New Ancillary Services Using a Television Channel

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: A data-broadcasting system implemented in France by the CCETT is discussed. Employing an ordinary television channel, the system provides at least three new ancillary services, and more are under development. The first service accomplishes the automatic recording of preselected programs for any user with a keypad, memory unit and VTR; the second provides scrambling and unscrambling of a television signal as for pay TV and theater projection; and the third uses the ANTIOPE teletext system to transmit “magazines” in page form to the home viewer. If the teletext system uses time-division multiplexing with an ordinary program, subtitling in any of several languages is possible along with transmission on request of special news-flash pages. Otherwise, when magazine pages only are transmitted on the channel, a page rate of about 20,000 per minute (24 lines of 40 characters each) is possible.
Publication Date: 1977-11-01
DOI: 10.5594/J06717
Link: https://doi.org/10.5594/J06717
Author(s): Bernard Marti

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Bernard Marti; New Ancillary Services Using a Television Channel, SMPTE Journal ( Volume: 86, Issue: 11, November 1977); SMPTE, 1977. Available at https://doi.org/10.5594/J06717

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Bernard Marti; New Ancillary Services Using a Television Channel, SMPTE Journal ( Volume: 86, Issue: 11, November 1977); SMPTE, 1977. Available at https://doi.org/10.5594/J06717

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Bernard Marti; New Ancillary Services Using a Television Channel, SMPTE Journal ( Volume: 86, Issue: 11, November 1977); SMPTE, 1977. Available at https://doi.org/10.5594/J06717

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<span class="citation">Bernard Marti; <cite>New Ancillary Services Using a Television Channel</cite>, SMPTE Journal ( Volume: 86, Issue: 11, November 1977); SMPTE, 1977. Available at <a href="https://doi.org/10.5594/J06717" target="_blank" rel="noopener">https://doi.org/10.5594/J06717</a></span>

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Bernard Marti; New Ancillary Services Using a Television Channel, SMPTE Journal ( Volume: 86, Issue: 11, November 1977); SMPTE, 1977
doi: 10.5594/J06717
url: https://doi.org/10.5594/J06717

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<li>
Bernard Marti; <cite id="bib-10-5594-j06717">New Ancillary Services Using a Television Channel</cite>, SMPTE Journal ( Volume: 86, Issue: 11, November 1977); SMPTE, 1977
<span class="doi">10.5594/J06717</span>
</li>