Pulse or digital communications – Repeaters – Testing
Patent
1991-10-10
1993-12-14
Kuntz, Curtis
Pulse or digital communications
Repeaters
Testing
375102, 379417, H03H 730, H03H 740
Patent
active
052710378
ABSTRACT:
Line equipment, preferably a line terminating device, in a communications system including transmitting and receiving circuits to which are connected transmitting lines and receiving lines includes at least one receiving circuit that is equipped with a circuit arrangement for compensating crosstalk. A single circuit arrangement effects the compensation of crosstalk between a plurality of transmitting lines and a receiving line. For compensation, a reference signal of the transmitted signal is branched off from each transmitting circuit and an adaptive filter simulates a compensation signal. The individual compensation signals are mixed into the received signals through the subtraction inputs of a subtraction circuit. Part of the output signal of the subtraction circuit is fed to the control signal inputs of the adaptive filters, the other part is processed further to become the received signal.
REFERENCES:
patent: 4606054 (1986-08-01), Amitay et al.
patent: 4649505 (1987-06-01), Zinser, Jr. et al.
patent: 4688245 (1987-08-01), Schenk
patent: 4757319 (1988-07-01), Lanki
patent: 5023620 (1991-06-01), Matsuura
patent: 5136612 (1992-08-01), Bi
Szechenyi, Kalman et al., "Integrated Full-Digital U-Interface Circuit for ISDN Subscriber Loops", IEEE Journal on Selected Areas in Communications, vol. SAC-4, No. 8, Nov. 1986, pp. 1337-1349.
Honig et al., "Multichannel Signal Processing for Data Communications in the Presence of Crosstalk," 8089 IEEE Transactions on Communications 38 (1990) Apr., No. 4 pp. 551-558.
ALCATEL N.V.
Kuntz Curtis
Webster Bryon E.
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