Circuit with crosstalk elimination capability

Details Circuit with crosstalk elimination capability Circuit with crosstalk elimination capability

1980-01-29

1981-10-06

Robinson, Thomas A.

H04Q 350, H04Q 136

Patent

active

042937396

ABSTRACT:
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.

REFERENCES:
patent: 3720792 (1973-03-01), Resta
patent: 4053716 (1977-10-01), Enomoto
patent: 4057691 (1977-11-01), Goto et al.

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