What are the categories of analog video?
- Share
- Issue Time
- 09-06-2021
There
are three main formats of analog video signals; PAL,NTSC and SECAM, in which
PAL is called P system and NTSC is called N system, as is often said.
PAL
(phase Alternating Line) is a TV system established in 1965. With the exception
of NTSC in parts of North America and East Asia and SECAM is adopted in most
parts of the world, which serves 25 frames per second.
NTSC
is the color television broadcasting standards formulated by National
television setting committee in 1952. It is adopted by most of the American
countries, like America, Canada and Mexico, and China Taiwan, Japan, Korea and
Philippine, as well as some TV company in Hongkong, South China. It serves 30
frames per second.
ECAM:
At present, countries that adopted SECAM is mainly commonwealth of In dependent
stares, such as Russia,France, Egypt and some French-speaking countries in
Africa.
Therefore, in order
to ensure that the analog video output of the movement can be used normally,
modules will output two kinds of analog video: PAL and NTSC for choice.