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1. 发明授权

US09660695B2 Method and apparatus for sensing noise signals in a wireline communications environment 有权
公开(公告)号：US09660695B2
公开(公告)日：2017-05-23
申请号：US15195484
申请日：2016-06-28
申请人： IKANOS Communications, Inc.
发明人： Laurent Francis Alloin , William Edward Keasler, Jr. , Laurent Pierrugues , Arnold Muralt
IPC分类号： H04B3/32 , H04B3/46 , H04B3/487 , H04B3/466 , H04L12/28
CPC分类号： H04B3/32 , H04B3/46 , H04B3/466 , H04B3/487 , H04L12/2856
摘要： The present invention relates to methods and apparatuses for sensing noise sources in a wireline communications environment such as a customer premises environment in a DSL system. In embodiments, the invention includes an additional sensor that is connected to power mains in a DSL customer premises environment either to characterize, at their source, noises coupling into the DSL lines, and/or to mitigate their impact into the DSL lines. One objective is associated with diagnostics that help to better characterize the noise signals themselves and derive correlation of signals sensed from the power mains and their possible projection onto the DSL line. Another objective makes use of these power line sensor signals to mitigate or to eliminate power line noises that make their way onto the DSL line. Example embodiments further include and exploit signals from additional secondary sensors such as secondary common mode, differential mode and phantom mode sensors.

2. 发明申请

US20100046559A1 Method and apparatus for data transmission in home networks 有权
标题翻译：家庭网络中数据传输的方法和装置
公开(公告)号：US20100046559A1
公开(公告)日：2010-02-25
申请号：US12583538
申请日：2009-08-21
申请人： Darren Hutchinson , Sigurd SCHELSTRAETE
发明人： Darren Hutchinson , Sigurd SCHELSTRAETE
IPC分类号： H04J4/00 , H04J1/00
CPC分类号： H04L27/2626 , H04B3/54 , H04L1/1854 , H04L5/0005 , H04L5/0037 , H04L5/0091 , H04L27/2647
摘要： A multi-tone modem with components forming a transmit path and a receive path configured to couple to a wired communication medium for at least intermittent communication of frequency division multiplexed multi-tone modulated communication channels thereon. A Fourier transform component transforms received communication channels between a time domain and a frequency domain and vice-versa. Selected components on the receive path determine alignments between the received multiplexed communication channels in the time domain using alignment determinations made in both a time domain and frequency domain portions of the receive path. The Fourier transform component transforms a stream of digitized samples of the received multiplexed communication channels from the time to the frequency domain using the alignment determinations made by the selected components on the receive path. In another embodiment of the invention the multi-tone modem includes a scheduler which optimizes bandwidth allocation on the wired communication medium.
摘要翻译：具有形成发送路径的组件的多音调制解调器和被配置为耦合到有线通信介质的接收路径，用于至少间歇地通信其频分复用多音调调制通信信道。傅里叶变换分量在时域和频域之间变换接收到的通信信道，反之亦然。接收路径上的所选择的组件使用在接收路径的时域和频域部分中进行的对准确定来确定时域中所接收的复用通信信道之间的对准。傅立叶变换分量使用由接收路径上的所选择的分量进行的对准确定，将接收到的复用的通信信道的数字化样本流从时间变换到频域。在本发明的另一个实施例中，多音调制解调器包括优化有线通信介质上的带宽分配的调度器。

3. 发明申请

US20100002755A1 Method and apparatus for a multi-tone modem 有权
标题翻译：多音调制解调器的方法和装置
公开(公告)号：US20100002755A1
公开(公告)日：2010-01-07
申请号：US12459129
申请日：2009-06-25
申请人： Sam Heidari , Sivannarayana Nagireddi , Sigurd Schelstraete , Avadhani Shridhar
发明人： Sam Heidari , Sivannarayana Nagireddi , Sigurd Schelstraete , Avadhani Shridhar
IPC分类号： H04B1/38
CPC分类号： H04B3/542 , H04B2203/5408 , H04B2203/5445 , H04B2203/5454 , H04L5/0037 , H04L5/0064 , H04L5/0092 , H04L5/1438
摘要： A multi-tone modem with shared and discrete components forming a transmit path and a receive path configured to couple to a wired communication medium to communicate at least one multi-tone modulated communication channel thereon. The modem includes a multi-tone modulator component and a configurable frequency up converter component. The multi-tone modulator component is configured for multi-tone modulation and demodulation of a transmitted and received communication channel at a base band frequency range. The configurable frequency up converter component is coupled to the multi-tone modulator to selectably up convert the frequency range of the transmitted base band signal from the multi-tone modulator to that of a selected communication band and down convert received signals from the selected communication band to the base band for demodulation by the multi-tone modulator.
摘要翻译：具有形成发送路径的共享和分立组件的多音调制解调器和被配置为耦合到有线通信介质以在其上通信至少一个多音调调制通信信道的接收路径。调制解调器包括多音调制器组件和可配置的升频转换器组件。多音调制器部件被配置为在基带频率范围内对发送和接收的通信信道进行多音调制和解调。可配置的上变频器组件耦合到多音调制器以可选择地将来自多音调制器的发射基带信号的频率范围转换成所选择的通信频带的频率范围，并且将来自所选择的通信频带的接收信号到基带以进行多音调制器的解调。

4. 发明申请

US20090049347A1 Method and apparatus for bit error determination in multi-tone transceivers 审中-公开
标题翻译：用于多音调收发器中误码确定的方法和装置
公开(公告)号：US20090049347A1
公开(公告)日：2009-02-19
申请号：US12228972
申请日：2008-08-18
申请人： Avadhani Shridhar , Sam Heidari
发明人： Avadhani Shridhar , Sam Heidari
IPC分类号： G06F11/00
CPC分类号： H04L5/1446 , H04L1/0003 , H04L1/0059 , H04L1/203 , H04L1/206 , H04L5/1469 , H04L27/2647 , H04L27/2689
摘要： A transceiver with a plurality of components coupled to one another to form a transmit path and a receive path for multi-tone modulation of user data across a communication medium. The transceiver includes a framer and a deframer. The framer is configured to momentarily suspend framing of user data before processing bits associated with tones targeted for reference data transport and injects the pre-agreed reference pattern therein, after which framing of user data resumes. The deframer is configured to momentarily suspend deframing of received user data bits before processing bits associated with tones targeted for transport of pre-agreed reference data and extracts the received reference bits thereof for comparison with the corresponding pre-agreed reference bits to determine errors therein, after which deframing of user data resumes.
摘要翻译：具有多个组件的收发器，彼此耦合以形成用于通过通信介质的用户数据的多音调制的发送路径和接收路径。收发器包括一个成帧器和一个deframer。成帧器被配置为在处理与针对参考数据传输的音调相关联的位之前暂时停止用户数据的成帧，并在其中注入预先约定的参考模式，之后恢复用户数据的构图。解帧器被配置为在处理与预先约定的参考数据的传输的目标的音调相关联的位之前暂时停止所接收的用户数据位的解帧，并提取其接收到的参考比特以与对应的预先约定的参考比特进行比较以确定其中的错误，之后恢复用户数据的清除。

5. 发明申请

US20080285740A1 Method and apparatus for crosstalk estimation 审中-公开
标题翻译：用于串扰估计的方法和装置
公开(公告)号：US20080285740A1
公开(公告)日：2008-11-20
申请号：US12082541
申请日：2008-04-10
申请人： Sigurd Schelstraete , Sudhakar Kalluri
发明人： Sigurd Schelstraete , Sudhakar Kalluri
IPC分类号： H04M3/18
CPC分类号： H04L5/14 , H04B3/487 , H04L5/0007 , H04L5/1461
摘要： A line card including: a co-channel estimator and a code selector. The line card is configured to couple to digital subscriber lines to support multi-tone modulation of communications channels thereon. The co-channel estimator is configured to estimate co-channel crosstalk coupling coefficients among selected pairs of the subscriber lines at levels for which the total crosstalk into a selected victim line among the plurality of digital subscriber lines substantially corresponds to the sum of the products of the corresponding crosstalk coupling coefficient for each remaining disturber one of the plurality of subscriber lines and a corresponding substantially unique vector transmitted thereon. The code selector couples to the co-channel estimator. The code selector is configured to select a cross-talk estimation code type and to generate substantially unique code vectors derived there from for injection into selected ones of the of subscriber lines.
摘要翻译：线卡，包括：同频道估计器和代码选择器。线卡被配置为耦合到数字用户线路以支持其上的通信信道的多音调制。共信道估计器被配置为在多个数字用户线路中对所选择的受害线路的总串扰基本上对应于多个用户线路的选择对的总和之间的估计中，估计选择的用户线路中的同频道串扰耦合系数多个用户线路中的每个剩余干扰一个的相应串扰耦合系数和在其上传输的对应的基本唯一的向量。代码选择器耦合到同信道估计器。代码选择器被配置为选择串扰估计代码类型并且生成从其导出的基本上唯一的代码向量用于注入用户线中的选定的代码。

6. 发明授权

US07106789B1 Method and apparatus for provisioning TDM and packet based communications on a VDSL communication medium 有权
标题翻译：用于在VDSL通信介质上提供TDM和基于分组的通信的方法和装置
公开(公告)号：US07106789B1
公开(公告)日：2006-09-12
申请号：US09779790
申请日：2001-02-07
申请人： Behrooz Rezvani
发明人： Behrooz Rezvani
IPC分类号： H04B1/38
CPC分类号： H04L27/2656 , H04L12/2879 , H04L12/2889
摘要： An method and apparatus for provisioning multiple Next and fractional T1 along with packet based communications over a shared X-DSL communication link is disclosed. The communication link may be wired or wireless. The current invention provides a method and apparatus for flexibly provisioning businesses and other high bandwidth users, with multiple communication channels and multiple service types, both packet based and SDM/TDM. An efficient and configurable method and apparatus for multiplexing of both packets and STM channels on to a single VDSL frame is disclosed. At the receiver in the NT the VDSL receiver as explained is configured to de-multiplex individual channels and route them to individual users/suits within the building.
摘要翻译：公开了一种用于通过共享的X-DSL通信链路提供多个Next和小数T1以及基于分组的通信的方法和装置。通信链路可以是有线或无线的。本发明提供了一种方法和装置，用于灵活地供应业务和其他高带宽用户，具有多个通信信道和多种服务类型，包括基于分组和SDM / TDM。公开了一种用于将分组和STM信道复用到单个VDSL帧上的有效且可配置的方法和装置。在NT的接收机中，如所解释的VDSL接收机被配置为对各个信道进行解复用，并将它们路由到建筑物内的各个用户/服务。

7. 发明授权

US06976202B1 Method and apparatus for time-frequency domain forward error correction for digital communication systems 有权
标题翻译：用于数字通信系统的时频域前向纠错的方法和装置
公开(公告)号：US06976202B1
公开(公告)日：2005-12-13
申请号：US10095618
申请日：2002-03-11
申请人： Behrooz Rezvani , George Ginis
发明人： Behrooz Rezvani , George Ginis
IPC分类号： H03M13/00 , H03M13/03 , H03M13/29 , H04L1/00 , H04L27/26
CPC分类号： H04L1/0057 , H03M13/2957 , H03M13/3776 , H04L1/0042 , H04L1/005 , H04L1/0066 , H04L1/04 , H04L5/0007
摘要： A method and apparatus for time and frequency domain forward error correction (FEC) in a modem which communicates data using multiple discrete sub-channels is provided. The invention may be implemented in hardware, software or firmware. In an embodiment of the invention a modem with a plurality of components forming a transmit path and a receive path is disclosed. The modem communicates data across a wired or wireless communication medium using a multiplicity of discrete sub-channels. The modem includes a transform component and a time domain FEC component. The transform component transforms the multiplicity of discrete sub-channels of a communication between a time domain and a frequency domain on the receive path and vice-versa on the transmit path. The time domain FEC component couples to the transform component. The time domain FEC component has a complementary encoder and decoder portion on the transmit and receive paths respectively. The encoder and decoder portions encode and decode respectively the multiplicity of discrete sub-channels in the time domain.
摘要翻译：提供了一种用于使用多个离散子信道传送数据的调制解调器中的时域和频域前向纠错（FEC）的方法和装置。本发明可以在硬件，软件或固件中实现。在本发明的实施例中，公开了具有形成发送路径和接收路径的多个部件的调制解调器。调制解调器使用多个离散子信道在有线或无线通信介质上传送数据。调制解调器包括变换组件和时域FEC组件。变换分量将发送路径上的接收路径上的时域和频域之间的通信的多个离散子信道进行变换，反之亦然。时域FEC组件耦合到变换组件。时域FEC分量在发送和接收路径上分别具有互补的编码器和解码器部分。编码器和解码器部分分别对时域中的多个离散子信道进行编码和解码。

8. 发明申请

US20090190636A1 Method and apparatus for managing XDSL pseudo links 有权
标题翻译：用于管理XDSL伪链接的方法和装置
公开(公告)号：US20090190636A1
公开(公告)日：2009-07-30
申请号：US12322097
申请日：2009-01-29
申请人： Alfred K. Mui , Christopher M. Chow , Hojat Khelghati , Jalal O. Azim
发明人： Alfred K. Mui , Christopher M. Chow , Hojat Khelghati , Jalal O. Azim
IPC分类号： H04B1/38
CPC分类号： H04M11/062
摘要： A transceiver having shared and discrete components forming a transmit path and a receive path configured to couple to a subscriber line for establishing a communication channel with a remote transceiver. The transceiver comprises a pseudo link manager coupled between the transmit and receive path components to manage pseudo links on the subscriber line prior to entry into a session with the remote transceiver. The pseudo link manager includes: a line monitor and a disruptor. The line monitor monitors the subscriber line, prior to initiating a session, for a received communication signal indicative of a pre-existing session on the remote transceiver. The disruptor transmits a disruptor signal over the subscriber line to the remote transceiver responsive to the detection by the monitor of the received communication signal; thereby disrupting the remote transmitter's pre-existing session and allowing a new session to be established with the remote transceiver.
摘要翻译：具有形成发送路径的共享和离散组件的收发器和被配置为耦合到用户线路以与远程收发器建立通信信道的接收路径。收发器包括耦合在发送和接收路径组件之间的伪链路管理器，以在与远程收发器进入会话之前管理用户线路上的伪链路。伪链路管理器包括：线路监视器和中断器。线路监视器在发起会话之前监视用户线路，用于接收到指示远程收发器上的现有会话的通信信号。响应于监视器对接收到的通信信号的检测，干扰器通过用户线路将干扰信号发送到远端收发器; 从而破坏远程发射机的预先存在的会话并允许与远程收发器建立新的会话。

9. 发明授权

US07406042B1 Method and apparatus for dynamic multi-line bonding in communication systems 有权
标题翻译：通信系统中动态多线路接合的方法和装置
公开(公告)号：US07406042B1
公开(公告)日：2008-07-29
申请号：US10290973
申请日：2002-11-07
申请人： Avadhani Shridhar , Behrooz Rezvani , Sushil Agarwal , Alfred Mui , Masoud Eskandari
发明人： Avadhani Shridhar , Behrooz Rezvani , Sushil Agarwal , Alfred Mui , Masoud Eskandari
IPC分类号： H04L12/26 , H04L12/28 , H04J1/00
CPC分类号： H04L43/0852 , H04L12/2856 , H04L12/2885 , H04L12/2898 , H04L41/0896 , H04L41/5003 , H04L41/5025 , H04L41/5067
摘要： A bundler, un-bundler and sequencer for use in controlling and driving opposing sets of logical or physical modems to drive multiple-subscriber lines with multiple communication channels. The sequencer determines subscriber requirements such as maximum and minimum bandwidth and quality of service. The sequencer also determines bandwidth availability and status of multiple subscriber lines from which a bundle may be formed. The bundler couple to the sequencer and implement header or headerless insertion of multiple channels in round robin sequence into the X-DSL frames at data rates which correspond with subscriber requirements. The un-bundler reverses the process of the bundler and passes the appropriate packet data onto the corresponding network.
摘要翻译：捆绑器，非捆绑器和定序器，用于控制和驱动相对的逻辑或物理调制解调器组，以驱动具有多个通信信道的多用户线路。定序器确定用户需求，如最大和最小带宽以及服务质量。定序器还确定可以形成束的多个用户线的带宽可用性和状态。捆绑器耦合到定序器，并以符合用户要求的数据速率将轮询序列中的多个信道的头部或无头插入多个信道插入到X-DSL帧中。解包器反转捆绑器的过程，并将适当的分组数据传递到相应的网络上。

10. 发明申请

US20080069193A1 Method and apparatus for differentiated communication channel robustness in a multi-tone transceiver 有权
标题翻译：用于多音调收发器中差分通信信道鲁棒性的方法和装置
公开(公告)号：US20080069193A1
公开(公告)日：2008-03-20
申请号：US11901346
申请日：2007-09-15
申请人： Avadhani Shridhar , Sam Heidari , Rouben Toumani , Ying Wu
发明人： Avadhani Shridhar , Sam Heidari , Rouben Toumani , Ying Wu
IPC分类号： H04B1/38
CPC分类号： H04L5/006 , H04L5/0042 , H04L5/0046
摘要： A multi-tone transceiver including: a channel controller and a plurality of components forming a transmit path and a receive path. The channel controller configured to determine bit-loading for each successive symbol or tone set based on a 1st noise margin target for a first subset of tones in each tone set dedicated to transport of a robust communications channel (RCC) and based on a 2nd noise margin target less than the 1st noise margin target for remaining tones in each tone set dedicated to a standard communications channel (SCC). The plurality of components forming the transmit and receive paths are responsive to the channel controller to select for data modulated on a given tone at least one of smaller constellations and higher gain scaling levels when the given tone corresponds to an RCC tone as compared to an SCC tone, whereby the first set of tones dedicated to the RCC exhibit greater immunity to noise variations than the remaining tones dedicated to the SCC.
摘要翻译：一种多音调收发器，包括：信道控制器和形成发送路径和接收路径的多个组件。信道控制器，被配置为基于专用于传输鲁棒通信信道的每个音调集合中的第一音调子集，确定每个连续符号或音调集合的比特加载（...） RCC），并且基于小于专用于标准通信信道（SCC）的每个音调集合中的剩余音调的小于噪声余量目标的2 nd nd噪声容限目标。形成发送和接收路径的多个组件响应于信道控制器，以便在给定音调对应于RCC音调与SCC相比时，为给定音调调制的数据中的至少一个较小星座和较高增益缩放级别音调，由此专用于RCC的第一组音调比专用于SCC的剩余音调具有更大的对噪声变化的抗扰度。

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