Color Decoding a PCM NTSC Television Signal

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 83, No. 6, pp. 489–495
Abstract: Several techniques are developed for digital color decoding of NTSC television signals pulse-code modulated at 10.7-MHz rates (three times the color subcarrier frequency) and 14.3-MHz rates (four times the color subcarrier frequency). Digital comb filtering is also explored as a way to achieve superior color decoding. Encoding PCM NTSC television at the 14.3-MHz rate was found to afford the best algorithms for color decoding. A different PCM technique called Phase Alternating Line Encoding (PALE) permits encoding at 10.7 MHz and allows effective digital comb filtering and good color decoding. In the PALE technique, the phase of the 10.7-MHz digital encode command signal is inverted on adjacent television lines. Straight PCM encoding at 10.7 MHz is a poor third choice for comb filtering and color decoding applications.
Publication Date: 1974-06-01
DOI: 10.5594/J08760
ISSN: Print: 0361-4573
Link: https://doi.org/10.5594/J08760
Author(s): John P. RossiCBS Laboratories, High Ridge Road, Stamford, CT 06905
Copyright: © 1974 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

PCM Encoded NTSC Color Television Subjective Tests [Active]
1. Rabiner Lawrence R. Rader Charles M. , Eds., Digital Signal Processing , IEEE Press , 1972 . EXTERNAL
2. Gold Bernard Rader Charles M. , Digital Processing of Signals , McGraw Hill, Inc. , 1969 . EXTERNAL
3. McIlwain K. Dean C. E. , Eds., Principles of Color Television , John Wiley and Sons , N.Y. , 1958 . EXTERNAL
5. Goldberg A. A. Rossi J. P. , Internal Disclosure , CBS Laboratories , Stamford, CT 06905, April 1973 . EXTERNAL

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John P. Rossi; Color Decoding a PCM NTSC Television Signal, Journal of the SMPTE ( Volume: 83, Issue: 6, June 1974); SMPTE, 1974. Available at https://doi.org/10.5594/J08760

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John P. Rossi; Color Decoding a PCM NTSC Television Signal, Journal of the SMPTE ( Volume: 83, Issue: 6, June 1974); SMPTE, 1974. Available at https://doi.org/10.5594/J08760

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John P. Rossi; Color Decoding a PCM NTSC Television Signal, Journal of the SMPTE ( Volume: 83, Issue: 6, June 1974); SMPTE, 1974. Available at https://doi.org/10.5594/J08760

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<span class="citation">John P. Rossi; <cite>Color Decoding a PCM NTSC Television Signal</cite>, Journal of the SMPTE ( Volume: 83, Issue: 6, June 1974); SMPTE, 1974. Available at <a href="https://doi.org/10.5594/J08760" target="_blank" rel="noopener">https://doi.org/10.5594/J08760</a></span>

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John P. Rossi; Color Decoding a PCM NTSC Television Signal, Journal of the SMPTE ( Volume: 83, Issue: 6, June 1974); SMPTE, 1974
doi: 10.5594/J08760
url: https://doi.org/10.5594/J08760

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John P. Rossi; <cite id="bib-10-5594-j08760">Color Decoding a PCM NTSC Television Signal</cite>, Journal of the SMPTE ( Volume: 83, Issue: 6, June 1974); SMPTE, 1974
<span class="doi">10.5594/J08760</span>
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Referenced By

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Signal System Design for a Digital Video Recording System [Active]
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PCM NTSC Television Characteristics [Active]
Report of the SMPTE Digital Television Study Group [Active]
PCM Signal Codecs for Video Applications [Active]
Differential Phase and Gain Measurements in Digitized Video Signals [Active]
Digital Television Image Enhancement [Active]
Digital Techniques for Reducing Television Noise [Active]