EN530 HDTV Smart Encoder IV
Begin RealTime Mode
:
<CTRL+A>2 [Channel] [Rollup] [bBase] <ENTER>
End
RealTime Mode
: <CTRL+C>
Displayed as RTCAP. When a port enters the command to begin RealTime
mode, text entered through that port will be encoded into a rollup caption
display and replace upstream caption data for the specified channel in the SD
and HD outputs. The EN530 will automatically create all necessary control and
formatting codes. When RealTime mode is ended, the channel will return to
upstream Regeneration.
Data entered in RealTime must be in ASCII text format with a carriage return
(0Dh or <ENTER>) at the end of each line of data. Because a line of data is
processed only upon receipt of a carriage return, text may be edited by use of a
backspace (08h or <BACKSPACE>) at any time before the carriage return.
The input text may be formatted to fit on 32 character lines by sending a
carriage return at word boundaries approaching the 32 character limit. If
sufficient data to fill a line is not available within a reasonable amount of time,
a carriage return should be sent to ensure timeliness for the queued data.
Channel
specifies which NTSC caption channel the ASCII data that will
be entered is intended for. Enter CC1 for primary language captioning or
CC3 for secondary language captioning. If no parameter is entered, CC1
will be assumed.
Rollup
sets the number of rows in the rollup caption display that will be
created. Possible values are 2, 3, and 4. If no setting is entered, 3 will be
assumed.
Base
sets the row from which the caption display will begin rolling up. The
parameter value must be entered with a leading “b”. Possible values range
from b2 (top of the screen) to b15 (bottom of the screen). The default value
is b15. Always set the Base value at least as large as the number of rows in
the rollup display, or else the uppermost row(s) of the display will not be
visible.
©2000-2007 EEG Enterprises, Inc.
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