15 Dec
2011
15 Dec
'11
2:34 p.m.
NTSC = National Television Systems Committee,
established in 1940
with the purpose of codifying the US national television system.
Broadcast color TV was perhaps only a glimmer in some inventor's eye
back then.
This reminds me of a related question that I dont know the answer to.
The terms'PAL' and 'SECAM' refer to the method used ot encode the colour
information, they do not say who designed it, or the scan rates/ number
of lines used. It is, AFIAK, perfectly correct ot talk about a 525 line
PAL signal, IIRC that's PAL-N
But an NTSC colour signal implies not only the colour encoding, but also
the scan rates (60Hz vertical, 2 way inerlacesd, 525 lines) etc.
So my question is : If you use ''NTSC-like' colour encoding (phase angle
is the hue, amplitude is the saturation -- think of it as being PAL
without the altehrnate line flip) on a 625 line 50Hz vertical svideo
signal, what do you call it? Coloquially it's often called 'NTSC 50Hz, or
even NTSC-I (or NTSC-B/G) but those names are clearly wrogn if you're
being pedantic about it. What is the right neam?
-tony