Closed Caption Encoder - Ultech Corporation DV2000 User Manual

6 ULTECH DV2000 User's Manual

1.2 Closed Caption Encoder

Caption encoding is where DV2000 truly excels. The heart of the encoder is the CCX
caption encoding software module. CCX is ULTECH's PC-based closed caption encoding
program. This program has been in use during the last three years in dozens of post produc-
tion and duplication facilities. CCX has evolved into a stable and highly accurate method for
metering captions based on time code. It ensures that captions will be revealed on the
viewer's screen at exactly the moment intended by the caption's creator. We've taken our
time-tested CCX software and modified it for use in the DV2000.
DV2000's most important feature is its ability to read caption files from the industry's
leading agencies and caption software providers. Files from unsupported software venders
may be converted to ULTECH .ULT format and read directly. Of course, DV2000 may still
encode captions the old fashion way—by sending data to a DV2000 serial port from a PC.
DV2000 can encode on any VBI line, in component or composite format, in NTSC or PAL.
It can encode field 2 XDS data such as "V-chip" data while encoding captions in field 1.
DV2000 has an upstream digital caption decoder, so it can reencode, pass, or merge data per
EIA-608 recommendations. All of DV2000's encoding functions are performed in software-
software that can be upgraded via ULTECH's web site. This ensures that DV2000 will stay
current no matter what the industry may conjure up. Even DV2000's waveform generator is
controlled via software. A benefit of this is that the caption waveform's "0 IRE" level and its
"50 IRE" level may be set from the front panel or via script commands—no more problems
with VTR's and converters that strip or add NTSC setup levels.