Wire Transmission System for Television

Gannett, D. K.; Green, E. I.

doi:10.1109/t-aiee.1927.5061435

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The Beginnings: Analog and Mechanical Systems1

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1930

2023

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Cited by 8 publications

(1 citation statement)

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“…A diagram of the telephone circuit transmission system is shown in Figure 9 [8]. One line was used to send the video (with a backup line), one line for synchronism signals, one line to send the audio, and another line to receive the audio from the remote station.…”

Section: The Beginnings: Analog and Mechanical Systemsmentioning

confidence: 99%

Video Conferencing Technologies: Past, Present and Future

Joskowicz

2023

Preprint

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<p>This paper describes the historical trajectory of video conferencing systems, spanning from their earlier mechanical and analog origins in the 1920s to the sophisticated IP-based services delivered from the cloud in the 2020s. Each technological age is examined, highlighting the technical and functional aspects that characterized its evolution. Commercial landmarks of each age are presented providing a comprehensive overview of the most prominent offerings at pivotal moments in the timeline. By examining the past and speculating on the future, this paper aims to provide a holistic understanding of the development, current state, and forthcoming trends in video conferencing technology.</p>

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Section: The Beginnings: Analog and Mechanical Systemsmentioning

confidence: 99%

Video Conferencing Technologies: Past, Present and Future

Joskowicz

2023

Preprint

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Coaxial-Cable Networks

Cowan

1947

Proc. IRE

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The Transmission Characteristics of Open-Wire Telephone Lines

Green

1930

Trans. Am. Inst. Electr. Eng.

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Synopsis.-Values of the prsmary transmission constants interest in telephone work, namely, the attenuation, the characteristic R, L, G, and C for open-wire telephone lines are presented, and impedance, the phase constant, and the velocity of propagation. the factors which affect these constants in practise are discussed. Data regarding these characteristics are given for the frequency Consideration is then given to the constants which are of principal range from 0 to 50,000 cycles.

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Wire Transmission System for Television

Cited by 8 publications

References 3 publications

Video Conferencing Technologies: Past, Present and Future

Video Conferencing Technologies: Past, Present and Future

Coaxial-Cable Networks

The Transmission Characteristics of Open-Wire Telephone Lines

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