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Northcon 95. I EEE Technical Applications Conference and Workshops Northcon95

Date 10-12 Oct. 1995

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Displaying Results 1 - 25 of 70
  • Combined wireless and optical LAN

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (501 KB)  

    The combined wireless and optical communications offers an economic and flexible solution for local area networks (LANs) mainly in office buildings. The performance of the system is enhanced by applying subcarriers which allow the transmission of the radio channels without changing their format. The reception is significantly improved by a direct optical-subcarrier mixing method. This method provi... View full abstract»

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  • A simple CMI encoder and a generalized approach to designing similar state machines

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (421 KB)  

    The coded mark inversion (CMI) line code is becoming popular for wideband fiber optic systems. The advantages of CMI include DC balance and guaranteed transition density, which simplifies the timing recovery. Previous CMI encoder implementations typically relied on a mixture of digital, analog, and delay line techniques. The encoders proposed in this paper are digital state machines that allow ele... View full abstract»

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  • A DSP-based research prototype reverse channel transmitter/receiver for ADSL

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (401 KB)  

    The asymmetric digital subscriber line (ADSL) is an emerging technology for the transport of asymmetric DS1-rate services over a single copper twisted-pair in the local loop plant. One of the key ingredients to the ADSL system is the upstream low bit-rate control channel. The architecture and laboratory implementation of the low bit-rate upstream control channel is described. The system was first ... View full abstract»

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  • The aid of virtual reality in the industry

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (195 KB)  

    The uses of virtual reality are endless, but its most common use is assisting design engineers for major industries. Many companies research virtual reality, but they do not publicize it due to competitive advantage. The paper considers how industries have been using virtual reality to improve design and prototyping costs, which reduces manufacturing costs. It discusses some examples View full abstract»

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  • Virtual environments for aerospace training

    Publication Year: 1995
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (378 KB)  

    Virtual environments (VEs) have the potential to significantly enhance the training of NASA astronauts and ground based personnel for a variety of activities. At the same time this technology offers significant cost savings and increased training throughput. Issues being explored include the use of VEs to replicate features of microgravity environments that are not available in ground based simula... View full abstract»

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  • In, but not of, the system: overview of embedded systems test methods

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (311 KB)  

    Embedded systems exist in the midst of larger, more complex, real-world systems. Rarely are they end products or applications. The distinction affects the timing, the methods, and the importance of software testing for embedded systems. This talk shows how industry is responding to needs for software quality in this important market View full abstract»

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  • Accelerating Ethernet-options and implications

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (843 KB)  

    Ethernet is the dominant business network currently deployed, with in excess of 60 million nodes installed. A significant reason for the acceptance of Ethernet has been its widespread support by multiple vendors in the market place and the standards arena. However, Ethernet has apparently entered a period of change, seemingly impacting its overall cost and interoperability compared to its' previou... View full abstract»

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  • Navigating large databases using a new high-level computer language

    Publication Year: 1995
    Cited by:  Patents (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (550 KB)  

    The University of Texas at El Paso (UTEP) is in the process of forming the Pan American Center for Earth and Environmental Studies (PACES). PACES will conduct basic and applied research that will contribute to NASA's Mission to Planet Earth. PACES will provide a repository of information which will enable researchers to develop an improved understanding of geological, ecological and environmental ... View full abstract»

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  • What comes after microprocessors?

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (487 KB)  

    “What comes after microprocessors?” is really the question of what does one build next on silicon after one meets the demand for microprocessors. Since 1965, silicon has been used to build computers, culminating in the microprocessor. However, the microprocessor seems to be maturity in architecture and penetration. What does one invent next to populate the acres of silicon produced eac... View full abstract»

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  • What will semiconductors be like a quarter of a century from now?

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (441 KB)  

    Development is going to occur to semiconductors in the next one, two, five, ten, twenty-five, fifty, and two-hundred-fifty years. That development, most likely, will not be merely a boring-humdrum linear extrapolation of present trends. However, predicting just what that development will turn out to be, when it happens, is far from easy. Here, the author presents four assertions which he believes ... View full abstract»

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  • The lone wolf-having it your way in the work place

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (318 KB)  

    The author briefly describes his experience of leaving a company and becoming self employed. The author discusses the advantages and disadvantages of being a `lone wolf' and the points to consider before deciding to become self employed including telecommunications facilities, family relationships, working from home, the amount of paperwork involved in running a small business, and the economics a... View full abstract»

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  • Semiconductor testing in the 21st century

    Publication Year: 1995
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (289 KB)  

    With clock rates at a GHz + in the 21st century, a new and innovative method of verification for silicon devices must arise. It will eliminate the need for the massive numbers of blocked drivers and coax. It will lend versatility to parallel device test while reducing the overall cost and improving the throughput for a better bottom line. The new system will be up-gradable in speed and density ver... View full abstract»

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  • Artificial neural networks to model and diagnose cardiovascular systems

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (474 KB)  

    A novel approach to modeling and diagnosing the cardiovascular system is introduced. A model exhibits a subset of the dynamics of the cardiovascular behavior of an individual by using a recurrent artificial neural network. Potentially, a model will be incorporated into a cardiovascular diagnostic system. This approach is unique in that each cardiovascular model is developed from physiological meas... View full abstract»

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  • Dynamic programming with neural networks

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (433 KB)  

    The primary objective of dynamic programming is to reduce the solution of a complex optimization problem to a sequence of simpler ones. This paper discusses the alternatives available for solving a class of dynamic programming problems using neural networks. The specific focus is upon graphical shortest path problems where the objective is to discover the least cost path in a weighted graph betwee... View full abstract»

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  • Neural nets for decoding error-correcting codes

    Publication Year: 1995
    Cited by:  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (463 KB)  

    Error-correcting codes are used in a variety of areas from computers to communications. Ideally, one simply looks at a received message which may contain errors, and decodes it into the error-free message. Unfortunately, this decoding process can be quite complicated and might not exploit the maximum error correction capabilities of the code. While for the simple Hamming code the decoding is direc... View full abstract»

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  • Neural network techniques for invariant recognition and motion tracking of 3-D objects

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (519 KB)  

    Invariant recognition and motion tracking of 3-D objects under partial object viewing are difficult tasks. In this paper, the authors introduce a new neural network solution that is robust to noise corruption and partial viewing of objects. This method directly utilities the acquired range data and requires no feature extraction. In the proposed approach, the object is first parametrically represe... View full abstract»

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  • Predicting atmospheric ozone using neural networks as compared to some statistical methods

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (304 KB)  

    Recent developments in the area of nonlinear nonparametric statistics show many similarities to artificial neural networks. Both fields share a common goal in data mining, in trying to extract information and patterns in data sets, and in fitting appropriate models to data for interpretation and prediction. In this paper, the authors present an empirical comparison of the predictive power on an at... View full abstract»

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  • Comparison of symbolic and connectionist approaches to local experts integration

    Publication Year: 1995
    Cited by:  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (550 KB)  

    Monostrategy classification systems are very limited in the type of knowledge they can use for decision making. On the other hand, potentially better results are achievable using multistrategy systems that integrate two or more types of knowledge representation and/or multiple inference underlying a decision process. In this paper a decision tree and a neural network technique for competitive inte... View full abstract»

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  • Technical trading rules as a prior knowledge to a neural networks prediction system for the S&P 500 index

    Publication Year: 1995
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (500 KB)  

    Financial markets data is very noisy and nonstationary which makes modeling through machine learning from historical information a challenging problem. Our experience indicates that in markets modeling through neural network learning, significant data preprocessing is needed. We have proposed a promising multi-component prediction system for the S&P 500 index which yields a higher return with ... View full abstract»

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  • Electronic noses and their applications

    Publication Year: 1995
    Cited by:  Papers (13)  |  Patents (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (490 KB)  

    Electronic/artificial noses are being developed as systems for the automated detection and classification of odors, vapors, and gases. An electronic nose is generally composed of a chemical sensing system (e.g., sensor array or spectrometer) and a pattern recognition system (e.g., artificial neural network). We are developing electronic noses for the automated identification of volatile chemicals ... View full abstract»

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  • Projection in conceptual graphs using neural networks

    Publication Year: 1995
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (504 KB)  

    Conceptual graphs are a symbolic representation of knowledge, using the notions of concepts and concept relations (of relations). Each concept in a conceptual graph represents a single idea: an object, attribute, action, etc. Conceptual graphs have proven useful in linguistic processing and as an organizing principle for databases and intelligent systems. One possible scenario of use is to constru... View full abstract»

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  • Introduction and overview of "Written-Pole" technology

    Publication Year: 1995
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (248 KB)  

    A new type of AC machine has been developed which can provide performance beyond the capability of conventionally designed machines. This new “Written-Pole” machine technology consists of a rotor design that has a layer of magnetic material that can be changed magnetically to any desired pole pattern while the machine is operating. In conventional machines the rotor poles are mechanica... View full abstract»

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  • EPRI's program with large horsepower single-phase written-pole motors

    Publication Year: 1995
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (248 KB)  

    EPRI is continuing the commercialization of many advanced technologies. One such effort is in the area of large horsepower single-phase written pole motor design and development. This project has a number of benefits, especially in the rural utility sector, where single-phase distribution systems are commonplace, and their conversion to three-phase would be cost prohibitive. Additionally, large ho... View full abstract»

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  • Improved power quality with "Written-Pole" motor-generators and motors

    Publication Year: 1995
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (423 KB)  

    Written-Pole motor-generators and motors improve power quality because the magnetic pattern of rotor field poles can be changed while the machines operate. Applied in a motor-generator set, pole writing allows the generator to produce high quality constant frequency output at variable speed. The motor efficiently operates its own high inertial energy rotor as a flywheel energy storage device. The ... View full abstract»

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  • Applications end markets for written pole single-phase motors to 100 horsepower

    Publication Year: 1995
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (519 KB)  

    The new written pole motor offers an opportunity to provide a range of practical low inrush single-phase synchronous motors up to 100 HP. Prototype motors up to 25 HP have been made and demonstrated confirming the unique low starting current and high efficiency. Three market segments: agriculture, irrigation and water and waste water were identified as promising for the new motors. Each segment wa... View full abstract»

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