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公开(公告)号:US20200022682A1
公开(公告)日:2020-01-23
申请号:US16361887
申请日:2019-03-22
Applicant: Hitachi, Ltd.
Inventor: Takuya KANEKO , Shinya KAJIYAMA
Abstract: An electronic circuit in an ultrasonic probe includes a plurality of sub beamformers and a control unit. Each sub beamformer includes M delay circuits and an adding circuit. Each delay circuit includes a memory cell array which is formed of N memory cells. Conditions of cyclic operations of the M memory cell arrays (for example, timings of start triggers) are made irregular, such that use starting stage numbers in the M memory cell arrays are different.