🚀 go-pugleaf

   : On top of this, the would-be Line-Doubler would have to be able to intercept both the 
   : even and odd scan lines, by predicting the change between frames for each field for 
   : every frame, convert it to 30kHz, and redisplay both even and odd field scan lines as 
   : a composite image.  The prediction part is what separates the Faroudja between lesser 
   : line-doublers.

Our upcoming DblScan 4000 handles NTSC and PAL modes great. In comes 15kHz, 
out goes 30kHz. Even interlace looks great on any VGA monitor.

What do you need to predict?  Can you make a scandoubler in any other way
than blazing out the incoming signal at double speed, line by line,
field by field? If you are making composites from fields, or buffering
the fields together, you have a flicker fixer, which kills moving video
converting it from 50/60 Hz to 25/30 Hz. Great for A3000 with no fast 
native 30kHz modes, not good for much else.

   : This is a very tall order for any machine.  Think of the bandwidth and processing 
   : power needed.  It would be quite a lucrative market if this were possible, since many 
   : line-doublers are >$5000 easily and when you have a 8 foot screen in a home theater 
   : that shows those glaring scan lines.  But I believe Faroudja line-quadrupler was just 
   : released...

Line-quadrupler?  Don't you need 60kHz monitor/projector/whatever for
that?

-JP

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