公开(公告)号：US20140036980A1

公开(公告)日：2014-02-06

申请号：US14050587

申请日：2013-10-10

Applicant: AWARE, INC.

Inventor： Christopher CUNNINGHAM

IPC: H04B3/21 ,  H04B3/46

CPC classification number: H04B3/21 ,  H04B3/46 ,  H04L1/20 ,  H04L27/2601 ,  H04M11/062

Abstract: To assist with the detection of unfiltered device(s), a system observes how the received noise changes between two links as the transmit signal is changed. Harmful unfiltered nonlinear devices will generate significant noise that depends on the transmitted signals; therefore, this additional noise can be quantified to some extent by comparing the observed noise for two different transmit signals. The total noise can be determined from the SNR if the received signal is known. The received signal may be read directly in some non-standard systems, or it may be determined from the known transmit signal and channel attenuation, which is sometimes the case in standard-compliant links, but often with a relatively large error. To circumvent this problem, certain embodiments of this invention only consider the change in noise between two links with the same channel attenuation. This differential comparison makes it unnecessary to accurately know the channel attenuation.

Abstract translation: 为了帮助检测未过滤的设备，系统观察发射信号改变时两个链路之间的接收噪声如何变化。 有害的未过滤非线性器件将产生依赖于传输信号的显着噪声; 因此，通过比较两个不同发射信号的观测噪声，可以在一定程度上量化这种附加噪声。 如果接收到的信号是已知的，则可以从SNR确定总噪声。 可以在一些非标准系统中直接读取所接收的信号，或者可以从已知的发射信号和信道衰减来确定，这在标准兼容链路中有时是这种情况，但是通常具有相对较大的误差。 为了避免这个问题，本发明的某些实施例仅考虑具有相同信道衰减的两个链路之间的噪声变化。 该差分比较使得无需准确地知道信道衰减。

公开(公告)号：US20140269876A1

公开(公告)日：2014-09-18

申请号：US14286710

申请日：2014-05-23

Applicant: AWARE, INC.

Inventor： Christopher CUNNINGHAM ,  Jianming ZHU

IPC: H04B17/00

CPC classification number: H04B17/336 ,  H04B3/48 ,  H04L12/2898 ,  H04L41/0631 ,  H04L41/0677 ,  H04L2012/6478 ,  H04M3/085 ,  H04M3/304 ,  H04M3/306 ,  H04M2201/12

Abstract: A modem or associated computing or testing device is configured to detect the presence of one or more faults that affect DSL communications, and upon their detection, generate, for example, an indication, communication or message that recommends corrective action. In this context, a fault is generally caused by one or more unfiltered devices, impulsive noises, malfunctioning modems, or other factor that does not affect measured attenuation or measured noise, but does affect the signal-to-noise ratio (SNR) of the link. In addition to being able to generate a message guiding a user through corrective action, the system can estimate the rate impact of the detected fault.

Abstract translation: 调制解调器或相关联的计算或测试设备被配置为检测影响DSL通信的一个或多个故障的存在，并且在它们的检测时，生成例如建议纠正动作的指示，通信或消息。 在这种情况下，故障通常由一个或多个未滤波的设备，脉冲噪声，故障调制解调器或不影响测量的衰减或测量的噪声的其他因素引起，但是确实影响了信噪比（SNR） 链接。 除了能够通过纠正措施产生指导用户的消息之外，系统还可以估计检测到的故障的速率影响。

公开(公告)号：US20140086295A1

公开(公告)日：2014-03-27

申请号：US14092484

申请日：2013-11-27

Applicant: AWARE, INC.

Inventor： Christopher CUNNINGHAM ,  Jianming ZHU

IPC: H04B17/00

CPC classification number: H04B17/336 ,  H04B3/48 ,  H04L12/2898 ,  H04L41/0631 ,  H04L41/0677 ,  H04L2012/6478 ,  H04M3/085 ,  H04M3/304 ,  H04M3/306 ,  H04M2201/12

Abstract: A modem or associated computing or testing device is configured to detect the presence of one or more faults that affect DSL communications, and upon their detection, generate, for example, an indication, communication or message that recommends corrective action. In this context, a fault is generally caused by one or more unfiltered devices, impulsive noises, malfunctioning modems, or other factor that does not affect measured attenuation or measured noise, but does affect the signal-to-noise ratio (SNR) of the link. In addition to being able to generate a message guiding a user through corrective action, the system can estimate the rate impact of the detected fault.