Journal of the SMPTE ( Volume: 77, Issue: 11, November 1968)
[ACTIVE]
Limitations of Nonphased Color Video-Tape Recording Systems in Television Broadcasting
Metadata
- Publisher
- SMPTE — White Plains, NY, USA
- Doc Type
- Journal Article
- Content Type
- Original Research
- Abbreviated Title
- J SMPTE
- Volume
- 77, No. 11, pp. 1167–1170
- Abstract
- The earliest method of broadcasting color television programs from magnetic tape attempted to preserve the time-base stability of the chrominance information with respect to a stable color subcarrier by treating the off-tape chroma information separately from the luminance. This method has commonly been known as nonphased color because it characteristically fails to preserve the relationship between subcarrier and sync. The relevant FCC specifications and a typical non-phased color system are described; an analysis of the output components shows the subcarrier to undergo full correction while the quadrature modulation is left uncorrected. A number of subjectively disturbing effects are identified, including loss of dot cancellation, loss of luminance resolution and impairment of hue quality.
- Publication Date
- 1968-11-01
- DOI
10.5594/J10919- ISSN
- Print:
0361-4573 - Link
- https://doi.org/10.5594/J10919
- Author(s)
- A. J. BuxtonVideo Engineering Dept., Ampex Corp., 401 Broadway, Redwood City, Calif. 94063.C. P. GinsburgVideo Engineering Dept., Ampex Corp., 401 Broadway, Redwood City, Calif. 94063.
- Copyright
- © 1968 Society of Motion Picture and Television Engineers, Inc.
Bibliographic Reference(s)
- A Color Videotape Recorder [Active]
- Abrahams I. C. , “The ‘frequency interleaving’ principle in the NTSC Standards,” Proc. I.R.E. , 42 : 81 , Jan. 1954 . EXTERNAL
- Anderson C. E. , “Conversion to Color Recording Using the Ampex VR-1000 Videotape Recorder,” Ampex Corp. document, 1959 , 20 pages. EXTERNAL
- Roizen J. , “Magnetic recording of color television,” Electronics , 33 : 76 – 79 , January 1, 1960 . EXTERNAL
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A. J. Buxton and C. P. Ginsburg; Limitations of Nonphased Color Video-Tape Recording Systems in Television Broadcasting, Journal of the SMPTE ( Volume: 77, Issue: 11, November 1968); SMPTE, 1968. Available at https://doi.org/10.5594/J10919
Snippet:
A. J. Buxton and C. P. Ginsburg; Limitations of Nonphased Color Video-Tape Recording Systems in Television Broadcasting, Journal of the SMPTE ( Volume: 77, Issue: 11, November 1968); SMPTE, 1968. Available at https://doi.org/10.5594/J10919
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A. J. Buxton and C. P. Ginsburg; Limitations of Nonphased Color Video-Tape Recording Systems in Television Broadcasting, Journal of the SMPTE ( Volume: 77, Issue: 11, November 1968); SMPTE, 1968. Available at https://doi.org/10.5594/J10919
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<span class="citation">A. J. Buxton and C. P. Ginsburg; <cite>Limitations of Nonphased Color Video-Tape Recording Systems in Television Broadcasting</cite>, Journal of the SMPTE ( Volume: 77, Issue: 11, November 1968); SMPTE, 1968. Available at <a href="https://doi.org/10.5594/J10919" target="_blank" rel="noopener">https://doi.org/10.5594/J10919</a></span>
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A. J. Buxton and C. P. Ginsburg; Limitations of Nonphased Color Video-Tape Recording Systems in Television Broadcasting, Journal of the SMPTE ( Volume: 77, Issue: 11, November 1968); SMPTE, 1968
doi: 10.5594/J10919
url: https://doi.org/10.5594/J10919
doi: 10.5594/J10919
url: https://doi.org/10.5594/J10919
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<li> A. J. Buxton and C. P. Ginsburg; <cite id="bib-10-5594-j10919">Limitations of Nonphased Color Video-Tape Recording Systems in Television Broadcasting</cite>, Journal of the SMPTE ( Volume: 77, Issue: 11, November 1968); SMPTE, 1968 <span class="doi">10.5594/J10919</span> </li>