| 发明名称 |
METHODS AND APPARATUSES FOR CHARACTERIZING COMMON MODE NOISE AND ESTIMATING LOOP IMBALANCE |
| 摘要 |
The present invention relates generally to addressing performance issues in xDSL communication systems, and more particularly to methods and apparatuses to measure and characterize CM noise impacting a DSL line in a customer premises, measurements and characterization of the projection of these CM signals in Differential Mode (DM), and finally a derivation of an estimate of the loop balance. |
| 申请公布号 |
US2015244419(A1) |
申请公布日期 |
2015.08.27 |
| 申请号 |
US201514629115 |
申请日期 |
2015.02.23 |
| 申请人 |
IKANOS COMMUNICATIONS, INC. |
发明人 |
ALLOIN Laurent Francis;MAY James T. Schley;MURALT Arnold;CHAPALA Vinay Kumar |
| 分类号 |
H04B3/487;H04B3/32 |
主分类号 |
H04B3/487 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method comprising:
sensing a common mode (CM) signal corresponding to a noise source affecting a twisted pair; sensing a differential mode (DM) signal also corresponding to the noise source of the CM signal; deriving a ratio between the sensed CM signal and sensed DM signal, both corresponding to the noise source; and representing a loop imbalance of the twisted pair with the derived ratio. |
| 地址 |
Fremont CA US |
