A Digital Velocity and Amplitude Error-Correction System for Component Time Base Correctors

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 97, No. 11, pp. 901–907
Abstract: This article describes a digital implementation of a velcomp (velocity compensation) and automatic gain control (AGC) system contained in a new component time base corrector design. Techniques of correcting amplitude and phase errors in the demodulated chroma signal through coordinate transformations are developed, and linear interpolation of the correction values calculated for each burst sample through incremental addition is explained. The design tradeoffs and implementation are discussed. Improvements in the playback chroma signal of ¾-in. VCRs, particularly those with track-following heads, are shown.
Publication Date: 1988-11-01
DOI: 10.5594/J06501
ISSN: Print: 0036-1682
Link: https://doi.org/10.5594/J06501
Author(s): Robert L. BleidtFortel. Inc., Norcross, GA
Copyright: © 1988 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

Technical Advances in Type-C Picture Processing [Active]
2. Newman W. M. , in Principles of Interactive Computer Graphics McGraw-Hill : New York , 1979 , p. 22 . EXTERNAL

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Robert L. Bleidt; A Digital Velocity and Amplitude Error-Correction System for Component Time Base Correctors, SMPTE Journal ( Volume: 97, Issue: 11, November 1988); SMPTE, 1988. Available at https://doi.org/10.5594/J06501

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Robert L. Bleidt; A Digital Velocity and Amplitude Error-Correction System for Component Time Base Correctors, SMPTE Journal ( Volume: 97, Issue: 11, November 1988); SMPTE, 1988. Available at https://doi.org/10.5594/J06501

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<span class="citation">Robert L. Bleidt; <cite>A Digital Velocity and Amplitude Error-Correction System for Component Time Base Correctors</cite>, SMPTE Journal ( Volume: 97, Issue: 11, November 1988); SMPTE, 1988. Available at <a href="https://doi.org/10.5594/J06501" target="_blank" rel="noopener">https://doi.org/10.5594/J06501</a></span>

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<li>
Robert L. Bleidt; <cite id="bib-10-5594-j06501">A Digital Velocity and Amplitude Error-Correction System for Component Time Base Correctors</cite>, SMPTE Journal ( Volume: 97, Issue: 11, November 1988); SMPTE, 1988
<span class="doi">10.5594/J06501</span>
</li>