Patent · US Expired

Circuit arrangement for the analogue suppression of echoes

US7151828B2 · kind B2 · utility

1Cited by

4References

35Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Thomas Blon · Munich, DE
Thomas Eichler · Munich, DE
Martin Gröpl · Sonthofen, DE
Peter Laaser · Munich, DE

Key dates

Filing date	Feb 16, 2001
Grant date	Dec 19, 2006
Priority date	—
Expiry date	Sep 21, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH04B3/23
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A circuit arrangement for the analogue suppression of echoes, as in particular can be used in a hybrid-circuit for DSL-transmission systems, comprises a replica (8) for emulating the behaviour of the transmission line (17). In addition, a circuit (3, 4) for emulating the behaviour of the transmitter (13) is provided, which comprises at least one lowpass (3, 4). Furthermore, a replica (9, 10) for emulating the behaviour of bridge taps (14) can also be provided, which comprises at least one bandpass (9, 10). Additionally, a replica (19) for emulating the behaviour of the line driver (1) can also be provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.