording system. The new design saves expensive resistor trimming by using current mirrors instead of a resistor network. It has been integrated in a CMOS 0.35 μm technology and realizes a very high CMRR up to 120 dB and low-power c... View full abstract»

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  • Grade of service Euclidean Steiner minimum trees

    Publication Year: 1999, Page(s):182 - 185 vol.6
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    In this paper, we study the grade of service Steiner tree (GOSST) problem-a generalization of the Euclidean Steiner minimum tree problem. We present efficient approximation algorithms for the special cases where there are only two or three grades of service requests. We also present an exact algorithm and a powerful 5-optimal heuristic algorithm for the general case, together with computational re... View full abstract»

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