A Proposal for Compatibly Improving the Scrambling of SMPTE 259M

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Publisher: SMPTE — White Plains, NY
Doc Type: Conference Paper
Content Type: Original Research
Volume: 1995, No. 14, pp. 22–33
Abstract: A method has been devised which will inhibit the generation of pathological serial digital signals or other serial signals with poor statistics which adversely affect clock recovery and cable equalization. This is accomplished by adaptively dithering the LSB of certain video words only when such a pattern of poor statistics would otherwise occur. LSB dither will not be visible on picture monitors. Furthermore, the dither will occur very infrequently. A complementary descrambler has been developed which will reverse the dither when it occurs. The circuitry which accomplishes these goals is simple. There is no additional time delay introduced by the improved scrambling algorithm. The primary advantage of this system is that the serial digital signal is made much more robust.
Publication Date: 1995-02-01
DOI: 10.5594/M00826
Link: https://doi.org/10.5594/M00826
Author(s): David L. HershbergerThe Grass Valley Group, Inc. Grass Valley, California
Copyright: © 1995 Society of Motion Picture and Television Engineers, Inc.

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David L. Hershberger; A Proposal for Compatibly Improving the Scrambling of SMPTE 259M, SMPTE Meetings and Conferences ( February 1995); SMPTE, 1995. Available at https://doi.org/10.5594/M00826

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David L. Hershberger; A Proposal for Compatibly Improving the Scrambling of SMPTE 259M, SMPTE Meetings and Conferences ( February 1995); SMPTE, 1995. Available at https://doi.org/10.5594/M00826

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David L. Hershberger; A Proposal for Compatibly Improving the Scrambling of SMPTE 259M, SMPTE Meetings and Conferences ( February 1995); SMPTE, 1995. Available at https://doi.org/10.5594/M00826

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<span class="citation">David L. Hershberger; <cite>A Proposal for Compatibly Improving the Scrambling of SMPTE 259M</cite>, SMPTE Meetings and Conferences ( February 1995); SMPTE, 1995. Available at <a href="https://doi.org/10.5594/M00826" target="_blank" rel="noopener">https://doi.org/10.5594/M00826</a></span>

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David L. Hershberger; A Proposal for Compatibly Improving the Scrambling of SMPTE 259M, SMPTE Meetings and Conferences ( February 1995); SMPTE, 1995
doi: 10.5594/M00826
url: https://doi.org/10.5594/M00826

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<li>
David L. Hershberger; <cite id="bib-10-5594-m00826">A Proposal for Compatibly Improving the Scrambling of SMPTE 259M</cite>, SMPTE Meetings and Conferences ( February 1995); SMPTE, 1995
<span class="doi">10.5594/M00826</span>
</li>