The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2015
Filed:
Jan. 05, 2011
Georg Herrmann, Ebermannstadt, DE;
Hermann Hampel, Grosshabersdorf, DE;
Ulrich Berold, Nuremberg, DE;
Manfred Deinzer, Lauf, DE;
Roman Tzschoppe, Uttenreuth, DE;
Johannes B. Huber, Langensendelbach, DE;
Georg Herrmann, Ebermannstadt, DE;
Hermann Hampel, Grosshabersdorf, DE;
Ulrich Berold, Nuremberg, DE;
Manfred Deinzer, Lauf, DE;
Roman Tzschoppe, Uttenreuth, DE;
Johannes B. Huber, Langensendelbach, DE;
Broadband United GmbH, Bielefeld, DE;
iAd Gesellschaft für Informatik, Automatisierung und Datenverarbeitung mbH, Groβhabersdorf, DE;
Abstract
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 τ takes place together with the setting of filter coefficients.