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IEEE Spectrum

Issue 3 • Date March 1969

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Displaying Results 1 - 25 of 48
  • [Front cover]

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

    Publication Year: 1969, Page(s):nil1 - 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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  • Infrared Parametric Upconversion

    Publication Year: 1969, Page(s): 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (812 KB)

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  • [Advertisement]

    Publication Year: 1969, Page(s):6 - 7
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  • Forum

    Publication Year: 1969, Page(s):8 - 9
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  • [Advertisement]

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

    Publication Year: 1969, Page(s):10 - 13
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  • [Advertisement]

    Publication Year: 1969, Page(s):11 - 14
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  • Transients and trends

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

    Publication Year: 1969, Page(s):15 - 16
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  • Technical Program

    Publication Year: 1969, Page(s):17 - 48
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  • [Advertisement]

    Publication Year: 1969, Page(s):21 - 50
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  • Information about the Society

    Publication Year: 1969, Page(s):33 - 34
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  • A New Use for the Sun

    Publication Year: 1969, Page(s): 41
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  • Spectral lines

    Publication Year: 1969, Page(s): 51
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  • Multielement self-scanned mosaic sensors

    Publication Year: 1969, Page(s):52 - 65
    Cited by:  Papers (35)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (12222 KB)

    Self-scanned image sensors are making possible new types of television cameras and imaging devices based entirely upon solid-state components. Research on integrated image sensors has followed two experimental approaches: monolithic silicon and thin-film photoconductors. This article reviews the operation of the most common types of self-scanned sensors, indicating their relative advantages and di... View full abstract»

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  • Images from computers

    Publication Year: 1969, Page(s):66 - 78
    Cited by:  Papers (22)  |  Patents (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (16382 KB)

    Modern digital computers, in conjunction with microfilm plotters, are capable of generating a wide variety of images. Beyond the mere plotting of curves, graphs, and labels, special programming techniques can produce halftone renditions of pictorial material with wide applications in optical signal processing and data portrayal. Other possibilities include the composition of images from alphanumer... View full abstract»

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  • A sinusoidal voltage-controlled oscillator for integrated circuits

    Publication Year: 1969, Page(s):79 - 82
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1330 KB)

    This article describes an inductorless near-harmonic voltage-controlled oscillator circuit that utilizes a compensated Wien-bridge topology with a voltage-controlled Miller integrator as the tuning element. Suitable for monolithic integrated realization, the VCO offers a two-to-one control range for frequencies up to 10 MHz, with less than a 1-dB amplitude variation and less than a ten percent tot... View full abstract»

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  • The economical fuel cell

    Publication Year: 1969, Page(s):83 - 90
    Cited by:  Papers (1)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6706 KB)

    Most of today's development work in fuel cells is geared to the specific adaptation of these energy sources to user requirements. For powering lightweight portable equipment, the fuel cell├é┬┐battery hybrid system has been found to be extremely useful and versatile. A minimum number of fuel cell and battery components can service a wide range of equipment at low development costs. View full abstract»

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  • [Advertisement]

    Publication Year: 1969, Page(s):91 - 94
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  • Power requirements for deep-space telecommunication links

    Publication Year: 1969, Page(s):95 - 99
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4715 KB)

    The signal-to-noise ratio in a given equivalent bandwidth must be maintained above a minimum value during a deep-space mission in order to provide predictable performance, and in order to maintain effective telemetry communications with spacecraft at interplanetary distances it is necessary for earth stations to use maximum antenna gain. One solution is to extend telecommand range by reducing syst... View full abstract»

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  • The future role of breeder reactors in utility planning

    Publication Year: 1969, Page(s):100 - 107
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5880 KB)

    Numerous considerations, chiefly related to cost, contribute to the growth pattern of electric generation. Although water reactors will undoubtedly dominate U.S. nuclear expansion into the 1980s, the high-gain fast breeder holds the greatest economic advantage over the long term. The factors leading to this conclusion are presented and analyzed here, and some predictions are made for the 20-year p... View full abstract»

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IEEE Spectrum Magazine, the flagship publication of the IEEE, explores the development, applications and implications of new technologies.

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