Cobalt Digital COMPASS 9034 Input Processing Analog to Digital Video - Manual (Page 12)

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9034 Functional Description
1-8 9034 PRODUCT MANUAL 9034-OM (V4.1)
Dolby ® Metadata Extractor/Re-inserter (9034-DEC only)
This function allows Dolby ® metadata from the Dolby decoder, to be inserted
in the output SDI. The extracted metadata is buffered and then output on a
user-selectable line number on the SDI output, and on an RS-485 port on
cards equipped with an appropriate Rear I/O Module.
Timecode Processor
(See Figure 1-2.) This function provides for extraction of timecode data from
the input video (for SD formats), and in turn re-insertion of timecode data into
the output SDI. Timecode insertion (depending on raster format) can select
and prioritize among SDI VITC, SDI ATC VITC, and SDI ATC LTC
timecode sources.
The function 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 AES input.
Figure 1-2 Timecode Processor
Analog VITC
Detect/Extract
Priority/
Select
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