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    • 10. 发明申请
    • HIERARCHICAL SWITCHING IN ULTRA-HIGH DENSITY ULTRASOUND ARRAY
    • 超高密度超声阵列中的分层开关
    • WO2007085892A2
    • 2007-08-02
    • PCT/IB2006003300
    • 2006-11-22
    • INSIGHTEC LTDVORTMAN KOBIMEDAN YOAVEZION AVNER
    • VORTMAN KOBIMEDAN YOAVEZION AVNER
    • G01S15/8927A61B8/4494G01S7/52019G01S15/8925G10K11/346
    • A focused ultrasound system comprises a transducer having a multiplicity of transducer elements, drive circuitry that generates and outputs a plurality of drive signals, each offset by a respective phase difference, and a controller for selectively coupling the drive signals to respective transducer elements, the controller including a plurality of first tier switching modules and second tier switching modules. Each first tier module receives as an input the plurality of drive signals and outputs one of the drive signals in response to a drive signal selection signal. Each second tier module is coupled to a respective grouping of transducer elements and selectively couples a respective selected drive signal output from a first tier switching module to one or more of the transducer elements in response to a transducer element selection signal.
    • 聚焦超声系统包括具有多个换能器元件的换能器,产生并输出多个驱动信号的驱动电路,每个驱动信号偏移各自的相位差;以及控制器,用于选择性地将驱动信号耦合到相应的换能器元件,控制器 包括多个第一层交换模块和第二层交换模块。 每个第一层模块响应于驱动信号选择信号接收多个驱动信号作为输入并输出其中一个驱动信号。 每个第二层模块耦合到相应的换能器组分组,并且响应于换能器元件选择信号,选择性地将从第一层切换模块输出的相应选择的驱动信号耦合到一个或多个换能器元件。