DPCM Bit-Rate Reduction for Component TV Signals at ENG Levels

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 98, No. 5, pp. 353–359
Abstract: Electronic news gathering (ENG) is used extensively by broadcasters to obtain the material for their news programs. Because of the time constraints, ENG increasingly relies on satellite and common carrier facilities to carry video and audio signals from remote locations to the main TV studio. Due to the ongoing digitization of the telecommunication links and eventually of the main station as well as of the ENG recorder itself, it is of prime interest to the broadcaster to study the mechanics of bit-rate reduction for the digital video signal at ENG quality levels. Our study presents a complete digital ENG concept, based on differential pulse-code modulation (DPCM) techniques permitting the use of links in the DS-3 hierarchy level (44.736 Mbits/sec). On-site recorded news could be transmitted to the main station not only with very short delays but also in a very flexible manner. Several DPCM encoding schemes are investigated to compress the 2:1:1 digital video signal to the desired link capacity. The following parameters are also taken into consideration: error characteristics of the various transmission links, error correction, and portability of the equipment.
Publication Date: 1989-05-01
DOI: 10.5594/J02757
ISSN: Print: 0036-1682
Link: https://doi.org/10.5594/J02757
Author(s): Jean AubryCBC Engineering, Montreal, Que., Canada H4W 1R5
Yves BuhlerINRS-Télécommunications, Ile-des-Soeurs, Que., Canada H3E 1H6.
Copyright: © 1989 Society of Motion Picture and Television Engineers, Inc.

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Jean Aubry and Yves Buhler; DPCM Bit-Rate Reduction for Component TV Signals at ENG Levels, SMPTE Journal ( Volume: 98, Issue: 5, May 1989); SMPTE, 1989. Available at https://doi.org/10.5594/J02757

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Jean Aubry and Yves Buhler; DPCM Bit-Rate Reduction for Component TV Signals at ENG Levels, SMPTE Journal ( Volume: 98, Issue: 5, May 1989); SMPTE, 1989. Available at https://doi.org/10.5594/J02757

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Jean Aubry and Yves Buhler; DPCM Bit-Rate Reduction for Component TV Signals at ENG Levels, SMPTE Journal ( Volume: 98, Issue: 5, May 1989); SMPTE, 1989. Available at https://doi.org/10.5594/J02757

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<span class="citation">Jean Aubry and Yves Buhler; <cite>DPCM Bit-Rate Reduction for Component TV Signals at ENG Levels</cite>, SMPTE Journal ( Volume: 98, Issue: 5, May 1989); SMPTE, 1989. Available at <a href="https://doi.org/10.5594/J02757" target="_blank" rel="noopener">https://doi.org/10.5594/J02757</a></span>

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Jean Aubry and Yves Buhler; DPCM Bit-Rate Reduction for Component TV Signals at ENG Levels, SMPTE Journal ( Volume: 98, Issue: 5, May 1989); SMPTE, 1989
doi: 10.5594/J02757
url: https://doi.org/10.5594/J02757

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<li>
Jean Aubry and Yves Buhler; <cite id="bib-10-5594-j02757">DPCM Bit-Rate Reduction for Component TV Signals at ENG Levels</cite>, SMPTE Journal ( Volume: 98, Issue: 5, May 1989); SMPTE, 1989
<span class="doi">10.5594/J02757</span>
</li>