Knowing this, the way to have a non-interlaced signal, you just make sure vblank occurs at the same time for each field, rather than alternating. This seems to be referred to as 526 or 524-line NTSC, which kinda hints on how this is accomplished.
Pretend like you're always drawing an odd field, and either remove the half-active scanline at the end of the field (524-line), or add an extra hblank double-rate pulse at the end of the field (526-line).
So can this info help anyone make a scan converter for computer graphics?
Everyone wants to convert game graphics from let's say an emulator running on a PC or laptop, to a TV at true 240p low resolution!
Just the thought that it's almost impossible to do this baffles me extremely.
There are some scan converters that do this, but they are way too expensive or hard to find and weren't meant for the gaming community anyway.
Can't anyone make something like this?
1. Any PC (or laptop) to small Converter via VGA.
2. Small Converter to TV via S-video.
3. A switch to convert the Interlaced image to a Non-interlaced image. (240p at 60hz)
Why the hell not??
I would pay anything to anyone who is willing to make me one like this.
Oh, and it better have ZERO (0) lag.