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2. KB & KBIF
Interfaces each key and switch on the control panel with the PC unit.
Also controls turning on LED.
3. PRBSW
A section to interface with the probe, which corresponds to the transmitter/receiver
of ultrasound scanner.
PRBSW gives high voltage pulse to the transducer for driving it, as well as amplifies
echo returned from body tissue.
Also, PRBSW is composed of the following two boards:
(1)
PRB PCB
(2)
AWP PCB
4. DBF
Outputs transmit signals delayed for each channel to PRBSW PCB, beam-formes the
received wave signals and sums for channels, and outputs it to EPI PCB.
5. EPI
Processes each beam-formed signal of B, M, D and CFM mode from DBF, and outputs
to MAP.
And controls ultrasound transmit/receive focusing and generates various control
signals for ultrasound scan.
6. MAP
After applying smoothing, enhancement and so on to image data from EPI PCB, it
converts them to TV synchronized signals to output them to the Video Board together
with ECG and heart sounds waveform data from BIO PCB.
7. CNPNL
Connects with external peripheral equipment.
4 - 2
L1E-EA0229
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