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    Tracking data eye operating margin for steady state adaptation
    2.
    发明公开
    Tracking data eye operating margin for steady state adaptation 审中-公开
    Datenerfassungfüroperative Augenmarge zur Dauerleistungsanpassung

    公开(公告)号：EP2451129A2

    公开(公告)日：2012-05-09

    申请号：EP11150926.1

    申请日：2011-01-14

    申请人： LSI Corporation

    发明人： Mobin, Mohammad ,  Liu, Ye ,  Malipatil, Amaresh

    IPC分类号： H04L25/02

    CPC分类号： H04L25/03012 ,  H04L2025/03439

    摘要： In described embodiments, a transceiver includes an eye monitor and margin detector having one or more samplers with corresponding logic. One or more programmable provisioning parameters are defined based on a pre-defined minimum target operating margin for acceptable noise and jitter margins. For example, two programmable provisioning parameters, phase and voltage, correspond with thresholds for margin samplers placed within the eye. Initially, the transceiver applies equalization, after which an inner eye of the transceiver, as detected by the eye monitor, is relatively open with some margin for supporting channels. If the receiver margin goes below this target margin, the eye closes, which is registered by the samplers. In the presence of spectrally rich input data, if the receiver margin goes below this target margin, an updated adaptation of equalizer or other circuit parameters might be initiated; else, adaptation is not generally required.

    摘要翻译： 在所描述的实施例中，收发器包括具有一个或多个具有相应逻辑的采样器的眼睛监视器和边缘检测器。 基于可接受的噪声和抖动余量的预定义的最小目标操作裕度来定义一个或多个可编程供应参数。 例如，两个可编程供应参数（相位和电压）对应于放置在眼睛内的余量采样器的阈值。 最初，收发机应用均衡，此后，由眼睛监视器检测到的收发器的内眼相对开放，具有用于支持信道的一些余量。 如果接收机边缘低于此目标边距，则眼睛关闭，由采样器注册。 在存在频谱丰富的输入数据的情况下，如果接收机边缘低于该目标边缘，则可以启动均衡器或其他电路参数的更新的适配; 否则，一般不需要适应。

    EMPFÄNGERSTRUKTUR UND VERFAHREN ZUR DEMODULATION EINES QUADRATURMODULIERTEN SIGNALS
    3.
    发明公开
    EMPFÄNGERSTRUKTUR UND VERFAHREN ZUR DEMODULATION EINES QUADRATURMODULIERTEN SIGNALS 有权
    用于解调接收机的结构和方法现蕾调制信号

    公开(公告)号：EP2044742A1

    公开(公告)日：2009-04-08

    申请号：EP07787101.0

    申请日：2007-07-05

    申请人： Nokia Siemens Networks GmbH & Co. KG

    发明人： HAUSKE, Fabian ,  LANKL, Berthold ,  SCHMIDT, Ernst-Dieter ,  XIE, Changsong

    IPC分类号： H04L25/03

    CPC分类号： H04L27/223 ,  H04L25/03012 ,  H04L2025/03439

    摘要： The invention relates to a receiver for a quadrature-modulated signal, which can be divided into an inphase signal (I) and a quadrature signal (Q). The inphase signal (I) is fed to first and third equalizers (EZl, EZ3), and the quadrature signal (Q) is fed to second and fourth equalizers (EZ2, EZ4), wherein the first and second equalizers (EZl, EZ2) each perform a first equalization of the respective signal. An output of the first equalizer (EZl) is connected to a second input of the fourth equalizer (EZ4), which, by means of a second equalization of the quadrature signal (Q), transmits an equalized quadrature signal (Q2) as a function of the previously fed equalized inphase signal (II) of the first equalizer (EZl). An output of the second equalizer (EZ2) is connected to the second input of the third equalizer (EZ3), which, by means of a second equalization of the inphase signal (I), transmits an equalized inphase signal (12) as a function of the previously fed equalized quadrature signal (Ql) of the second equalizer (EZ2).