Table of Contents
Advertisement
3 CCD (IC802)
A charge-coupled device in which charges are introduced when light from a scene is
focused on the surface of the device. The image points are accessed sequentially to
produce a television-type output signal.
PHI4
3
PHI3
4
PHI2
5
PHI1
6
PHIR 7
VDD 8
Vout 9
12 13
4 Camera Signal Processor (IC801)
Sample Hold,
AGC
From CCD
Timing
Generator
to CCD
Sample Hold
Selects a desired signal from the CCD.
Timing Genarator
Generates the clock pulse for the CCD.
8-bit AD converter
Analog signal from the CCD is converted into 8-bit digital signal of the luminance and the color
difference B-Y and R-Y signal. .
532(H)
508(H)
Image pickup
PHIS4
PHIS1
Storage
PHIS2
PHIS3
Horizontal shift
register (CCD)
14
15
D0~D7
8bit A/D
Converter
From/to CPU
— 4 —
Effective picture element:
249,936 = 508 (H) x 492 (V)
PHIS1~PHIS4:
Clock pulse for the storage.
PHI1~PHI4:
Clock pulse for the image pickup.
PHIH1~PHIH2:
Clock pulse for the horizontal shift
19
register.
18
17
PHIR:
16
CCD analog signal output.
D0~D7:
Digital signal of the luminance and the
color difference B-Y and R-Y signal.
CCD IN:
CCD analog signal input.
VI1~VI4/VS1~VS4:
Clock pulse for the CCD control signal.
Advertisement
Table of Contents
