SIGNAL LIGHT DETECTION DEVICE AND METHOD OF DETECTING SIGNAL LIGHT
    7.
    发明申请
    SIGNAL LIGHT DETECTION DEVICE AND METHOD OF DETECTING SIGNAL LIGHT 有权
    信号光检测装置及其检测信号灯的方法

    公开(公告)号:US20110215249A1

    公开(公告)日:2011-09-08

    申请号:US12996714

    申请日:2010-06-11

    IPC分类号: G01T1/20 H03K17/78

    CPC分类号: G01T1/2985 G01T1/17

    摘要: An electric signal produced by a photo-electric conversion element(104) is input to a comparator (120). The comparator (120) judges whether the electric signal output from the amplifier (110) exceeds a reference voltage or not, and outputs a HIGH signal if “exceeds”. A reference voltage modifier unit (130) elevates the reference voltage, after a predetermined time period elapses since the comparator (120) judged that the electric signal reached or exceeded the reference voltage. The signal processor calculates an incidence time which represents a time when the signal light starts to enter the photo-electric converter unit (100), by correcting a rise-up time of the electric signal when it reaches or exceeds the reference voltage, based on a pulse width which represents a time period from when the electric signal exceeds the reference voltage, up to when the electric signal falls below the reference voltage.

    摘要翻译: 由光电转换元件(104)产生的电信号被输入到比较器(120)。 比较器(120)判断从放大器(110)输出的电信号是否超过参考电压,如果“超过”,则输出高电平信号。 在比较器(120)判定电信号达到或超过参考电压之后经过预定时间段之后,参考电压调节器单元(130)升高参考电压。 信号处理器计算出当信号光开始进入光电转换器单元(100)的时间的入射时间,通过在电信号达到或超过参考电压时校正电信号的上升时间,基于 表示从电信号超过参考电压的时间段的脉冲宽度,直到电信号低于参考电压的时间段。

    Signal light detection device and method of detecting signal light
    8.
    发明授权
    Signal light detection device and method of detecting signal light 有权
    信号光检测装置及信号光检测方法

    公开(公告)号:US08445852B2

    公开(公告)日:2013-05-21

    申请号:US12996714

    申请日:2010-06-11

    IPC分类号: G01T1/20

    CPC分类号: G01T1/2985 G01T1/17

    摘要: An electric signal produced by a photo-electric conversion element (104) is input to a comparator (120). The comparator (120) judges whether the electric signal output from the amplifier (110) exceeds a reference voltage or not, and outputs a HIGH signal if “exceeds”. A reference voltage modifier unit (130) elevates the reference voltage, after a predetermined time period elapses since the comparator (120) judged that the electric signal reached or exceeded the reference voltage. The signal processor calculates an incidence time which represents a time when the signal light starts to enter the photo-electric converter unit (100), by correcting a rise-up time of the electric signal when it reaches or exceeds the reference voltage, based on a pulse width which represents a time period from when the electric signal exceeds the reference voltage, up to when the electric signal falls below the reference voltage.

    摘要翻译: 由光电转换元件(104)产生的电信号被输入到比较器(120)。 比较器(120)判断从放大器(110)输出的电信号是否超过参考电压,如果“超过”,则输出高电平信号。 在比较器(120)判定电信号达到或超过参考电压之后经过预定时间段之后,参考电压调节器单元(130)升高参考电压。 信号处理器计算出当信号光开始进入光电转换器单元(100)的时间的入射时间,通过在电信号达到或超过参考电压时校正电信号的上升时间,基于 表示从电信号超过参考电压的时间段的脉冲宽度,直到电信号低于参考电压的时间段。