Crystal Vision
Introduction
Input video from either the BNC input or the (optional) optical input is equalised and then
re-clocked. The video signal is passed to a delay line whose length is adjustable in
seconds, frames, line and pixel increments under control of the CPU. Following the delay
line is the timecode reinserter where previously extracted ATC packets or VITC data is
added to the video before the proc-amp where lift and gain can be applied to the video
components in the YUV or RGB domain. Finally, depending on the rear module fitted, the
video is output to the rear modules as either four BNC or three BNC and one optical
output.
Video delays in ViViD 3GT-20
3GT-20
Video Format
3Gb/s
HD
SD
Delay Range in
lines and frames.
2 lines->500 frames
2 lines->500 frames
3 lines->2750 frames
Max. Delay in
Secs.
10 secs @ 50Hz
8 secs @ 59.94Hz
20 secs @ 50Hz
16 secs @ 59.94Hz
110 secs @ 625 line
91 secs @ 525 line
Video Delays for ViViD 3GT-20
Block diagram
ViViD 3GT-20 Functional Block Diagram
ViViD 3GT-20 User Manual R1.1
4
20 January 2021