Television – Responsive to nonvisible energy – Sonic or ultrasonic
Patent
1993-05-07
1995-03-07
Britton, Howard W.
Television
Responsive to nonvisible energy
Sonic or ultrasonic
73602, 12866004, H04N 718
Patent
active
053962850
ABSTRACT:
Methods and apparatus for enhancing the clarity of and the diagnostic information in real-time B-mode and M-mode ultrasound displays including a beamformer for acquiring ultrasound receive signals for each ultrasound scan line of a two-dimensional image and processing the receive signals for each ultrasound scan line into detected and filtered video signals for storage in scan line acquisition memory with programmable dynamically variable non-linear filters for processing the video signals with continuously and automatically varying filter responses over a range of low and high pass responses followed by scan converting and display of the non-linearly processed video signals. The non-linear filters may process video signals in range along each ultrasound scan line or azimuthally along multiple ultrasound scan lines of a two-dimensional B-mode image. The non-linear filters also can be two-dimensionally programmable for processing video signals both in range along each ultrasound scan line and azimuthally along multiple ultrasound scan lines over regions of a two-dimensional B-mode image. The non-linear filter may be responsive to a local signal measurement and to spatial positions in a B-mode image for control of filter parameters. The non-linear filter can also be programmable to accommodate variable system characteristics for particular imaging applications.
REFERENCES:
patent: 4212072 (1980-07-01), Huelsman et al.
patent: 4581636 (1986-04-01), Blaker et al.
patent: 4751846 (1988-06-01), Dousse
patent: 4783839 (1988-11-01), Bamber
Arenson James W.
Carp Stuart
Guracar Ismayil M.
Hedberg Dave
Maslak Samuel H.
Acuson Corporation
Britton Howard W.
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