发明名称 |
PHANTOM USE IN DSL SYSTEM |
摘要 |
Superimposing phantom-mode signals reinforces existing differentially driven DSL downstream signals in a vectored binder of DSLs or reinforces upstream vectored signals in a binder of differentially excited twisted pairs, thus expanding the extra transmission modes of the previous GDSL multi-wire two-sided-excitation invention to the case where coordination can only occur on one-side of the binder. Each pair is treated as a common-mode antenna with respect to earth ground, with some pairs selectively excited at the transformer center tap at the transmit end with respect to a common (earth or chassis) ground reference. Corresponding receivers on other non-excited pairs sense the signals between their center taps and a ground at the opposite ends of the lines to the exciting transmitters. A dual use with hybrid circuits allows the receiving circuit to also have an upstream transmitter and an upstream-sensing receiver on the center tap of the opposite side of an adjacent wire.
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申请公布号 |
US2011051593(A1) |
申请公布日期 |
2011.03.03 |
申请号 |
US20100853209 |
申请日期 |
2010.08.09 |
申请人 |
ADAPTIVE SPECTRUM AND SIGNAL ALIGNMENT, INC. |
发明人 |
CIOFFI JOHN M.;LEE BIN;RHEE WONJONG;GINIS GEORGIOS |
分类号 |
H04L5/20 |
主分类号 |
H04L5/20 |
代理机构 |
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