Ultrasonic imaging system for simultaneous display of sector-scanned multiple images.

摘要

@ In an ultrasonic imaging system echo signals representative of the amplitude of ultrasonic energy returning along a plurality of angularly spaced paths are sampled at a constant speed by an AID converter (31) and stored into a buffer memory (33). At a speed inversely proportional to the cosine of the angle of said path with respect to a reference line (L) the echo samples are read out of the buffer memory and written into a specified area of a graphic memory (38) at a constant speed in the direction of the rows thereof and at a speed proportional to the tangent of the angle of the path with respect to the reference line in the direction of the columns thereof. At a constant speed echo samples are read out of the graphic memory in the directions of the rows and columns and applied to a monitor (40) to be displayed in a raster scan field.