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1. 发明授权

US09426268B2 Method and apparatus for gauge identification based on single ended line testing (SELT) 有权
标题翻译：基于单线测试（SELT）的仪表识别方法和设备
公开(公告)号：US09426268B2
公开(公告)日：2016-08-23
申请号：US14807233
申请日：2015-07-23
申请人： IKANOS COMMUNICATIONS, INC.
发明人： Behzad Ahmadi , Robin Levonas , Vipin Pathak
IPC分类号： H04M1/24 , H04M3/08 , H04M3/22 , G01R31/11 , H04M3/30
CPC分类号： H04M1/24 , G01R31/11 , H04M3/306
摘要： The present invention relates generally to characterizing loops in a communication system, and more particularly to methods and apparatuses for loop gauge identification. In accordance with certain aspects, embodiments of the invention extract some information from the SELT signal. From SELT, the loop impedance, or equivalently input impedance, is determined. This information is then used for gauge identification.
摘要翻译：本发明一般涉及在通信系统中表征环路，更具体地，涉及用于环路规识别的方法和装置。根据某些方面，本发明的实施例从SELT信号中提取一些信息。从SELT，确定回路阻抗或等效输入阻抗。然后将此信息用于仪表识别。

2. 发明授权

US09426283B2 Method and apparatus of optimizing an xDSL transceiver configuration using single ended line test (SELT) measurement 有权
标题翻译：使用单端测试（SELT）测量优化xDSL收发器配置的方法和设备
公开(公告)号：US09426283B2
公开(公告)日：2016-08-23
申请号：US14671516
申请日：2015-03-27
申请人： IKANOS COMMUNICATIONS, INC.
发明人： Robin Levonas , Vipin Pathak , Arnold Muralt
IPC分类号： H04M1/24 , H04M3/08 , H04M3/22 , H04M3/30 , H04M3/32
CPC分类号： H04M3/306 , H04M3/32
摘要： The present invention relates to a method by which an xDSL modem can be properly connected and/or optimally tuned to achieve a desired performance goal based on knowledge obtained by first performing a SELT test and then post-processing the results of that test. In embodiments, the processed SELT results are used to detect bad connections or other anomalies such as split pairs. In embodiments, the processed SELT results are used to configure programmable components and filters in the analog front end in a manner that achieves the performance goal. In these and other embodiments, the performance goal is to maximize the attainable data rate. As such, through various hardware design options and configurations according to the invention, the performance of the modem can be tuned such that even in the presence of undesirable loop characteristics, adequate, or even good performance, can be achieved.
摘要翻译：本发明涉及一种方法，通过该方法，可以基于通过首先执行SELT测试获得的知识，然后对该测试的结果进行后处理，可以适当地连接和/或优化调整xDSL调制解调器，从而实现期望的性能目标。在实施例中，经处理的SELT结果用于检测不良连接或其他异常，例如分裂对。在实施例中，经处理的SELT结果用于以实现性能目标的方式在模拟前端配置可编程组件和滤波器。在这些和其他实施例中，性能目标是使可获得的数据速率最大化。因此，通过根据本发明的各种硬件设计选项和配置，调制解调器的性能可被调整为使得即使在存在不期望的环路特性的情况下，也可以实现足够或甚至良好的性能。

3. 发明授权

US09185204B2 Method and apparatus for designing an improved transmit signal for use in a single ended line test (SELT) 有权
标题翻译：用于设计用于单端测试（SELT）的改进的发射信号的方法和装置
公开(公告)号：US09185204B2
公开(公告)日：2015-11-10
申请号：US14339862
申请日：2014-07-24
申请人： IKANOS COMMUNICATIONS, INC.
发明人： Robin Levonas , Vipin Pathak
IPC分类号： H04M1/24 , H04M3/08 , H04M3/22 , H04M3/30
CPC分类号： H04M3/2209 , H04B3/46 , H04M3/306
摘要： The present invention relates to methods and apparatuses of using a novel transmit signal that can be used to improve performance of various loop diagnostic features of SELT. In embodiments, a novel transmit signal uses a wide contiguous band of tones that includes frequencies in both upstream and downstream bands. In these and other embodiments of the invention, the SELT transmit signal is designed such that any crosstalk noise in adjacent lines appears as a burst of noise that falls within the limits of the FEC settings of the system such that it can be fully corrected without harming the performance of modems connected on the adjacent lines.
摘要翻译：本发明涉及使用可用于提高SELT的各种环路诊断特征的性能的新型发射信号的方法和装置。在实施例中，新颖的发射信号使用包括上行和下行频带中的频率的宽连续频带。在本发明的这些和其他实施例中，SELT发送信号被设计成使得相邻行中的任何串扰噪声显示为落在系统的FEC设置的限制内的噪声突发，使得其可以在不损害的情况下被完全校正连接在相邻线路上的调制解调器的性能。

4. 发明授权

US09100507B2 Customer premise SELT based method for detecting the presence of a micro-filter on a VDSL connection 有权
标题翻译：客户端提供基于SELT的方法，用于检测VDSL连接上微滤器的存在
公开(公告)号：US09100507B2
公开(公告)日：2015-08-04
申请号：US14069831
申请日：2013-11-01
申请人： IKANOS COMMUNICATIONS, INC.
发明人： Robin Levonas
IPC分类号： H04M1/24 , H04M3/08 , H04M3/22 , H04M11/06
CPC分类号： H04M11/062 , H04M3/306
摘要： The present invention relates generally to a customer premises based method for detecting the presence of a micro-filter on a VDSL connection. According to certain aspects, the method uses SELT test signals that are transmitted from the customer premises modem and whose associated echo signals are received and analyzed by the customer premises modem. According to further aspects, specific characteristics of several different SELT signals are utilized to robustly and effectively determine the presence or absence of the micro-filter/splitter.
摘要翻译：本发明一般涉及一种用于检测VDSL连接上微滤器的存在的基于客户端的方法。根据某些方面，该方法使用从客户住宅调制解调器发送的SELT测试信号，并且其客户驻地调制解调器接收和分析其相关联的回波信号。根据另外的方面，利用几种不同的SELT信号的特征来鲁棒地且有效地确定微滤器/分离器的存在与否。

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