Astro Design PORTABLE SIGNAL GENERATOR PROGRAMMING SOFTWARE SP-8848 - Manual (Page 47)

Chapter 2 Operation
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Action data setting screen
Pull-down scroll
Action data setting screen
Action data setting screen
Click the check box to the left of the action data type to be set to check it. The setting items for each type can now be
selected.
Pull-down scroll
Scrolling can be simulated by employing the 2-3 pull-down function and other scroll functions.
2-3 pull down function
This is a conversion method for ensuring the coordination of 30 fps/60-field NTSC signals with 24 fps films when
converting regular movies and other film sources into video signals. The first frame of the film is converted into the
equivalent of 2 fields and the second frame into the equivalent of 3 fields, and the resulting 5-field format for every 2 film
frames is repeated so that 24 frames are converted into 60 fields. DVD players which support a progressive output
capability can detect this 2-3 pull-down processing information and reproduce the 24 original frames. However, a TV
monitor which supports the progressive system must be used for playback.