Cobalt Digital COMPASS 9322 HD_SD De-Embedder - Manual (Page 12)

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932X Functional Description
1-8 9323 GROUP PRODUCT MANUAL 9323G-OM (V4.6)
Timecode Processor
(See Figure 1-3.) This function provides for extraction of timecode data from
the input video, and in turn re-insertion of timecode data into the output SDI.
The function can monitor analog and SDI video streams, and audio LTC over
a selected channel, for supported timecode formats and then select and
prioritize among analog VITC, SDI VITC, SDI ATC_VITC, SDI ATC_LTC,
and audio LTC timecode sources. Audio LTC can be received over a selected
balanced analog audio input, or as digital audio over a selected embedded or
AES input. If the preferred format is detected, the preferred format is used by
the card; if the preferred format is not detected, the card uses other formats
(where available) as desired.
The function also provides conversion between various timecode formats and
provides independent insertion and line number controls for each SDI
timecode output format.
Option +LTC allows bidirectional transfer and conversion
between VBI formats over SDI and audio LTC, as well as RS-485 LTC.
Audio LTC can be received or sent over a selected balanced analog audio
input, or as digital audio over a selected embedded or AES input.
Figure 1-3 Timecode Processor
SDI VITC
Detect/Extract
SDI ATC_LTC
Detect/Extract
SDI ATC_VITC
Detect/Extract
Priority/
Select
SDI
Video
Input
SDI VITC
Timecode
Proc/Embed
ATC_VITC
Timecode
Proc/Embed
ATC_LTC
Timecode
Proc/Embed
HD/SD–SDI
Video Output
Insert
Control
Line
Number
Control
Buffer/
Format
HD/SD–SDI
(From Video Proc)
Audio LTC
Select/Extract
Audio/
RS-485 LTC
Audio/RS-485
LTC Generate Audio LTC Out
RS-485 LTC Out