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91. 发明申请

WO2004019501A2 METHODS FOR TRANSMITTING A WAVEFORM HAVING A CONTROLLABLE ATTENUATION AND PROPAGATION VELOCITY 审中-公开
标题翻译：传播具有可控衰减和传播速度的波形的方法
公开(公告)号：WO2004019501A2
公开(公告)日：2004-03-04
申请号：PCT/US2003/025979
申请日：2003-08-19
申请人： BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM , FLAKE, Robert, H. , BISKUP, John, F.
发明人： FLAKE, Robert, H. , BISKUP, John, F.
IPC分类号： H04B
CPC分类号： H04L25/12 , G01R31/088 , G01R31/11 , H04B3/462 , H04B3/466
摘要： Systems and methods are described for transmitting a waveform having a controllable attenuation and propagation velocity. An exemplary method comprises: generating an exponential waveform, the exponential waveform (a) being characterized by the equation V in = D e - A SD[ x-v SDt] , where D is a magnitude, V in is a voltage, t is time, A SD is an attenuation coefficient, and v SD is a propagation velocity; and (b) being truncated at a maximum value. An exemplary apparatus comprises: an exponential waveform generator; an input recorder coupled to an output of the exponential waveform generator; a transmission line under test coupled to the output of the exponential waveform generator; an output recorder coupled to the transmission line under test; an additional transmission line coupled to the transmission line under test; and a termination impedance coupled to the additional transmission line and to a ground.
摘要翻译：描述了用于发送具有可控衰减和传播速度的波形的系统和方法。一种示例性方法包括：产生指数波形，指数波形（a）由以下等式表征：V in = D e -sin- 其中D是一个幅度，V _{是一个幅度， in是电压，t是时间，A SD是衰减系数，并且v SD是传播速度; 和（b）以最大值截断。示例性设备包括：指数波形发生器; 耦合到指数波形发生器的输出的输入记录器; 耦合到指数波形发生器的输出的被测传输线; 耦合到被测传输线路的输出记录器; 与被测传输线耦合的附加传输线; 以及耦合到附加传输线和地面的终端阻抗。}

92. 发明申请

WO1993021696A1 ELECTRICAL NETWORK FOR EMULATING A TRANSMISSION LINE 审中-公开
标题翻译：用于仿真传输线的电气网络
公开(公告)号：WO1993021696A1
公开(公告)日：1993-10-28
申请号：PCT/GB1993000768
申请日：1993-04-13
申请人： FARADAY TECHNOLOGY LIMITED , BATY, David, Clive , MILES, Barry, Donald, Ruberry
发明人： FARADAY TECHNOLOGY LIMITED
IPC分类号： H04B03/40
CPC分类号： H04B3/40 , H04B3/466
摘要： An electrical network which emulates the transmission characteristics of the cable, allowing tests to be made as to the length by which a cable may be extended before cable degradation occurs. The preferred embodiment concerns emulating beldon 8281 coaxial cable, used for the transmission of serial digital video signals. A preferred embodiment comprises four sections, arranged to emulate 25 metres, 50 metres, 100 metres and 200 metres of cable.
摘要翻译：模拟电缆的传输特性的电网，允许测试电缆在电缆劣化发生之前延伸的长度。优选实施例涉及仿真用于传输串行数字视频信号的beldon 8281同轴电缆。优选实施例包括四个部分，其被布置成模拟25米，50米，100米和200米的电缆。

93. 发明申请

WO2014062967A8 METHOD AND APPARATUS FOR SENSING NOISE SIGNALS IN A WIRELINE COMMUNICATIONS ENVIRONMENT 审中-公开
标题翻译：用于在线通信环境中感知噪声信号的方法和装置
公开(公告)号：WO2014062967A8
公开(公告)日：2015-05-07
申请号：PCT/US2013065519
申请日：2013-10-17
申请人： IKANOS COMMUNICATIONS INC
发明人： ALLOIN LAURENT FRANCIS , KEASLER WILLIAM EDWARD JR , PIERRUGUES LAURENT , MURALT ARNOLD
IPC分类号： H04B3/46 , H04B3/32
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 l ines, 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.
摘要翻译：本发明涉及用于感测DSL系统中诸如客户端环境之类的有线通信环境中的噪声源的方法和装置。在实施例中，本发明包括附加传感器，其连接到DSL客户驻地环境中的电源，以便在其源处表征耦合到DSL内部的噪声和/或减轻其对DSL线路的影响。一个目标与诊断相关联，有助于更好地表征噪声信号本身，并导出从电力总机感测的信号及其可能投影到DSL线路上的相关性。另一个目标是利用这些电力线传感器信号来减轻或消除使其进入DSL线路的电力线噪声。示例性实施例还包括和利用来自附加次级传感器的信号，例如次级共模，差模和幻影模式传感器。

94. 发明申请

WO2011053212A2 AN ARRANGEMENT AND METHOD RELATING TO ANALYSIS OF TRANSMISSION LINES 审中-公开
标题翻译：关于传输线分析的安排和方法
公开(公告)号：WO2011053212A2
公开(公告)日：2011-05-05
申请号：PCT/SE2010/050015
申请日：2010-01-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , FERTNER, Antoni , BÖRJESSON, Per Ola , ERICSON, Klas , LINDQVIST, Fredrik , PAPPA, Ioanna , HÖST, Stefan , BERG, Miguel
发明人： FERTNER, Antoni , BÖRJESSON, Per Ola , ERICSON, Klas , LINDQVIST, Fredrik , PAPPA, Ioanna , HÖST, Stefan , BERG, Miguel
IPC分类号： H04B3/46
CPC分类号： H04B3/466 , H04M3/26
摘要： The present invention relates to an arrangement for analyzing transmission line properties. Measurement data providing means (10) provide data of a first frequency dependent line property, line property calculation arrangement (20) with model handling means (21A), a Hubert transform handler (22) and line property determination means (23) calculate said first property based on model parameters, line resistance at 0 frequency, roc r cut-off frequency, v, line capacitance C∞r and line inductance ∑^. The line model handling means (21A) calculates the line inductance L(J) via a Hubert transform of Q(f/v)r relating line resistance R(J) to roc such as formula (I). The Hilbert transform values are calculated using a parameterized closed form expression for the Hubert transform or they are tabulated. The line property determination means (23; 23A) calculates the first property and criteria function application means (40) uses the measured first property and the calculated first property for model parameters to find optimized numerical model parameter values.
摘要翻译：本发明涉及一种用于分析传输线路特性的装置。测量数据提供装置（10）提供具有模型处理装置（21A）的第一频率相关线路性质的线路性质计算装置（20），休伯特变换处理器（22）和线路特性确定装置（23）的数据，属性基于模型参数，0频率线路电阻，roc r截止频率，v，线路电容C8r和线路电感？^。线路模型处理装置（21A）经由与线路电阻R（J）相关的Q（f / v）r的休伯特变换到诸如公式（I）的roc来计算线路电感L（J）。希尔伯特变换值使用Hubert变换的参数化闭合形式表达式计算，或者列表。行特性确定装置（23; 23A）计算第一属性和标准函数应用装置（40）使用测量的第一属性和所计算的模型参数的第一属性来找到优化的数值模型参数值。

95. 发明申请

WO2009067898A1 线路测量方法以及测量装置审中-公开
公开(公告)号：WO2009067898A1
公开(公告)日：2009-06-04
申请号：PCT/CN2008/072974
申请日：2008-11-07
申请人：华为技术有限公司 , 张朋瑞
发明人：张朋瑞
IPC分类号： H04M3/30 , H04B3/46
CPC分类号： H04B3/466 , H04M3/306
摘要： A line measuring method comprises: the relational data of line length and phase circular value of insertion loss, and the relational data of line length and loop attenuation parameter of a first wire diameter line and a second wire diameter line in a fixed frequency are obtained; according to the phase circular value of insertion loss and the loop attenuation parameter of the measured wire diameter line, four length values are obtained from the relational data of line length and phase circular value of insertion loss and the relational data of line length and loop attenuation parameter, and the two length values under each parameter value define a length range, so that a first length range and a second length range are obtained; the middle point of the first length range is judged to approach which border of the second length range, the border that the middle point approaches is taken as the measured line length and the wire diameter corresponding to the line length value is taken as the measured wire diameter.

96. 发明申请

WO2006110849A2 CANCELLATION OF CROSSTALK ENERGY IN COMMUNICATION LOOPS 审中-公开
标题翻译：消除沟通能力中的通信能量
公开(公告)号：WO2006110849A2
公开(公告)日：2006-10-19
申请号：PCT/US2006013724
申请日：2006-04-11
申请人： NEWWIRE SYSTEMS INC , HOBBEL JAN C
发明人： HOBBEL JAN C
IPC分类号： H01R24/00
CPC分类号： H04B3/32 , G01R31/31708 , G01R31/31716 , H04B3/466 , H04L25/03878 , H04M3/304 , H04M3/34 , Y10S439/941
摘要： Systems and methods for reducing crosstalk are provided. In one implementation, a method is provided. The method includes applying a pilot signal to a disturber twisted pair and measuring near end crosstalk of a victim twisted pair. The coupling characteristics between the disturber and the victim twisted pair are determined. A far end crosstalk function is derived for estimating the far end crosstalk in the victim twisted pair using the determined coupling characteristics. A crosstalk reduction signal is determined using the estimated far end cross talk. The crosstalk reduction signal is injected into the victim twisted pair to reduce crosstalk in the victim twisted pair.
摘要翻译：提供了减少串扰的系统和方法。在一个实现中，提供了一种方法。该方法包括将导频信号应用于干扰双绞线并测量受扰双绞线的近端串扰。确定干扰器和受扰双绞线之间的耦合特性。导出远端串扰功能，用于使用确定的耦合特性估计受害双绞线中的远端串扰。使用估计的远端串扰来确定串扰降低信号。串扰降低信号被注入到受扰双绞线中以减少受扰双绞线中的串扰。

97. 发明申请

WO0167628A3 METHODS FOR TRANSMITTING A WAVEFORM HAVING A CONTROLLABLE ATTENUATION AND PROPAGATION VELOCITY 审中-公开
标题翻译：用于发送具有可控衰减和传播速度的波形的方法
公开(公告)号：WO0167628A3
公开(公告)日：2003-09-04
申请号：PCT/US0107172
申请日：2001-03-02
申请人： UNIV TEXAS , FLAKE ROBERT H
发明人： FLAKE ROBERT H
IPC分类号： H04L25/02 , H04B3/46 , H04B13/00 , H04L25/12 , G01N25/18
CPC分类号： H04L25/12 , H04B3/462 , H04B3/466
摘要： Methods for driving a lossy transmission media with an energy wave defined by a an exponential waveform function. The propagation delay and attenuation of the wave is a function of an exponential coefficient, and its propagation velocity is essentially constant and independent of displacement. Utilizing relationships between the propagation velocity, exponential coefficient, attenuation, and transmission line parameters, one may effectively model various transmission media. One may also determine unknown transmission line parameters, waveform exponential coefficients, attenuation, and/or propagation velocities by utilizing those relationships. By modulating the exponential coefficient, information may be encoded onto a waveform.
摘要翻译：用指数波形函数定义的能量波驱动有损传输介质的方法。波的传播延迟和衰减是指数系数的函数，其传播速度基本上是恒定的，与位移无关。利用传播速度，指数系数，衰减和传输线参数之间的关系，可以有效地建模各种传输介质。还可以通过利用这些关系来确定未知的传输线参数，波形指数系数，衰减和/或传播速度。通过调制指数系数，可以将信息编码到波形上。

98. 发明申请

WO2002100008A1 DYNAMIC DIGITAL COMMUNICATION SYSTEM CONTROL 审中-公开
标题翻译：动态数字通信系统控制
公开(公告)号：WO2002100008A1
公开(公告)日：2002-12-12
申请号：PCT/US2002/017117
申请日：2002-05-31
申请人： THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
发明人： GINIS, Georgios , YU, Wei , ZENG, Chaohuang , CIOFFI, John
IPC分类号： H04B15/00
CPC分类号： H04B1/1081 , H04B1/10 , H04B1/1027 , H04B3/32 , H04B3/46 , H04B3/466 , H04B3/487 , H04B15/00 , H04B2001/1045 , H04L5/0007 , H04L5/0037 , H04L5/0046 , H04L5/006 , H04L5/0094 , H04L7/0016 , H04L27/2608 , H04M11/062
摘要： Methods, apparatus and systems for dynamically controlling a digital communication system (7000) are disclosed. Line and signal characteristics device (716) collects information about digital communication lines in the system and adaptively and/or dynamically determines line and signal characteristics of the digital communication lines, including interference effects. Based on the determined characteristics and the desired performance parameters, operation of the digital communication lines is adjusted by communication adaptation (715) to improve or otherwise control the performance of the system (700).
摘要翻译：公开了用于动态控制数字通信系统的方法，装置和系统（7000）。线路和信号特征设备（716）收集关于系统中数字通信线路的信息，并且自适应地和/或动态地确定数字通信线路的线路和信号特性，包括干扰效应。基于确定的特性和期望的性能参数，通过通信适应（715）来调整数字通信线路的操作，以改善或以其它方式控制系统的性能（700）。

99. 发明申请

US20190181970A1 DECISION FEEDBACK EQUALIZATION CORRECTION OF EYE SCOPE MEASUREMENTS 审中-公开
公开(公告)号：US20190181970A1
公开(公告)日：2019-06-13
申请号：US16214009
申请日：2018-12-07
申请人： Kandou Labs, S.A.
发明人： Richard Simpson
IPC分类号： H04B17/364 , H04L7/00 , H04L1/00 , H04L25/02 , H04L7/04
CPC分类号： H04B17/364 , G06F11/322 , H04B3/466 , H04L1/0041 , H04L7/0012 , H04L7/041 , H04L25/028 , H04L25/0292 , H04L25/03057 , H04L25/063
摘要： Methods and systems are described for obtaining a plurality of BER-specific correction values by comparing a first set of BER values obtained by sampling, at a sampling instant near the center of a signaling interval, a non-DFE corrected received signal with a second set of BER values obtained by sampling a DFE-corrected received signal at the sampling instant. A set of eye-scope BER measurements are obtained, each eye-scope BER measurement having a sampling offset relative to the sampling instant, a voltage offset value representing a voltage offset applied to alter a decision threshold, and an eye-scope BER value. A set of DFE-adjusted eye-scope BER measurements are generated by using BER-specific correction values to adjust the voltage offset values of the eye-scope BER measurements.

100. 发明授权

US09991933B2 Attenuator and signal generator for stepwise attenuating a radio frequency signal 有权
公开(公告)号：US09991933B2
公开(公告)日：2018-06-05
申请号：US14714688
申请日：2015-05-18
申请人： Rohde & Schwarz GmbH & Co. KG
发明人： Simon Schmid
IPC分类号： H03H7/24 , H04B3/466
CPC分类号： H04B3/466 , H03H7/24 , H03H7/25
摘要： The invention relates to an attenuator for stepwise attenuating a radio frequency signal. The attenuator comprises a first attenuation module that is configured to stepwise attenuate a radio frequency signal within a first signal frequency range. The attenuator comprises a second attenuation module that is configured to stepwise attenuate a radio frequency signal with a second signal frequency range, wherein the second attenuation module is arranged in parallel to the first attenuation module. The attenuator further comprises a switching element, wherein the switching element switches either the first attenuation module or the second attenuation module to an output node of the attenuator.

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