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ARC130S SECTION
4
ARC130S 060801 Version 1 Issue 1
4.31
The ARC130S can read incoming aspect ratio signalling and output it. This means that the aspect ratio
conversion it performs can be automatically controlled by the incoming video signalling. It is possible to
program the action that the ARC takes for each of the incoming signalling values. The parameters that are
stored when the signalling is programmed are as follows:
1. Output picture Size.
2. Output picture Aspect ratio.
3. Output picture Horizontal position.
4. Output picture Vertical position.
5. Output line 23 signal.
6. Output video index signal.
7. Bypass Mode setting.
These parameters are also stored for the User Display Memories and are recalled when a User Memory
is selected.
Both line 23 and video index outputs can be turned on simultaneously. Note that if the line 23 output mode is
set to AFD then the line 23 output data will be the same as that being output on the video index signal. It is
however possible to program the Line 23 AFD and Video Index inputs independently.
The video index information is inserted on line 11 and 324 for 625 line systems and lines 14 and 277 for 525
line systems.