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Journal of the SMPTE ( Volume: 69, Issue: 6, June 1960)
[ACTIVE]

A Vertical Aperture Equalizer for Television

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPTE
Volume
69, No. 6, pp. 395–401
Abstract
A vertical aperture equalizer employing delays of one scanning line has been built and has been used on commercial broadcasts to increase the subjective sharpness of television pictures. By using both vertical and horizontal aperture equalization, optical aperture defects can be corrected. By the use of vertical aperture equalization and scanning apertures with suitable responses, television in the future may be practically free of line structure and spurious pattern effects due to the scanning-line structure.
Publication Date
1960-06-01
DOI
10.5594/J13773
ISSN
Print: 0361-4573
Link
https://doi.org/10.5594/J13773
Author(s)
W. G. GibsonRCA Laboratories, David Sarnoff Research Center, Princeton, N. J.
A. C. SchroederRCA Laboratories, David Sarnoff Research Center, Princeton, N. J.
Copyright
© 1960 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • Image Gradation, Graininess and Sharpness in Television and Motion Picture Systems: Part I: Image Structure and Transfer Characteristics [Active]
  • Television Vertical Aperture Compensation [Active]
  • 2. Bedford A. V. , U.S. Patent No. 2,757,236. EXTERNAL
  • 3. Hopper A. L. , “Storing video information,” Electronics , pp. 122 – 125 , June 1951 . EXTERNAL
  • 4. Mertz P. Gray F. , “An image field as a double Fourier series,” from the paper “A theory of scanning,” Bell Sys. Tech. J. , 13 : 467 – 472 , July 1934 . EXTERNAL
  • 5. Wheeler H. A. Loughren A. V. , “The fine structure of television images,” Proc. IRE , 26 : 540 – 575 , May 1938 . EXTERNAL
  • 7. Kell R. D. Bedford A. V. Fredendall G. I. , “A determination of optimum number of lines in a television system,” RCA Rev. , 5 : 8 – 30 , July 1940 . EXTERNAL
  • 8. Kallmann M. E. , “Transversal filters,” Proc. IRE , 28 : 302 – 310 , July 1940 . EXTERNAL
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W. G. Gibson and A. C. Schroeder; A Vertical Aperture Equalizer for Television, Journal of the SMPTE ( Volume: 69, Issue: 6, June 1960); SMPTE, 1960. Available at https://doi.org/10.5594/J13773
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W. G. Gibson and A. C. Schroeder; A Vertical Aperture Equalizer for Television, Journal of the SMPTE ( Volume: 69, Issue: 6, June 1960); SMPTE, 1960. Available at https://doi.org/10.5594/J13773

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W. G. Gibson and A. C. Schroeder; A Vertical Aperture Equalizer for Television, Journal of the SMPTE ( Volume: 69, Issue: 6, June 1960); SMPTE, 1960. Available at https://doi.org/10.5594/J13773
Snippet:
<span class="citation">W. G. Gibson and A. C. Schroeder; <cite>A Vertical Aperture Equalizer for Television</cite>, Journal of the SMPTE ( Volume: 69, Issue: 6, June 1960); SMPTE, 1960. Available at <a href="https://doi.org/10.5594/J13773" target="_blank" rel="noopener">https://doi.org/10.5594/J13773</a></span>

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W. G. Gibson and A. C. Schroeder; A Vertical Aperture Equalizer for Television, Journal of the SMPTE ( Volume: 69, Issue: 6, June 1960); SMPTE, 1960
doi: 10.5594/J13773
url: https://doi.org/10.5594/J13773
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<li>
W. G. Gibson and A. C. Schroeder; <cite id="bib-10-5594-j13773">A Vertical Aperture Equalizer for Television</cite>, Journal of the SMPTE ( Volume: 69, Issue: 6, June 1960); SMPTE, 1960
<span class="doi">10.5594/J13773</span>
</li>

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