Digital scanline signal processor for an ultrasonic diagnostic imaging system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 18, 2000
Grant Date -
N/A
app pub date -
Jul 11, 1997
filing date -
Jul 11, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A digital scanline signal processor which processes beamformed echo signals includes a normalization circuit, a speckle reduction processor, and a gain stage which amplifies detected echo signals. The normalization circuit applies depth dependent gain to the scanline signals to equalize the amplitudes in channels of the processor with different passband characteristics. A log compression circuit includes two compression functions for low level and high level echo signals.
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