Digital ultrasound beamformer

Details Digital ultrasound beamformer Digital ultrasound beamformer

1997-12-31

1999-05-18

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Distance or direction finding

With beam steering, scanning, or focussing

367103, 600447, 73626, G01S7/52

Patent

active

059056924

ABSTRACT:
An array transducer ultrasound beamformer includes a plurality of processing channels, one for each active element of the transducer array. Each channel includes a digitizing unit for converting the received signal to digital samples and a time multiplexed delay unit for producing a primary stream of delayed TDM samples corresponding to one or more beams. Within each channel, the primary stream of delayed TDM samples is demultiplexed in order to separate the stream in a plurality of secondary streams of delayed TDM samples, wherein each of the secondary streams corresponds to a portion of a beam or a single beam.

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