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Not entirely related but I didn't find much information about the NTSC/PAL decoding schemes. Lots of introductory material but nothing about what they actually
by wiz21c 3y ago
Not entirely related but I didn't find much information about the NTSC/PAL decoding schemes. Lots of introductory material but nothing about what they actually did in televisions back then (especially the filtering side). I guess it's because of patents...
- Animats 3y agoIt's covered in detail in Wikipedia.[1] Here's the NTSC color standard in the Federal Register.[2] The data sheet for a modern NTSC/PAL decoder IC.[3] Details of early color TV receivers.[4] [1] https://en.wikipedia.org/wiki/NTSC https://en.wikipedia.org/wiki/NTSC [2] https://www.govinfo.gov/content/pkg/CFR-2018-title47-vol4/pdf/CFR-2018-title47-vol4-sec73-682.pdf https://www.govinfo.gov/content/pkg/CFR-2018-title47-vol4/pd... [3] https://www.analog.com/media/en/technical-documentation/data-sheets/MAX9526.pdf https://www.analog.com/media/en/technical-documentation/data... [4] http://earlytelevision.org/color.html#systems http://earlytelevision.org/color.html#systems
- wiz21c 3y agoI was thinking about 2D filtering. But your comment triggered a new DuckDuckGo search and it happened to have some bits of information :-) https://www.extron.com/article/ntscdb4 https://www.extron.com/article/ntscdb4