发明名称 |
APPARATUS, SYSTEMS AND METHODS OF COMMON-MODE REJECTION RATIO BASED DIAGNOSTICS |
摘要 |
In accordance with embodiments disclosed herein, there are provided apparatus, systems and methods for detecting a boundary condition via common mode diagnostics; and to apparatus, systems and methods for detecting a fault condition via common-mode rejection ratio diagnostics. For example, in one embodiment such means include, means for injecting differential mode signal probes onto two conductors of a Digital Subscriber Line (DSL line); means for measuring a common-mode rejection ratio (CMRR) of the differential mode signal probes; means for measuring impedance of the differential mode signal probes; and means for identifying which of an asymmetric fault condition or a symmetric fault condition is present on the line based on both: (a) the measured CMRR of the differential mode signal probes and (b) the measured impedance of the differential mode signal probes. |
申请公布号 |
US2015043720(A1) |
申请公布日期 |
2015.02.12 |
申请号 |
US201214384368 |
申请日期 |
2012.03.12 |
申请人 |
Hwang Chan-Soo;Moyer Geoffrey G.;Flowers Mark B.;Mohseni Mehdi |
发明人 |
Hwang Chan-Soo;Moyer Geoffrey G.;Flowers Mark B.;Mohseni Mehdi |
分类号 |
H04L12/24;H04M3/30 |
主分类号 |
H04L12/24 |
代理机构 |
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代理人 |
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主权项 |
1. A method comprising:
injecting differential mode signal probes onto two conductors of a Digital Subscriber Line (DSL line); measuring a common-mode rejection ratio (CMRR) of the differential mode signal probes; measuring impedance of the differential mode signal probes; and identifying which of an asymmetric fault condition or a symmetric fault condition is present on the line based on both: (a) the measured CMRR of the differential mode signal probes and (b) the measured impedance of the differential mode signal probes. |
地址 |
Sunnyvale CA US |