Grass Valley 4300 Krystal Reference Manual v.3.1 - Manual (Page 307)

Krystal 4300 Reference Glossary-3
D
Delegate
The Control Panel, or a section of it, is dele-
gated to a channel or function if Control Pan-
el changes affect parameters associated with
that channel or function. For example, a con-
trol channel is delegated for control by the
panel by lighting the Deleg. button for that
channel. The joystick is delegated to a trans-
form function by lighting a transform but-
ton.
Detent
A system defined increment of position, size,
angle of rotation, or amount of perspective
(usually based on screen or picture size).
Pressing the Center button once sets the dele-
gated transform to the closest evenly divisi-
ble detent value. For example, the spin
transform detent is 0.25, resulting in detent
values of 0.0, 0.25, 0.50, 0.75, 1.00, 1.25, etc.
Duration
The length of time expressed in seconds,
frames, and fields (odd or even) that a partic-
ular effect or keyframe lasts.
DPM (Digital Picture Manipulator)
A video effects system which can digitally
manipulate a video picture to change its size,
shape, rotation in space, etc.
DPOP
Double Press Open. Double pressing a panel
button to “pop” to another menu.
E
Effect
A sequence of one or more keyframes. An ef-
fect can reside in either a disk effect file or an
effect register, and may be either single or
multiple channel.
Effect Register
An area in memory representing one com-
plete effect. Effect registers are referenced by
a two digit number from 00 through 99.
Effect Manager
The electronics that calculates all of the pa-
rameters needed to produce an effect. These
parameters are delivered to the Video Pro-
cessors (up to four) which perform the actual
image processing.
Enabled Channel
Channels that run as part of the current effect
and can be edited. Channels are enabled by
pressing the associated Control Panel Enable
button.
Enhanced Image Fidelity
This option provides cleaner resolution by
changing the way in which the luminance,
chrominance, and key signals are processed.
Enhanced Video
See Enhanced Image Fidelity.
E-MEM (Effects Memory)
A Grass Valley proprietary effects-memory
system capable of storing and recalling DPM
and Switcher effects.
External Key
An input signal to Krystal used exclusively
as a key source.
F
Field
One complete scan of the TV screen by the
electron beam. In the NTSC standard, two in-
terleaved fields of 262 and 263 raster lines
make up a frame. In the PAL standard, two
interleaved fields of 312 and 313 raster lines