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1. 发明授权

US08428224B2 Method for transmission line analysis 有权
标题翻译：传输线分析方法
公开(公告)号：US08428224B2
公开(公告)日：2013-04-23
申请号：US12988314
申请日：2008-04-23
申请人： Antoni Fertner , Per Ola Börjesson , Klas Ericson
发明人： Antoni Fertner , Per Ola Börjesson , Klas Ericson
IPC分类号： H04M1/24 , H04M3/08 , H04M3/22
CPC分类号： H04B3/46
摘要： The present invention concerns methods for estimating one or more transmission properties of a telecommunications transmission line. Estimates of the line input impedance, Zin at a frequency ƒ, and the line capacitance Ĉ are made. An estimate is then made in dependence of Ĉ, the frequency ƒ and a value Γ, where Γ satisfies the relationship Γ coth (Γ)=Zin·jωĈ, and ω=2πƒ. Accuracy may be improved by least squares fitting a curve to a set of intermediate values and then generating an estimate from the coefficients of the curve.
摘要翻译：本发明涉及用于估计电信传输线路的一个或多个传输特性的方法。进行线路输入阻抗的估计，频率f的Zin和线路电容C。然后根据C，频率f和值Gamma进行估计，其中Gamma满足关系Gamma coth（Gamma）= Zin·jomegaC，ω= 2pif。可以通过将曲线拟合到一组中间值然后从曲线的系数生成估计值的最小二乘法来提高精度。

2. 发明授权

US08290122B2 Method and device for estimating properties of a telecommunication transmission line 有权
标题翻译：用于估计电信传输线路性质的方法和装置
公开(公告)号：US08290122B2
公开(公告)日：2012-10-16
申请号：US12091314
申请日：2005-10-27
申请人： Stefan Allevad , Per Ödling , Antoni Fertner , Henrik Back , Fredrik Lindqvist , Per Ola Börjesson , Jaume Rius i Riu
发明人： Stefan Allevad , Per Ödling , Antoni Fertner , Henrik Back , Fredrik Lindqvist , Per Ola Börjesson , Jaume Rius i Riu
IPC分类号： H04M1/24 , H04M3/08 , H04M3/22
CPC分类号： H04B3/46
摘要： A method and device for estimating one or more transmission properties of a telecommunication transmission line. At least one signal is sent on the line, the at least one signal including at least two frequencies for which the absolute value of the line propagation constant times the line length is less than π, and a resulting signal is received. An estimate of at least one transmission line property is then determined by examining the relationship between the sent and resulting signal or signals. The process may be repeated, if necessary. The estimate determination may also be repeated one or more times, with each successive estimate preferably using for the determination only those frequencies for which, as previously estimated, the absolute value of the line propagation constant times the line length is less than π.
摘要翻译：一种用于估计电信传输线的一个或多个传输特性的方法和装置。在该线上发送至少一个信号，所述至少一个信号包括线路传播常数的绝对值乘以线路长度的至少两个频率小于＆pgr，并且接收到所得到的信号。然后，通过检查所发送和产生的信号或信号之间的关系来确定至少一个传输线属性的估计。如果需要，可以重复该过程。估计确定也可以重复一次或多次，其中优选地使用每个连续估计仅用于确定如前所述的线路传播常数的绝对值乘以线长度的频率小于＆pgr的那些频率。

3. 发明授权

US07395162B2 Load coil detection and localization 有权
标题翻译：负载线圈检测和定位
公开(公告)号：US07395162B2
公开(公告)日：2008-07-01
申请号：US11276599
申请日：2006-03-07
申请人： Antoni Fertner , Fredrik Lindqvist , Per Ola Börjesson
发明人： Antoni Fertner , Fredrik Lindqvist , Per Ola Börjesson
IPC分类号： G06F19/00
CPC分类号： H04M3/306 , H04M3/2209
摘要： A method is described herein that can be used to detect the presence of a load coil within a transmission line. The method can also be used to determine the number of load coil(s) present within the transmission line. In addition, the method can be used to determine the distance to the first load coil.
摘要翻译：本文描述了可用于检测传输线内的负载线圈的存在的方法。该方法还可以用于确定传输线内存在的负载线圈的数量。此外，该方法可用于确定到第一负载线圈的距离。

4. 发明授权

US09470729B2 Transmission line parameter determination 有权
标题翻译：传输线参数确定
公开(公告)号：US09470729B2
公开(公告)日：2016-10-18
申请号：US14110215
申请日：2011-04-08
申请人： Fredrik Lindqvist , Per Ola Börjesson , Antoni Fertner
发明人： Fredrik Lindqvist , Per Ola Börjesson , Antoni Fertner
IPC分类号： G01R27/02 , H04B3/466
CPC分类号： G01R27/02 , H04B3/466
摘要： The present disclosure relates to determining parameters in a model of a transmission line. For determining the parameters, reflection coefficient defining data and the total capacitance of the transmission line are obtained. Further, true reflection coefficients obtained through the reflection coefficient defining data are applied in an objective function for the line. The objective function for the line is a sum of error signals and each error signal is the difference between a model value of a reflection coefficient and a corresponding true reflection coefficient. Further, the objective function is minimized by utilizing gradients of the objective function with respect to the transmission line parameters to be determined. A capacitive length is employed and at least two further transmission line parameters are determined as combinations of a basic resistive transmission line parameter, a basic capacitive transmission line parameter and a basic inductive transmission line parameter of the transmission line model.
摘要翻译：本公开涉及确定传输线的模型中的参数。为了确定参数，获得反射系数定义数据和传输线的总电容。此外，通过反射系数定义数据获得的真实反射系数被应用于该行的目标函数中。线的目标函数是误差信号的和，每个误差信号是反射系数的模型值和相应的真实反射系数之间的差。此外，通过利用待确定的传输线参数的目标函数的梯度来最小化目标函数。使用电容长度，并且将至少两个另外的传输线参数确定为传输线模型的基本电阻传输线参数，基本电容传输线参数和基本感应传输线参数的组合。

5. 发明授权

US08385510B2 Method for transmission line analysis 有权
标题翻译：传输线分析方法
公开(公告)号：US08385510B2
公开(公告)日：2013-02-26
申请号：US13129555
申请日：2009-11-27
申请人： Miguel Berg , Daniel Cederholm , Klas Ericson , Per Ola Börjesson
发明人： Miguel Berg , Daniel Cederholm , Klas Ericson , Per Ola Börjesson
IPC分类号： H04M1/24 , H04M3/08 , H04M3/22
CPC分类号： H04B3/46 , H04M3/306 , H04M11/062
摘要： A FDR SELT measurement is made in a stop band of a DSL band plan, using a PSD allowed by the PSD mask. Further measurements may also be made in an adjacent pass band and further bands, and the results combined to create a wide-band measurement result. When transformed into the time domain (e.g. by inverse Fourier transform to produce the line impulse response) greater resolution in time (and hence greater spatial resolution) is achieved. In order to compensate for AGC calibration errors measurements using different AGC steps may be scaled to fit smoothly to each other. If measurements overlap, measurement results in the region of overlap may be combined in various ways to limit the influence of noise and to create a smooth transition from one measurement to the next.
摘要翻译：使用PSD掩模允许的PSD，在DSL频段计划的停止频段进行FDR SELT测量。还可以在相邻通带和另外的带中进行进一步测量，并且结果组合以产生宽带测量结果。当变换到时域（例如通过逆傅立叶变换产生线脉冲响应）时，可以获得更高的时间分辨率（因此更大的空间分辨率）。为了补偿AGC校准误差，使用不同AGC步长的测量可以被缩放以相互平滑地相配合。如果测量重叠，重叠区域中的测量结果可以以各种方式组合，以限制噪声的影响并创建从一个测量到下一个测量的平滑过渡。

6. 发明授权

US07069165B2 Method and arrangement for signal loop test 有权
公开(公告)号：US07069165B2
公开(公告)日：2006-06-27
申请号：US10840820
申请日：2004-05-07
申请人： Jonas Gustafsson Rosenberg , Fredrik Lindqvist , Adam Wiå , Antoni Fertner , Axel Frank Jensen , Per Ola Börjesson , Per Ödling
发明人： Jonas Gustafsson Rosenberg , Fredrik Lindqvist , Adam Wiå , Antoni Fertner , Axel Frank Jensen , Per Ola Börjesson , Per Ödling
IPC分类号： G01D18/00 , G01D3/00 , G01R15/00
CPC分类号： G01R27/04 , H04B3/46 , H04M1/24 , H04M3/305 , H04M3/306
摘要： The invention refers to single-ended test of a loop with the aid of a transceiver, wherein an input impedance (Zin(ƒ)) of the loop is generated. The transceiver has a digital part, a codec and an analog part and is connected to the loop. With the aid of a transmitted and a reflected broadband signal (vin, vout) an echo transfer function Hecho(ƒ)=V(f)out/Vin(f) is generated, which also can be expressed as H echo ⁡ ( f ) = H ∞ ⁡ ( f ) ⁢ Z in ⁡ ( f ) + Z h0 ⁡ ( f ) Z in ⁡ ( f ) + Z hyb ⁡ ( f ) . Here Zh0(ƒ), Zhyb(ƒ) and H∞(ƒ) are model values for the transceiver. In a calibration process a test transceiver, with the same type of hardware as the transceiver, is connected to known impedances, replacing the loop. Hecho(ƒ)=V(f)out/Vin(f) is generated for the known impedances and the model values are generated and are stored in a memory in the transceiver. The stored model values are then used when the input impedance (Zin(ƒ)) for the loop is generated after a measurement of the broadband signal (Vin, vout) is performed.

7. 发明授权

US09191130B2 Multi-carrier method in a measurement device 有权
标题翻译：多载波方法在测量设备中
公开(公告)号：US09191130B2
公开(公告)日：2015-11-17
申请号：US14368843
申请日：2012-01-05
申请人： Miguel Berg , Antoni Fertner , Daniel Cederholm , Per Ola Börjesson
发明人： Miguel Berg , Antoni Fertner , Daniel Cederholm , Per Ola Börjesson
IPC分类号： H04B3/46 , H04B17/00 , H04B17/30 , H04L27/26
CPC分类号： H04B17/30 , H04B3/46 , H04L27/2601 , H04L27/2627
摘要： The invention relates to a multi-carrier method in a measurement device for improving reach of a measurement, said method comprising: transmitting a first signal in a sequence, measuring a response to said first signal, calculating a first transfer function for frequency of each modulated subcarrier in the first signal, transmitting a second signal of the sequence, wherein at least one subcarrier in the second signal has modulation different from that of the subcarriers in the first signal, measuring a response to said second signal, calculating a second transfer function for frequency of each modulated subcarrier in the second signal, said second transfer function comprising for each frequency a thereto associated second distortion component, calculating a mean value of all first and second transfer functions. The invention further relates to a measurement device for performing said method.
摘要翻译：本发明涉及一种用于提高测量范围的测量装置中的多载波方法，所述方法包括：按顺序发送第一信号，测量对所述第一信号的响应，计算每个调制的频率的第一传递函数发送所述序列的第二信号，其中所述第二信号中的至少一个子载波具有与所述第一信号中的子载波不同的调制，测量对所述第二信号的响应，计算第二传递函数，所述第二传递函数包括针对每个频率a与其相关联的第二失真分量，计算所有第一和第二传递函数的平均值。本发明还涉及一种用于执行所述方法的测量装置。

8. 发明申请

US20150180596A1 MULTI-CARRIER METHOD IN A MEASUREMENT DEVICE 有权
标题翻译：测量装置中的多载波方法
公开(公告)号：US20150180596A1
公开(公告)日：2015-06-25
申请号：US14368843
申请日：2012-01-05
申请人： Miguel Berg , Antoni Fertner , Daniel Cederholm , Per Ola Börjesson
发明人： Miguel Berg , Antoni Fertner , Daniel Cederholm , Per Ola Börjesson
IPC分类号： H04B17/30 , H04L27/26
CPC分类号： H04B17/30 , H04B3/46 , H04L27/2601 , H04L27/2627
摘要： The invention relates to a multi-carrier method in a measurement device for improving reach of a measurement, said method comprising: transmitting a first signal in a sequence, measuring a response to said first signal, calculating a first transfer function for frequency of each modulated subcarrier in the first signal, transmitting a second signal of the sequence, wherein at least one subcarrier in the second signal has modulation different from that of the subcarriers in the first signal, measuring a response to said second signal, calculating a second transfer function for frequency of each modulated subcarrier in the second signal, said second transfer function comprising for each frequency a thereto associated second distortion component, calculating a mean value of all first and second transfer functions. The invention further relates to a measurement device for performing said method.
摘要翻译：本发明涉及一种用于提高测量范围的测量装置中的多载波方法，所述方法包括：按顺序发送第一信号，测量对所述第一信号的响应，计算每个调制的频率的第一传递函数发送所述序列的第二信号，其中所述第二信号中的至少一个子载波具有与所述第一信号中的子载波不同的调制，测量对所述第二信号的响应，计算第二传递函数，所述第二传递函数包括针对每个频率a与其相关联的第二失真分量，计算所有第一和第二传递函数的平均值。本发明还涉及一种用于执行所述方法的测量装置。

9. 发明申请

US20130158922A1 ESTIMATION OF A QUANTITY RELATED TO IMPEDANCE 审中-公开
标题翻译：估计与阻碍相关的数量
公开(公告)号：US20130158922A1
公开(公告)日：2013-06-20
申请号：US13331200
申请日：2011-12-20
申请人： Antoni Fertner , Henrik Almeida , Miguel Berg , Per Ola Börjesson , Klas Ericson , Fredrik Lindqvist
发明人： Antoni Fertner , Henrik Almeida , Miguel Berg , Per Ola Börjesson , Klas Ericson , Fredrik Lindqvist
IPC分类号： G06F19/00 , G01R27/02
CPC分类号： H04B3/46
摘要： Method, arrangement and network node/device for estimating a quantity related to impedance in a first frequency interval, D1, of a telecommunication transmission line where the transmission line has a length d. The method involves determining a quantity related to impedance of the telecommunication transmission line for at least two frequencies, f1D2 and f2D2, in a second frequency interval D2. The frequencies f1D2 and f2D2 should fulfil the condition that the line length d times the absolute value of the difference between a line propagation constant γ(f1)D2 and a line propagation constant, γ(f2)D2, is less than π, i.e. abs(d*γ(f1)D2−d*γ(f2)D2)
摘要翻译：用于估计传输线具有长度d的电信传输线的第一频率间隔D1中与阻抗相关的量的方法，布置和网络节点/设备。所述方法包括在第二频率间隔D2中确定与至少两个频率f1D2和f2D2的电信传输线路的阻抗有关的数量。频率f1D2和f2D2应满足线路长度d乘以线路传播常数γ（f1）D2与线路传播常数γ（f2）D2之差的绝对值小于pi的条件，即abs （d * gamma（f1）D2-d * gamma（f2）D2）

10. 发明申请

US20110261932A1 METHOD FOR TRANSMISSION LINE ANALYSIS 有权
标题翻译：传输线分析方法
公开(公告)号：US20110261932A1
公开(公告)日：2011-10-27
申请号：US13129555
申请日：2009-11-27
申请人： Miguel Berg , Daniel Cederholm , Klas Ericson , Per Ola Börjesson
发明人： Miguel Berg , Daniel Cederholm , Klas Ericson , Per Ola Börjesson
IPC分类号： H04M3/22
CPC分类号： H04B3/46 , H04M3/306 , H04M11/062
摘要： A FDR SELT measurement is made in a stop band of a DSL band plan, using a PSD allowed by the PSD mask. Further measurements may also be made in an adjacent pass band and further bands, and the results combined to create a wide-band measurement result. When transformed into the time domain (e.g. by inverse Fourier transform to produce the line impulse response) greater resolution in time (and hence greater spatial resolution) is achieved. In order to compensate for AGC calibration errors measurements using different AGC steps may be scaled to fit smoothly to each other. If measurements overlap, measurement results in the region of overlap may be combined in various ways to limit the influence of noise and to create a smooth transition from one measurement to the next.
摘要翻译：使用PSD掩模允许的PSD，在DSL频段计划的停止频段进行FDR SELT测量。还可以在相邻通带和另外的带中进行进一步测量，并且结果组合以产生宽带测量结果。当变换到时域（例如通过逆傅立叶变换产生线脉冲响应）时，可以获得更高的时间分辨率（因此更大的空间分辨率）。为了补偿AGC校准误差，使用不同AGC步长的测量可以被缩放以相互平滑地相配合。如果测量重叠，重叠区域中的测量结果可以以各种方式组合，以限制噪声的影响并创建从一个测量到下一个测量的平滑过渡。

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