JVC TDR6 installation and operation guide DVB 422 Expanded Windows, 16-line and 32-line

3.Enable the encoder for Tiernan closed captions. Issue the front panel command Config>Service #>VBI>Tiernan CC=On or the remote

VE TCC ON command.

Decoder

4.Set the decoder VBI format control to automatically detect the type of VBI data to decode. Issue the front panel command

VBI>Format>VBI Format Cntrl=Auto or the remote VBI CONTROL AUTO command.

5.If your system requires you to manually set the type of VBI data to decode, follow these steps:

a.Set the decoder VBI format control to manual. Issue the front panel command VBI>Format>VBI Format Cntrl=Manual or the remote VBI CONTROL MANUAL command.

b.Set the VBI format to Tiernan closed captions. Issue the front panel command VBI>Format>VBI Format=Tiernan CC or the remote VBI FORMAT TIERNANCC command.

DVB 4:2:2 Expanded Windows, 16-line and 32-line

Tiernan encoders and decoders support both 16- and 32-line expanded windows operations. As with normal video encoding, the first 6 lines of the VBI region contain timing set-up information. Expanded Windows use the remaining lines in the VBI region, either 16 or 32 per frame (8 or 16 per field), to transmit data.

PAL

Lines 15 to 22 VBI Data

Line 23 First Line of Active Video

}

VBI Region

NTSC

}Lines 14 to 21 VBI Data

Line 22 First Line of Active Video

Active Picture

Line 311 Last Line of Active Video

Line 262 Last Line of Active Video

16-Line Expanded Windows Field for an Encoded Picture Frame

74 01-0870-401B 01/03 Tiernan VBI Data Transmission