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Cable Television, IEEE Transactions on

Issue 3 • Date July 1977

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Displaying Results 1 - 14 of 14
  • IEEE Transactions on Cable Television - Table of contents

    Page(s): c1 - 152b
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  • IEEE Broadcast, Cable and Consumer Electronics Society

    Page(s): c2 - 152a
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  • Editor's Note

    Page(s): 105
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  • News About BCCE Society Committees

    Page(s): 106
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  • There are Advantages for you in Joining the IEEE.

    Page(s): 107
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  • Blank Page

    Page(s): 108
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  • Setting and Maintaining Modulation Levels

    Page(s): 116 - 119
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    We deal here with two related problems faced by the user of television modulators: the problemn of initially setting modulation and the problem of maintaining it over a long period of time. Actually, we have four problems here, because the same problems exist for both audio and video. Failure to maintain correct video modulation may result in loss of sync, a washed out-picture, and weak color in the case of undermodulation. Overmodulation can result in poor detector, amplifier, and kinescope linearity, causing problems with the intensity and tint of picture highlights, and can cause excessive sync buzz in the audio channel. Undermodulation in the audio channel results in weak audio and poor signal to noise ratio. Overmodulation of the audio can result in distortion. Any errors in setting modulation levels are particularly annoying when changing from one channel to another. Signal processors will generally not alter the modulation level of off-air stations, though frequency response errors will cause an apparent change in video modulation depth at higher video frequencies. View full abstract»

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  • Conceptual Design of a Switched Television-Distribution System Using Optical-Fiber Waveguides

    Page(s): 120 - 130
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    A conceptual design of a switched television-distribution system based on analogue intensty-modulated (IM) transmission through optical-fiber waveguides is discussed. Transmission of two TV channels and provision of telephone or data service over two optical-fiber waveguides to each subscriber by frequency-division multiplexing is considered first and then other design options such as spatial-division multiplexing, inclusion of copperwire pairsfor the supply of electrical power and telephone or data service is reviewed. Thepresent state ofdevelopment of system components is also discussed and areas requiring further development are pointed out. Theoretical Calculation of the possible transmission distances for analogue IM transmission of baseband and frequency-division multiplexed video signals is described. The results show that if-3 dBm (0.5 mW) of optical power modulated by a baseband video signal to a peak modulationfactor of 80% is launched into an optical-fiber waveguide, a distance of approximately 15 km can be spanned without a repeater. It is concluded that in view ofthe distances that can be covered by low-loss optical-fiber transmission systems, a centrally switched optical television distribution system may well be attractive for applications not only to urban areas, but also to rural areas. It is further suggested that an economic analysis is needed to ascertain the practicality of such a system. View full abstract»

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  • Generation of Inter-or Cross-Modulation Distortions in Nonlinear Devices

    Page(s): 131 - 137
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    If the amplifying characteristics G(v) in nonlinear amplifiers which are driven by a single carrier are known, it is shown that the output at an frequency ¿, operating with n-carriers can be calculated by the integration of G(v) x F(v)¿. Where F(v) n is a derived function independent of characteristics. View full abstract»

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  • From Alpha to Omega A Preview of an Advanced Canadian Cordless Converter Design

    Page(s): 138 - 145
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    A four year history of the Sales and Service of set converters has provided the technical profile for the development of a new cordless converter which amply reflects the current demands of the consumer market. View full abstract»

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  • IEEE Broadcast, Cable, and Consumer Electronics Society

    Page(s): 146 - 148
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  • The Institute of Electircal and Electronics Engineers, INC.

    Page(s): 149 - 151
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  • Call for Papers and Information for Authors

    Page(s): 152
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Aims & Scope

IEEE Transactions on Cable Television (published between 1972 and 1980) included within its scope microwave, satellite earth stations, data transmission, fibre optics, receiving antennas and propagation, closed circuit origination facilities, home terminals, games and the whole range of promising applications for broadband communications network.

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