| 摘要 |
PROBLEM TO BE SOLVED: To display an ultrasonic image easily visible even when an acoustic frame rate in enhanced, and reduce cost. SOLUTION: An acoustic frame memory controller 102 of a DSC part repeats control for renewing an acoustic frame by selecting a separate acoustic frame memory being not in the middle of readout after completing write-in to an acoustic frame memory 5-3 by writing data of the acoustic frame one by one in order in acoustic frame memories 5-1, 5-2, 5-3 in the timing adjusted to a acoustic frame rate and repeats control for reading out the newest acousting frame in the timing adjusted to a display video frame rate among acoustic frames completed in write-in or renewal to the acoustic frame memory.
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