Method and device for clock recovery
    101.
    发明授权
    Method and device for clock recovery 有权
    时钟恢复的方法和设备

    公开(公告)号:US08964924B2

    公开(公告)日:2015-02-24

    申请号:US13825877

    申请日:2010-09-24

    CPC classification number: H03L7/0807 H04L7/0029 H04L7/005

    Abstract: A method and a device for processing a signal determine a timing phase over an observation interval of an input signal. A frequency estimation is determined based on the timing phase. A phase correction is determined for the observation interval based on the timing phase and the frequency offset. Then the phase correction is used to adjust the timing of the input signal. Also, a communication system with at least one such device is described.

    Abstract translation: 用于处理信号的方法和装置确定在输入信号的观察间隔上的定时相位。 基于定时相位来确定频率估计。 基于定时相位和频率偏移确定观测间隔的相位校正。 然后使用相位校正来调整输入信号的定时。 此外,描述了具有至少一个这样的设备的通信系统。

    Method for transmitting data, and network element for a data network
    103.
    发明授权
    Method for transmitting data, and network element for a data network 有权
    传输数据的方法和数据网络的网元

    公开(公告)号:US08868771B2

    公开(公告)日:2014-10-21

    申请号:US12063558

    申请日:2006-08-03

    Abstract: The invention relates to a method for transmitting data in a data network using virtual containers, which are combined to form a virtual concatenated group by means of the Link Capacity Adjustment Scheme, LCAS. The virtual concatenated group is sub-divided on the send side into a first virtual concatenated group and a second virtual concatenated group. Data of a first type is inserted on the send side into the first virtual concatenated group and data of the second type is inserted into the second virtual concatenated group. Said data is then transmitted via the data network.

    Abstract translation: 本发明涉及一种使用虚拟容器在数据网络中传输数据的方法,其通过链路容量调整方案LCAS组合形成虚拟级联组。 虚拟级联组在发送侧被划分为第一虚连接组和第二虚连接组。 将第一类型的数据插入到发送侧到第一虚拟级联组,并且将第二类型的数据插入到第二虚拟级联组中。 然后通过数据网络传输所述数据。

    Method and arrangement for adaptive dispersion compensation
    104.
    发明授权
    Method and arrangement for adaptive dispersion compensation 有权
    自适应色散补偿的方法和布置

    公开(公告)号:US08725007B2

    公开(公告)日:2014-05-13

    申请号:US13202665

    申请日:2009-02-20

    CPC classification number: H04B10/6166 H04B10/2513 H04B10/6971 H04J14/06

    Abstract: A received optical signal is coherently demodulated and converted into electrical complex samples, which are dispersion compensated in a compensation filter. A control circuit calculates comparison values from corrected samples and an estimated error value. A plurality of compensation functions is applied according to a predetermined dispersion range and after a second iteration, the compensation filter is set to an optimum compensation function.

    Abstract translation: 接收的光信号被相干解调并转换成电复杂样本,其在补偿滤波器中进行色散补偿。 控制电路计算来自校正样本的比较值和估计误差值。 根据预定的色散范围应用多个补偿功能,并且在第二次迭代之后,将补偿滤波器设置为最佳补偿功能。

    Subcarrier multiplex system
    105.
    发明授权
    Subcarrier multiplex system 有权
    副载波复用系统

    公开(公告)号:US08676056B2

    公开(公告)日:2014-03-18

    申请号:US13000158

    申请日:2008-06-20

    Applicant: Erich Gottwald

    Inventor: Erich Gottwald

    Abstract: A subcarrier system generates a phase comparison signal in a transmitter and transmits the phase comparison signal together with an optical subcarrier multiplex signal in the same transmission channel of an optical network. A receiver measures a phase distortion between a phase reference signal and the received phase comparison signal for each modulation section of the received subcarrier symbols, calculating at least one correction value and correcting time jitters or phase impairments of all parallel received or regained subcarrier symbols as a function of the phase distortion of the received phase comparison signal. Time jitter/phase jitter can be compensated without high hardware expenses.

    Abstract translation: 副载波系统在发射机中产生相位比较信号,并将相位比较信号与光网络的相同传输信道中的光副载波复用信号一起发送。 接收机测量接收到的副载波符号的每个调制部分的相位参考信号和接收相位比较信号之间的相位失真,计算至少一个校正值并将所有并行接收或重新获得的子载波符号的时间抖动或相位损伤校正为 接收相位比较信号的相位失真的功能。 时间抖动/相位抖动可以在没有高硬件费用的情况下进行补偿。

Patent Agency Ranking