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IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications

Issue 6 • Date Jun 1997

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Displaying Results 1 - 12 of 12
  • A new crosstalk compensation method in line inversion TFT-LCD's

    Publication Year: 1997, Page(s):552 - 555
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (104 KB)

    This brief presents a novel method to compensate a common electrode signal distortion caused by capacitive coupling between the data-lines and a common sheet electrode through a parasitic capacitor in TFT-LCD's. We designed a compensation circuit whose role is to give a negative feedback to the common electrode by detection of the amount of distortion and generation of the dependent voltage source... View full abstract»

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  • 2-D arithmetic Fourier transform using the Bruns method

    Publication Year: 1997, Page(s):546 - 551
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    The arithmetic Fourier transform (AFT) has been shown to perform competitively with the classical fast Fourier transform (FFT) in terms of accuracy, complexity, and speed. The new technique of calculating AFT based upon Bruns' method proved to be an advancement of the previous version of the arithmetic transformation, since it provides a more balanced scheme of computation of the even and odd coef... View full abstract»

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  • A CMOS quadrature modulator for wireless communication IC

    Publication Year: 1997, Page(s):559 - 561
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (84 KB)

    This brief presents a CMOS digital quadrature modulator, which is based on a CMOS digital modulator and a five-level digital-to-analog converter, for wireless communication IC. In the digital modulator, a circular shift register is used to produce a continuous sinusoidal wave with different phases. With this technique, the quadrature modulator has advantages in low power consumption, small area, a... View full abstract»

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  • Uniform approximation of multidimensional myopic maps

    Publication Year: 1997, Page(s):477 - 500
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    Our main result is a theorem that gives, in a certain setting, a necessary and sufficient condition under which multidimensional shift-invariant input-output maps with vector-valued inputs drawn from a certain large set can be uniformly approximated arbitrarily well using a structure consisting of a linear preprocessing stage followed by a memoryless nonlinear network. Noncausal as well as causal ... View full abstract»

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  • Nonparametric approach to Wiener system identification

    Publication Year: 1997, Page(s):538 - 545
    Cited by:  Papers (71)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    A Wiener system, i.e., a system consisting of a linear dynamic subsystem followed by a memoryless nonlinear one is identified. The system is driven by a stationary white Gaussian stochastic process and is disturbed by Gaussian noise. The characteristic of the nonlinear part can be of any form. The dynamic subsystem is asymptotically stable. The a priori information about both the impulse response ... View full abstract»

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  • Analysis of Chua's circuit with transmission line

    Publication Year: 1997, Page(s):556 - 558
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (120 KB)

    The purpose of this brief is that, by an application of the method of characteristics, we analyze chaotic phenomena in Chua's circuit with lossy transmission line. The transmission line is replaced by the equivalent lumped circuit and a time-delayed element so that it can be solved efficiently by the Runge-Kutta method. It is found from numerical experiments that the circuit has complicated and in... View full abstract»

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  • Digital coding via chaotic systems

    Publication Year: 1997, Page(s):562 - 565
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    The concept of time-discontinuous coupling of two identical chaotic systems called sporadic coupling is addressed. The conditions for the occurrence of synchronization between two sporadically coupled chaotic systems are given. Amplitude quantization of the driving signal in addition to the sporadic coupling allows digital exchange of digital information signals between the sporadically coupled ch... View full abstract»

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  • Qualitative analysis of the dynamics of the time-delayed Chua's circuit

    Publication Year: 1997, Page(s):486 - 500
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB)

    Several variants of the Chua's circuit have been recently proposed in order to enlarge the class of nonlinear phenomena that can be generated by relatively simple circuits. In particular, Sharkovsky et al. proposed the so called time-delayed Chua's circuit (TDCC), where the original lumped LC resonator is substituted by an ideal transmission line, thereby generating an infinite dimensional system,... View full abstract»

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  • Generalized iterative methods for enhancing contaminated chaotic signals

    Publication Year: 1997, Page(s):501 - 512
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    Generalized iterative methods for reducing noise in contaminated chaotic signals are proposed. These methods minimize a cost function composed of two parts: one containing information that represents how close enhanced signals are to the observed signal and another composed of constraints that fit the dynamics of the system. The convergence conditions and the error systems of the proposed methods ... View full abstract»

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  • Application of Newmann's principle to electromagnetic N-ports

    Publication Year: 1997, Page(s):513 - 520
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (164 KB)

    Application of Newmann's principle, well known in crystallography, to electromagnetic N-ports is demonstrated. Using this approach, it is possible to find those symmetrical structures which can be considered as candidates for implementation of the electromagnetic functions including the nonreciprocal ones. Starting from the ideal scattering matrix, a systematic procedure is suggested to find the s... View full abstract»

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  • An integrated analog/digital random noise source

    Publication Year: 1997, Page(s):521 - 528
    Cited by:  Papers (88)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB)

    An integrated noise source (INS) has been fabricated in a standard 1.2 μm digital CMOS technology. Wideband white noise is generated from the amplified thermal noise of large resistors, which in turn is coupled into a comparator to generate a random digital bit stream. The INS generates 100 mV rms of analog output noise over a bandwidth of 3.2 MHz and operates from a single 5 V power supply wit... View full abstract»

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  • Limit cycles in delta-operator formulated 1-D and m-D discrete-time systems with fixed-point arithmetic

    Publication Year: 1997, Page(s):529 - 537
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    In this paper, the problem of global asymptotic stability of δ-operator formulated one-dimensional (1-D) and multidimensional (m-D) discrete-time systems is analyzed for the case of fixed point implementations. It is shown that the free response of such a system tends to produce improper equilibrium points if conventional quantization arithmetic schemes such as truncation or rounding are use... View full abstract»

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