Method and apparatus for controlling transducer multiplexing in

Details Method and apparatus for controlling transducer multiplexing in Method and apparatus for controlling transducer multiplexing in

1994-11-23

1996-05-28

Jaworski, Francis

Surgery

Truss

Pad

73626, A61B 800

Patent

active

055201865

ABSTRACT:
A method and apparatus for controlling multiplexing of a transducer having more elements than the imaging system has receive channels. The active aperture is shifted in increments of a predetermined number of transducer elements, e.g., eight. While the active aperture is maintained constant for a predetermined number of vectors, the phase center of the vectors in the group is shifted so that offset is minimized. In the case wherein the active aperture is successively shifted by eight elements, the offset is varied between +4 and -4 during the interval between shifts of the active aperture.

REFERENCES:
patent: 5186175 (1993-02-01), Hirama et al.
patent: 5261408 (1993-11-01), Maslak et al.
patent: 5375470 (1994-12-01), Matsushima et al.

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