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Electrical and Computer Engineering, 1997. Engineering Innovation: Voyage of Discovery. IEEE 1997 Canadian Conference on

25-28 May 1997

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  • CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings

    Publication Year: 1997
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  • Trajectory Control Of Robotic Manipulators Using The Optimal Control Method

    Publication Year: 1997, Page(s):458 - 461
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (218 KB)

    First Page of the Article
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  • Authors index

    Publication Year: 1997, Page(s):1 - 6
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  • Analog circuit design using amorphous silicon thin film transistors

    Publication Year: 1997, Page(s):633 - 636 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Amorphous silicon thin film transistors (TFTs) can be important circuit elements in large area imaging sensors because of their advantageous material and optical properties. These TFTs bring with them a gate-bias-induced threshold voltage (VT) shift, which is a highly undesirable effect for analog circuits. This paper addresses two techniques for reducing the effect of VT shi... View full abstract»

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  • Hilbert-Peano curve descriptions of layouts for contact resistance test structures in CMOS

    Publication Year: 1997, Page(s):629 - 632 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    An algorithm based upon Hilbert-Peano curves is presented for generating contact resistance test measurement layouts. The resulting contact chain path contains an excellent distribution of segment orientations, and uses all available test points within a grid. L-systems are presented as a useful way to program the layout of the contact chain expressed as strings. Using a mathematically defined spa... View full abstract»

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  • EMI levels at a “patient care location” in a hospital

    Publication Year: 1997, Page(s):625 - 628 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    Electromagnetic interference (EMI) has the potential to cause malfunctions of electronic based medical equipment including incubators, ventilators and pacemakers. The Canadian Standard Association (CSA) standard 232.2-M89 requires that the patient beds should be surrounded by a 1.5 metre “Patient Care Location” wherein only medical-grade electrical devices are permitted. Non-medical de... View full abstract»

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  • Modelling assemblies of biological cells exposed to electric fields

    Publication Year: 1997, Page(s):621 - 624 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    The interaction mechanisms of electromagnetic (EM) fields at very low frequencies remain elusive. To better understand the behaviour of cells in EM fields, the authors model configurations of gap-junction connected cells using the finite element method. Their results verify simplified models used to estimate transmembrane potential in chains of gap-connected cells, and suggest that more complex mo... View full abstract»

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  • Generalized fractal-wavelet transforms for image representation and compression

    Publication Year: 1997, Page(s):490 - 495 vol.2
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (964 KB)

    In this paper a set of generalized 2D fractal-wavelet transforms is introduced. Their primary difference from the usual transforms lies in treating “horizontal”, “vertical” and “diagonal” quadtrees independently. Although more parameters are required, the added flexibility makes it quite tractable for image compression. Even the possibility of independent scalin... View full abstract»

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  • Computer graphics and imaging tools for the assessment and treatment of spinal deformities

    Publication Year: 1997, Page(s):618 - 620 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    Describes computer graphics and imaging tools developed for the assessment and treatment of back deformities; in particular those caused by idiopathic scoliosis. 3D data is obtained by applying photogrammetric and image extraction algorithms to images obtained from stereo CCD television cameras. This data is used two create a 3D model of the back surface. This model is used clinically to assess sc... View full abstract»

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  • Design and implementation of a BISD scheme

    Publication Year: 1997, Page(s):728 - 731 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    This paper describes the design and implementation of a novel built-in self-diagnosis (BISD) scheme for IC-level scan-based circuits. The proposed scheme is capable of identifying all flip-flops that have captured erroneous circuit responses during a test, independent of the number of errors in the circuit response sequences and the number of defects in a circuit View full abstract»

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  • Fractal-based techniques in image compression

    Publication Year: 1997, Page(s):486 - 489 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (596 KB)

    First we briefly review the theory of IFS fractals and their use in generating and compressing images. Next we discuss the use of mixed fractal-wavelet methods in order to try to remove some of the unpleasant “blocking” artifacts introduced by the standard fractal methods. Finally, we discuss the relation between the pure fractal methods and the mixed fractal-wavelet methods View full abstract»

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  • Image analysis with Zernike moment descriptors

    Publication Year: 1997, Page(s):700 - 703 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    The discretization error analysis for the Zernike moment computing is carried out. Based on the proposed new techniques to increase the numerical accuracy of the Zernike moments, the image reconstruction power of Zernike moment descriptors is examined View full abstract»

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  • Performance evaluation of a multiprocessor SCP for intelligent network services

    Publication Year: 1997, Page(s):804 - 807 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    In this paper we give a general description of the intelligent network (IN) and study a service control point (SCP) architecture in which multiple call processors participate to IN call/service processing. The SCP is the core physical entity of the IN architecture and is dedicated to process IN calls under stringent real-time requirements. We show, by means of simulations, that with the increasing... View full abstract»

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  • Hybrid schemes simulation for ATM flow control

    Publication Year: 1997, Page(s):582 - 585 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    Flow control is one of the mechanisms employed to prevent and manage the congestion in ATM networks. Rate-based flow control and credit-based flow control are the two best known schemes. None of those mechanisms satisfies entirely the requirements of flow control for LAN and WAN environments simultaneously, but each one has key advantages. This situation originated proposals for integrated rate-cr... View full abstract»

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  • An electromagnetic posture measurement system for the treatment of scoliosis

    Publication Year: 1997, Page(s):614 - 617 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    An electromagnetic posture measurement system has been developed to measure topographical features of a human trunk. The system consists of an electromagnetic transmitter and receivers and a data acquisition capability. The electromagnetic system measures the distance and angles of topographical features; the data acquisition system analyses the data and provides feedback to the subject about body... View full abstract»

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  • Sensorless permanent magnet synchronous motor drives

    Publication Year: 1997, Page(s):878 - 883 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    Permanent magnet (PM) synchronous motors are gaining wide recognition over other types of motors in drive systems, mainly due to their inherently advantageous features. For successful operation of PM motor drives, position and speed sensing are of critical importance. Due to the drawbacks of conventional sensors the speed and position sensorless PM motor drive draws wide attention. In this paper, ... View full abstract»

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  • CAD for verification testing

    Publication Year: 1997, Page(s):724 - 727 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    Recently, the Canadian Microelectronics Corporation published a favoured design-flow and tool-set for the rapid prototyping of digital systems. The tool-set includes a spread-sheet like testing tool called the Control Panel from Mentor Graphics. This paper examines Control Panel features that support verification testing. A derivative of the Mead and Conway traffic-light controller is used to demo... View full abstract»

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  • Multichannel filters in television image processing

    Publication Year: 1997, Page(s):688 - 691 vol.2
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    A new filtering approach is introduced in this paper. The proposed multichannel filter can be used to remove impulsive noise and other impairments from colour TV signals. Due to its inherent parallel structure and high regularity, the new filter is perfectly suitable for real time implementation and it can be implemented using array processors on VLSI hardware. With the advent of the all-digital T... View full abstract»

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  • Safety analysis in real-time system using constraint logic programming

    Publication Year: 1997, Page(s):399 - 402 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    The paper is concerned with the verification of the timing safety properties of real time systems. Using CLP (BNR) Prolog, we show how constraint logic programming based on relational interval arithmetic can provide a much simpler analysis technique than some previous graph theoretic approaches to the problem of verifying a timing property with respect to a system specification. Both the property ... View full abstract»

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  • Reducing the order of fuzzy logic controllers based on control surface rotation

    Publication Year: 1997, Page(s):785 - 787 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    This paper presents a novel approach to simplify the design of a fuzzy logic controller. The proposed approach is based on control surface rotation which reduces the order of the fuzzy logic controller structure. Such an order reduction decreases the number of rules by an order of magnitude. This simplifies the tuning and organizing processes of the fuzzy logic controller View full abstract»

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  • Digital recording system for high-resolution radar

    Publication Year: 1997, Page(s):843 - 846 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    This paper describes some of the issues that arise in the design of a radar recording system. Typically such systems require the simultaneous capture and archival of large amounts of data from multiple sources and media. The data must be captured, combined and archived together in a way that makes accurate reproduction possible. The proposed design can be implemented in Windows/NT using readily av... View full abstract»

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  • Hybrid acquisition scheme for CDMA systems: a new perspective

    Publication Year: 1997, Page(s):482 - 485 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    A new hybrid search scheme for the initial acquisition of a long spread spectrum code composed of shorter concatenated signature codes is introduced. The new search scheme inherently contains a verification mode, thus eliminating the need of a separate verification process. We introduce a new concatenated signature coding and a new parallel acquisition scheme. Simulation results of the performance... View full abstract»

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  • Implementation issues for half-bridge and full-bridge active filters in single phase applications

    Publication Year: 1997, Page(s):544 - 547 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Active filters are becoming a more and more effective means of eliminating harmonic currents generated by nonlinear loads in distribution systems. In single phase applications two topologies are available: (a) half-bridge, and (b) full-bridge. This paper focuses on the relative merits of both topologies. The performance of each topology is investigated. A detailed analysis is included to highlight... View full abstract»

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  • A PLD-controlled multi-speed drive circuit for small electric vehicles

    Publication Year: 1997, Page(s):757 - 760 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    The core of control circuits for electric motors based on the pulse width modulation (PWM) principle can be realized using discrete analog or digital logic devices, microprocessors or dedicated mixed signal circuits. This paper describes a method based on a programmable logic device (PLD). The PLD follows a state machine concept and controls the bi-directional flow of energy between the source (e.... View full abstract»

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  • Machine intelligence realised in a FPGA for smart sensor research

    Publication Year: 1997, Page(s):672 - 675 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    This paper explores the concept of machine intelligence required for the smart sensor environment. The increasing complexity of the hardware requirements for smart sensor applications has led to the inclusion of field programmable gate arrays, FPGA, in the design of these systems. Two main advantages can be capitalized on with this approach, based on the characteristics of the FPGAs. Firstly, the ... View full abstract»

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