公开(公告)号：US09042498B2

公开(公告)日：2015-05-26

申请号：US14058129

申请日：2013-10-18

Applicant: IKANOS COMMUNICATIONS, INC.

Inventor： Laurent Francis Alloin ,  Pravesh Biyani ,  Laurent Pierrugues ,  S. M. Zafaruddin ,  Chapala Vinay Kumar

IPC: H04B1/10 ,  H04L25/02 ,  H04L25/03 ,  H04B3/50

CPC classification number: H04B1/10 ,  H04B3/50 ,  H04L25/0256 ,  H04L25/0276 ,  H04L25/03878 ,  H04L2025/03414 ,  H04L2025/03522

Abstract: In general, the present invention provides methods and apparatuses for exploiting the extra degree of freedom provided by the sensing of the CM signal along with the DM signal at the receiver end of a wireline communication system. According to certain aspects, this extra degree of freedom can be used to cancel alien noises at the receiver in both upstream downstream directions. According to further aspects, a CM channel can be potentially used to exploit the diversity created in the CM channel along with the regular DM channel. This acts as the motivation for employing a diversity receiver scheme at the receiver, especially in downstream communications received at a Customer Premises.

Abstract translation: 通常，本发明提供了用于利用在有线通信系统的接收机端处检测CM信号以及DM信号所提供的额外自由度的方法和装置。 根据某些方面，这种额外的自由度可以用于在两个上游下游方向上消除接收机处的外来噪声。 根据另外的方面，可以潜在地使用CM信道来利用在CM信道中创建的分集以及常规的DM信道。 这充当在接收机上采用分集接收机方案的动机，特别是在客户端接收的下行通信中。

公开(公告)号：US20160365999A1

公开(公告)日：2016-12-15

申请号：US15207211

申请日：2016-07-11

Applicant: Ikanos Communications, Inc.

Inventor： Pravesh Biyani ,  S. M. Zafaruddin ,  Laurent Pierrugues ,  Laurent Francis Alloin

IPC: H04L27/26 ,  H04B1/10 ,  H04M3/18

CPC classification number: H04L27/265 ,  H04B1/1036 ,  H04B15/00 ,  H04L2012/6478 ,  H04M3/18 ,  H04M11/06 ,  H04M11/062

Abstract: The present invention generally relates to an impulse noise canceller for DSL systems. According to certain aspects, embodiments of the invention provide a dual sensor receiver to deal with the impulse noise effectively. The second sensor can be incorporated by either a common mode or unused differential port. Alternatively a power line sensor can also act as a sensor. According to certain additional aspects, embodiments of the invention provide various alternative implementations of an impulse noise canceller within a DSL receiver. According to still further aspects, embodiments of the invention provide methods for selectively training an impulse noise canceller in the various implementations.

Abstract translation: 本发明一般涉及DSL系统的脉冲噪声消除器。 根据某些方面，本发明的实施例提供了一种双传感器接收器来有效地处理脉冲噪声。 第二个传感器可以通过共模或未使用的差分端口并入。 或者，电力线传感器也可以用作传感器。 根据某些附加方面，本发明的实施例提供DSL接收机内的脉冲噪声消除器的各种替代实现。 根据另外的方面，本发明的实施例提供了用于在各种实现中选择性地训练脉冲噪声消除器的方法。