Global Patent Index - EP 1297627 A1

EP 1297627 A1 20030402 - INTERPOLATION FILTER AND METHOD FOR DIGITALLY INTERPOLATING A DIGITAL SIGNAL

Title (en)

INTERPOLATION FILTER AND METHOD FOR DIGITALLY INTERPOLATING A DIGITAL SIGNAL

Title (de)

INTERPOLATIONSFILTER UND VERFAHREN ZUR DIGITALEN INTERPOLATION EINES DIGITALEN SIGNALS

Title (fr)

FILTRE D'INTERPOLATION ET PROCEDE D'INTERPOLATION NUMERIQUE D'UN SIGNAL NUMERIQUE

Publication

EP 1297627 A1 20030402 (DE)

Application

EP 01969330 A 20010702

Priority

  • DE 10032520 A 20000705
  • EP 0107543 W 20010702

Abstract (en)

[origin: WO0203550A1] The invention relates to an interpolation filter and to a method for filtering a digital input signal. The interpolation filter has an amplitude characteristic with a low-pass-shaped damping curve in the useful signal frequency range of the digital input signal. The group delay time of the interpolation filter is essentially constant in the useful signal frequency range and can be adjusted within a clock period of the equidistant digital signal.

IPC 1-7

H03H 17/06

IPC 8 full level

H03H 17/02 (2006.01); H03H 17/06 (2006.01)

CPC (source: EP US)

H03H 17/0294 (2013.01 - EP US); H03H 17/0664 (2013.01 - EP US)

Citation (search report)

See references of WO 0203550A1

Designated contracting state (EPC)

DE GB

DOCDB simple family (publication)

WO 0203550 A1 20020110; DE 10032520 A1 20020124; EP 1297627 A1 20030402; US 2002184278 A1 20021205; US 7225213 B2 20070529

DOCDB simple family (application)

EP 0107543 W 20010702; DE 10032520 A 20000705; EP 01969330 A 20010702; US 7020302 A 20020501