公开(公告)号：DE102004047704A1

公开(公告)日：2006-04-13

申请号：DE102004047704

申请日：2004-09-30

Applicant: INFINEON TECHNOLOGIES AG

Inventor： STRAEUSSNIGG DIETMAR ,  JENKNER CHRISTIAN ,  WALCHER KARLHEINZ

IPC: H04Q1/45

Abstract: A signalling tone signal processing procedure determines spectral components from the signal (10) recorded during a time window and processes (10) them by multiplication (12) of each by a window length dependent compensation factor (c1, c2) to create a compensation value subtracted (14, 15) from the other to give an output signal (2) with the time window influence minimised. Independent claims are included for equipment using the procedure.

公开(公告)号：DE10349739A1

公开(公告)日：2005-08-04

申请号：DE10349739

申请日：2003-10-23

Applicant: INFINEON TECHNOLOGIES AG

Inventor： PAOLI GERHARD ,  STRAEUSSNIGG DIETMAR ,  NOESSING GERHARD ,  HOHL JOHANNES

IPC: H03H17/02 ,  H03H17/06 ,  H04L25/02 ,  H04L27/00 ,  H04L27/04 ,  H04M11/06

Abstract: A method and a device for interpolating or decimating a signal is provided, the signal being processed by a plurality of signal processing means connected in series, which at least comprise means for increasing or reducing a clock rate of the signal and filtering means. To achieve adaptation to different operating modes or transmission standards, individual portions of the signal processing means connected in series can be bridged by bypasses. In addition, filtering parameters of the filtering means can be varied and factors, by which a clock rate of the signal is increased or reduced, can be changed.

公开(公告)号：DE50010530D1

公开(公告)日：2005-07-14

申请号：DE50010530

申请日：2000-11-17

Applicant: INFINEON TECHNOLOGIES AG

Inventor： STRAEUSSNIGG DIETMAR

IPC: H04B3/23

Abstract: Method and device for echo compensation with a common-frequency transmission method in duplex mode over a two-wire line, an echo compensation filter which has adjustable coefficients and is embodied as an FIR filter being arranged between the transmitter output and receiver input and an IIR filter with adjustable coefficients, whose coefficients can be determined as a function of the coefficients of the FIR filter, being additionally provided.