3 ms·
I don't think they were that advanced. The cheap consumer stuff would just use analogue circuitry to blank out the signal during the vertical blanking interval.
by LeoPanthera 5y ago
I don't think they were that advanced. The cheap consumer stuff would just use analogue circuitry to blank out the signal during the vertical blanking interval.
- dylan604 5y agoIt depends on the model. There were some that would allow one to adjust the contrast/chroma/etc. Of course it was all analog circuits, that's what made it all so accessible! Also, it probably wouldn't blank out the entire blanking as you'd lose CC or Teletext data. I forget the exact lines the macrovision appear on, but it was much higher than 17. We also used to embed ID codes in the blanking that would not get interferred with from macrovision defeaters that was also above line 17, so that was probably also on lines below macro. man, this is some blast from the past type stuff.