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    Sensing apparatus and method
    1.
    发明授权
    Sensing apparatus and method 有权
    检测装置及方法

    公开(公告)号：US08224621B2

    公开(公告)日：2012-07-17

    申请号：US10556482

    申请日：2004-05-14

    申请人： Kemal Ajay ,  Arjun Vinoo Caprihan ,  Michael Rezny

    发明人： Kemal Ajay ,  Arjun Vinoo Caprihan ,  Michael Rezny

    IPC分类号： G06F3/02 ,  G06F3/03 ,  G01G3/15 ,  H04B13/02

    CPC分类号： G01F1/74 ,  G01F1/66 ,  G01F1/667 ,  G01N1/2205 ,  G01N1/2273 ,  G01N1/26 ,  G01N29/024 ,  G01N2015/0046 ,  G01N2015/1486 ,  G01N2291/0217 ,  G01N2291/02408 ,  G01N2291/02836 ,  G08B17/10 ,  G08B17/113

    摘要： A method for the determination of the time of flight of a signal transmitted between a transmitter (42, 44) and a receiver (44, 42). In one form, the method involves transmitting a first signal and a second signal having a waveform modification introduced at a predetermined point in time of the duration of the second signal; receiving said first and second transmitted signals; determining a point of diversion between the first and second received signals to determine an arrival time of the introduced waveform feature modification at the receiver. In addition, the invention provides an accurate time of flight determination of ultrasonic signals in a flow sensor (24) adapted for a smoke detector system (10).

    摘要翻译： 一种用于确定在发射机（42,44）和接收机（44,42）之间传输的信号的飞行时间的方法。 在一种形式中，该方法涉及在第二信号的持续时间的预定时间点发送具有引入的波形修改的第一信号和第二信号; 接收所述第一和第二传输信号; 确定第一和第二接收信号之间的转向点，以确定引入的波形特征修改在接收机处的到达时间。 此外，本发明提供了适用于烟雾探测器系统（10）的流量传感器（24）中的超声波信号的精确飞行时间确定。

    Sensing apparatus and method
    4.
    发明申请
    Sensing apparatus and method 有权
    检测装置及方法

    公开(公告)号：US20070084286A1

    公开(公告)日：2007-04-19

    申请号：US10556482

    申请日：2004-05-14

    申请人： Kemal Ajay ,  Arjun Caprihan ,  Michael Rezny

    发明人： Kemal Ajay ,  Arjun Caprihan ,  Michael Rezny

    IPC分类号： G01H5/00

    CPC分类号： G01F1/74 ,  G01F1/66 ,  G01F1/667 ,  G01N1/2205 ,  G01N1/2273 ,  G01N1/26 ,  G01N29/024 ,  G01N2015/0046 ,  G01N2015/1486 ,  G01N2291/0217 ,  G01N2291/02408 ,  G01N2291/02836 ,  G08B17/10 ,  G08B17/113

    摘要： The present invention relates to the field of sensing apparatus (10) in detecting particles in air sampled from a number of locations. In one aspect the present invention provides for the determination of the time of flight of a signal transmitted between a transmitter (42, 44) and a receiver (44, 42), comprising: transmitting a first signal comprising at least one characteristic waveform feature; transmitting a second signal comprising at least one characteristic waveform feature and a waveform modification introduced at a predetermined point in time of the duration of the second signal; receiving said first and second transmitted signals; determining a point of diversion between corresponding characteristic waveform features of the first and second received signals comprising super positioning said first and second received signals such that said point of diversion corresponds to an arrival time of the introduced waveform feature modification at the receiver. In a preferred embodiment, the invention provides an accurate time of flight determination of ultrasonic signals in a flow sensor (24) adapted for a smoke detector system (10).

    摘要翻译： 本发明涉及检测从多个位置取样的空气中的颗粒的感测装置（10）的领域。 在一个方面，本发明提供确定在发射机（42,44）和接收机（44,42）之间传输的信号的飞行时间，包括：发送包括至少一个特征波形特征的第一信号; 发送包括在所述第二信号的持续时间的预定时间点引入的至少一个特征波形特征和波形修改的第二信号; 接收所述第一和第二传输信号; 确定第一和第二接收信号的相应特征波形特征之间的转移点，包括超定位所述第一和第二接收信号，使得所述转向点对应于在接收机处引入的波形特征修改的到达时间。 在优选实施例中，本发明提供了适于烟雾探测器系统（10）的流量传感器（24）中超声信号的精确时间确定时间。