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1. 发明申请

US20060133809A1 Methods and apparatus for achieving multiple bit rates in passive optical networks 有权
标题翻译：在无源光网络中实现多个比特率的方法和装置
公开(公告)号：US20060133809A1
公开(公告)日：2006-06-22
申请号：US11015152
申请日：2004-12-17
申请人： Hungkei Chow , Manyalibo Matthews , Dusan Suvakovic , Doutje Van Veen
发明人： Hungkei Chow , Manyalibo Matthews , Dusan Suvakovic , Doutje Van Veen
IPC分类号： H04J14/00
CPC分类号： H04J3/1694 , H04L7/033
摘要： Systems and techniques for multiple bit rate optical data transmission. A passive optical network includes an optical line termination unit (OLT) connected to one or more optical network units (ONUs) by optical elements. The OLT is capable of performing downstream transmission to the ONUs at each of a variety of different bit rates, and each ONU performs upstream transmission at one or more bit rates. The OLT can sense a bit rate of a received transmission and change its operation so as to receive and process the transmission exhibiting the sensed bit rate. Each of the ONUs receives and processes downstream transmissions at one or more bit rates, but each ONU is capable of maintaining a phase and frequency lock to downstream transmissions at all bit rates supported by the OLT. One or more of the ONUs may also receive and process downstream transmissions exhibiting different or changed bit rates.
摘要翻译：用于多比特率光数据传输的系统和技术。无源光网络包括通过光学元件连接到一个或多个光网络单元（ONU）的光线路终端单元（OLT）。 OLT能够以各种不同比特率的每一个对ONU执行下行传输，并且每个ONU以一个或多个比特率执行上行传输。 OLT可以感测接收到的传输的比特率并改变其操作，以便接收和处理呈现感测到的比特率的传输。每个ONU以一个或多个比特速率接收和处理下游传输，但是每个ONU能够在由OLT支持的所有比特率下维持到下行传输的相位和频率锁定。一个或多个ONU还可以接收和处理呈现不同或改变的比特率的下行传输。

2. 发明授权

US08971718B2 Down-sampling clock and data recovery circuit having selectable rate and phase output and method of operation thereof 有权
标题翻译：具有可选速率和相位输出的下采样时钟和数据恢复电路及其操作方法
公开(公告)号：US08971718B2
公开(公告)日：2015-03-03
申请号：US13486552
申请日：2012-06-01
申请人： Hungkei Chow , Dusan Suvakovic , Christophe Van Praet , Guy Torfs , Xin Yin , Zhisheng Li
发明人： Hungkei Chow , Dusan Suvakovic , Christophe Van Praet , Guy Torfs , Xin Yin , Zhisheng Li
IPC分类号： H04B10/00 , H04L7/033 , H03L7/08 , H04L25/06 , H03L7/087
CPC分类号： H04L7/0337 , H03L7/0807 , H03L7/087 , H04L25/06 , Y02D50/10
摘要： A clock and data recovery (CDR) circuit, a method of recovering a clock and data from a received raw data stream and a BI-PON optical network transceiver (ONT) receiver front-end incorporating the CDR circuit. In one embodiment, the CDR circuit includes: (1) a line rate CDR circuit having a voltage controlled oscillator, the line rate CDR circuit configured to recover a raw data stream at a receiving line rate, (2) a fixed-rate down-sampler coupled to the line rate CDR circuit and configured to down-sample the raw data stream based on a fixed-rate and (3) a variable-rate down-sampler coupled to the fixed-rate down-sampler and configured further to down-sample the raw data sample based on a variable-rate.
摘要翻译：时钟和数据恢复（CDR）电路，一种从接收到的原始数据流中恢复时钟和数据的方法以及包含CDR电路的BI-PON光网络收发器（ONT）接收器前端的方法。在一个实施例中，CDR电路包括：（1）具有压控振荡器的线路速率CDR电路，线路速率CDR电路被配置为以接收线路速率恢复原始数据流，（2）固定速率下变频，采样器，其耦合到线路速率CDR电路并且被配置为基于固定速率对原始数据流进行下采样;以及（3）耦合到固定速率下采样器的可变速率下采样器，基于可变速率对原始数据采样进行采样。

3. 发明授权

US08018868B2 Device and associated method for crosstalk estimation 有权
标题翻译：用于串扰估计的装置和相关方法
公开(公告)号：US08018868B2
公开(公告)日：2011-09-13
申请号：US12457412
申请日：2009-06-10
申请人： Carl J. Nuzman , Adriaan J. de Lind van Wijngaarden , Philip A. Whiting , Jochen J. M. Maes , Gerhard G. T. Kramer , Hungkei Chow , Alexei E. Ashikhmin
发明人： Carl J. Nuzman , Adriaan J. de Lind van Wijngaarden , Philip A. Whiting , Jochen J. M. Maes , Gerhard G. T. Kramer , Hungkei Chow , Alexei E. Ashikhmin
IPC分类号： H04L12/26
CPC分类号： H04L27/261 , H04B3/32 , H04B3/487 , H04L1/20 , H04L25/0206
摘要： The present invention relates to a crosstalk estimation device for estimating crosstalk between communication lines in a precoding group. The crosstalk estimation device comprises transmission means for transmitting a pilot sequence and reception means for receiving error feedback on one or more communication lines in the precoding group. The crosstalk estimation device further comprises crosstalk estimation means for combining the pilot sequence with the error feedback in order to obtain a crosstalk estimation between the communication lines. The device further comprises selection means for selecting a subset of one or more communication lines from the precoding group. The transmission means are adapted to transmit the pilot sequence only on the subset.
摘要翻译：串扰估计装置技术领域本发明涉及一种用于估计预编码组中的通信线路之间的串扰的串扰估计装置。串扰估计装置包括用于发送导频序列的发送装置和用于在预编码组中的一个或多个通信线路上接收错误反馈的接收装置。串扰估计装置还包括用于将导频序列与错误反馈组合的串扰估计装置，以便获得通信线路之间的串扰估计。该设备还包括用于从预编码组中选择一条或多条通信线路的子集的选择装置。发送装置适于仅在子集上发送导频序列。

4. 发明授权

US08514687B2 Efficient generation of compensated signals for crosstalk control in a communication system 有权
标题翻译：在通信系统中高效地产生用于串扰控制的补偿信号
公开(公告)号：US08514687B2
公开(公告)日：2013-08-20
申请号：US12915829
申请日：2010-10-29
申请人： Hungkei Chow
发明人： Hungkei Chow
IPC分类号： H04J1/10 , H04J3/12
CPC分类号： H04L25/03343 , H04B3/32 , H04B3/487 , H04L2025/03414 , H04L2025/03426 , H04M11/062
摘要： An access node of a communication system is configured to control crosstalk between channels of the system. Vectoring circuitry in the access node estimates crosstalk between channels of the system, generates a compressed representation of the crosstalk estimates, and generates compensated signals based on the compressed representation of the crosstalk estimates. The compressed representation comprises a value array and an index array, with the value array comprising selected values from each of a plurality of rows of a matrix representation of the crosstalk estimates, and the index array identifying locations of the selected values in the matrix representation of the crosstalk estimates. The compensated signals may be pre-compensated signals or post-compensated signals.
摘要翻译：通信系统的接入节点被配置为控制系统的信道之间的串扰。接入节点中的矢量化电路估计系统信道之间的串扰，产生串扰估计的压缩表示，并且基于串扰估计的压缩表示来产生补偿信号。压缩表示包括值阵列和索引阵列，其中值阵列包括来自串扰估计的矩阵表示的多行中的每一行的选定值，并且索引阵列识别所选择的值在矩阵表示中的位置串扰估计。补偿信号可以是预补偿信号或后补偿信号。

5. 发明申请

US20130322885A1 DOWN-SAMPLING CLOCK AND DATA RECOVERY CIRCUIT HAVING SELECTABLE RATE AND PHASE OUTPUT AND METHOD OF OPERATION THEREOF 有权
标题翻译：具有可选择速率和相位输出的下采样时钟和数据恢复电路及其操作方法
公开(公告)号：US20130322885A1
公开(公告)日：2013-12-05
申请号：US13486552
申请日：2012-06-01
申请人： Hungkei Chow , Dusan Suvakovic , Christophe Van Praet , Guy Torfs , Xin Yin , Zhisheng Li
发明人： Hungkei Chow , Dusan Suvakovic , Christophe Van Praet , Guy Torfs , Xin Yin , Zhisheng Li
IPC分类号： H04L7/033
CPC分类号： H04L7/0337 , H03L7/0807 , H03L7/087 , H04L25/06 , Y02D50/10
摘要： A clock and data recovery (CDR) circuit, a method of recovering a clock and data from a received raw data stream and a BI-PON optical network transceiver (ONT) receiver front-end incorporating the CDR circuit. In one embodiment, the CDR circuit includes: (1) a line rate CDR circuit having a voltage controlled oscillator, the line rate CDR circuit configured to recover a raw data stream at a receiving line rate, (2) a fixed-rate down-sampler coupled to the line rate CDR circuit and configured to down-sample the raw data stream based on a fixed-rate and (3) a variable-rate down-sampler coupled to the fixed-rate down-sampler and configured further to down-sample the raw data sample based on a variable-rate.
摘要翻译：时钟和数据恢复（CDR）电路，一种从接收到的原始数据流中恢复时钟和数据的方法以及包含CDR电路的BI-PON光网络收发器（ONT）接收器前端的方法。在一个实施例中，CDR电路包括：（1）具有压控振荡器的线路速率CDR电路，所述线路速率CDR电路被配置为以接收线路速率恢复原始数据流，（2）固定速率下变频，采样器，其耦合到线路速率CDR电路并且被配置为基于固定速率对原始数据流进行下采样;以及（3）耦合到固定速率下采样器的可变速率下采样器，基于可变速率对原始数据采样进行采样。

6. 发明申请

US20120106315A1 Efficient Generation of Compensated Signals for Crosstalk Control in a Communication System 有权
标题翻译：用于通信系统中串扰控制的补偿信号的高效生成
公开(公告)号：US20120106315A1
公开(公告)日：2012-05-03
申请号：US12915829
申请日：2010-10-29
申请人： Hungkei Chow
发明人： Hungkei Chow
IPC分类号： H04J3/10
CPC分类号： H04L25/03343 , H04B3/32 , H04B3/487 , H04L2025/03414 , H04L2025/03426 , H04M11/062
摘要： An access node of a communication system is configured to control crosstalk between channels of the system. Vectoring circuitry in the access node estimates crosstalk between channels of the system, generates a compressed representation of the crosstalk estimates, and generates compensated signals based on the compressed representation of the crosstalk estimates. The compressed representation comprises a value array and an index array, with the value array comprising selected values from each of a plurality of rows of a matrix representation of the crosstalk estimates, and the index array identifying locations of the selected values in the matrix representation of the crosstalk estimates. The compensated signals may be pre-compensated signals or post-compensated signals.
摘要翻译：通信系统的接入节点被配置为控制系统的信道之间的串扰。接入节点中的矢量化电路估计系统信道之间的串扰，产生串扰估计的压缩表示，并且基于串扰估计的压缩表示来产生补偿信号。压缩表示包括值阵列和索引阵列，其中值阵列包括来自串扰估计的矩阵表示的多行中的每一行的选定值，并且索引阵列识别所选择的值在矩阵表示中的位置串扰估计。补偿信号可以是预补偿信号或后补偿信号。

7. 发明申请

US20090310502A1 Device and associated method for crosstalk estimation 有权
标题翻译：用于串扰估计的装置和相关方法
公开(公告)号：US20090310502A1
公开(公告)日：2009-12-17
申请号：US12457412
申请日：2009-06-10
申请人： Carl J. Nuzman , Adriaan J. de Lind van Wijngaarden , Philip A. Whiting , Jochen J. M. Maes , Gerhard G.T. Kramer , Hungkei Chow , Alexei E. Ashikhmin
发明人： Carl J. Nuzman , Adriaan J. de Lind van Wijngaarden , Philip A. Whiting , Jochen J. M. Maes , Gerhard G.T. Kramer , Hungkei Chow , Alexei E. Ashikhmin
IPC分类号： H04L12/26
CPC分类号： H04L27/261 , H04B3/32 , H04B3/487 , H04L1/20 , H04L25/0206
摘要： The present invention relates to a crosstalk estimation device for estimating crosstalk between communication lines in a precoding group. The crosstalk estimation device comprises transmission means for transmitting a pilot sequence and reception means for receiving error feedback on one or more communication lines in the precoding group. The crosstalk estimation device further comprises crosstalk estimation means for combining the pilot sequence with the error feedback in order to obtain a crosstalk estimation between the communication lines. The device further comprises selection means for selecting a subset of one or more communication lines from the precoding group. The transmission means are adapted to transmit the pilot sequence only on the subset.
摘要翻译：串扰估计装置技术领域本发明涉及一种用于估计预编码组中的通信线路之间的串扰的串扰估计装置。串扰估计装置包括用于发送导频序列的发送装置和用于在预编码组中的一个或多个通信线路上接收错误反馈的接收装置。串扰估计装置还包括用于将导频序列与错误反馈组合的串扰估计装置，以便获得通信线路之间的串扰估计。该设备还包括用于从预编码组中选择一条或多条通信线路的子集的选择装置。发送装置适于仅在子集上发送导频序列。

8. 发明授权

US09100506B2 Joint signal processing across a plurality of line termination cards 有权
标题翻译：跨越多个线路终端卡的联合信号处理
公开(公告)号：US09100506B2
公开(公告)日：2015-08-04
申请号：US13319248
申请日：2010-06-10
申请人： Hungkei Chow , Adriaan De Lind Van Wijngaarden , Michael Peeters , Dirk Vanderhaegen
发明人： Hungkei Chow , Adriaan De Lind Van Wijngaarden , Michael Peeters , Dirk Vanderhaegen
IPC分类号： H04M1/76 , H04M11/06 , H04B3/32 , H04L25/03
CPC分类号： H04M11/062 , H04B3/32 , H04L25/03343 , H04L2025/03426
摘要： In one embodiment, the line termination card includes a data output terminal configured to output a data sequence. The card further includes a vectoring entity configured to parse and encode the data sequence into frequency samples according to a carrier loading parameter, configured to scale the frequency samples into scaled frequency samples according to a carrier scaling parameter, and, configured to process the scaled frequency samples for crosstalk compensation. A controller is configured to adjust the carrier loading parameter and the carrier scaling parameter, and a forwarder is coupled to the data output terminal and to the controller. The forwarder is configured to forward the data sequence, the carrier loading parameter and the carrier scaling parameter towards a further line termination card.
摘要翻译：在一个实施例中，线路终端卡包括被配置为输出数据序列的数据输出端子。卡还包括向量实体，其被配置为根据载波负载参数将数据序列解析和编码为频率样本，其被配置为根据载波缩放参数将频率样本缩放为缩放的频率样本，并且被配置为处理缩放频率采样串扰补偿。控制器被配置为调整载波负载参数和载波缩放参数，并且转发器耦合到数据输出端子和控制器。转发器被配置为向另一个线路终端卡转发数据序列，载波加载参数和载波缩放参数。

9. 发明申请

US20120057693A1 Joint Signal Processing Across A Plurality Of Line Termination Cards 有权
标题翻译：联合信号处理跨多个线路终端卡
公开(公告)号：US20120057693A1
公开(公告)日：2012-03-08
申请号：US13319248
申请日：2010-06-10
申请人： Hungkei Chow , Adriaan De Lind Van Wijngaarden , Michael Peeters , Dirk Vanderhaegen
发明人： Hungkei Chow , Adriaan De Lind Van Wijngaarden , Michael Peeters , Dirk Vanderhaegen
IPC分类号： H04J1/12 , H04M9/08
CPC分类号： H04M11/062 , H04B3/32 , H04L25/03343 , H04L2025/03426
摘要： In one embodiment, the line termination card includes a data output terminal configured to output a data sequence. The card further includes a vectoring entity configured to parse and encode the data sequence into frequency samples according to a carrier loading parameter, configured to scale the frequency samples into scaled frequency samples according to a carrier scaling parameter, and, configured to process the scaled frequency samples for crosstalk compensation. A controller is configured to adjust the carrier loading parameter and the carrier scaling parameter, and a forwarder is coupled to the data output terminal and to the controller. The forwarder is configured to forward the data sequence, the carrier loading parameter and the carrier scaling parameter towards a further line termination card.
摘要翻译：在一个实施例中，线路终端卡包括被配置为输出数据序列的数据输出端子。卡还包括向量实体，其被配置为根据载波负载参数将数据序列解析和编码为频率样本，其被配置为根据载波缩放参数将频率样本缩放为缩放的频率样本，并且被配置为处理缩放频率采样串扰补偿。控制器被配置为调整载波负载参数和载波缩放参数，并且转发器耦合到数据输出端子和控制器。转发器被配置为向另一个线路终端卡转发数据序列，载波加载参数和载波缩放参数。

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