Digital Signal Processing Reference
In-Depth Information
White (0.714 V)
Black (0.055 V)
Blank (0V)
Sync (-0.286 V)
t
10 .
s
52 .
us
63.6
s
FIGURE 14.47
The demodulated signal level for one NTSC scan line.
H
H
H
Vertical
synchronizing
pulses
Equalizing pulses
Equalizing pulses
Odd field
Vertical blanking
H/2
Vertical
synchronizing
pulses
Equalizing pulses
Equalizing pulses
Even field
Vertical blanking
Horizontal syn. pulse
Back porch
Horizontal blanking
Front porch
Horizontal blanking
8 cycles color subcarrier burst
Color subcarrier
FIGURE 14.48
Vertical synchronization for each field and the color subcarrier burst.
Search WWH ::
Custom Search