IEEE Transactions on Circuits and Systems I: Regular Papers

Issue 12 • Dec. 2004

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Displaying Results 1 - 25 of 26
  • Table of contents

    Publication Year: 2004, Page(s):c1 - c4
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  • IEEE Transactions on Circuits and Systems–I: Regular Papers publication information

    Publication Year: 2004, Page(s): c2
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  • In Memoriam

    Publication Year: 2004, Page(s):2341 - 2344
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  • Modeling and evaluation of positive-feedback source-coupled logic

    Publication Year: 2004, Page(s):2345 - 2355
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB) | HTML iconHTML

    Positive feedback source-coupled logic (PFSCL) is proposed as an alternative logic style to traditional SCL logic, which is often used in high-resolution mixed-signal integrated circuits. Positive feedback allows for significantly reducing the NMOS transistors' aspect ratio compared to traditional single-ended SCL gates for equal values of design constraints. The resulting reduction in NMOS parasi... View full abstract»

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  • Low jitter and multirate clock and data recovery circuit using a MSADLL for chip-to-chip interconnection

    Publication Year: 2004, Page(s):2356 - 2364
    Cited by:  Papers (20)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1296 KB) | HTML iconHTML

    A fully integrated clock and data recovery circuit (CDR) using a multiplying shifted-averaging delay locked loop and a rate-detection circuit is presented. It can achieve wide range and low jitter operation. A duty-cycle-insensitive phase detector is also proposed to mitigate the dependency on clock duty cycle variations. The experimental prototype has been fabricated in a 0.25-μm 1P5M CMOS tec... View full abstract»

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  • Gain and offset mismatch calibration in time-interleaved multipath A/D sigma-delta modulators

    Publication Year: 2004, Page(s):2365 - 2373
    Cited by:  Papers (25)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB) | HTML iconHTML

    We propose a digital background adaptive calibration technique for correcting offset and gain mismatches in time-interleaved multipath analog-digital (A/D) sigma-delta (ΣΔ) modulators. The proposed technique allows us to cancel the spurious tones introduced by offset and gain mismatches among the paths only by processing the digital output, without interfering with the operation of the... View full abstract»

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  • A wideband frequency-shift keying wireless link for inductively powered biomedical implants

    Publication Year: 2004, Page(s):2374 - 2383
    Cited by:  Papers (147)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1064 KB) | HTML iconHTML

    A high data-rate frequency-shift keying (FSK) modulation protocol, a wideband inductive link, and three demodulator circuits have been developed with a data-rate-to-carrier-frequency ratio of up to 67%. The primary application of this novel FSK modulation/demodulation technique is to send data to inductively powered wireless biomedical implants at data rates in excess of 1 Mbps, using comparable c... View full abstract»

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  • A biomimetic VLSI sensor for visual tracking of small moving targets

    Publication Year: 2004, Page(s):2384 - 2394
    Cited by:  Papers (62)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1024 KB) | HTML iconHTML

    Taking inspiration from the visual system of the fly, we describe and characterize a monolithic analog very large-scale integration sensor, which produces control signals appropriate for the guidance of an autonomous robot to visually track a small moving target. This sensor is specifically designed to allow such tracking even from a moving imaging platform which experiences complex background opt... View full abstract»

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  • Design and simulation of a nanoelectronic single-electron universal Fredkin gate

    Publication Year: 2004, Page(s):2395 - 2403
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1400 KB) | HTML iconHTML

    A single-electron universal Fredkin gate (F-gate) is presented in this paper. Bits of information are represented by the presence or absence of single electrons at conducting islands. The logic operation of the F-gate as well as its AND, OR, and NOT operation is verified using simulation. The stability of its universal operation is analyzed using a Monte Carlo method. Stability analysis using free... View full abstract»

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  • Analysis of the PLL jitter due to power/ground and substrate noise

    Publication Year: 2004, Page(s):2404 - 2416
    Cited by:  Papers (54)  |  Patents (61)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (944 KB) | HTML iconHTML

    Phase-locked loops (PLL) in radio-frequency (RF) and mixed analog-digital integrated circuits (ICs) experience substrate coupling due to the simultaneous circuit switching and power/ground (P/G) noise which translate to a timing jitter. In this paper. an analysis of the PLL timing jitter due to substrate noise resulting from P/G noise and large-signal switching is presented. A general comprehensiv... View full abstract»

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  • Performance optimization of critical nets through active shielding

    Publication Year: 2004, Page(s):2417 - 2435
    Cited by:  Papers (15)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1688 KB) | HTML iconHTML

    We propose the concept of active shields-shields that switch concurrently with a signal wire of interest. Active shields aid signal transitions through the coupling between the signal wire and shields. For RC dominated wires, the active shields switch in the same phase as the signal wire since capacitive coupling is the dominant coupling mechanism. For wires with dominant inductive coupling, activ... View full abstract»

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  • A digital power spectrum estimation method for the adaptation of high-speed equalizers

    Publication Year: 2004, Page(s):2436 - 2443
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (696 KB) | HTML iconHTML

    This work presents a method to estimate the power spectrum of digital signals, which is then used to generate an error signal to tune Gbps data rate equalizers for digital communications. The proposed power spectrum estimation method can be realized with standard digital circuits and has been fabricated and tested in 0.35-μm CMOS technology for 1-Gbps data rate. Compared with the traditional ba... View full abstract»

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  • The design and multiplier-less realization of software radio receivers with reduced system delay

    Publication Year: 2004, Page(s):2444 - 2459
    Cited by:  Papers (61)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2344 KB) | HTML iconHTML

    This work studies the design and multiplier-less realization of a new software radio receiver (SRR) with reduced system delay. It employs low-delay finite-impulse response (FIR) and digital allpass filters to effectively reduce the system delay of the multistage decimators in SRRs. The optimal least-square and minimax designs of these low-delay FIR and allpass-based filters are formulated as a sem... View full abstract»

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  • Absolute stability of analytic neural networks: an approach based on finite trajectory length

    Publication Year: 2004, Page(s):2460 - 2469
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB) | HTML iconHTML

    A neural network (NN) is said to be convergent (or completely stable) when each trajectory tends to an equilibrium point (a stationary state). A stronger property is that of absolute stability, which means that convergence holds for any choice of the neural network parameters, and any choice of the nonlinear functions, within specified and well characterized sets. In particular, the property of ab... View full abstract»

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  • A frequency aliasing approach to chaos-based cryptosystems

    Publication Year: 2004, Page(s):2470 - 2475
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB) | HTML iconHTML

    In this paper, a chaos-based cryptosystem using sampled chaos signals with frequency-domain aliasing is proposed. In this scheme, a higher degree of randomness of the running-key sequence is obtained, and an additional random seed consisting of the sampling frequency as the parameter is introduced. This leads to an enhancement of the cryptosystem security. Numerical and simulation results of a Lor... View full abstract»

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  • Design and analysis of multiscroll chaotic attractors from saturated function series

    Publication Year: 2004, Page(s):2476 - 2490
    Cited by:  Papers (187)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2184 KB) | HTML iconHTML

    This paper initiates a saturated function series approach for chaos generation. The systematic saturated function series methodology developed here can create multiscroll chaotic attractors from a three-dimensional (3D) linear autonomous system with a simple saturated function series controller, including one-directional n-scroll, two-directional n×m-grid scroll, and 3-D n×m×l-gr... View full abstract»

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  • Synchronization of coupled connected neural networks with delays

    Publication Year: 2004, Page(s):2491 - 2503
    Cited by:  Papers (225)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB) | HTML iconHTML

    We investigate synchronization of an array of linearly coupled identical connected neural networks with delays; Variational method is used to investigate local synchronization. Global exponential stability is studied, too. We do not assume that the coupling matrix A is symmetric or irreducible. The linear matrix inequality approach is used to judge synchronization with global convergence property. View full abstract»

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  • Statistical properties of the LMS fourier analyzer in the presence of frequency mismatch

    Publication Year: 2004, Page(s):2504 - 2515
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1032 KB) | HTML iconHTML

    The statistical performances of the conventional adaptive Fourier analyzers, such as the least mean square (LMS), the recursive least square (RLS) algorithms, and so forth, may degenerate significantly, if the signal frequencies given to the analyzers are different from the true signal frequencies. This difference is referred to as frequency mismatch (FM). We analyze extensively the performance of... View full abstract»

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  • Corrections to “Design of Two-Dimensional Recursive Filters Using Genetic Algorithms”

    Publication Year: 2004, Page(s): 2516
    Cited by:  Papers (2)
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  • 2005 IEEE International Symposium on Circuits and Systems (ISCAS 2005)

    Publication Year: 2004, Page(s): 2517
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  • Special issue on biomedical circuits and systems: A new wave of technology

    Publication Year: 2004, Page(s): 2518
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  • IEEE Transactions on Circuits and Systems—I: Regular Papers Information for authors

    Publication Year: 2004, Page(s): 2519
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  • 2004 Index

    Publication Year: 2004, Page(s):2520 - 2554
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  • Have you visited lately? www.ieee.org [advertisement]

    Publication Year: 2004, Page(s): 2555
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  • Celebrating the vitality of technology the Proceedings of the IEEE

    Publication Year: 2004, Page(s): 2556
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Aims & Scope

The theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing.

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Meet Our Editors

Editor-in-Chief
Andreas Demosthenous
Dept. Electronic & Electrical Engineering
University College London
London WC1E 7JE, UK