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    Optical receiver
    11.
    发明授权
    Optical receiver 有权
    光接收机

    公开(公告)号：US07903984B2

    公开(公告)日：2011-03-08

    申请号：US12031841

    申请日：2008-02-15

    Applicant: Katsuhiko Hakomori ,  Masakazu Horishita

    Inventor： Katsuhiko Hakomori ,  Masakazu Horishita

    IPC: H04B10/00

    CPC classification number: H04B10/69 ,  H01L31/08

    Abstract: An optical receiver comprising: a photoelectric converting unit converting an input optical signal into an converted electrical signal; a splitting unit splitting the converted electrical signal into a plurality of split electrical signals; an amplifier amplifying one of the plurality of the split electrical signals with a first input time constant and thereby outputting an output signal; a detection circuit detecting an interruption of the input optical signal with a second input time constant on the basis of one of the plurality of the split electrical signals other than the one of the plurality of the split electrical signals input to the amplifier and thereby outputting a detection signal; and a delay circuit configured to delay the detection signal; wherein, the second input time constant of the detection circuit is smaller than the first input time constant of the amplifier.

    Abstract translation: 一种光接收机，包括：光电转换单元，将输入光信号转换成转换的电信号; 分离单元，将转换的电信号分解为多个分离的电信号; 放大器，以第一输入时间常数放大多个分割电信号中的一个，从而输出输出信号; 基于除了输入到放大器的多个分割电信号中的一个以外的多个分离电信号中的一个分离电信号中的第二输入时间常数来检测输入光信号的中断的检测电路，从而输出 检测信号; 以及延迟电路，被配置为延迟所述检测信号; 其中，检测电路的第二输入时间常数小于放大器的第一输入时间常数。

    LINE FAULT DETECTION CIRCUIT
    12.
    发明申请
    LINE FAULT DETECTION CIRCUIT 审中-公开
    线路故障检测电路

    公开(公告)号：US20080074153A1

    公开(公告)日：2008-03-27

    申请号：US11858258

    申请日：2007-09-20

    Applicant: Katsuhiko Hakomori

    Inventor： Katsuhiko Hakomori

    IPC: H03K5/1532

    CPC classification number: G01R31/021 ,  H03K5/1532 ,  H03K5/24

    Abstract: A line trouble detecting circuit comprises a peak detecting circuit, a first comparison circuit, a bottom detecting circuit, a bottom detecting circuit, a second comparison circuit, and a signal keeping circuit.The peak detecting circuit detects a peak voltage of amplitude of the one of the differential signal. The first comparison circuit compares an output of the peak detector and a first reference voltage. The bottom detecting circuit detects bottom voltage of the amplitude of the one of the differential signal. The second comparison circuit compares an output of the bottom detecting circuit and a second reference voltage. The signal keeping circuit keeps a signal from the first comparison circuit or the second comparison circuit.

    Abstract translation: 线路故障检测电路包括峰值检测电路，第一比较电路，底部检测电路，底部检测电路，第二比较电路和信号保持电路。 峰值检测电路检测差分信号之一的振幅的峰值电压。 第一比较电路比较峰值检测器的输出和第一参考电压。 底部检测电路检测差分信号之一的振幅的底部电压。 第二比较电路比较底部检测电路的输出和第二参考电压。 信号保持电路保持来自第一比较电路或第二比较电路的信号。

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