Setting the slice level in a binary signal
    1.
    发明授权
    Setting the slice level in a binary signal 失效
    在二进制信号中设置限幅电平

    公开(公告)号:US07711071B2

    公开(公告)日:2010-05-04

    申请号:US10522470

    申请日:2003-06-27

    IPC分类号: H04L25/06

    摘要: A method of setting the slice level (SL) in a binary signal (T) comprises measuring the noise level at both signal levels (A,B) and adjusting (Z) the slice levels in dependence upon the measured noise levels. By weighing the noise levels, asymmetric noise is taken into account. A device (10) for setting the slice level comprises level shift means and noise peak level detection means.

    摘要翻译: 设置二进制信号(T)中的限幅电平(SL)的方法包括测量两个信号电平(A,B)处的噪声电平,并根据所测量的噪声电平调整(Z)限幅电平。 通过称重噪声水平,考虑到不对称噪声。 用于设置限幅电平的装置(10)包括电平移位装置和噪声峰值电平检测装置。

    Method and device for signal amplitude detection
    2.
    发明授权
    Method and device for signal amplitude detection 有权
    用于信号幅度检测的方法和装置

    公开(公告)号:US07235985B2

    公开(公告)日:2007-06-26

    申请号:US10531400

    申请日:2003-09-22

    IPC分类号: G01R27/26

    CPC分类号: H04L25/061

    摘要: A method and a device (1) for detecting signal amplitudes by removing any DC component from the signal and then shifting the signal by a shift amount so as to produce a shifted signal having a first signal level equal to a reference level (Vref). The shift amount provides an indication of the amplitude of the signal. To this end, the device (1) includes a decoupling circuit (2), a shift circuit (3) and an output terminal (4). Optionally the device further includes a differential amplifier (5) coupled to receive the reference level (Vref) and an indication of the power of the shifted signal, and a signal power determination circuit (6) coupled between the shift circuit (3) and the differential amplifier (5).

    摘要翻译: 一种用于通过从信号中去除任何DC分量然后将信号移位移位量以便产生具有等于参考电平(Vref)的第一信号电平的移位信号来检测信号幅度的方法和装置(1)。 移位量提供信号幅度的指示。 为此,设备(1)包括去耦电路(2),移位电路(3)和输出端子(4)。 可选地,所述装置还包括耦合以接收参考电平(Vref)的差分放大器(5)和所述移位信号的功率的指示,以及信号功率确定电路(6),耦合在所述移位电路(3)和所述移位电路 差分放大器(5)。

    Ring oscillator and means for controlling the frequency thereof
    3.
    发明授权
    Ring oscillator and means for controlling the frequency thereof 有权
    环形振荡器和用于控制其频率的装置

    公开(公告)号:US06661300B2

    公开(公告)日:2003-12-09

    申请号:US10118872

    申请日:2002-04-09

    IPC分类号: H03B2700

    摘要: A ring oscillator according to the invention comprises a closed chain of at least two modules (1, 2). At least one of the modules (1, 2) comprises a primary (10) and a second amplifier stage (11) and combination means (12) for combining output signals of the primary (10) the secondary amplifier stage (11) so as to generate an output signal of the module. The amplifier stages (10, 11) have a mutually different delay and the primary (10) and the secondary am amplifier stage (11) are each coupled to an input (13) of the module (1). The ring oscillator further comprises a control unit (4) for generating a first (C1) and a second auxiliary control signal (C2) for controlling the amplification of the primary amplifier stage (10) and the secondary amplifier stage (11) in response to an input control signal (Co) representative for a desired frequency for the ring oscillator. The ring oscillator according to the invention is in particular suitable for application in a data and clock recovery unit (DCR), for example in a receiver for a transmission channel and a device fair reproducing an information carrier.

    摘要翻译: 根据本发明的环形振荡器包括至少两个模块(1,2)的闭合链。 模块(1,2)中的至少一个包括初级(10)和第二放大级(11)和用于组合次级放大器级(11)的初级(10)的输出信号的组合装置(12),以便 以产生模块的输出信号。 放大器级(10,11)具有相互不同的延迟,并且主(10)和辅助放大器级放大器级(11)各自耦合到模块(1)的输入端(13)。 环形振荡器还包括一个控制单元(4),用于产生一个第一辅助控制信号(C2)和一个第二辅助控制信号(C2),用于响应于第一和第二辅助控制信号(C2)控制主放大器级(10)和辅助放大器级 代表环形振荡器的期望频率的输入控制信号(Co)。 根据本发明的环形振荡器特别适用于数据和时钟恢复单元(DCR),例如用于传输信道的接收机和公平地再现信息载体的设备。