Color Picture Source Synchronization by the Natlock System

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 78, No. 8, pp. 611–614
Abstract: Equipment has been developed to synchronize color television sources so that they can be mixed and split-screened together at a central point. The system, which can work with any number of sources, controls the timing and phase of each source by error signals coded as audio tones which are generated by comparison equipment at the mixing point and carried by telephone bandwidth circuits. Part of the system, which was developed primarily for remote sources mounted in vehicles, is also being used within a studio complex in London to perform color-subcarrier phasing. The lock-up times of the various arrangements and the final accuracy required are discussed.
Publication Date: 1969-08-01
DOI: 10.5594/J10836
ISSN: Print: 0361-4573
Link: https://doi.org/10.5594/J10836
Author(s): D. N. GregoryBritish Broadcasting Corporation, Broadcasting House, London, W 1, England. It was included as a part of the Panel Discussion, “Automatic Color Locking Systems,” presented on April 21, 1969, at the Society's Technical Conference in Miami Beach by David N. Gregory, British Broadcasting Corp., 630 Fifth Ave., New York, NY 10020.
J. L. BlissBritish Broadcasting Corporation, Broadcasting House, London, W 1, England. It was included as a part of the Panel Discussion, “Automatic Color Locking Systems,” presented on April 21, 1969, at the Society's Technical Conference in Miami Beach by David N. Gregory, British Broadcasting Corp., 630 Fifth Ave., New York, NY 10020.
I. D. B. MillarBritish Broadcasting Corporation, Broadcasting House, London, W 1, England. It was included as a part of the Panel Discussion, “Automatic Color Locking Systems,” presented on April 21, 1969, at the Society's Technical Conference in Miami Beach by David N. Gregory, British Broadcasting Corp., 630 Fifth Ave., New York, NY 10020.
C. J. AllenBritish Broadcasting Corporation, Broadcasting House, London, W 1, England. It was included as a part of the Panel Discussion, “Automatic Color Locking Systems,” presented on April 21, 1969, at the Society's Technical Conference in Miami Beach by David N. Gregory, British Broadcasting Corp., 630 Fifth Ave., New York, NY 10020.
Copyright: © 1969 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1. British Patent No. 1074824. EXTERNAL
2. Bliss J. L. Millar I. D. B. Allen C. J. , “Picture source synchronization the Natlock system,” EBU Review , Part A, Technical No. 107, Feb. 1968 . EXTERNAL
3. Bliss J. L. Gregory D. N. , “Synchronisation of PAL colour sources,” International Broadcasting Convention , London , Sept. 1968 . EXTERNAL
4. Morse D. R. , “Colour programme origination facilities,” presented to the EBU Symposium on Preparations for Colour Television, Feb. 1968 . EXTERNAL

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D. N. Gregory, J. L. Bliss, I. D. B. Millar, and C. J. Allen; Color Picture Source Synchronization by the Natlock System, Journal of the SMPTE ( Volume: 78, Issue: 8, August 1969); SMPTE, 1969. Available at https://doi.org/10.5594/J10836

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D. N. Gregory, J. L. Bliss, I. D. B. Millar, and C. J. Allen; Color Picture Source Synchronization by the Natlock System, Journal of the SMPTE ( Volume: 78, Issue: 8, August 1969); SMPTE, 1969. Available at https://doi.org/10.5594/J10836

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<span class="citation">D. N. Gregory, J. L. Bliss, I. D. B. Millar, and C. J. Allen; <cite>Color Picture Source Synchronization by the Natlock System</cite>, Journal of the SMPTE ( Volume: 78, Issue: 8, August 1969); SMPTE, 1969. Available at <a href="https://doi.org/10.5594/J10836" target="_blank" rel="noopener">https://doi.org/10.5594/J10836</a></span>

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<li>
D. N. Gregory, J. L. Bliss, I. D. B. Millar, and C. J. Allen; <cite id="bib-10-5594-j10836">Color Picture Source Synchronization by the Natlock System</cite>, Journal of the SMPTE ( Volume: 78, Issue: 8, August 1969); SMPTE, 1969
<span class="doi">10.5594/J10836</span>
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