Wide dynamic range ultrasound echo receiver
    3.
    发明授权
    Wide dynamic range ultrasound echo receiver 失效
    宽动态范围超声波回波接收机

    公开(公告)号:US4454884A

    公开(公告)日:1984-06-19

    申请号:US423922

    申请日:1982-09-27

    申请人: Leonard D. Seader

    发明人: Leonard D. Seader

    IPC分类号: G01S7/52 A61B10/00 G01N29/00

    CPC分类号: G01S7/52033

    摘要: The wide dynamic range ultrasound receiver utilizes a multi-stage logarithmic amplifier in order to logarithmically amplify a returned echo signal. The output of the returned echo signal from the logarithmic amplifier is simply added to a saw-tooth wave Time Gain Control (TGC) signal. Thus, the wide dynamic range of the returned echo signals is simply converted into a video display.

    摘要翻译: 宽动态范围超声波接收机利用多级对数放大器对数放大返回的回波信号。 来自对数放大器的返回回波信号的输出被简单地添加到锯齿波时间增益控制(TGC)信号。 因此,返回的回波信号的宽动态范围被简单地转换为视频显示。