CompuServe Messages

#Video digitizers

    18-Sep-88 07:42:28
Fm: Fred Murray 73455,402
To: Stan Kalisher (Impulse) 76004,1767
You mentioned a 768×768 NTSC signal? (approx) Since NTSC uses 525 scan/raster lines per frame (2 fields interlaced) How can we have more than the number of horizontal scan lines? (Not even all of the 525 lines are visible due to blanking/timing and/or other signals present in the NTSC signal.) Is this correct?