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TENCON '92. ''Technology Enabling Tomorrow : Computers, Communications and Automation towards the 21st Century.' 1992 IEEE Region 10 International Conference.

Date 11-13 Nov. 1992

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Displaying Results 1 - 25 of 211
  • TENCON '92. 'Technology Enabling Tomorrow' 1992 IEEE Region 10 International Conference. Computers, Communications and Automation towards the 21st Century (Cat. No.92CH3223-5)

    Publication Year: 1992
    Request permission for commercial reuse | PDF file iconPDF (27 KB)
    Freely Available from IEEE
  • Convergence of recursive image restoration algorithms

    Publication Year: 1992, Page(s):578 - 582 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB)

    Recursive image restoration is a powerful method for image restoration. Two-dimensional recursive filters usually require less computational time and storage requirements than nonrecursive algorithms and can handle space-variant blur easily. The convergent properties of a recursive algorithm, based on constrained deconvolution, are examined. Two versions of the algorithm are compared, and it is sh... View full abstract»

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  • A new criterion for the evaluation of image restoration quality

    Publication Year: 1992, Page(s):573 - 577 vol.2
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    The quality of an image depends on the purpose for which the image is intended. The acceptable types and degrees of degradation may be quite different. Both objective quality criteria and subjective evaluation criteria are examined, and a fuzzy criterion is proposed which provides a visually and quantitatively superior performance to the present criteria in image restoration View full abstract»

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  • Extraction of scenes containing a specific person from image sequences of a real-world scene

    Publication Year: 1992, Page(s):568 - 572 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    A method of extracting the head area from image sequences of a real-world scene for the purpose of facial discrimination processing is proposed. The method is based on tracking of the head area by characteristic point matching and edge matching. Experiments show that the method can extract the head area from scenes of a person walking freely against a general background in variable lighting, a per... View full abstract»

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  • VSAT-based satellite wide area networks

    Publication Year: 1992, Page(s):36 - 40 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (172 KB)

    The performance of very small aperture terminal (VSAT)-based satellite wide area networks is evaluated. VSATs are used as gateways to interconnect local area networks through satellites to form a wide area network. The delay of the network, which is the time needed to send a packet from a station in the source LAN to a station in the destination LAN, is analyzed. Several access protocols are consi... View full abstract»

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  • Symbolic and numerical investigation of manipulator performance limiting factors

    Publication Year: 1992, Page(s):563 - 567 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    The application of computer algebra and numerical simulation to investigate the dynamic performance limiting factors of a Puma 560 manipulator is discussed. Using simple computer algebra programs, it is possible to gain insight into the configuration-dependent dynamic terms and their effect on independent joint axis control strategies. The manipulator's base parameter set can be determined, and a ... View full abstract»

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  • Image interpolation based on image statistics: a case study

    Publication Year: 1992, Page(s):913 - 917 vol.2
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    Two novel approaches to image interpolation aimed at video service interworking, layered image coding, and image zooming are discussed. Compared to conventional interpolation filters used for image interpolation, the schemes proposed take advantage of prior knowledge of image statistics to enhance their performance. Both methods, inverse Wiener filtering (IWF) and vector interpolation (VI), use im... View full abstract»

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  • A 600 MHz 100 K ECL output buffer fabricated in 0.9 μm CMOS

    Publication Year: 1992, Page(s):774 - 778 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    A 600 MHz 100 kbit emitter-coupled logic (ECL) output buffer fabricated in 0.9 μm CMOS is presented. A new circuit technique is used which dynamically adjusts both the low and high DC drive levels of the output transistor circuit. The high AC performance of the buffer is achieved by segregating the high-speed data flow from the low-speed transistor sizing control bits. This segregation occurs a... View full abstract»

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  • An implementation of the entity-relationship model in type theory

    Publication Year: 1992, Page(s):322 - 326 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    The entity-relationship (ER) model has evolved from a database design tool to full-fledged database model. Existing prototypes of ER-based database systems use either relations or other record structures in the internal schema. Purely record based mappings are not adequate for supporting the rich semantics of the ER model in a natural way. The use of a rich and extensible type of system for the in... View full abstract»

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  • Computer-based feedforward and constant volume flow AGC systems used on strip cold rolling mill

    Publication Year: 1992, Page(s):41 - 45 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    The author reports on the use of automatic gauge control (AGC) systems based on the constant volume flow (CVF) equation for use in a strip cold rolling mill. In the particular system described, a feedforward control system measures entry strip deviations every 50 mm, and sends a correction signal to the hydraulic screwdown as the deviation enters the roll gap, keeping the outgoing gauge constant. ... View full abstract»

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  • The intelligent test techniques of the electric machines

    Publication Year: 1992, Page(s):559 - 562 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB)

    The electric machines measuring instrument is a specially designed system for intelligent testing of electric machines. It is fully automated. This system raises test efficiency and reduces labor hardship. The printed report of the performance of an electric machine using this intelligent test system is provided. The intelligent multifunction electric meter, the motor performance intelligent teste... View full abstract»

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  • A hardware prototyping board for complex digital design

    Publication Year: 1992, Page(s):191 - 195 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (148 KB)

    Logic simulation is not a satisfactory tool to verify a digital design as it offers no interaction with the complete system. A hardware prototyping board which can be programmed in minutes and can be plugged into a system immediately is described. The board contains four field-programmable gate arrays (FPGAs) equivalent to 16000 gates. Implementation is fully automated through a specially designed... View full abstract»

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  • Interworking video services with layered coding

    Publication Year: 1992, Page(s):918 - 922 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    Interworking between different video services is a critical factor in the success of a video communication system. A layered coding scheme which is well suited for use in a multimedia environment is described. The concept of layered coding, the coding algorithm and its coding efficiency are discussed. The idea of flexible layering is introduced, which, when combined with flexible picture formats, ... View full abstract»

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  • 200-1200 MHz CMOS techniques

    Publication Year: 1992, Page(s):779 - 783 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    Circuit and design techniques for high speed logic using standard CMOS processing have been developed. Several experimental chips performing real functions at speeds up to 1 GHz are demonstrated. Beyond normal speed improvement methods, two new methods are used. These are (1) a new clocking technique, the true single phase clock, and (2) transistor sizing using a new optimizer tool, SLOP (Switch L... View full abstract»

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  • A tactile sensor skin for measuring surface contours

    Publication Year: 1992, Page(s):262 - 266 vol.1
    Cited by:  Papers (2)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    The design and construction of a compliant tactile sensory skin intended for use in robotics applications are described. Sensor compliance increases the information gathering capabilities of the sensor, accommodates a degree of inaccuracy in robot positioning, aids stable grasping and resists damage. The sensor consists of a quantity of fluid contained behind a neoprene rubber skin. The electrical... View full abstract»

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  • Recursive descent techniques for ASN.1 decoding and encoding

    Publication Year: 1992, Page(s):327 - 331 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    The design of Abstract Syntax Notation One (ASN.1) coders and compilers using recursive descent techniques from its theoretical basis in compiler theory to software engineering considerations is examined. LL(1) compiler theory is used to develop parser tables and state transition diagrams for recursive descent decoders. A generic decoder is developed which includes specific ANS.1 specification inf... View full abstract»

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  • Pole assignment for uncertain dynamic systems

    Publication Year: 1992, Page(s):1023 - 1027 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB)

    Robust pole-placement for linear time invariant systems with structural uncertainty is discussed. It is shown that, upon the satisfaction of certain conditions, a linear time-invariant controller can always be found such that all of the closed-loop poles of the structurally uncertain system are placed in a prespecified region in the complex plane. A numerical example is given to illustrate the met... View full abstract»

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  • On the predictor for the waveform coding of speech signals by using the dual first order difference values

    Publication Year: 1992, Page(s):46 - 50 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB)

    It is argued that in the autocorrelation of speech samples, the autocorrelation of the adjacent past and the next sample is larger than the autocorrelation of several-order time-delayed samples. Thus, it is more effective to use the adjacent past and the next sample for prediction of the present sample, rather than use only the several-order time-delayed past. A new predictor that predicts the pre... View full abstract»

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  • Electrorheological fluids in the design of clutch systems for robotic applications

    Publication Year: 1992, Page(s):554 - 558 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    The introduction of electrorheological (ER) fluids has created a direct interface between mechanical and electronic devices. The use of such fluids in the design of torque-transmitting clutch systems which will have many applications in complex electromechanical systems such as robotic devices is investigated. Two examples are given which demonstrate the effective use of ER fluids in achieving var... View full abstract»

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  • SIMPAC: a simulator for parallel architectures and computing

    Publication Year: 1992, Page(s):196 - 200 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    An event-driven simulator for performance evaluation and modeling of parallel processing systems and parallel algorithms is presented. The system topology and architectural details are input to the simulator by means of a menu-driven graphics interface. The application program to be simulated is written in the metalanguage provided and mapped onto the system. The simulator produces performance met... View full abstract»

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  • Distributive video services support for the broadband ISDN

    Publication Year: 1992, Page(s):923 - 927 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    Distributive video services (DVSs) are potential new service types available on the broadband ISDN (B-ISDN). DVS concepts are introduced, together with the network and signaling requirements for their support. A network architecture and signaling realization option is proposed to provide DVS, including estimated performance parameters. Performance parameters studied include the total call delay ti... View full abstract»

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  • Impact of architecture choices on DSP circuits

    Publication Year: 1992, Page(s):784 - 788 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    Selection of proper architecture and implementation styles can strongly influence the performance of dedicated VLSI DSP circuits. The impact of architecture choices is illustrated by considering a number of representative signal processing examples and a few general architecture transformation techniques. It is shown that algorithm transformation techniques such as look-ahead computation can creat... View full abstract»

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  • Improved nested-threshold-cell-discard buffer management mechanisms

    Publication Year: 1992, Page(s):820 - 824 vol.2
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    Nested threshold cell discarding (NTCD) is a simple asynchronous transfer mode (ATM) network congestion control mechanism, well suited for high-speed applications. Its drawback is that it can unnecessarily discard some cells. The authors propose two modifications of NTCD, called nested threshold cell discarding with suspended execution (NTCD/SE) and dual queue nested threshold cell discarding (DQ-... View full abstract»

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  • WWFS: a framework for distributing information in the Internet environment

    Publication Year: 1992, Page(s):227 - 231 vol.1
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    A new framework for distributing information in the large scale, heterogeneous distributed computing environment is presented. It is argued that traditional methods for distributing information have several shortcomings, and that existing distributed file systems do not provide a suitable access model, heterogeneity, or scalability for this application area. A framework is presented to accomplish ... View full abstract»

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  • Upper limit estimation on the conversion gain of a mixer

    Publication Year: 1992, Page(s):685 - 689 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB)

    A simple method for estimating the theoretical limit on conversion gain of an active device operating as a mixer is presented. The analysis is based on two sets of small-signal S-parameters measured at different bias conditions. This analysis applies to both FETs and bipolar junction transistors (BJTs) in emitter(source)-injected or base(gate)-injected configuration. This information is particular... View full abstract»

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