发明名称 Medical ultrasonic imaging system with three-state ultrasonic pulse and improved pulse generator
摘要 A three-state, pulse width modulated, bipolar waveform is constructed by summing a first component with an inverted, time-shifted version of the first component. By properly selecting the time interval for the time shift of the second component, frequency filtering benefits can be obtained. The three-state waveform is generated by a switched voltage source that provides a low, constant source impedance for all three voltage states.
申请公布号 US6432055(B1) 申请公布日期 2002.08.13
申请号 US20000607806 申请日期 2000.06.30
申请人 ACUSON CORPORATION 发明人 CARP STUART L.;SHIFRIN LAZAR;MASLAK SAMUEL H.
分类号 A61B8/00;G01S7/52;G01S7/524;G01S15/10;G01S15/89;(IPC1-7):A61B8/00 主分类号 A61B8/00
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