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TDA9178

YUV one chip picture improvement based on luminance vector-, colour vector- and spectral processor

Philips Electronics 

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12 13

6

YIN

UIN

8

VIN

9

Y

INPUT

STAGE

U, V

15

DECDIG

VCC

VEE

20

18 SUPPLY

1

SC

WINDOW

GENERATION

10

TP

CALIBRATE

7

ADR

14

SDA

11

SCL

luminance vector processing

LUMINANCE

PROCESSING

black stretch

histogram processing

gamma control

colour vector

processing

SATURATION

CORRECTION

spectral processing

SMART PEAKING

LUMINANCE TRANSIENT

IMPROVEMENT

+

VIDEO DEPENDENT

CORING

COLOUR DEPENDENT

SHARPNESS

DELAY

CONTROL

COLOUR TRANSIENT

IMPROVEMENT

21

SOUT

19

OUTPUT 17

STAGE 16

YOUT

UOUT

VOUT

skin tone correction

green enhancement

blue stretch

COLOUR

PROCESSING

NOISE

MEASURING

FEATURE

MODE

DETECTION

cue flash

I2C-BUS CONTROL

Fig.1 Block diagram.

ANALOG

TO

DIGITAL

CONVERTER

24

n.c.

23

n.c.

22

CF

2

n.c.

3

ADEXT1

4

ADEXT2

5

ADEXT3

MGR897

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