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Journal of the Society of Motion Picture and Television Engineers ( Volume: 60, Issue: 5, May 1953)
[ACTIVE]

Influence of Echoes on Television Transmission

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPTE
Volume
60, No. 5, pp. 572–596
Abstract
Echoes in television transmission appear as irregularities in attenuation and phase characteristics. Tolerances on echoes well removed from the main picture are independent of the spacing (or echo delay). They vary inversely with spacing (echo delay) for close-up echoes. In the phase characteristic this leads to placing tolerances on envelope delay for large-scale features of the phase distortion, and on phase delay for fine structure irregularities. Tolerances are also placed upon the overall phase drift within the pass band. Similar treatment appears for the three classifications of attenuation distortion. Applications to broadcast and theater television are discussed.
Publication Date
1953-05-01
DOI
10.5594/J01070
ISSN
Print: 0898-042X
Link
https://doi.org/10.5594/J01070
Author(s)
Pierre MertzBell Telephone Laboratories, 463 West St., New York 14.
Copyright
© 1953 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • Effective Sum of Multiple Echoes in Television [Active]
  • Data on Random-Noise Requirements for Theater Television [Active]
  • 1. Gannett D. K. Green E. I. , “Wire transmission system for television,” Trans. AIEE , 46 : 946 – 953 , June 1927 . EXTERNAL
  • 11. Fink D. G. , Television Standards and Practice , McGraw Hill Book Company , New York , 1943 , pp. 219 , 227 . EXTERNAL
  • 2. Reynolds F. W. , “A new telephotograph system,” Bell Sys. Tech. J. , 15 : 549 – 574 , Oct. 1936 . EXTERNAL
  • 3. Wheeler H. A. , “The interpretation of amplitude and phase distortion in terms of paired echoes,” Proc. IRE , 27 : 359 – 385 , June 1939 . This reference includes a note by C. R. Burrows indicating an exact solution to the problem by L. A. MacColl in unpublished memoranda of 1931. EXTERNAL
  • 4. Bode H. W. , “Relations between attenuation and phase in feedback amplifier design,” Bell Sys. Tech. J. , 19 : 421 – 454 , July 1940 . This reference includes a note crediting earlier work on this problem, particularly that of Y. W. Lee in 1932. EXTERNAL
  • 5. Nyquist H. Brand S. , “Measurement of phase distortion,” Bell Sys. Tech. J. , 9 : 522 – 549 , July 1930 . EXTERNAL
  • 6. Mertz P. , “Tolérances sur le déphasage et l'affaiblissement des circuits internationaux de télévision,” CCIF, 3ème Commission de Rapporteurs, Document No. 21, p. 4 , 1947/1948 . EXTERNAL
  • 7. Mertz P. Fowler A. D. Christopher H. N. , “Quality rating of television images,” Proc. IRE , 38 : 1269 – 1283 , Nov. 1950 . EXTERNAL
  • 9. CCIR, Study Programme No. 32, “The requirements for the transmission of television over long distances,” Annex II, p. 175 , Documents of the 6th Plenary Assembly, Vol. I, Geneva, 1951 . EXTERNAL
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Preview:
Pierre Mertz; Influence of Echoes on Television Transmission, Journal of the Society of Motion Picture and Television Engineers ( Volume: 60, Issue: 5, May 1953); SMPTE, 1953. Available at https://doi.org/10.5594/J01070
Snippet:
Pierre Mertz; Influence of Echoes on Television Transmission, Journal of the Society of Motion Picture and Television Engineers ( Volume: 60, Issue: 5, May 1953); SMPTE, 1953. Available at https://doi.org/10.5594/J01070

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Pierre Mertz; Influence of Echoes on Television Transmission, Journal of the Society of Motion Picture and Television Engineers ( Volume: 60, Issue: 5, May 1953); SMPTE, 1953. Available at https://doi.org/10.5594/J01070
Snippet:
<span class="citation">Pierre Mertz; <cite>Influence of Echoes on Television Transmission</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 60, Issue: 5, May 1953); SMPTE, 1953. Available at <a href="https://doi.org/10.5594/J01070" target="_blank" rel="noopener">https://doi.org/10.5594/J01070</a></span>

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Preview:
Pierre Mertz; Influence of Echoes on Television Transmission, Journal of the Society of Motion Picture and Television Engineers ( Volume: 60, Issue: 5, May 1953); SMPTE, 1953
doi: 10.5594/J01070
url: https://doi.org/10.5594/J01070
Snippet:
<li>
Pierre Mertz; <cite id="bib-10-5594-j01070">Influence of Echoes on Television Transmission</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 60, Issue: 5, May 1953); SMPTE, 1953
<span class="doi">10.5594/J01070</span>
</li>

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