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1. 发明授权

US08582688B2 Method, apparatus, and system for channel estimation 有权
标题翻译：用于信道估计的方法，装置和系统
公开(公告)号：US08582688B2
公开(公告)日：2013-11-12
申请号：US12971389
申请日：2010-12-17
申请人： Liming Fang , Dong Wei , Zihuan Chen , Raphael Cendrillon
发明人： Liming Fang , Dong Wei , Zihuan Chen , Raphael Cendrillon
IPC分类号： H04L27/28
CPC分类号： H04B7/0623 , H04B3/487 , H04L5/0007 , H04L25/0204 , H04L25/022 , H04L25/0232 , H04L25/03343 , H04M11/062
摘要： In the field of communications technologies, a method, an apparatus, and a system for channel estimation are provided. The method for channel estimation includes the following steps. An error signal returned by a terminal is received, where the error signal is an error signal of at least two tones in a downlink frequency band. Channels of the at least two tones are obtained according to the error signal. The channels of the at least two tones are interpolated, and channels of remaining tones in the downlink frequency band are obtained. In the method, the apparatus, and the system for channel estimation, a convergence speed of the channel estimation is improved by reducing data of error signals returned by the terminal.
摘要翻译：在通信技术领域中，提供了一种用于信道估计的方法，装置和系统。信道估计方法包括以下步骤。接收由终端返回的误差信号，其中误差信号是下行链路频带中至少两个音调的误差信号。根据误差信号获得至少两个音调的信道。插入至少两个音调的声道，并获得下行频带中剩余音调的声道。在该方法中，通过减少由终端返回的误差信号的数据来改善信道估计的装置和信道估计系统的收敛速度。

2. 发明申请

US20130272703A1 Method and Apparatus of Delivering Upstream Data in Ethernet Passive Optical Network Over Coaxial Network 有权
标题翻译：以太网无源光网络同轴网络上传数据的方法与装置
公开(公告)号：US20130272703A1
公开(公告)日：2013-10-17
申请号：US13447748
申请日：2012-04-16
申请人： Liming Fang , Jim Chen , Kira Zhang
发明人： Liming Fang , Jim Chen , Kira Zhang
IPC分类号： H04B10/20
CPC分类号： H04B10/2575 , H04B10/27 , H04J14/08 , H04L12/00 , H04Q11/0067 , H04Q11/0071 , H04Q2011/0064 , H04Q2011/0086
摘要： An apparatus for interconnecting a fiber-optic network and a coax network comprising a coax line terminal (CLT) configured to couple to an optical line terminal (OLT) at the fiber-optic network and a plurality of coax network units (CNUs) at the coax network and to cache data received from the CNUs and forward the cached data to the OLT upon receiving a message from the OLT that assigns a transmission cycle for a specified CNU, wherein the CLT forwards the cached data to the OLT upon receiving the message regardless of whether the cached data corresponds to the specified CNU.
摘要翻译：一种用于互连光纤网络和同轴电缆网络的装置，包括被配置为耦合到光纤网络处的光线路终端（OLT）的同轴线路终端（CLT）和在该光纤网络处的多个同轴电缆网络单元（CNU）同轴网络和缓存从CNU接收的数据，并且在从OLT接收到为指定的CNU分配传输周期的消息时将缓存的数据转发到OLT，其中CLT在接收到消息时将缓存的数据转发到OLT 缓存数据是否对应于指定的CNU。

3. 发明授权

US08477929B2 Method, device and system for line management 失效
标题翻译：线路管理的方法，设备和系统
公开(公告)号：US08477929B2
公开(公告)日：2013-07-02
申请号：US12847111
申请日：2010-07-30
申请人： Liming Fang , Cheng Li
发明人： Liming Fang , Cheng Li
IPC分类号： H04M9/00
CPC分类号： H04B3/32 , H04L5/0037 , H04L5/0062 , H04L5/1423 , H04M3/34 , H04M11/062
摘要： A method for line management includes: acquiring running parameters of a subscriber line; computing a transmitting power spectral density, PSD, and reference virtual noise of the subscriber line according to the running parameters; activating the subscriber line according to the transmitting PSD and the reference virtual noise. A device and system for line management are provided correspondingly. Reference virtual noise needed by virtual noise technology is set rationally according to the information provided by dynamic spectrum management, DSM, Level 2 algorithm. The utilization of the virtual noise technology improves the line stability under the DSM Level 2 algorithm, and has an effect of optimizing the subscriber line.
摘要翻译：线路管理方法包括：获取用户线的运行参数; 根据运行参数计算用户线的发射功率谱密度，PSD和参考虚拟噪声; 根据传输PSD和参考虚拟噪声激活用户线路。相应地提供用于线路管理的设备和系统。根据动态频谱管理DSM，Level 2算法提供的信息合理设置虚拟噪声技术所需的虚拟噪声参考。虚拟噪声技术的使用提高了DSM Level 2算法下的线路稳定性，具有优化用户线的效果。

4. 发明授权

US08464843B2 Lockable caster wheels 有权
标题翻译：可锁定脚轮
公开(公告)号：US08464843B2
公开(公告)日：2013-06-18
申请号：US12864159
申请日：2009-09-22
申请人： Ying Qiu , Liming Fang , Jinyuan Xu , Jie Ma
发明人： Ying Qiu , Liming Fang , Jinyuan Xu , Jie Ma
IPC分类号： B60B33/00
CPC分类号： B60B33/021 , B60B33/0007 , B60B33/0021 , B60B33/0028 , B60B33/0039 , B60B33/0049 , B60B33/0057 , B60B33/0068 , B60B33/0073 , B60B33/0092 , B62B5/0423 , B62B5/0452 , Y10T16/1847
摘要： The invention relates a lockable caster wheel. The lockable caster wheel can be widely used in shopping carts, luggage carts, strollers, turnover carts, stretcher cars and many other trolleys. The controlling mechanism of the lockable caster wheel comprises a controller which comprises a signal receiving device and a locking device which is controlled by the controller. The locking mechanism further comprises a revolving damper which comprises a shell having a restricting structure and a damping wheel located inside the shell. The shell, through its restricting structure, separates from or connects with the locking device to form unlocked or locked states. The damping wheel connects with the wheel assembly. The caster wheel uses a damper. Beyond the allowed area of use, the trolleys can be slowly pushed for a few of meters because of the damper effect, but it will not suddenly stop completely. Therefore it will not present danger to the users. It can also prevent the casters from being damaged by a forceful push when they are locked.
摘要翻译：本发明涉及可锁定脚轮。可锁定脚轮可广泛用于购物车，行李车，婴儿推车，周转车，担架车和许多其他手推车。可锁定脚轮的控制机构包括控制器，该控制器包括由控制器控制的信号接收装置和锁定装置。锁定机构还包括一个旋转阻尼器，它包括具有限制结构的壳体和位于壳体内部的阻尼轮。壳体通过其限制结构与锁定装置分离或连接以形成解锁或锁定状态。阻尼轮与车轮组件连接。脚轮使用阻尼器。超过允许的使用范围，手推车可以缓慢推动几米，因为阻尼效应，但不会完全停止。所以不会给用户带来危险。它也可以防止脚轮在锁定时被强力推动而损坏。

5. 发明授权

US08391125B2 Method and device for managing channel matrix 有权
标题翻译：用于管理信道矩阵的方法和设备
公开(公告)号：US08391125B2
公开(公告)日：2013-03-05
申请号：US12202921
申请日：2008-09-02
申请人： Jun Zhou , Gouzhou Long , Dong Wei , Liming Fang , Zihuan Chen
发明人： Jun Zhou , Gouzhou Long , Dong Wei , Liming Fang , Zihuan Chen
IPC分类号： H04J1/12 , H04J3/10
CPC分类号： H04Q11/04 , H04Q2213/13039 , H04Q2213/13099 , H04Q2213/13173 , H04Q2213/1319 , H04Q2213/13209 , H04Q2213/13335 , H04Q2213/13349
摘要： A method for managing a channel matrix is provided. The method includes: obtaining whether a user logs on or logs off; adding a history record of channel information of the user to a channel matrix when the user logs on; recording current channel information of the user in the channel matrix and deleting the channel information of the user from the channel matrix when the user logs off. The channel matrix may be timely updated based on when the user logs on or off. Accordingly, the channel crosstalk is eliminated timely and correctly according to the channel matrix, and the affection on the crosstalk eliminating capacity caused by the user logs on or logs off can be avoided.
摘要翻译：提供了一种用于管理信道矩阵的方法。该方法包括：获取用户是否登录或注销; 当用户登录时，将用户的频道信息的历史记录添加到频道矩阵; 在通道矩阵中记录用户的当前频道信息，并且在用户注销时从频道矩阵中删除用户的频道信息。可以基于用户何时登录或关闭来及时更新信道矩阵。因此，可以根据信道矩阵及时正确地消除信道串扰，并且可以避免由用户登录或注销引起的对串扰消除能力的影响。

6. 发明授权

US08254471B2 Far-end crosstalk canceling method and device, and signal processing system 有权
标题翻译：远端串扰消除方法和装置，以及信号处理系统
公开(公告)号：US08254471B2
公开(公告)日：2012-08-28
申请号：US12478962
申请日：2009-06-05
申请人： Liming Fang
发明人： Liming Fang
IPC分类号： H04B3/32 , H04B15/00 , H04J1/12 , H04L27/28
CPC分类号： H04B3/32 , H04B1/62 , H04J1/12 , H04L2012/6478
摘要： A method for remote crosstalk cancellation, includes: filtering, at a first transmitting end which is connected to a first receiving end over a first line, crosstalk source signals according to values of filtering parameters; synthesizing, at the first transmitting end, a first signal to be transmitted over the first line and the filtered crosstalk source signals; transmitting the synthesized signal from the first transmitting end to the first receiving end over the first line; receiving, at the first transmitting end, a noise statistic related value fed back from the first receiving end; and adjusting, at the transmitting end, the values of the filtering parameters according to the noise statistic related value. A corresponding device and a signal processing system for remote crosstalk cancellation are provided.
摘要翻译：一种用于远程串扰消除的方法，包括：在通过第一线连接到第一接收端的第一发射端处，根据滤波参数的值对串扰源信号进行滤波; 在第一发送端合成要在第一线路上传输的第一信号和经滤波的串扰源信号; 将所述合成信号从所述第一发送端发送到所述第一接收端; 在第一发送端接收从第一接收端反馈的噪声统计相关值; 并且根据噪声统计相关值在发送端调整滤波参数的值。提供了一种用于远程串扰消除的相应设备和信号处理系统。

7. 发明授权

US08165234B2 Method and system for synchronizing OFDM transmission symbols 有权
标题翻译：用于同步OFDM传输符号的方法和系统
公开(公告)号：US08165234B2
公开(公告)日：2012-04-24
申请号：US12273964
申请日：2008-11-19
申请人： Liming Fang , Jun Zhou
发明人： Liming Fang , Jun Zhou
IPC分类号： H04L27/28
CPC分类号： H04L27/2662 , H04L5/0007 , H04L27/2602 , H04L27/2626 , H04L27/2675
摘要： A method for synchronizing orthogonal frequency division multiplexing (OFDM) transmission symbols includes: an OFDM transmission module receives a synchronization signal, and adjusts the OFDM symbols sent by all lines to synchronous symbols according to the synchronization signal and send the symbols out. The present invention also provides a system for synchronizing OFDM transmission symbols. In the present invention, the weaknesses of the prior art are overcome; a synchronization signal generator generates a synchronization signal and sends it to the OFDM transmission equipment; and the OFDM transmission equipment adjusts the OFDM symbols sent by all lines to synchronous symbols according to the synchronization signal and send the symbols out, thus accomplishing synchronization between OFDM symbols and optimizing the performance of the dynamic spectrum management (DSM).
摘要翻译：一种用于同步正交频分复用（OFDM）传输符号的方法包括：OFDM传输模块接收同步信号，并根据同步信号将所有行发送的OFDM符号调整为同步符号，并发送符号。本发明还提供了一种用于同步OFDM传输符号的系统。在本发明中克服了现有技术的缺陷; 同步信号发生器产生同步信号并将其发送到OFDM传输设备; 并且OFDM传输设备根据同步信号将所有线路发送的OFDM符号调整为同步符号，并发送符号，从而完成OFDM符号之间的同步并优化动态频谱管理（DSM）的性能。

8. 发明申请

US20120027118A1 FAR-END CROSSTALK CANCELING METHOD AND DEVICE, AND SIGNAL PROCESSING SYSTEM 有权
标题翻译：最终的CROSSTALK取消方法和设备，以及信号处理系统
公开(公告)号：US20120027118A1
公开(公告)日：2012-02-02
申请号：US13271903
申请日：2011-10-12
申请人： Liming FANG
发明人： Liming FANG
IPC分类号： H04B15/00
CPC分类号： H04B3/32 , H04B1/62 , H04J1/12 , H04L2012/6478
摘要： A method for remote crosstalk cancellation, includes: the combination transmitting signal is performed a pre-coding of crosstalk cancellation in the manner of self-adapting filtering, the self-adapting changes of the values of filtering parameters are guided correctly with the influence of the crosstalk component in the received signals which is reflected indirectly by relevant values of the noise statistic reported by the receiver. A corresponding device and a signal processing system for remote crosstalk cancellation are provided. The self-adapting adjustment of the values of filtering parameters has a favorable astringency and an effect for crosstalk cancellation, avoiding the need to know the channel transmission matrix in advance, while absolutely avoiding the conflict to the existing transmission standard.
摘要翻译：一种用于远程串扰消除的方法，包括：组合发送信号以自适应滤波的方式进行串扰消除的预编码，滤波参数值的自适应变化被正确地引导，由接收机报告的噪声统计量的相关值间接反映的接收信号中的串扰分量。提供了一种用于远程串扰消除的相应设备和信号处理系统。滤波参数值的自适应调整具有良好的收敛性和对串扰消除的效果，避免了事先知道信道传输矩阵，同时绝对避免与现有传输标准的冲突。

9. 发明申请

US20110206102A1 METHOD, SYSTEM, AND DEVICE FOR RAPIDLY EXITING TRAINING 有权
标题翻译：用于快速退出培训的方法，系统和设备
公开(公告)号：US20110206102A1
公开(公告)日：2011-08-25
申请号：US13097950
申请日：2011-04-29
申请人： Liming Fang , Raphael Cendrillon , Pengrui Zhang
发明人： Liming Fang , Raphael Cendrillon , Pengrui Zhang
IPC分类号： H04B1/38
CPC分类号： H04B3/32 , H04M11/062
摘要： A method, a system, and a device for rapidly exiting training are provided. The method includes: in a training procedure of a Vectored-Digital Subscriber Line (DSL) filter, comparing a feedback error value of the filter and/or a swing range of a filter coefficient with a preset threshold, and determining whether the filter meets a convergence condition according to a comparison result; and exiting the training procedure of the filter when the filter meets the convergence condition. The method, system, and device are applicable to a training procedure of a Vectored-DSL precoder or canceller, so as to rapidly exit the training procedure.
摘要翻译：提供了一种用于快速退出训练的方法，系统和装置。该方法包括：在向量数字用户线（DSL）滤波器的训练过程中，将滤波器的反馈误差值和/或滤波器系数的摆动范围与预设阈值进行比较，以及确定滤波器是否满足收敛条件根据比较结果; 并且当滤波器满足收敛条件时退出滤波器的训练过程。方法，系统和设备适用于Vectored-DSL预编码器或消除器的训练程序，以便迅速退出训练程序。

10. 发明申请

US20110176594A1 Method, Apparatus and System for Returning Signal Error in Multi-Carrier Communication System 审中-公开
标题翻译：多载波通信系统中返回信号误差的方法，装置和系统
公开(公告)号：US20110176594A1
公开(公告)日：2011-07-21
申请号：US13043981
申请日：2011-03-09
申请人： Liming Fang , Raphael Cendrillon , Chin Ngek Hung
发明人： Liming Fang , Raphael Cendrillon , Chin Ngek Hung
IPC分类号： H04B17/00
CPC分类号： H04L1/0027 , H04L1/0026 , H04L1/0029 , H04L5/0007 , H04L5/0053
摘要： A method for returning a signal error in a multi-carrier communication system is disclosed. A specific sub-carrier interval is determined. The specific sub-carrier interval is larger than an interval between adjacent sub-carriers in the multi-carrier communication system. A signal error is returned to a central office end on a corresponding frequency in a communication frequency band of the multi-carrier communication system at the specific sub-carrier intervals.
摘要翻译：公开了一种在多载波通信系统中返回信号误差的方法。确定特定的子载波间隔。特定子载波间隔大于多载波通信系统中相邻副载波之间的间隔。在多载波通信系统的通信频带中以特定子载波间隔将信号误差返回到相应频率上的中心局端。

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