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IMAGE PROCESSING
6.7 IMAGE PROCESSING
6.7.1 OVERVIEW
SBU
CCD
Analog Data (R)
R
Analog Data (G)
G
Analog Data (B)
B
B/W
CCD CLK
Driver IC
• The CCD generates three analog video signals.
• The AFE (Analog Front End processor) on the SBU (Sensor Board Unit) converts
these analog signals to 10-bit digital signals.
• It sends these digital signals to the MCB (Main Control Board) board through the
LVDS (Low Voltage Differential Signaling).
• The CPU on the MCB processes the image, and then the image data is sent to
the network or to a local printer through the NIB or the SCSI-2 controller.
Analog Front End
A/D
Digital Data
Converter
A/D
Digital Data
Multiplexer
Converter
A/D
Digital Data
Converter
Controller
Main Control Board
LVDS
DATA/HSYNC
DATA 10bit
LVDS
LAN
6-10
3 December 2004
SDRAM 256MB x 4
CPU
Main Control
CPU
DMA
Image
Processing
Interface
Hi-speed USB
Network
USB
Board
G422D900.WMF
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