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No. 2D730-148E*O
l
Hole filtering
Cd)
SIP
Processing for the filter and blanking, which remove clutter and noise, are
pet-formed.
l
Persistence
Frame correlation processing is performed for the color Doppler data.
l
Clutter processor
Analysis is performed for the removal of clutter components
by FIO
This consists of one DSP, one FPGA, and a buffer memory.
SIP operates in trace
image display modes (PWD, CWD, M, and MCDI) and at the time of waveform
(such
as ECG) display. In PWD and CWD modes, the following processing operations are
performed.
l
Spectrum generation
(FFT)
Signal analysis is performed
by the FFT and a spectrum is generated.
l
Audio left/right signal generation
Separate left and right Doppler signals are generated.
l
Display column generation
The space to be used for spectrum display is generated.
l
Derived parameter calculations
Real-time calculation such as auto-trace are performed.
In the M and MCDI modes and at the time of waveform
display, the following
processing operations are performed.
l
Display column generation
The space to be used for waveform display (such as M, MCDI, and ECG) is
generated.
l
Tissue/flow decision (only for MCDI mode)
Whether the pixels displayed in MCDI mode represent tissue or blood flow is
determined.
4-26
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