Ultrasonic signal acquisition in the digital beamformer

Details Ultrasonic signal acquisition in the digital beamformer Ultrasonic signal acquisition in the digital beamformer

2005-08-30

2005-08-30

Tokar, Michael (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C341S155000

Reexamination Certificate

active

06937176

ABSTRACT:
A receive beamformer, and ultrasound system incorporating such a receive beamformer, is constructed to implement multi-bit analog to digital conversion in such a way that the need for gain control in the channel architecture preceding the digital conversion circuitry is obviated. Accordingly, the beamformer and any ultrasound system incorporating it may realize a rigorous level of ADC performance at desirable output rates, and a lower cost. Preferably, the invention construction realizes a level of performance by which CW Doppler may be digitized in the same manner as very wide-band pulsed-wave signals.

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“How Ultrasound System Considerations Influence Front-End Component Choice”, by E. Brunner, Analog Dialogue 36-03 (2002), pp. 1-4, no month.
“A Low Power Digital Beamformer for Handheld Ultrasound Systems”, by V.S. Gierenz et al, University of Technology RWTH, Aachen, Germany, pp. 1-4, no date.

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