SYSTEM AND METHOD FOR MEASURING IN-BAND CROSS-TALK IN OPTICAL COMMUNICATION SYSTEMS
    1.
    发明申请
    SYSTEM AND METHOD FOR MEASURING IN-BAND CROSS-TALK IN OPTICAL COMMUNICATION SYSTEMS 审中-公开
    用于在光通信系统中测量带内交叉的系统和方法

    公开(公告)号:WO0152451A9

    公开(公告)日:2002-07-18

    申请号:PCT/US0100878

    申请日:2001-01-12

    CPC classification number: H04B10/0795 H04B10/07953 H04B10/85

    Abstract: A method of and system for estimating the bit error rate of a channel in an optical communication system includes a method of and system for measuring the in-band cross-talk of the channel in a wavelength division multiplexed system. A single channel is selected from the plurality of channels in the optical communication system. The signal in this single channel is passed to a digital signal processor proportional to the time rate of change of a phase of an optical source generating the signal. The digital signal processor converts the filtered signal into the frequency domain, and a spectrum analyzer determines the features of the in-band cross-talk from the signal in the frequency domain. The features of the in-band cross-talk may be combined with other measured noise features, such as the power spectral density, to estimate BER.

    Abstract translation: 用于估计光通信系统中的信道的误码率的方法和系统包括用于测量波分复用系统中信道的带内串扰的方法和系统。 从光通信系统中的多个信道中选择单个信道。 该单通道中的信号被传递到与产生信号的光源的相位的时间变化率成比例的数字信号处理器。 数字信号处理器将滤波后的信号转换成频域,频谱分析仪根据频域信号确定带内串扰的特征。 带内串扰的特征可以与其他测量的噪声特征(例如功率谱密度)组合以估计BER。

    SYSTEM AND METHOD FOR MEASURING IN-BAND CROSS-TALK IN OPTICAL COMMUNICATION SYSTEMS
    2.
    发明申请
    SYSTEM AND METHOD FOR MEASURING IN-BAND CROSS-TALK IN OPTICAL COMMUNICATION SYSTEMS 审中-公开
    用于在光通信系统中测量带内交叉的系统和方法

    公开(公告)号:WO0152451A2

    公开(公告)日:2001-07-19

    申请号:PCT/US0100878

    申请日:2001-01-12

    CPC classification number: H04B10/0795 H04B10/07953 H04B10/85

    Abstract: A method of and system for estimating the bit error rate of a channel in an optical communication system includes a method of and system for measuring the in-band cross-talk of the channel in a wavelength division multiplexed system. A single channel is selected from the plurality of channels in the optical communication system. The signal in this single channel is passed to a digital signal processor proportional to the time rate of change of a phase of an optical source generating the signal. The digital signal processor converts the filtered signal into the frequency domain, and a spectrum analyzer determines the features of the in-band cross-talk from the signal in the frequency domain. The features of the in-band cross-talk may be combined with other measured noise features, such as the power spectral density, to estimate BER.

    Abstract translation: 用于估计光通信系统中的信道的误码率的方法和系统包括用于测量波分复用系统中信道的带内串扰的方法和系统。 从光通信系统中的多个信道中选择单个信道。 该单通道中的信号被传递到与产生信号的光源的相位的时间变化率成比例的数字信号处理器。 数字信号处理器将滤波后的信号转换成频域,频谱分析仪根据频域信号确定带内串扰的特征。 带内串扰的特征可以与其他测量的噪声特征(例如功率谱密度)组合以估计BER。

    TOUCH SCREEN SYSTEMS WITH INTERFACE LAYER
    3.
    发明申请
    TOUCH SCREEN SYSTEMS WITH INTERFACE LAYER 审中-公开
    触摸屏系统与界面层

    公开(公告)号:WO2014055806A1

    公开(公告)日:2014-04-10

    申请号:PCT/US2013/063346

    申请日:2013-10-04

    CPC classification number: G02F1/13338 G06F3/042 G06F2203/04109

    Abstract: A touch system for sensing a touch event that includes a transparent sheet having opposite upper and lower surfaces and an index of refraction n 2 . The system also has at least one light source that emits light. The light source is operably arranged in optical communication with the transparent sheet to cause the light to travel within the transparent sheet by total-internal reflection (TIR). At least one detector is operably arranged to detect the TIR-traveling light and to detect an amount of attenuation in the TIR-traveling light caused by the touch event. An interface layer is disposed on the lower surface of the transparent sheet. The interface layer has a refractive index n 1 , wherein n 1 2 , and has a thickness of equal to or greater than 1 micron. The interface layer obviates the need for an air gap when interfacing the touch system to a display unit of display device.

    Abstract translation: 一种用于感测触摸事件的触摸系统,其包括具有相反的上表面和下表面的透明片材以及折射率n2。 该系统还具有至少一个发光的光源。 光源可操作地布置成与透明片材光学连通,以通过全内反射(TIR)使光在透明片材内移动。 至少一个检测器可操作地布置成检测TIR行进光并检测由触摸事件引起的TIR行进光中的衰减量。 界面层设置在透明片的下表面上。 界面层具有折射率n1,其中n1

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