Digital Signal Processing Reference
In-Depth Information
among other things, the VPS (video program system) data for controlling
video recorders. In detail, the data line is used for transmitting the follow-
ing data:
•
Byte 1: Run-in 10101010
•
Byte 2: Start code 01011101
•
Byte 3: Source ID
•
Byte 4: Serial ASCII text transmission (source)
•
Byte 5: Mono/stereo/dual sound
•
Byte 6: Video content ID
•
Byte 7: Serial ASCII text transmission
•
Byte 8: Remote control (routing)
•
Byte 9: Remote control (routing)
•
Byte 10: Remote control
•
Byte 11 to 14: Video program system (VPS)
•
Byte 15: Reserved
Fig. 2.15.
Data line (mostly line 16 in the vertical blanking interval)
The VPS bytes contain the following information:
•
Day (5 bits)
•
Month (4 bits)
•
Hour (5 bits)
•
Minute (6 bits) = virtual starting time of the program
•
Country ID (4 bits)
•
Program source 11) (6 bits)
Search WWH ::
Custom Search