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    • 8. 发明授权
    • Low-noise optical current source
    • 低噪声光电流源
    • US08586912B1
    • 2013-11-19
    • US13283041
    • 2011-10-27
    • Timothy John PalmerPaul Nicholas Winter
    • Timothy John PalmerPaul Nicholas Winter
    • G01D18/00A61B5/00
    • A61B5/14542A61B2560/0233
    • Systems, methods for manufacturing, and devices for producing an output current that simulates a current generated by an optical patient sensor are provided. An optical patient sensor includes a sensor light source having a first characteristic profile and a sensor photodetector having a second characteristic profile. The current source includes a light source having a characteristic profile similar to the first characteristic profile and indicative of interchangeability between the light source and the sensor light source, and a first photodetector configured to produce an output current in response to receiving light from the light source, the first photodetector having a characteristic profile similar to the second characteristic profile and indicative of interchangeability between the sensor photodetector and the first photodetector.
    • 提供了系统,制造方法和用于产生模拟由光学患者传感器产生的电流的输出电流的装置。 光学患者传感器包括具有第一特征轮廓的传感器光源和具有第二特性轮廓的传感器光电检测器。 电流源包括具有与第一特性曲线相似的特性曲线并且指示光源和传感器光源之间的互换性的光源,以及被配置为响应于从光源接收光而产生输出电流的第一光电检测器 所述第一光电检测器具有类似于所述第二特性曲线的特性曲线并且指示所述传感器光电检测器和所述第一光电检测器之间的互换性。