Philips Semiconductors
Preliminary specification
YUV one chip picture improvement based on luminance
vector-, colour vector- and spectral processor
Input signals
Table 1
Amplitude mode selection
FUNCTION
0.315 V luminance (black to white) at
YIN
1.0 V luminance (black to white) at YIN
Luminance determined histogram
FUNCTION
histogram segments fixed
histogram segments determined by peak
white
Contour filter selection
FUNCTION
peaking frequency is 2 MHz at 1f
H
or
4 MHz at 2f
H
peaking frequency is 3 MHz at 1f
H
or
6 MHz at 2f
H
Line frequency selection
FUNCTION
1f
H
2f
H
Window letterbox format
FUNCTION
normal internal window format
‘Letterbox’ internal window format
Video dependent coring on/off
FUNCTION
video dependent coring off
video dependent coring on
Demonstration mode on/off
FUNCTION
DEMO off
DEMO on: auto-toggle selected features
on/off (cycle is 10 s at 1f
H
or 5 s at 2f
H
)
1
Table 8
CD2
0
1
Table 9
Chrominance delay
CD1
0
1
CD0
0
1
TDA9178
FUNCTION
40 ns at 1f
H
or 20 ns at 2f
H
−32
ns at 1f
H
or +16 ns at 2f
H
AMS
0
1
Table 2
Overrule smart peaking
FUNCTION
smart peaking (maximum peaking
reduced if Coxing)
overrule smart peaking
OSP
0
LDH
0
1
Table 10
White-point stretch on/off
WPO
FUNCTION
white-point stretch on
white-point stretch off
Table 3
CFS
0
1
0
1
Table 11
Dynamic skin tone on/off
DSK
0
1
skin tone off
skin tone on
FUNCTION
Table 4
FHS
0
1
Table 5
Table 12
Dynamic skin tone angle
ASK
0
1
FUNCTION
angle correction 123°
angle correction 117°
WLB
0
1
Table 6
Table 13
Dynamic skin tone width
WSK
0
1
FUNCTION
default detection angle
60% increased detection angle
VDC
0
1
Table 7
Table 14
Dynamic skin tone size
SSK
0
1
default area
40% increased area
FUNCTION
DEM
0
1
Table 15
Green enhancement on/off
DGR
0
1
FUNCTION
green enhancement off
green enhancement on
1999 Sep 24
12
PHILIPS [ NXP SEMICONDUCTORS ]
