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Chapter 5 Basic Operations — DSK (Downstream key)
Masking the DSK
Mask the key signals using the mask signal of the box pattern. The following gure is the status when [Type] is set to [ForeGround], and [Invert] is set to
[Off].
Area where the key signal is effective
Video signal range
Area masked
[Right][Left]
[Top]
[Bottom]
[50]
[25]
[0]
[−25]
[−50]
[−25]
[−50]
[25]
[0] [50]
1
Select the <DSK MISC> button → [DSK1] to [DSK4] → [Setting] tab.
2
Select an item in [Mask] in the [Mask] column.
f Set the mask method.
[Off] Does not mask the key signals.
[4:3] Masks the signals in the 4:3 aspect ratio.
[Manual] Masks the area set in [Mask Adjust1] or [Mask Adjust2].
3
Select an item in [Type] in the [Mask] column.
f Set the image to be masked.
[ForeGround] Masks the foreground and displays the background.
[BackGround] Masks the background and displays the foreground.
4
Select an item in [Invert] in the [Mask] column.
[Off] Does not invert the mask signal.
[On] Inverts the mask signal.
5
Set [Left], [Top], [Right], and [Bottom] in the [Mask Adjust1]/[Mask Adjust2] column.
f Set the area to be masked. The [Left] setting cannot exceed the [Right] setting (and vice versa), and the [Top] setting cannot exceed the [Bottom]
setting (and vice versa).
[Left] Masks the key left position.
[Top] Masks the key top position.
[Right] Masks the key right position.
[Bottom] Masks the key bottom position.
Setting the priority
Set the priority (image positioning). The default setting is as shown in the following gure.
Background image
[DSK4]: [1st]
[DSK3]: [2nd]
[DSK2]: [3rd]
[DSK1]: [4th]
1
Select the <DSK MISC> button → [MISC] → [Misc] tab.
2
Select an item in [DSK1] to [DSK4] in the [DSK Priority] column.
f Select the priority for any key from [1st] to [4th].
f Changing the setting of one item will change the settings of other items accordingly. In the default setting, if [DSK1] is changed from [4th] to [1st],
then the settings of [DSK2] to [DSK4] also change as follows.
- [DSK2]: [3rd] → [4th]
- [DSK3]: [2nd] → [3rd]
- [DSK4]: [1st] → [2nd]