Design and Evolution of the A72 Digital Character Generator

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: This article discusses the design and evolution of the Abekas A72 Digital Character Generator (CG), and discusses how its architecture has affected its evolution. The A72 was built to offer the highest possible character quality and smooth motion effects, but it was initially unable to satisfy market needs for density and complexity of text pages. However, the flexibility of its design allowed the system to grow and evolve, and to offer capabilities and effects previously thought impossible to implement. The use of many general-purpose processors, with software used to control even low-level tasks normally “hard-wired” on a CG, allowed this growth to occur with few hardware modifications to existing models. This approach proved invaluable in keeping the CG up-to-date, and it may prove to be increasingly advantageous for future equipment design.
Publication Date: 1992-12-01
DOI: 10.5594/J02167
Link: https://doi.org/10.5594/J02167
Author(s): Adam J. Wilt

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Adam J. Wilt; Design and Evolution of the A72 Digital Character Generator, SMPTE Journal ( Volume: 101, Issue: 12, December 1992); SMPTE, 1992. Available at https://doi.org/10.5594/J02167

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Adam J. Wilt; Design and Evolution of the A72 Digital Character Generator, SMPTE Journal ( Volume: 101, Issue: 12, December 1992); SMPTE, 1992. Available at https://doi.org/10.5594/J02167

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Adam J. Wilt; Design and Evolution of the A72 Digital Character Generator, SMPTE Journal ( Volume: 101, Issue: 12, December 1992); SMPTE, 1992. Available at https://doi.org/10.5594/J02167

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<span class="citation">Adam J. Wilt; <cite>Design and Evolution of the A72 Digital Character Generator</cite>, SMPTE Journal ( Volume: 101, Issue: 12, December 1992); SMPTE, 1992. Available at <a href="https://doi.org/10.5594/J02167" target="_blank" rel="noopener">https://doi.org/10.5594/J02167</a></span>

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Adam J. Wilt; Design and Evolution of the A72 Digital Character Generator, SMPTE Journal ( Volume: 101, Issue: 12, December 1992); SMPTE, 1992
doi: 10.5594/J02167
url: https://doi.org/10.5594/J02167

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Adam J. Wilt; <cite id="bib-10-5594-j02167">Design and Evolution of the A72 Digital Character Generator</cite>, SMPTE Journal ( Volume: 101, Issue: 12, December 1992); SMPTE, 1992
<span class="doi">10.5594/J02167</span>
</li>