公开(公告)号：US20170064074A1

公开(公告)日：2017-03-02

申请号：US15185725

申请日：2016-06-17

申请人： Oki Data Corporation

发明人： Kimiaki OGAWA

IPC分类号： H04M1/76 ,  H04N1/00 ,  H04M19/02

CPC分类号： H04M1/76 ,  H04B3/493 ,  H04M3/28 ,  H04M3/305 ,  H04M7/0096 ,  H04M11/066 ,  H04M19/02 ,  H04N1/00206 ,  H04N1/00281 ,  H04N2201/0093

摘要： A communication device includes: a signal generator configured to generate a first signal and supply the first signal to a telephone line; a terminator having a variable terminal impedance as seen from the telephone line; a detector configured to detect a difference between the terminal impedance and a line impedance of the telephone line; and a controller configured to determine the terminal impedance so that the difference is reduced.

摘要翻译： 通信装置包括：信号发生器，被配置为产生第一信号并将第一信号提供给电话线; 具有从电话线看到的可变端子阻抗的终端器; 检测器，其被配置为检测所述终端阻抗与所述电话线的线路阻抗之间的差异; 以及控制器，被配置为确定所述端子阻抗，使得所述差被减小。

公开(公告)号：US09363364B2

公开(公告)日：2016-06-07

申请号：US13321045

申请日：2010-05-27

申请人： Gilles Bourgoin

发明人： Gilles Bourgoin

IPC分类号： H04M7/04 ,  H04M1/76 ,  H04M1/74

CPC分类号： H04M1/76 ,  H04M1/74

摘要： The present invention relates to the field of telephony and specifically to a method for correcting the degradation of telephone signal quality caused by analogue lines. The invention describes managing, via the receiver, a specific correction of telephone signal degradation caused by the length of the analogue line between the parties. Said line length between the receiver and the telephone switchboard to which said receiver is connected is stored in the receiver. Advantageously, the line lengths between the receiver of the called party and the corresponding switchboard are stored, for example in the director of the apparatus. During the call, said line length is taken into account by a specific correction means for said correction inside the receiver.

摘要翻译： 本发明涉及电话领域，具体涉及用于校正由模拟线路引起的电话信号质量恶化的方法。 本发明描述了经由接收机管理由双方之间的模拟线路的长度引起的电话信号劣化的特定校正。 所述接收机与所述接收机连接的所述电话交换机之间的所述线路长度被存储在所述接收机中。 有利地，被叫方的接收机与对应的交换机之间的线路长度被存储在例如设备的控制器中。 在通话期间，通过用于接收机内的所述校正的特定校正装置考虑所述线路长度。

公开(公告)号：US09287931B2

公开(公告)日：2016-03-15

申请号：US13435268

申请日：2012-03-30

申请人： Jean-Philippe Cornil ,  Miguel Peeters

发明人： Jean-Philippe Cornil ,  Miguel Peeters

IPC分类号： H04M1/76 ,  H04B3/487 ,  H04L27/34 ,  H04L25/03

CPC分类号： H04B3/487 ,  H04L27/345 ,  H04L2025/03426

摘要： A DSL transmitter and receiver are disclosed that efficiently estimate crosstalk interference. When transmitting over a DSL cable, each of the lines of the cable cause interference in the signals traveling though the other lines in the form of crosstalk. In order to reduce the complexity of the crosstalk estimation calculations, the transmitter sends a measurement signal whose matrix includes a plurality of sub-matrices that include less than all of the signal slots and are modulated with QAM +1s or −1s. Meanwhile, the remaining signal slots are modified with QAM 0 s, which do not require any processing during the crosstalk estimation. Rather than calculating crosstalk vectors of all lines, the receiver need only calculate the crosstalk vectors for the signal slots contained within the sub-matrices, thereby significantly reducing complexity.

摘要翻译： 公开了一种有效估计串扰干扰的DSL发射机和接收机。 当通过DSL电缆发送时，电缆的每条线路以串扰的形式干扰通过其他线路传播的​​信号。 为了降低串扰估计计算的复杂度，发射机发送一个测量信号，该信号的矩阵包括少于所有信号时隙的多个子矩阵，并用QAM + 1s或-1s进行调制。 同时，剩余的信号时隙用QAM 0修改，在串扰估计中不需要任何处理。 接收机不需要计算所有线路的串扰向量，而只需要计算包含在子矩阵内的信号时隙的串扰向量，从而显着降低复杂度。

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。

公开(公告)号：US09020145B2

公开(公告)日：2015-04-28

申请号：US13718621

申请日：2012-12-18

申请人： Futurewei Technologies, Inc.

发明人： Haixiang Liang ,  Dong Wei

IPC分类号： H04M1/76 ,  H04J1/12 ,  H04B7/10 ,  H04J3/10 ,  H04B3/32 ,  H04L25/03

CPC分类号： H04J3/10 ,  H04B3/32 ,  H04L25/03343

摘要： A digital subscriber line access multiplexer (DSLAM) configured to couple to a first subscriber line and a second subscriber line, wherein the DSLAM comprises at least one transmitter configured to transmit a first signal onto the first subscriber line in a first time slot, transmit a second signal onto the second subscriber line in the first time slot, wherein the first and second signals are linearly related and are intended for a first customer premise equipment (CPE), transmit a third signal onto the second subscriber line in a second time slot, and transmit a fourth signal onto the first subscriber line in the second time slot, wherein the third and fourth signals are linearly related and are intended for a second CPE.

摘要翻译： 一种被配置为耦合到第一用户线路和第二用户线路的数字用户线路接入复用器（DSLAM），其中所述DSLAM包括被配置为在第一时隙中将第一信号发送到所述第一用户线路上的至少一个发射机， 第二信号在第一时隙中的第二用户线路上，其中第一和第二信号是线性相关的，并且意图用于第一客户驻地设备（CPE），在第二时隙中将第三信号发送到第二用户线路上， 并且在所述第二时隙中将第四信号发送到所述第一用户线上，其中所述第三和第四信号是线性相关的并且用于第二CPE。

公开(公告)号：US20150103986A1

公开(公告)日：2015-04-16

申请号：US14316539

申请日：2014-06-26

申请人： REALTEK SEMICONDUCTOR CORPORATION

发明人： YUNG-TAI CHEN ,  CHENG-HSIEN LI ,  HUNG-CHEN CHU ,  JIAN-RU LIN

IPC分类号： H04B3/20 ,  H04M1/76

CPC分类号： H04B3/20

摘要： This invention discloses a signal transmitting and receiving circuit of a digital subscriber line used for transmitting an output signal to a telecommunication loop or receiving an input signal from the telecommunication loop. The signal transmitting and receiving circuit comprises a transformer, which is coupled to the telecommunication loop; a signal transmitting module, which is coupled to the transformer, for generating the output signal; a signal receiving module, which is coupled to the transformer, for processing the input signal; an echo cancelling circuit, comprising passive components and having two ends, one of which is coupled to the signal transmitting module and the transformer, the other is coupled to the signal receiving module and the transformer. The output signal is transmitted to the telecommunication loop via the electromagnetic coupling of the transformer, and the input signal is received by the signal receiving module by the electromagnetic coupling of the transformer.

摘要翻译： 本发明公开了一种数字用户线路的信号发送和接收电路，用于向电信环路发送输出信号或从电信环路接收输入信号。 信号发射和接收电路包括耦合到电信环路的变压器; 信号发射模块，其耦合到所述变压器，用于产生所述输出信号; 信号接收模块，其耦合到所述变压器，用于处理所述输入信号; 回波消除电路，包括无源部件并具有两端，其中一端耦合到信号传输模块和变压器，另一端耦合到信号接收模块和变压器。 输出信号通过变压器的电磁耦合传输到电信环路，输入信号由变压器的电磁耦合由信号接收模块接收。

公开(公告)号：US20100296648A1

公开(公告)日：2010-11-25

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： H04M1/76

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 Lever 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。 虚拟噪声技术的利用提高了DSM Lever 2算法下的线路稳定性，具有优化用户线的效果。

公开(公告)号：US07809076B1

公开(公告)日：2010-10-05

申请号：US11373841

申请日：2006-03-11

申请人： Ayman Ghobrial ,  Michael D. Turner ,  Daniel M. Joffe

发明人： Ayman Ghobrial ,  Michael D. Turner ,  Daniel M. Joffe

IPC分类号： H04L25/03 ,  H04M1/76 ,  H04M7/00

CPC分类号： H04M3/34 ,  H04L25/03885 ,  H04L25/085 ,  H04M3/002

摘要： A communication system adaptively cancels noise and/or interference from signals communicated through a communication channel, such as signals communicated by a telecommunication network. The system, based on a common mode signal of a received signal, generates an estimate of noise or interference within a differential mode signal of the received signal. The system then subtracts the estimate from the differential mode signal in an effort to remove noise from the differential mode signal thereby providing a differential mode signal that is substantially free of the estimated noise or interference.

摘要翻译： 通信系统通过诸如由电信网络传送的信号通过通信信道传送的信号自适应地消除噪声和/或干扰。 该系统基于接收信号的共模信号，在接收信号的差分模式信号中产生噪声或干扰的估计。 系统然后从差分模式信号中减去估计值，以努力去除差分模式信号中的噪声，从而提供基本上没有估计的噪声或干扰的差模信号。

公开(公告)号：US20100183141A1

公开(公告)日：2010-07-22

申请号：US12613494

申请日：2009-11-05

申请人： Tatsuya Arai ,  Ching-Chao Huang ,  Clement Kam Lam Luk ,  Jeremy Buan ,  Tsutomu Matsuo ,  Toshiyuki Takada ,  Masakazu Nagata

发明人： Tatsuya Arai ,  Ching-Chao Huang ,  Clement Kam Lam Luk ,  Jeremy Buan ,  Tsutomu Matsuo ,  Toshiyuki Takada ,  Masakazu Nagata

IPC分类号： H04M1/76 ,  H04M9/00

CPC分类号： H04M1/76 ,  H05K1/0245 ,  H05K2201/09245 ,  H05K2201/10689

摘要： The present invention involves chip-to-chip communication systems for reducing Far-End Crosstalk (FEXT) through the use of novel polarity swapping to negate the cumulative effect of FEXT. Skew adjustment is used to improve the FEXT cancellation from polarity swapping. The polarity reversal location or locations among FEXT sources are optimized to achieve maximum FEXT cancellation. The novelty polarity swapping technique can be applied to a wide variety of systems that can benefit from FEXT reduction.

摘要翻译： 本发明涉及通过使用新的极性交换来减少FEXT的累积效应来减少远端串扰（FEXT）的芯片到芯片通信系统。 倾斜调整用于改善极性交换中的FEXT消除。 FEXT源中的极性反转位置或位置被优化，以实现最大的FEXT取消。 新颖的极性交换技术可以应用于可以从FEXT减少中受益的各种系统。

公开(公告)号：US07702319B1

公开(公告)日：2010-04-20

申请号：US11172040

申请日：2005-06-30

申请人： Guner Arslan ,  David O. Anderton

发明人： Guner Arslan ,  David O. Anderton

IPC分类号： H04M1/76 ,  H04M7/00

CPC分类号： H04W4/20 ,  H04M3/42391

摘要： A communication apparatus includes a mechanism for reducing loss of text telephone information during normal traffic channel preempting. The communication apparatus includes a transmitter that may generate a signal including a plurality of text telephone symbols for transmission via a voice channel. The transmitter may receive a notification that indicates information transmitted via the voice channel will be replaced by control information. In response to receiving the notification, the transmitter may further selectively prevent at least a portion of the plurality of text telephone symbols from being provided for transmission.

摘要翻译： 通信装置包括用于在正常业务信道抢占期间减少文本电话信息丢失的机制。 通信装置包括发射机，其可以生成包括多个文本电话符号的信号，用于经由语音信道传输。 发射机可以接收指示通过语音信道发送的信息的控制信息的通知。 响应于接收到通知，发射机可以进一步选择性地防止多个文本电话符号的至少一部分被提供用于传输。