Tektronix 2200 Manual Do Utilizador
Glossary
G-5
setup change smoothly over a
predetermined time to those of another
effects setup.
predetermined time to those of another
effects setup.
E-MEM® (Effects Memory):
A GVG effects-
memory system capable of storing and
recalling switch and control settings of
switcher effects configurations.
recalling switch and control settings of
switcher effects configurations.
Encoded Chroma Key:
A chroma key which
uses an encoded video signal (e.g., from a
VTR) instead of separate RGB or Y, CR, CB
signals for deriving the key.
VTR) instead of separate RGB or Y, CR, CB
signals for deriving the key.
Encoded Video:
A video signal which
contains both luminance and chrominance
information in the same signal. (Also see
Composite Video, NTSC, and PAL.)
information in the same signal. (Also see
Composite Video, NTSC, and PAL.)
Encoder:
A device used to create a single
composite color signal from a set of
component signals. Commonly used on
switcher Program and Preview outputs for
composite monitor requirements.
component signals. Commonly used on
switcher Program and Preview outputs for
composite monitor requirements.
Error Message:
A message generated by
the program to identify a program error or
the area in which a malfunction occurs.
the area in which a malfunction occurs.
Event Number:
Number assigned by the
editing system to each performed edit.
Exception Processing:
The activity of a
CPU in response to an interrupt in its
normal execution of instructions.
normal execution of instructions.
Execution:
The carrying out of a particular
set of instructions.
External Key:
An input signal to the
switcher used exclusively as a key source.
Typically this key source is selected
automatically with the selection of the key
fill.
Typically this key source is selected
automatically with the selection of the key
fill.
Extrude:
A title enhancement in which a
depth dimension is added to the title key
signal.
signal.
F
Fade-to-Black:
See Preset Black Transition.
Fault Isolation:
The determination of the
cause of a failure by identifying a defective
component or circuit.
component or circuit.
Field:
One complete scan of the TV screen
by the electron beam. In the NTSC
standard, two interleaved fields of 262 and
263 raster lines make up a frame. In the
PAL standard, two interleaved fields of
312 and 313 raster lines make up a frame.
The duration of a field is approximately 1/
60 of a second in NTSC or 1/50 of a second
in PAL (625 lines).
standard, two interleaved fields of 262 and
263 raster lines make up a frame. In the
PAL standard, two interleaved fields of
312 and 313 raster lines make up a frame.
The duration of a field is approximately 1/
60 of a second in NTSC or 1/50 of a second
in PAL (625 lines).
File:
A collection of related records in a
computer system treated as a unit.
Fill or Insert Video:
The video or matte
signal used to fill the holes cut in the
background video by the key signal.
background video by the key signal.
Firmware:
Physical devices (integrated
circuits) that house computer programs.
(Also see Hardware and Software.)
(Also see Hardware and Software.)
Flag:
A bit of information used to tell the
program that some condition has
occurred.
occurred.
Flip-Flop:
A transition in which the video
sources selected on the background buses
exchange places at the end of the
transition; for example, the source selected
on A Background becomes selected on B
exchange places at the end of the
transition; for example, the source selected
on A Background becomes selected on B