Patent ID: 8137272
Filing Date: 2012-03-20
Classification: G01S

Abstract:
1. An ultrasonic diagnostic imaging system which produces synthetic transmit focusing of a plurality of received lines received for a common line position comprising: a probe including an array of transducer elements; a transmit beamformer, coupled to the array of transducer elements, and operable to transmit a beam from a plurality of transmit beam locations, each beam exhibiting a focal region and encompassing a plurality of laterally spaced line positions; a multiline receive beamformer, coupled to the array of transducer elements, which is operable to produce a plurality of receive lines at a plurality of corresponding line positions in response to one transmit beam at each of different beam locations; a multiline combining circuit, responsive to the plurality of receive lines, each of which relates to a common line position produced by the multiline receive beamformer in response to the plurality of transmit beams, and including a plurality of delays which equalize the phase shift variance among the receive lines from different transmit beams at each of the common line positions, the combining circuit being operable to combine the plurality of receive lines at the common line position to produce image data; and a display which produces an image utilizing the image data.