Dynamic array aperture and focus control for ultrasonic...

Details Dynamic array aperture and focus control for ultrasonic... Dynamic array aperture and focus control for ultrasonic...

A - Human Necessities

61

B

349/36

A61B 10/00 (2006.01) G01S 15/89 (2006.01)

Patent

CA 1134491

RD-9882 DYNAMIC ARRAY APERTURE AND FOCUS CONTROL FOR ULTRASONIC IMAGING SYSTEMS Abstract of the Disclosure A B-scan ultrasonic imager such as a single-sector scanner has a dynamic aperture and focus control to attain improved lateral resolution especially at ranges less than the maximum array aperture. As the range from which echoes are being received propagates out, the array aperture during each echo reception period is increased by steps by switching in more elements of the total transducer array. At least one adjustment of receiving channel time delays is made to dynamically focus the echoes at different focal points.

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