| 发明名称 |
NON-INVASIVE DIAGNOSTIC TRANSMISSION LINE TESTING |
| 摘要 |
A probing signal transmitted on a twisted pair telephone line in a DSL system is reflected and received at a DSL device. An estimate of one of a DSL data transmission signal or DSL synch symbol transmission signal is removed from the received probing signal to recover the reflected probing signal. The recovered reflected probing signal is processed to determine characteristics information of the twisted pair telephone line. |
| 申请公布号 |
US2014334609(A1) |
申请公布日期 |
2014.11.13 |
| 申请号 |
US201414341659 |
申请日期 |
2014.07.25 |
| 申请人 |
Flowers Mark B.;Brady Mark H.;Goldburg Marc;Mallory Mark P.;Tehrani Ardavan Maleki |
发明人 |
Flowers Mark B.;Brady Mark H.;Goldburg Marc;Mallory Mark P.;Tehrani Ardavan Maleki |
| 分类号 |
H04M3/30;H04M11/06 |
主分类号 |
H04M3/30 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method comprising:
receiving a signal reflected on a twisted pair telephone line at a DSL device; estimating a reflected probing signal in the received reflected signal, using an adaptive filter; removing the estimated reflected probing signal from the received reflected signal; and processing the adaptive fitter to determine characteristics information of the twisted pair telephone line. |
| 地址 |
Los Gatos CA US |
