公开(公告)号：AU2001260173A1

公开(公告)日：2002-10-15

申请号：AU2001260173

申请日：2001-03-30

Applicant: INFINEON TECHNOLOGIES AG

Inventor： WIESBAUER ANDREAS ,  CLARA MARTIN ,  POTSCHER THOMAS ,  WEINBERGER HUBERT ,  HAUPTMANN JORG ,  MAGESACHER THOMAS

IPC: H03M1/00 ,  H03M1/20 ,  H03M1/66 ,  H03M3/00 ,  H04B14/04 ,  H04B14/06

Abstract: The invention creates a method and a device for digitally transmitting analog signals, in which oversampling is performed in analog/digital and digital/analog converters. In this arrangement, a digital/analog conversion is performed which, in particular, is suitable for VDSL systems. A transmitted digital transmission signal (110) is supplied to a mixing unit (201) and in the mixing unit (201), a receive noise signal (211) applied to a receive noise source terminal (209) is superimposed on the digital transmission signal (110). An interpolation filter unit (203), in combination with a subsequent noise shaping device (205), provides an increase in the frequency bandwidth, resulting in suitable oversampling.