发明名称 |
Circuit with crosstalk elimination capability |
摘要 |
A switching network has a group of incoming lines respectively connected to the terminal equipments of a plurality of subscriber stations. A group of outgoing lines are respectively connected to a plurality of trunk circuits. A plurality of crosspoints are formed between the incoming lines and the outgoing lines. Crosstalk is eliminated between mutually adjacent incoming lines or between mutually adjacent outgoing lines, by serially connecting a series circuit between the lines where crosstalk might otherwise occur. The serial circuit includes a phase inverter circuit and an impedance element having an impedance value which is sufficiently close to that of the impedance which is likely to cause crosstalk between these lines.
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申请公布号 |
US4293739(A) |
申请公布日期 |
1981.10.06 |
申请号 |
US19800116497 |
申请日期 |
1980.01.29 |
申请人 |
NIPPON ELECTRIC CO., LTD. |
发明人 |
IIJIMA, YASUO |
分类号 |
H04Q3/52;H04Q3/64;(IPC1-7):H04Q3/50;H04Q1/36 |
主分类号 |
H04Q3/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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