EP 1290791 A1 20030312 - DIGITAL INTERPOLATION FILTER
Title (en)
DIGITAL INTERPOLATION FILTER
Title (de)
DIGITALES INTERPOLATIONSFILTER
Title (fr)
FILTRE D'INTERPOLATION NUMERIQUE
Publication
Application
Priority
- DE 0101957 W 20010521
- DE 10029424 A 20000615
Abstract (en)
[origin: WO0197376A1] The invention relates to a digital comb filter, which comprises n filter stages, whereby each filter stage has a retaining member located at the input of the filter stage. Said retaining member doubles the sampling rate by outputting each input data value twice. Each filter stage has a filter structure, the formula H(z) a (1 + z<-1>)<k-1> being applied to the partial transmission function H(z) of said structure. In said formula, k represents the order of the filter device and z<-1> the z-transform of a delay at a sampling pulse. The inventive implementation of said filter does not require an error correction circuit.
IPC 1-7
IPC 8 full level
H03H 17/02 (2006.01); H03H 17/00 (2006.01); H03H 17/06 (2006.01)
CPC (source: EP US)
H03H 17/0251 (2013.01 - EP US); H03H 17/0657 (2013.01 - EP US)
Citation (search report)
See references of WO 0197376A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0197376 A1 20011220; DE 10029424 A1 20020103; DE 10029424 C2 20020418; EP 1290791 A1 20030312; JP 2004503976 A 20040205; US 2003103560 A1 20030605; US 7076512 B2 20060711
DOCDB simple family (application)
DE 0101957 W 20010521; DE 10029424 A 20000615; EP 01947161 A 20010521; JP 2002511467 A 20010521; US 32012602 A 20021216