GE M
EDICAL
S
YSTEMS
D
IRECTION
FC091194, R
EVISION
02
V
IVID
7 / V
IVID
7 PRO S
ERVICE
M
ANUAL
Chapter 5 - Components and Functions (Theory)
5 - 13
5-3-8
Mid Processors
This Mid Processors performs the signal conditioning for Tissue and Doppler.
Color Flow processing is done by the Backend Processor.
The Radio Frequency & Tissue (RFT) board, the Spectral Doppler (SDP) board and the Image Port
(IMP2) board are located in the Front End Processor Card Rack.
•
The RFT board receives digitized ultrasound signals from the Front End and performs the RF
filtering and tissue processing. The result is sent via the Pipelink bus to SDP.
•
The SDP board receives digitized Doppler data via the Pipelink bus, performs the pulsed and
continuos Doppler processing and produces Doppler Audio. The processed Doppler result is sent
via the Pipelink bus to IMP2. The Doppler Audio is routed via the Motherboard to the Internal I/O.
•
The main functions of the Image Port (IMP2) board:
-
Capture data from the RFT or the VCR (in playback), store it into its internal memory and then
route it to the BEP via the PC2IP bus.
-
Pick Color Flow data from the Pipelink bus and send it to the BEP via the PC2IP bus.
-
Main Communication between BEP and the cards in the Card Rack (via the PC2IP Bus).
Figure 5-4 The Mid Processors
RFT - Radio
Frequency &
Tissue
SDP -
Spectral
Doppler
IMP2 -
Image Port
Motherboard connector
to Internal I/O module
VME-bus
Doppler A
udio
S
-V
ideo
/C
V
ideo
replay (
from
V
CR)
To/From
FEC2 (Front
End)
Digitized received
ultrasound signals
from Front End
To Backend
Processor
PC2IP bus
(Digital Video Data)
Pipelink bus
Pipelink bus
Содержание FC091194
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