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Section 2— Control Panel Descriptions
The Video Store and Key Store buttons select whether the Frame
Store subpanel is assigned to the video channel or key channel.
One of these buttons is always lit, and Video Store and Key Store
may be selected simultaneously.
Operations that can be independently set for video and key
channels are as follows:
■ Freeze
■ Grab
■ Field 1 and Field 2
When Video Store and Key Store are delegated simultaneously, the
key channel settings are automatically aligned with the video
channel settings.
The Freeze button provides a freeze/unfreeze function that
toggles between states. Press once to freeze, press a second time to
unfreeze. When enabled, this button stops data from being
written to the frame store, resulting in a frozen image.
Pressing the
Grab button updates the frame store with new input
data and freezes the new data. If freeze is off (moving video is
coming out of the frame store), pressing Grab turns on freeze.
Freeze can be turned off again by pressing the Freeze button. If
freeze is on and Grab is pressed, the frame store is unfrozen for
two fields and then frozen again. The Freeze button remains lit to
indicate that freeze is still on. Since the GRAB button initiates a
single one-time action, it lights only while the button is pressed
and for a short instant afterward.
Key
Store
Video
Store
Freeze
Grab