By Topic

Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on

Date 2-5 Sept. 2001

Go

Filter Results

Displaying Results 1 - 25 of 128
  • ICECS 2001. 8th IEEE International Conference on Electronics, Circuits and Systems (Cat. No.01EX483)

    Publication Year: 2001
    Request permission for commercial reuse | PDF file iconPDF (1683 KB)
    Freely Available from IEEE
  • An ultra high-speed compressor for packet networks

    Publication Year: 2001, Page(s):1259 - 1263 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (435 KB) | HTML iconHTML

    A main characteristic of the widely used packet networks is that its switches/routers should be fairly simple and inexpensive. As a result, a significant part of the network cost is in the cost of the links. So by increasing the network traffic we can send over a given link, we will certainly increase the effectiveness of the whole network. A way of increasing this traffic is to send compressed pa... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Author index

    Publication Year: 2001, Page(s):1643 - 1653
    Request permission for commercial reuse | PDF file iconPDF (533 KB)
    Freely Available from IEEE
  • A 0.35 μm CMOS DCS front-end with fully integrated VCO

    Publication Year: 2001, Page(s):1595 - 1598 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB) | HTML iconHTML

    The design of a 0.35 μm CMOS front-end is presented which meets the DCS requirements. The front-end consists of a low-noise amplifier operating at 1.85 GHz, a mixer downconverting the RF signal to an IF of up to 250 MHz, and a fully integrated voltage controlled oscillator with a tuning range of 460 MHz. The total power consumption is 34 mW with a 2.5 V supply, and the simulated maximum RF to I... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A direct-conversion BiCMOS mixer for GHz applications

    Publication Year: 2001, Page(s):1599 - 1602 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB) | HTML iconHTML

    This paper proposes a highly linear doubly-balanced mixer for gigahertz applications. Merits of the proposed folded-cascode BiCMOS mixer in comparison to prior-art have been made clear through analysis and simulations. The BiCMOS mixer is especially suitable for low-voltage direct-conversion modulator applications View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Electrocardiogram characterization using wavelet analysis

    Publication Year: 2001, Page(s):1367 - 1370 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB) | HTML iconHTML

    The electrocardiograph (ECG) is a graphical representation of the forces generated during cardiac activity, and is an essential tool for the diagnosis of cardiac abnormalities. An automatic ECG analyzer will provide a cardiologist with a tool allowing faster and more accurate diagnosis. The analysis consists of the measurement of the amplitudes, durations and morphologies of the P, QRS and T waves... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • SPU based microrobots: a new approach to the robotic world

    Publication Year: 2001, Page(s):1191 - 1194 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB) | HTML iconHTML

    A microrobot structure, based on piezoelectric materials that implements a new driving approach has been developed. This approach is based on the concept of Smart Piezoelectric Unit (SPU), that means the integration of the piezolectric actuator and its driving circuitry in the same package to be considered as an independent and compact unit, which can be used to build, as a single and primary elem... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Neural system for military target detection

    Publication Year: 2001, Page(s):1359 - 1362 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB) | HTML iconHTML

    Reports on a new approach to detecting military targets. The novel idea is based on combining neural network arbitration and scale space analysis to automatically select one optimum scale for the entire image at which target detection can be applied. This new approach to edge detection is formalized in the (AEDS) automatic edge detection scheme View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A neural expert system concept applied to diagnostics

    Publication Year: 2001, Page(s):1301 - 1304 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB) | HTML iconHTML

    Constructed by the authors, the neural expert system applied to diagnostics is presented. The system consists of a rule expert system and a neural expert system, based on a three layer backpropagation neural network. It is used to diagnose a radar set. To code the knowledge, a suitable representation language is proposed. As an example, network learning results for selected rules are presented View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Generalized symmetric variables

    Publication Year: 2001, Page(s):1147 - 1150 vol.3
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB) | HTML iconHTML

    Symmetric variables have been used extensively to simplify design and synthesis of digital circuits. Methods to detect symmetric variables as well as special methods for synthesis and design of highly symmetric functions have been continuously investigated. In this paper the author identifies and describes new, generalized symmetric relations between variables of Boolean functions. A method to det... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The mechanical and control system design of a dexterous robotic gripper

    Publication Year: 2001, Page(s):1195 - 1201 vol.3
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB) | HTML iconHTML

    The design and development of dexterous robotic end effectors has been an active research area for a long while. This paper reviews the design and construction of a versatile robotic gripper used to grasp objects of arbitrary shape, size and weight. This is achieved through a mechanical design that incorporates multiple fingers and multiple joints per finger, through the installation of proximity ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Text analysis for the Slovenian text-to-speech system

    Publication Year: 2001, Page(s):1355 - 1358 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB) | HTML iconHTML

    At the "Jozef Stefan" Institute a system called GOVOREC (SPEAKER) has been developed, which is capable of automatic conversion of any Slovenian text into speech. The different phases of the synthesis task are performed by several sequentially operating independent modules (text analysis, prosody generation and segmental concatenation), which are pipelined together. Each module is responsible for o... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A 250-MHz, 32-bit quantum MOS correlator prototype

    Publication Year: 2001, Page(s):1501 - 1504 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB) | HTML iconHTML

    Simulation results of Quantum MOS circuits comprising resonant-tunneling diodes (RTDs) and MOSFETs indicate greater than twofold improvement in power-delay product over CMOS. However, the challenges of co-integrating RTDs and CMOS devices have not been completely overcome yet, leaving the testing of RTD-CMOS circuit ideas to be accomplished by either simulation, or by electrically connecting discr... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Space-time diversity applied to single-user environments and MIMO transmission channels

    Publication Year: 2001, Page(s):1179 - 1182 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB) | HTML iconHTML

    This paper presents a closed solution to the problem of designing a single-user communication system considering the use of space-time diversity at both the transmitter and receiver sides, that is, a Multi-Input-Multi-Output (MIMO) structure. Three different design criteria and algorithms are considered: Matched-Desired Impulse Response, Minimum Mean Square Error and Zero Forcing. A technique for ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A novel low-voltage floating-gate CMOS transconductance amplifier with sinh (tanh) shaped output current

    Publication Year: 2001, Page(s):1461 - 1464 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB) | HTML iconHTML

    Presents an ultra low-voltage (ULV) floating-gate (FG) transconductance amplifier. The amplifier can operate at supply voltages down to 0.3 V in a standard digital double poly CMOS process. The amplifier consists of three subcircuits, the single input analog FG inverter, the additive (double input) analog FG inverter with tunable gain and a FG digital inverter. Simulated data for the transconducta... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Low-voltage CMOS current operational amplifier with class AB input stage

    Publication Year: 2001, Page(s):1525 - 1528 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB) | HTML iconHTML

    A CMOS current operational amplifier (COA) which can be operated from a minimum supply voltage of VT+3VDS,SAT is presented. Unlike previous low-voltage solutions operating in class A, the proposed one employs a class AB input stage that enhances slew-rate performance and provides accurate control of both quiescent currents and input bias voltage. A design example is implement... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An effective procedure for multi-tone steady-state analysis of mixers

    Publication Year: 2001, Page(s):1449 - 1453 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB) | HTML iconHTML

    The method of harmonic balance provides efficient and accurate simulation of nonlinear circuits under multi-tone excitation. Mixers are an important practical example of such circuits. Modern implementation of harmonic balance uses pre-conditioned iterative methods to solve the large linear system needed at each iteration of the nonlinear solver. This paper presents a rigorous and concise formulat... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • State-space equations of regular and strictly topologically degenerate linear lumped time-invariant networks: the implicit tree-tableau method

    Publication Year: 2001, Page(s):1139 - 1141 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB) | HTML iconHTML

    A new tree-based approach to the determination of the state-space equations of uniquely solvable regular and strictly topologically degenerate linear lumped time-invariant networks is presented. The elimination procedure is described in detail and final formulae are provided View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Study of the damping processes in thickness shear mode resonator chemical sensors

    Publication Year: 2001, Page(s):1517 - 1520 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB) | HTML iconHTML

    This work illustrates an alternative method of extracting signals from thickness shear mode resonator sensors. The basic idea consists of modulating the voltage supply of an oscillator circuit driven by a quartz element. The sensor signal can then be obtained measuring the time decay of the output signal in the off state, where some energy, stored in the on state, is released in the form of a damp... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Signal identification by nonlinear optimization

    Publication Year: 2001, Page(s):1151 - 1154 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB) | HTML iconHTML

    Deals with the use of nonlinear optimization techniques to solve the problem of signal identification. The presented idea considers cases when time series are composed of a finite number of nonlinear functions distinct in their parameter sets, and realizations of additive random error. The focus is on the sums of parameterized trigonometric functions. As the random error probability distribution i... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Novel noise shaping of cascaded sigma-delta modulator for wide bandwidth applications

    Publication Year: 2001, Page(s):1379 - 1382 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB) | HTML iconHTML

    In this paper, a novel noise shaping of cascaded sigma-delta modulators is proposed. Two stages are incorporated in this sigma-delta modulator. The first stage is realized by a feedforward architecture and the second stage is realized by a low-order single-loop architecture. Unlike the conventional feedforward sigma-delta architecture, we use a 1.5-bit quantizer in the feedback to substitute for t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Using a hardware coprocessor for message scheduling in fieldbus-based distributed systems

    Publication Year: 2001, Page(s):1485 - 1490 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB) | HTML iconHTML

    Fieldbus based distributed embedded systems used in real-time applications tend to be inflexible in what concerns changing operational parameters on-line. Recent techniques such as the planning scheduler can avoid this problem but do not show adequate responsiveness for automatic negotiation of parameter values. In this paper the use of ASIC based coprocessors for message scheduling is proposed to... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Signal detection and processing of seismic electromagnetic radiation in ELF band

    Publication Year: 2001, Page(s):1477 - 1480 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB) | HTML iconHTML

    In this paper, a new signal processing method appropriate for detecting electromagnetic radiation due to the earthquake activities was proposed. The radiation is usually accompanied by background noises, mainly caused by atmospheric discharges in the tropical regions. A full-band differentiating filter was applied for the received data as a preprocessing. The good performance was obtained to detec... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A step-size control for adaptive filters using a sign-based estimation of the normalized excess mean-squared error

    Publication Year: 2001, Page(s):1165 - 1169 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB) | HTML iconHTML

    A new estimation measure for the normalized excess MSE (mean-squared error) in adaptive system identification is presented in this paper. This measure, which is based on the signs of the filter update terms, allows one to directly derive an appropriate step size of the adaptive FIR filter. Its usefulness is demonstrated in-a step-size control for the LMS (least-mean-square) algorithm View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A wind sensor with an integrated low-offset instrumentation amplifier

    Publication Year: 2001, Page(s):1505 - 1508 vol.3
    Cited by:  Papers (12)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB) | HTML iconHTML

    A wind sensor with on-chip interface electronics has been implemented in a standard CMOS process. The sensor consists of a heated chip that is cooled non-uniformly by the wind. The resulting temperature gradient is measured by on-chip thermopiles, and from this information both wind speed and direction are determined. An on-chip chopper amplifier boosts the thermopile signals before they are trans... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.