Logic Control for Parallel Video Processing in Program Switchers

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 81, No. 2, pp. 100–104
Abstract: Studio program switchers are used to Select the proper picture(s) at the operator's discretion, either individually or in combination. Normally this is done by routing the video signals through different video devices, such as mixing amplifiers, special effects, etc. This delays the video signals, so the switchers must utilize secondary switching to put the processing devices in series or to substitute delay lines to maintain constant propagation delay through the system. To minimize the delay and to improve the quality of the picture, a new concept of parallel video processing has been developed. Time sharing and amplitude sharing are used to achieve MIX, WIPE, KEY, etc., leading to very good technical performance characteristics.
Publication Date: 1972-02-01
DOI: 10.5594/J05653
ISSN: Print: 0361-4573
Link: https://doi.org/10.5594/J05653
Author(s): N. SrinivasanA/V Design Engineering, General Electric Co., Communication Systems Div., Room 301, Bldg. 7, Electronics Park, Syracuse, NY 13201.
Copyright: © 1972 Society of Motion Picture and Television Engineers, Inc.

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N. Srinivasan; Logic Control for Parallel Video Processing in Program Switchers, Journal of the SMPTE ( Volume: 81, Issue: 2, February 1972); SMPTE, 1972. Available at https://doi.org/10.5594/J05653

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N. Srinivasan; Logic Control for Parallel Video Processing in Program Switchers, Journal of the SMPTE ( Volume: 81, Issue: 2, February 1972); SMPTE, 1972. Available at https://doi.org/10.5594/J05653

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N. Srinivasan; Logic Control for Parallel Video Processing in Program Switchers, Journal of the SMPTE ( Volume: 81, Issue: 2, February 1972); SMPTE, 1972. Available at https://doi.org/10.5594/J05653

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<span class="citation">N. Srinivasan; <cite>Logic Control for Parallel Video Processing in Program Switchers</cite>, Journal of the SMPTE ( Volume: 81, Issue: 2, February 1972); SMPTE, 1972. Available at <a href="https://doi.org/10.5594/J05653" target="_blank" rel="noopener">https://doi.org/10.5594/J05653</a></span>

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N. Srinivasan; Logic Control for Parallel Video Processing in Program Switchers, Journal of the SMPTE ( Volume: 81, Issue: 2, February 1972); SMPTE, 1972
doi: 10.5594/J05653
url: https://doi.org/10.5594/J05653

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N. Srinivasan; <cite id="bib-10-5594-j05653">Logic Control for Parallel Video Processing in Program Switchers</cite>, Journal of the SMPTE ( Volume: 81, Issue: 2, February 1972); SMPTE, 1972
<span class="doi">10.5594/J05653</span>
</li>