公开(公告)号：US06471651B1

公开(公告)日：2002-10-29

申请号：US09564299

申请日：2000-05-03

申请人： Juin-Jet Hwang ,  Justin M. Coughlin ,  Davin Dhatt ,  Geoffrey Jones ,  Blake W. Little

发明人： Juin-Jet Hwang ,  Justin M. Coughlin ,  Davin Dhatt ,  Geoffrey Jones ,  Blake W. Little

IPC分类号： A61B800

CPC分类号： G01S7/52017 ,  A61B8/00 ,  A61B8/06 ,  A61B8/13 ,  A61B8/4427 ,  G01S7/52096

摘要： A portable ultrasonic diagnostic instrument including an array transducer, a beamformer, signal processing and imaging circuitry, and a display for the processed echo signals operates on no more than 25 watts of electrical power. Circuit functions can be selecting attend depending on mode of operation of the instrument to thereby reduce power consumption. Further, a power monitor and control can monitor electrical current from a battery power source, and when power consumption reaches a pre-determined level the power monitor and control further alters one or more functional units in the instrument including display mode of operation, clock frequency for analog to digital conversion and signal processing, color signal processing, and 3D signal processing. Power consumption can be monitored against two or more pre-determined levels wherein instrument functional units or mode of operation are altered depending on which level of power consumption has been reached. In an instrument with an analog beamformer power consumption can be limited to 10 watts, whereas in a digital beamformer instrument power consumption can be limited to no more than 25 watts.

摘要翻译： 包括阵列换能器，波束形成器，信号处理和成像电路的便携式超声波诊断仪器以及用于经处理的回波信号的显示器在不超过25瓦特的功率下工作。 电路功能可以根据仪器的工作模式进行选择，从而降低功耗。 此外，功率监视和控制可以监测来自电池电源的电流，并且当功率消耗达到预定水平时，功率监视和控制进一步改变仪器中的一个或多个功能单元，包括显示操作模式，时钟频率 用于模数转换和信号处理，彩色信号处理和3D信号处理。 可以根据两个或更多个预定水平来监测功率消耗，其中根据已经达到的功率消耗水平来改变仪表功能单元或操作模式。 在具有模拟波束形成器功能的仪器中，功耗可以限制在10瓦特，而在数字波束成形器中，功耗可以限制在不超过25瓦特。