Digital Switching of FM Video

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: Frequency modulation (FM) technology offers a near alternative for supplying broadband video to residences and businesses. In previously reported switched FM video services, the switching function utilized analog heterodyning and wideband field-effect transistor (FET) analog circuits. Analog techniques are costly, power consuming, and susceptible to crosstalk. This paper describes the application of a 64 times 16 CMOS digital switch chip to switching FM video information. An experimental switching system has been used to demonstrate switching of standard television-quality FM video, providing a 55-dB signal-to-noise ratio (SNR). Digital switching of FM video results in a major reduction in cost, size, and power dissipation. It is also less susceptible to signal interference, making FM switching of several hundred I/O ports possible.
Publication Date: 1994-08-01
DOI: 10.5594/J06459
Link: https://doi.org/10.5594/J06459
Author(s): A. Forcucci, M. Cooperman

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A. Forcucci and M. Cooperman; Digital Switching of FM Video, SMPTE Journal ( Volume: 103, Issue: 8, August 1994); SMPTE, 1994. Available at https://doi.org/10.5594/J06459

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A. Forcucci and M. Cooperman; Digital Switching of FM Video, SMPTE Journal ( Volume: 103, Issue: 8, August 1994); SMPTE, 1994. Available at https://doi.org/10.5594/J06459

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A. Forcucci and M. Cooperman; Digital Switching of FM Video, SMPTE Journal ( Volume: 103, Issue: 8, August 1994); SMPTE, 1994. Available at https://doi.org/10.5594/J06459

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<span class="citation">A. Forcucci and M. Cooperman; <cite>Digital Switching of FM Video</cite>, SMPTE Journal ( Volume: 103, Issue: 8, August 1994); SMPTE, 1994. Available at <a href="https://doi.org/10.5594/J06459" target="_blank" rel="noopener">https://doi.org/10.5594/J06459</a></span>

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A. Forcucci and M. Cooperman; Digital Switching of FM Video, SMPTE Journal ( Volume: 103, Issue: 8, August 1994); SMPTE, 1994
doi: 10.5594/J06459
url: https://doi.org/10.5594/J06459

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A. Forcucci and M. Cooperman; <cite id="bib-10-5594-j06459">Digital Switching of FM Video</cite>, SMPTE Journal ( Volume: 103, Issue: 8, August 1994); SMPTE, 1994
<span class="doi">10.5594/J06459</span>
</li>