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Proceedings of the IRE

Issue 8 • Aug. 1940

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Displaying Results 1 - 16 of 16
  • [Front cover]

    Publication Year: 1940, Page(s): c1
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  • Rochester Fall Meeting

    Publication Year: 1940, Page(s): c2
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  • Table of contents

    Publication Year: 1940, Page(s): nil1
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  • Information about the Society

    Publication Year: 1940, Page(s): nil2
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  • Quality in Television Pictures

    Publication Year: 1940, Page(s):343 - 350
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5824 KB)

    Present television standards specify certain factors which determine the appearance of a television picture only to a limited extent. Other factors, however, such as contrast, gradation, brilliance, and the shape of the scanning spot, are fully as important. A photographic method for producing artificial television pictures which permits varying several of these factors has been developed. Picture... View full abstract»

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  • Portable Equipment for Observing Transient Response of Television Apparatus

    Publication Year: 1940, Page(s):351 - 360
    Cited by:  Papers (10)
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    An apparatus which supplies a perfect transient, either directly or as the modulation of an ultra-high-frequency carrier, to a television amplifier or receiver and records its transient response on the screen of a synchronized oscilloscope is described. Performance requirements are discussed and some design details described, among these a carbon-disk attenuator suitable for ultra-high frequencies... View full abstract»

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  • Ultra-Short-Wave Transmission over a 39-Mile "Optical" Path

    Publication Year: 1940, Page(s):360 - 369
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3976 KB)

    Continuous records of ultra-short-wave transmissionon wavelengths of 2 and 4 meters, over a good "optical" path, have shown variations in the received signal strength. These variations can be explained as being due to wave interference; an interference which varies with the changes in the composition of the troposphere. Some of the variations are due to changes in the dielectric-constant gradient ... View full abstract»

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  • Some Factors Affecting the Choice of Lenses for Television Cameras

    Publication Year: 1940, Page(s):369 - 374
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1240 KB)

    The design of a television camera for a particular use involves the selection of a lens which, under the poorest conditions of illumination which are expected, will form a sufficiently bright image to meet the requirements of the pickup tube used. When the size and sensitivity characteristics of the pickup tube and video-frequency amplifier, the required signal-to-noise ratio, and the angle of vie... View full abstract»

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  • A Frequency-Modulation Monitoring System

    Publication Year: 1940, Page(s):374 - 378
    Cited by:  Papers (2)
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    In operation of a frequency-modulated station it is necessary to monitor the frequency deviation accurately so that the signal remains within the allocated band. This is important from the standpoint of adjacent-channel interference and the distortion produced in a receiver when the frequency devsation exceeds the limits of the detector. This paper presents an analytical discussion and computed ch... View full abstract»

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  • The Ionosphere and Radio Transmission, July, 1940, with Predictions for October, 1940

    Publication Year: 1940, Page(s):378 - 379
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  • Institute news and radio notes

    Publication Year: 1940, Page(s):380 - 384
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  • Correspondence

    Publication Year: 1940, Page(s):385 - 386
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  • Books

    Publication Year: 1940, Page(s):386 - 387
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  • Contributors

    Publication Year: 1940, Page(s):387 - 388
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  • Positions open

    Publication Year: 1940, Page(s): vii
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  • Index [of advertisers]

    Publication Year: 1940, Page(s): viii
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Aims & Scope

This Periodical ceased production in 1962. The current retitled publication is Proceedings of the IEEE.

Full Aims & Scope