Iad Gesellschaft Für Informatik, Automatisierung Und Datenverarbeitung Mbh

Broadband United Gmbh

Roman Tzschoppe

Johannes B Huber

Hermann Hampel

Axel Busboom

Robert Fischer

Ulrich Berold

Manfred Deinzer

Georg Herrmann

Johannes Huber

Axel Broll

Disclosed are devices and methods for identification and cancellation of interfering signals, especially far-end crosstalk (FEXT), in a communication system with at least two pairs of wires of a balanced line bundle. The devices include at least a cancellation circuit, which is connected downstream to dead time elements, an interference characteristic detection device and a cancellation control unit, which controls a setting of filter coefficients of an adaptive filter and the cancellation signal source. The adaptive filter is configured as a digital cancellation filter having filter coefficients separated in time by a first delay element having the delay time T, and having an adjustable additional delay time t, whereby the setting of the additional delay time &#x3c4; takes place together with the setting of filter coefficients.

Device and method for identification and cancellation of crosstalk

Growing community of inventors

Uttenreuth, Germany

Roman Tzschoppe