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Southeastcon '96. Bringing Together Education, Science and Technology., Proceedings of the IEEE

11-14 April 1996

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Displaying Results 1 - 25 of 147
  • A domain model of WWW browsers

    Publication Year: 1996, Page(s):436 - 439
    Cited by:  Papers (1)  |  Patents (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (363 KB)

    Domain analysis is the process of identifying and organizing knowledge about some class of problems to support the description and solution of those problems, WWW (World Wide Web) browsers was chosen as the domain to illustrate two different levels of domain analysis. In this work we illustrate a problem oriented domain analysis on the navigational features of WWW browsers and a solution oriented ... View full abstract»

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  • Author index

    Publication Year: 1996
    Request permission for commercial reuse | PDF file iconPDF (166 KB)
    Freely Available from IEEE
  • Advances in virtual design and visual center concepts

    Publication Year: 1996, Page(s):107 - 110
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    Innovations in interactive audio, video, and data transfer have given rise to a multitude of new applications such as screen sharing, multimedia, and distributed processing. At Florida International University Electrical and Computer Engineering Laboratories, work has been in progress to define and develop the virtual design center (VDC), and virtual visual center (VVC) concepts with the help of n... View full abstract»

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  • Spectral shaping for the hearing impaired

    Publication Year: 1996, Page(s):103 - 106
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    A method is presented for shaping the audio spectrum to improve intelligibility for the hearing impaired. Actual audiological data is used to design a finite impulse response digital filter using the frequency sampling method. Cubic spline interpolation is used to generate any number of frequency samples from the limited number available from the audiological data View full abstract»

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  • Classification of spatio-temporal EEG readiness potentials towards the development of a brain-computer interface

    Publication Year: 1996, Page(s):99 - 102
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    The existence of characteristic changes in the EEG of a subject preparing for the execution of a voluntary movement is reviewed. Some of those changes, i.e., the “readiness potentials” (RPs), are suggested as a possible link between the internal processes associated with different forms of motion preparation and a digital signal processing system designed to classify the different inte... View full abstract»

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  • Image registration using the length code algorithm

    Publication Year: 1996, Page(s):257 - 260
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    Traditional image registration algorithms are often computationally intensive and therefore costly and time consuming. For instance, methods based on the cross-correlation function or on the average magnitude difference function (AMDF) involve a considerable amount of computation time. The paper investigates a technique which is referred to as the “length code algorithm”. The length co... View full abstract»

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  • Stability analysis of impulsive stochastic differential systems in terms of two measures

    Publication Year: 1996, Page(s):132 - 135
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    Stability, involving two measures, of a class of impulsive stochastic systems is investigated. Sufficient conditions for stability are obtained using Lyapunov-like functions and differential inequalities View full abstract»

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  • DSP removal of respiratory trend in photoplethysmographic blood volume pulse measurements

    Publication Year: 1996, Page(s):96 - 98, 98a
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    Three different digital signal processing algorithms for removing the respiratory trend from photoplethysmographic blood volume pulse (BVP) signals are investigated. The goal of this processing is to avoid the distortion introduced by the low-frequency trend contaminating the BVP signals recorded for the purpose of exercise evaluation. The three approaches are compared in terms of the improvement ... View full abstract»

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  • A fault tolerant indexed 5B/6B code

    Publication Year: 1996, Page(s):281 - 283
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    The CRC and 5B/6B codes rely on re-transmission of corrupted frames rather than forward error correction. With CRC any three single-bit errors occurring randomly in the frame are detected. Also any burst of errors for which the distance between the first corrupted bit and the last corrupted bit is less than or equal to 32 bits is detected. The 5B/6B code on the other hand has the same three single... View full abstract»

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  • Use of the sigma probability in Tomita's filter

    Publication Year: 1996, Page(s):253 - 256
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    An image smoothing algorithm, the Sig-Tomita algorithm, based on the sigma probability used in the sigma filter and the directional method used in the Tomita's filter is proposed. The sigma probability used in sigma filter is integrated with Tomita's (1977) directional smoothing process. In this approach, the geometric shape of the subregion selected is varied instead of a square shape as used in ... View full abstract»

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  • SDRAM - high performance memory devices running CPU bus speeds

    Publication Year: 1996, Page(s):604 - 607
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    Synchronous DRAMs (SDRAMs)are DRAM type products that can offer an evolutionary change with performance advantages for memory systems previously unachievable with traditional DRAMs. These advantages are based on a synchronous I/O interface and improved internal architecture that enables faster data throughput rates. Performance estimations done to compare DRAMs with SDRAMs for various miss ratios ... View full abstract»

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  • Stochastic control problems with unbounded control set

    Publication Year: 1996, Page(s):128 - 131
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    Stochastic differential equations with adapted control are obtained as natural limits of birth and death processes, and an important class of such SDEs in which the control set is unbounded is studied. A change of time technique allows us to transform such control problems to ones with a bounded control set. The transformed problem has the same value function as the originally posed problem. A nic... View full abstract»

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  • Effects of dew on millimeter-wave propagation

    Publication Year: 1996, Page(s):684 - 687
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    As the need for spectrum space increases, a greater understanding of atmospheric effects on signals at higher frequencies will be required. A brief description of atmospheric attenuation at millimeter-wave frequencies is presented with a focus on attenuation caused by water, the largest contributor of millimeter-wave attenuation. Dew on an antenna is a significant contributing factor to this atten... View full abstract»

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  • A new Monte Carlo method for Neumann problems

    Publication Year: 1996, Page(s):92 - 95
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    The Monte Carlo methods (MCMs) have been applied with great success to the solution of the elliptic differential equation, but none of them in their present form can be used when a mixed boundary condition is involved. To overcome this limitation existing in classical MCMs, a new fixed random walk method, known as the triangular mesh random walk method, is presented for the elliptical problem with... View full abstract»

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  • Ultra low voltage complementary metal oxide semiconductor (ULV-CMOS) circuits: bulk CMOS operation below threshold (VTO)

    Publication Year: 1996, Page(s):670 - 673
    Cited by:  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    To achieve greater reduction in inverter operating voltage and power consumption, ULV-CMOS circuits operating with supply voltages of 900 mV and lower were implemented using bulk processed CMOS transistors. The low voltage operation was achieved by applying the input to both the gate and body of the CMOS transistors. The input voltage forward biases the body to source junction(s), which in turn lo... View full abstract»

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  • Data acquisition experiments

    Publication Year: 1996, Page(s):533 - 536
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    The University of Arkansas at Little Rock has developed a course and established a laboratory form a grant from the National Science Foundation to perform experiments and projects in the area of automated data acquisition and control. This course is intended to provide technical currency for its engineering technology students who most often go on to industrial positions that require a knowledge o... View full abstract»

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  • Ku-band solid state power amplifier for Geosat follow-on

    Publication Year: 1996, Page(s):277 - 280
    Cited by:  Papers (2)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    A compact 7 W (peak) Ku-band solid state power amplifier (SSPA) has been designed and developed for the Navy's Geosat follow-on (GFO) radar altimeter. This amplifier combines the output of two 5 W internally matched MESFETs with an integral waveguide combiner, and uses an external isofilter to protect the SSPA from load variations and to suppress 2nd and 3rd harmonics to -60 dBc. Drain voltage swi... View full abstract»

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  • Fractal-based modeling of 3D terrain surfaces

    Publication Year: 1996, Page(s):246 - 252
    Cited by:  Papers (3)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    Fractal-based methods have been developed and implemented for analyzing a 3D mesh of terrain sample points and using then to approximate the terrain surface at points between the known sample points. Fractal features such as fractal dimension and distribution function are extracted from a coarsely sampled 3D surface, and then interpolated in order to estimate the intervening surface. The sample me... View full abstract»

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  • Electrostatic deformable devices using surface micromachining

    Publication Year: 1996, Page(s):596 - 603
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (656 KB)

    Two types of electrostatic deformable devices were fabricated by using silicon surface micromachining techniques. Micro-bridge structures and deformable micro-mirror devices (DMDs) have been designed and tested. The microelectromechanical structures (MEMS) are based on the electrostatic attractive force between two polysilicon layers. Testing results in general showed agreement with the theoretica... View full abstract»

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  • Applications of a generalized Dirichlet principle to transistor modeling

    Publication Year: 1996, Page(s):425 - 427
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    We report the theory, implementation and results of using a Poisson solver to compensate the measured valuer of drain conductance and transconductance in a nonlinear MESFET so as to render them compatible with a large-signal model. The consequent restructuring of the I-V curves is exhibited View full abstract»

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  • An indexed access mechanism for wireless networks

    Publication Year: 1996, Page(s):480 - 483
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    The wireless communications industry has experienced some radical changes due to increased demand for wireless communications that can no longer be met with present technologies. One example of such networks is a cellular wireless network. This paper describes a new medium access mechanism-indexed RAMA (resource auction multiple access) or I-RAMA for wireless networks. This access mechanism is bas... View full abstract»

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  • Optimal starting-stopping problems for Markov-Feller processes

    Publication Year: 1996, Page(s):124 - 127
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    By means of nested inequalities in semigroup form we give a characterization of the value functions of the starting-stopping problem for general Markov-Feller processes. Next, we consider two versions of constrained problems on the final state or on the final time. The optimal stopping problems have been extensively studied for diffusion processes, or other Markov processes, or for more general st... View full abstract»

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  • Semantic database for geographic information systems

    Publication Year: 1996, Page(s):696 - 698
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    A practical geographic information system necessitates the manipulation of an extensive amount of spatially referenced data. From the retrieval process to the display function, the burden on both the hardware and software of the target system to process the data in a time restrictive manner is considerable and creates the impetus for the development of new techniques in data handling. The methods ... View full abstract»

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  • Attenuation of the electromagnetic waves due to dry snow

    Publication Year: 1996, Page(s):680 - 683
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    Based on the point matching technique, the attenuation of electromagnetic waves due to dry snow is computed. The analysis is restricted to the forward-scattering direction from oblate spheroidal dry snow. Numerical results are obtained for two orthogonal polarizations of the incident wave. The calculations are made for various microwave frequencies, between 6 and 75 GHz, and also for different pre... View full abstract»

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  • Enhanced quality modified multiband excitation model at 2400 bps

    Publication Year: 1996, Page(s):223 - 226
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    This paper introduces the modified multiband excitation model (MMBE) for speech coding. The MMBE is a modified version of the multiband excitation model which operates at lower bit rates and has improved speech quality. The MMBE is similar to the improved multiband excitation coder described in Hardwick and Lim (1991). The MMBE bit rate is reduced by employing more efficient coding techniques and ... View full abstract»

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