Volume 15 Issue 7 • July 1978

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  • Contents

    Publication Year: 1978, Page(s): 1
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  • [Advertisement]

    Publication Year: 1978, Page(s):2 - 7
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  • Forum

    Publication Year: 1978, Page(s):8 - 15
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  • Calendar

    Publication Year: 1978, Page(s): 16
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  • News from Washington

    Publication Year: 1978, Page(s): 17
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  • Energy report

    Publication Year: 1978, Page(s): 18
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  • The engineer at large

    Publication Year: 1978, Page(s):19 - 21
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  • Scanning the Institute

    Publication Year: 1978, Page(s): 22
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  • Coming in Spectrum

    Publication Year: 1978, Page(s): 22
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  • Best bits: Applications of microprocessors: Distributed network fits in typewriter

    Publication Year: 1978, Page(s):23 - 24
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    Using three microprocessors rather than one costs less and makes for easier software development, say the designers of the new QYX word-processing typewriter. Their cost argument is based on the assumption that even if LSI die prices go to zero, the cost of chip packaging and board mounting comes out to a fixed price per pin. That being so, they feel they can get more intelligence with three 40-pi... View full abstract»

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  • Spectral lines: Electronics and power: A remarriage

    Publication Year: 1978, Page(s): 25
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (474 KB)

    If, a few decades ago, the electronics engineer and the power engineer were little interested in one another's problems, and saw little need to be, such is hardly the case today. We pointed out in this column in February that all of IEEE's members have a vested interest in power just by virtue of being consumers. Beyond that, we noted, those areas of electrotechnology representing an overlap betwe... View full abstract»

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  • Displays: Flat-panel displays: A critique: They face six hurdles in displacing the CRT: Matrix addressing, duty cycle, luminous efficiency, uniformity/gray scale, color, and cost

    Publication Year: 1978, Page(s):26 - 32
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (3135 KB)

    Discusses drawbacks of flat panel displays which have to be overcome before they can displace the CRTs. The following parameters are considered: matrix addressing, dusty cycle, luminous efficiency, uniformity, grey scale, colour and cost. As the leading display contenders-plasma discharge panels, cathodoluminescent devices, electroluminescent devices, liquid crystal displays electrophoretics, and ... View full abstract»

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  • Communications: Single-sideband transmission for land mobile radio: From seven to ten times as many channels could be made available in existing VHF and UHF bands

    Publication Year: 1978, Page(s):33 - 37
    Cited by:  Papers (17)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (2271 KB)

    It is suggested that from seven to ten times as many channels could be made available in existing VHF and UHF bands. FM, AM, and SSB modulation techniques combined with syllabic amplitude and frequency compandors are compared. In the 15- to 30-dB signal-to-noise ratios-the amplitude-compandored SSB system and the amplitude- and frequency-compandored SSB system provide the same or better quality re... View full abstract»

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  • Computers: Microcomputers invade the linear world: Analog interfacing techniques are in demand as microcomputers are exploited in inexpensive equipment for linear applications

    Publication Year: 1978, Page(s):38 - 41
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    Analog interfacing techniques are dealt with which are in growing demand as microcomputers are exploited in inexpensive equipment for linear applications. View full abstract»

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  • Power systems `2000': hierarchical control strategies

    Publication Year: 1978, Page(s):42 - 47
    Cited by:  Papers (20)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (3302 KB)

    Discusses changes which are likely to occur in the power system control strategies during years 1978 to 2000. Hierarchical decomposition of the system into a multilevel strategy is illustrated. The development of the relationship between the utility and its customers is discussed assuming the wide use of home microcomputers. Controversial issues arising from the advanced computerisation are outlin... View full abstract»

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  • Energy: Industrial energy control: The computer takes charge: Limited intelligence will suffice for local control, but computers are needed for overall system control

    Publication Year: 1978, Page(s):48 - 53
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (3497 KB)

    Discusses benefits offered by computer-based energy management which include: on-line control, global optimisation, overall plant data monitoring and plant management. Energy flow in a pulp and paper plant is illustrated as an example. Three levels of increasingly complex control are outlined: the control of individual energy sources or sinks; group control of similar units; and an overall supervi... View full abstract»

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  • New and recent IEEE publications

    Publication Year: 1978, Page(s):54 - 55
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  • IEEE tables of contents

    Publication Year: 1978, Page(s):56 - 59
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  • New product applications: 12-bit D/A and A/D converters feature universal microprocessor interfacing

    Publication Year: 1978, Page(s):60 - 62d
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (3736 KB)

    This pair of 12-bit, dual-in-line packaged D/A and A/D converters is available with all the necessary circuitry to interface to microprocessor systems. Although other 12-bit and lower-resolution D/A and A/D converters are available with microprocessor interface circuitry, this pair - the MN3500 D/A and MN5500 A/D - are the first 12-bit units with total interfacing capabilities, available in a dual... View full abstract»

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  • News from industry

    Publication Year: 1978, Page(s): 63
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  • News from the regions

    Publication Year: 1978, Page(s):64 - 65
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  • Spectrum's hardware review

    Publication Year: 1978, Page(s): 66
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  • Applications literature: Using a logic analyzer to debug microcircuit systems

    Publication Year: 1978, Page(s):67 - 70
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (2718 KB)

    This four-page applications note discusses two common problems in debugging a microprocessor-based process control system: an interface fault and an intermittent system input error. In both cases, a logic analyzer is used to find and diagnose the difficulty, considerably reducing the time spent in prototype debugging. View full abstract»

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  • Meetings

    Publication Year: 1978, Page(s):71 - 73
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  • Book reviews

    Publication Year: 1978, Page(s):74 - 79
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