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. Author manuscript; available in PMC: 2018 Jun 4.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2017 Jan;64(1):141–149. doi: 10.1109/TUFFC.2016.2640952

Fig. 4.

Fig. 4

Depiction of actual trigger signals for 30 Hz framerate imaging in cases of trace-densities: (A) 256 US, 128 PA, (B) 256 US, 256 PA, (C) 512 US, 128 PA Differing trigger pulse-width requirements of the laser and ultrasound are correctly produced by the timing engine. Trace distribution diagrams are for illustration of relative ratio between modality A-line counts only.