IEEE Transactions on Circuits and Systems II: Express Briefs

Issue 6 • June 2006

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Displaying Results 1 - 25 of 25
  • Table of contents

    Publication Year: 2006, Page(s):c1 - c4
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  • IEEE Transactions on Circuits and Systems—II: Express Briefs

    Publication Year: 2006, Page(s): c2
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  • Low-power GS/s track-and-hold with 10-b resolution at Nyquist in SiGe BiCMOS

    Publication Year: 2006, Page(s):429 - 433
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (470 KB) | HTML iconHTML

    The brief presents the design and the implementation of a very-high speed track-and-hold amplifier (THA) for analog-digital converters with high input bandwidth. The THA is based on a half-bridge driving a switched-emitter follower. A lower power consumtpion and a simpler circuit architecture than previously reported bipolar implementations were achieved by means of circuit optimization. In partic... View full abstract»

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  • An alternative method for numerical inversion of Laplace transforms

    Publication Year: 2006, Page(s):434 - 437
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (251 KB) | HTML iconHTML

    Based on least-squares approximation of the rectangular pulse (Vilbeacute , 1999) by exponential functions, this brief presents an alternative method for performing numerical inversion of the Laplace transform. It compares favourably with the celebrated Vlach's method View full abstract»

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  • Considering noise orbital deviations on the evaluation of power density spectrum of oscillators

    Publication Year: 2006, Page(s):438 - 442
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (256 KB) | HTML iconHTML

    This brief presents a new application of the theory of noise in free running oscillators based on the Floquet eigenvector decomposition. In oscillators, all orbital deviations contribute to the power density spectrum (PDS) as much as the "phase" term, usually considered. Each orbital deviation component shows a time evolution depending on the related Floquet eigenvalue, which thus characterizes st... View full abstract»

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  • Crosstalk-insensitive via-programming ROMs using content-aware design framework

    Publication Year: 2006, Page(s):443 - 447
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (517 KB) | HTML iconHTML

    Various code patterns of a via-programming read only memory (ROM) cause significant fluctuations in coupling noise between bitlines (BLs). This crosstalk between BLs leads to read failure in high-speed via-programmable ROMs and limits the coverage of applicable code patterns. This work presents a content-aware design framework (CADF) for via-programming ROMs to overcome the crosstalk induced read ... View full abstract»

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  • A background calibration technique for multibit/stage pipelined and time-interleaved ADCs

    Publication Year: 2006, Page(s):448 - 452
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (304 KB) | HTML iconHTML

    A digital background calibration technique to compensate for the nonlinearity and gain error in the sub-digital-to-analog converter (SDAC), and the operational amplifier finite dc gain in multibit/stage pipelined analog-to-digital converter (ADC) is proposed. By injecting subtractive calibration voltages in a modified conventional multibit multiplying DAC and performing correlation based successiv... View full abstract»

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  • On the implementation of input-feedforward delta-sigma modulators

    Publication Year: 2006, Page(s):453 - 457
    Cited by:  Papers (52)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (231 KB) | HTML iconHTML

    This brief addresses some practical issues on the implementation of the input-feedforward delta-sigma modulators. First, the timing constraint imposed by the input-feedforward path is identified and a possible method to relax the constraint is proposed. Second, the drawbacks of the analog adder needed before the quantizer are explained and a method to eliminate the adder is proposed View full abstract»

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  • Exact and numerically stable closed-form expressions for potential coefficients of rectangular conductors

    Publication Year: 2006, Page(s):458 - 462
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (255 KB) | HTML iconHTML

    Existing exact closed-form expressions for the scalar mutual and self-potential coefficients for rectangular conductors may be ill-conditioned for certain geometries. We propose new, exact, closed-form expressions for potential coefficients that are much better-conditioned. The basic idea is to express all potential coefficients as weighted sums of mutual and self-potential coefficients of suitabl... View full abstract»

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  • A novel approach to the estimation of the long-range dependence parameter

    Publication Year: 2006, Page(s):463 - 467
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (206 KB) | HTML iconHTML

    A new method to estimate the Hurst parameter of certain classes of random processes is presented. This method applies to Gaussian processes that are either exactly second-order self-similar or fractional ARIMA. The case of the former is of special interest because local area network traffic is well-known to be of this form. Confidence intervals and bias are obtained for the estimates using the new... View full abstract»

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  • Decentralized control via disturbance attenuation and eigenstructure assignment

    Publication Year: 2006, Page(s):468 - 472
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (129 KB) | HTML iconHTML

    In this brief, a simple approach is proposed for decentralized control of linear large-scale systems. Sufficient conditions for diagonal dominance of closed-loop large-scale systems are derived. Based on these conditions, the interactions between the subsystems can be considered as external disturbances for each isolated subsystem. Then, a previously proposed approach is used to attenuate disturba... View full abstract»

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  • Further refinement on LMI-based digital redesign: delta-operator approach

    Publication Year: 2006, Page(s):473 - 477
    Cited by:  Papers (27)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (241 KB) | HTML iconHTML

    This paper sharpens the recently developed linear-matrix-inequality-based digital redesign (LMI-based DR) technique. The motivation comes from the fact that some unexpected state matching performance might be experienced as a sampling period approaches zero. To improve the state matching performance for that case, a refined LMI-based DR is proposed by using the delta operator that creates rapproch... View full abstract»

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  • Adaptive subsample delay estimation using windowed correlation

    Publication Year: 2006, Page(s):478 - 482
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (211 KB) | HTML iconHTML

    An on-line delay estimation algorithm based upon the windowed average magnitude difference function (AMDF) that is suitable for determining the subsample delay between two noisy signals is introduced. The new estimator uses the AMDF to directly update the delay estimate, which is in turn used to adapt the coefficients of a fractional delay filter (FDF). The new estimator consists predominately of ... View full abstract»

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  • A novel floating lossy inductance realization topology with NICs using current conveyors

    Publication Year: 2006, Page(s):483 - 486
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (235 KB) | HTML iconHTML

    A negative-impedance converter (NIC) is a useful component in the circuit synthesis theory especially for active RC filter design. In this brief, usefulness of the NIC is shown in a floating inductance realization topology that is an alternative application area for the component. A new floating parallel RL realization topology employing two NICs and three passive components is presented View full abstract»

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  • Pulse frequency modulation based CMOS image sensor for subretinal stimulation

    Publication Year: 2006, Page(s):487 - 491
    Cited by:  Papers (12)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1128 KB) | HTML iconHTML

    We have developed a CMOS image sensor based on pulse frequency modulation for subretinal implantation. The sensor chip forms part of the proposed intraocular retinal prosthesis system where data and power transmission are provided wirelessly from an extraocular unit. Image sensing and electrical stimulus are integrated onto the same chip. Image of sufficient resolution has been demonstrated using ... View full abstract»

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  • Motion estimation processor using mixed-signal approach

    Publication Year: 2006, Page(s):492 - 496
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1075 KB) | HTML iconHTML

    This paper describes the design, realization, and evaluation of a mixed-signal motion estimation processor using the full-search block-matching algorithm. The approach features digital I/O and a low-power, compact analog computational core. The proof-of-concept realization whose architecture incorporates pixel reuse, was fabricated in 0.8-mum CMOS technology occupying 0.65 mm2, and oper... View full abstract»

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  • A low-power inverted ladder D/a converter

    Publication Year: 2006, Page(s):497 - 501
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1032 KB) | HTML iconHTML

    Interpolating, dual resistor ladder digital-to-analog converters (DACs) typically use the fine, least significant bit (LSB) ladder floating upon the static most significant bit (MSB) ladder. The usage of the LSB ladder incurs a penalty in dynamic performance due to the added output resistance and switch matrix parasitic capacitance. Current biasing of the LSB ladder addresses this issue by employi... View full abstract»

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  • Improving the security of a dynamic look-up table based chaotic cryptosystem

    Publication Year: 2006, Page(s):502 - 506
    Cited by:  Papers (21)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (248 KB) | HTML iconHTML

    In this brief, we analyze the cause of vulnerability of the original dynamic look-up table based chaotic encryption scheme in detail, and then propose the corresponding enhancement measures. Theoretical analysis and computer simulation indicate that the modified scheme is more secure than the original one View full abstract»

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  • Convergence analysis of the cascade second-order adaptive line equalizer

    Publication Year: 2006, Page(s):507 - 511
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (736 KB) | HTML iconHTML

    The high-speed data transmission on a twisted pair cable suffers from frequency-dependent loss that causes significant inter-symbol interference. Although a first-order adaptive equalizer based on pole-zero cancellation is sufficient to compensate the limited bandwidth for relatively low data rate, a higher order equalizer is necessary for higher data rate. This brief proposes a cascade second-ord... View full abstract»

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  • Special issue on nanoelectronic circuits and nanoarchitectures

    Publication Year: 2006, Page(s): 512
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  • 2006 IEEE International Symposium on Circuits and Systems (ISCAS 2006)

    Publication Year: 2006, Page(s): 513
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  • IEEE Biomedical Circuits and Systems Conference healthcare technology (BioCAS 2006)

    Publication Year: 2006, Page(s): 514
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  • 49th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS 2006)

    Publication Year: 2006, Page(s): 515
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  • IEEE Transactions on Circuits and Systems—II: Information for authors

    Publication Year: 2006, Page(s): 516
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  • IEEE Circuits and Systems Society Information

    Publication Year: 2006, Page(s): c3
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Aims & Scope

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief

Chi K. Michael Tse
Dept. of Electronic and Information Engineering
Hong Kong Polytechnic University
Hunghom, Hong Kong
cktse@ieee.org