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Back porch
Meaning
Noun
●
A
porch
at the
rear
of a building.
●
In Television:
The
portion
of each
scan line
between
the end
(rising
edge
) of the
horizontal
sync
pulse
and the
start
of
active
video
, used to
restore
the
black
level
reference
in
analog
video
.
Sourced from
Wiktionary
Synonyms
Backporch
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