Quote:
Originally Posted by NewVista
So the sneaky Sony TV would store the 'NTSC' lines and repeat them in place if the sequential 'PAL' lines 
A standard PAL-D TV would store the 'NTSC' line and process it with subsequent 'PAL' line. This would halve the chroma vertical resolution.
But it gets worse because of interlaced scanning: now sampled detail from two lines above is added to 'PAL' line
creating more degradation than unprocessed pure 'PAL' & 'NTSC' lines (as in a PAL-S receiver)?
And if there is picture motion even more blur. |
Remember reading somewhere that the Sony idea of repeating a dropped line of chroma with a delay line wouldn't work very well in theory, but in practice it worked brilliantly, I remember how good & bright the pictures were, I was looking for the reduced vertical definition but couldn't see it. Some clever people at Sony me thinks...