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IEE Proceedings E - Computers and Digital Techniques

Issue 1 • Date January 1982

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Displaying Results 1 - 8 of 8
  • Microprocessor control of TIG welding system

    Publication Year: 1982, Page(s):1 - 8
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1271 KB)

    At the start of the project, a hardwired controller existed for controlling the welding sequence required for pulsed TIG welding. Such a sequence controls the gas flow, arc current and torch movement. This controller has now been replaced by a microprocessor-based design. The system is described in this paper and it readily carries out the functions of the hardwired controller but, in addition, is... View full abstract»

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  • Optimum guard zone for self-supervised learning

    Publication Year: 1982
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (738 KB)

    A self-supervised learning algorithm using fuzzy set and the concept of guard zones around the class representative vectors is presented and demonstrated for vowel recognition. An optimum guard zone having the best match with the fully supervised performance is determined. Results are also compared with that of nonsupervised case for various orders of input patterns. View full abstract»

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  • Book review: Processing of Visible Language 2

    Publication Year: 1982
    IEEE is not the copyright holder of this material | PDF file iconPDF (167 KB)
    Freely Available from IEEE
  • Mapping of Reed-Muller coefficients and the minimisation of exclusive OR-switching functions

    Publication Year: 1982, Page(s):15 - 20
    Cited by:  Papers (17)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (755 KB)

    A new geometric format, the bj coefficient map, is here introduced, the entries in which are the {0, l} coefficient values of the Reed-Muller Exclusive-OR expansions by which any given combinatorial function may be expressed. Although similar in format to the classic Karnaugh map, the bj map entries do not represent the function output in the same manner as do the minterm entries plotted on a Karn... View full abstract»

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  • New approach to implementation of digital filters using several processors

    Publication Year: 1982, Page(s):21 - 27
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (834 KB)

    The problems of transferring variables between processors and the lack of parallelism in a 2nd-order digital filter section are discussed. An approach which overcomes these problems is presented and an implementation employing the approach is described. View full abstract»

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  • Overcoming memory contention in a digital scan converter

    Publication Year: 1982, Page(s):28 - 32
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (659 KB)

    The problem of memory contention in digital scan converters (DSC) is discussed. The role of the microprocessor in DSC design is examined, and the importance of uninterrupted display in the development and use of image-processing algorithms is stressed. The drawbacks inherent in interrupt and in direct memory access are pointed out and an elegant scheme using the CPU `READY¿¿ feature is suggested a... View full abstract»

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  • Fir digital filters for signals in delta-modulated form

    Publication Year: 1982, Page(s):33 - 36
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (416 KB)

    Several FIR digital filter implementations are developed for the case where the input signal, the specified impulse response, or both, are in delta-modulated form. They are simple and do not require multiplication. View full abstract»

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  • Book review: Digital System Design with LSI Bit-Slice Logic

    Publication Year: 1982
    IEEE is not the copyright holder of this material | PDF file iconPDF (176 KB)
    Freely Available from IEEE