A reduced-size look-up-table for ADC sample-times of a single-chip non-uniform-sampling digital-beamformer for ultrasound medical imaging

The size of the look-up-table to store the ADC sample-times was reduced by around 200 times to implement a single-chip non-uniform-sampling 32-channel digital-beamformer for ultrasound medical imaging. It was achieved by storing the 2nd derivatives of sample-times w.r.t. focal point numbers on a sca...

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Bibliographic Details
Published in2015 International SoC Design Conference (ISOCC) pp. 103 - 104
Main Authors Seong-Eun Cho, Ji-Yong Um, Yoon-Jee Kim, Min-Kyun Chae, Byungsub Kim, Jae-Yoon Sim, Hong-June Park
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2015
Subjects
digital-beamformer
look-up-table
non-uniform-sampling
ultrasound
variable gain amplifier
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Summary:The size of the look-up-table to store the ADC sample-times was reduced by around 200 times to implement a single-chip non-uniform-sampling 32-channel digital-beamformer for ultrasound medical imaging. It was achieved by storing the 2nd derivatives of sample-times w.r.t. focal point numbers on a scanline. The proposed digital-beamformer includes the LUT, sample clock generators for ADCs, LNAs, VGAs, ADCs, and DBF in a single-chip. A 15-dot image was successfully reconstructed by the proposed chip with simulation.
DOI:10.1109/ISOCC.2015.7401673