| abstract |
A medical diagnostic ultrasound receive beamformer includes an upsampler upstream of a time delay device and a summer, and a smoothing filter downstream of the time delay device and the summer. The receive beamformer is automatically programmed into a gate array as a single-beam, dynamic-focus receive beamformer when the user selects B-mode and as a dual-beam, fixed-focus receive beamformer when the user selects color flow mode. |