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IEEE Spectrum

Issue 7 • Date July 1969

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Displaying Results 1 - 25 of 42
  • [Front cover]

    Publication Year: 1969, Page(s): c1
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  • [Advertisement]

    Publication Year: 1969, Page(s): nil1
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  • IEEE Spectrum reader service card

    Publication Year: 1969, Page(s):1a - 1b
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  • [Advertisement]

    Publication Year: 1969, Page(s): 1
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  • Table of contents

    Publication Year: 1969, Page(s):2 - 3
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  • The Institute of Electrical and Electronics Engineers, Inc.

    Publication Year: 1969, Page(s): 4
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  • [Breaker page]

    Publication Year: 1969, Page(s): 4
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  • [Advertisement]

    Publication Year: 1969, Page(s):5 - 7
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  • Forum

    Publication Year: 1969, Page(s): 8
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  • [Advertisement]

    Publication Year: 1969, Page(s): 9
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  • Focal points

    Publication Year: 1969, Page(s):10 - 20
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  • [Advertisement]

    Publication Year: 1969, Page(s):11 - 22
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  • Transients and trends

    Publication Year: 1969, Page(s): 12
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  • Calendar

    Publication Year: 1969, Page(s):23 - 26
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  • [Advertisement]

    Publication Year: 1969, Page(s):25 - 28
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  • Spectral lines

    Publication Year: 1969, Page(s): 29
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  • Electronically expanding the citizen's world

    Publication Year: 1969, Page(s):30 - 40
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5954 KB)

    Is electronics extending itself to increase citizen opportunities for education, entertainment, and a better life? During World War II, electronics expanded to meet U.S. defense needs. Korea accelerated the advance of the technology even more. In all the unsettled years since, electronics technology has been facing new challenges. The Highlight Session at this year's IEEE International Convention ... View full abstract»

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  • A guided tour of the fast Fourier transform

    Publication Year: 1969, Page(s):41 - 52
    Cited by:  Papers (303)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3721 KB)

    For some time the Fourier transform has served as a bridge between the time domain and the frequency domain. It is now possible to go back and forth between waveform and spectrum with enough speed and economy to create a whole new range of applications for this classic mathematical device. This article is intended as a primer on the fast Fourier transform, which has revolutionized the digital proc... View full abstract»

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  • The Tiros decade

    Publication Year: 1969, Page(s):53 - 59
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7230 KB)

    The space age¿started by the launch of Sputnik I¿ is now ten years old. Men have orbited the earth and moon, and spacecraft have landed on the moon and traveled to distant planets. Communications satellites make possible live television among continents and, with the aid of meteorological satellites, giant strides are being made in our understanding of weather. RCA has played a key role in many ... View full abstract»

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  • The electronic highway

    Publication Year: 1969, Page(s):60 - 66
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5463 KB)

    Although high-speed, electrically powered surface and subsurface transportation will help to alleviate future traffic congestion in some localities, a majority of the public will probably continue to prefer the mobility, privacy, and freedom afforded by the automobile. Therefore, some form of automation for individual vehicles appears to be desirable¿in fact, necessary¿ if complete highway chaos... View full abstract»

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  • [Advertisement]

    Publication Year: 1969, Page(s):67 - 70
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  • Air pollution and electric power

    Publication Year: 1969, Page(s):71 - 76
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2256 KB)

    No one is in favor of air pollution. However, it is not possible today to eliminate it; the best we can do is to lessen it. We must balance what we would like against what it will cost. To the economist this suggests the cost-benefit approach by which the costs of a proposed decision are added up, a value is computed for the benefits, and if the latter exceeds the former there is economic justific... View full abstract»

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  • Feedback controls on urban air pollution

    Publication Year: 1969, Page(s):77 - 81
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3548 KB)

    A conceptual frame of reference for viewing the various functions of an air pollution control agency in a metropolitan area is the conventional feedback-control diagram. A series of such diagrams is presented and discussed, to indicate a possible sequence of developmental stages through which an integrated system may evolve. View full abstract»

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  • How to prototype hybrid-circuit patterns and screens at budget prices

    Publication Year: 1969, Page(s):82 - 88
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (8371 KB)

    Printed circuit taping methods are used to make thick-film master patterns. Usually, the patterns are laid out at ten times normal size and photographically reduced to actual circuit size. The screen patterns are then made using commercially available indirect emulsion material. A home movie light and a photographic print frame process the emulsion instead of a carbon arc and a vacuum frame. These... View full abstract»

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  • Improvements in electronics for nature photography

    Publication Year: 1969, Page(s):89 - 94
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4263 KB)

    Nature photography was almost the first application of the electronic flash system of lighting when it became commonly available.1 Although these first units used paper capacitors charged to high voltages and discharging at microsecond rates, later ``strobes'' employed lower-voltage capacitors and operated at longer flash durations. Hence, today's conventional strobe is not suitable for the rapidl... View full abstract»

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