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    • 4. 发明申请
    • Methods and systems for detecting proximity of an object
    • 检测物体接近度的方法和系统
    • US20070181784A1
    • 2007-08-09
    • US11347711
    • 2006-02-03
    • Robert TwineyGanesh Gangadharan
    • Robert TwineyGanesh Gangadharan
    • G06M7/00
    • G01V8/10
    • Methods and systems for detecting a proximity of an object are provided. The method includes receiving a first beam of radiation from a first field of view directed onto a first detector and a second beam of radiation from a second field of view directed onto a second detector wherein the second beam is angularly displaced from the first beam by a predetermined amount, generating a first output signal from the first detector correlative to the energy received from the first beam and a second output signal from the second detector correlative to the energy received from the second beam, and outputting a proximity signal indicative of the proximity of an object when a differential between the first and second output signals exceeds a predetermined threshold.
    • 提供了用于检测物体接近度的方法和系统。 该方法包括从指向第一检测器的第一视野和从第二视场引导到第二检测器的第二辐射束接收第一辐射束,其中第二光束与第一光束成角度地移位 从第一检测器产生与从第一波束接收的能量相关的第一输出信号和来自第二检测器的第二输出信号与从第二波束接收的能量相关,并输出表示接近信号的接近信号 当第一和第二输出信号之间的差分超过预定阈值时,