Global patent index - EP 1080607 A1

EP 1080607 A1 2001-03-07 - BAND STOP FILTER

Title (en)

BAND STOP FILTER

Title (de)

BANDSPERFILTER

Title (fr)

FILTRE A ELIMINATION DE BANDE

Publication

EP 1080607 A1 (EN)

Application

EP 00909316 A

Priority

  • EP 00909316 A
  • EP 0001907 W
  • EP 99200907 A

Abstract (en)

[origin: WO0057673A1] Bass audio signals can give an annoyance of neighbors (non-voluntary listener) of the listener (voluntary listener). To overcome this band block filters are known, but by blocking the audio signals in the frequency band the perception for the listener is less good. The invention overcomes this problem by combining enhancing means to obtain the so-called ultra bass, with the blocking filter.

IPC 1-7 (main, further and additional classification)

H04S 1/00

IPC 8 full level (invention and additional information)

H04R 3/04 (2006.01); H04R 3/00 (2006.01); H04S 1/00 (2006.01)

CPC (invention and additional information)

H04R 3/04 (2013.01); H04R 2430/03 (2013.01)

Citation (search report)

See references of WO 0057673A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 0057673 A1 20000928; CN 1296722 A 20010523; EP 1080607 A1 20010307; JP 2002540697 A 20021126

INPADOC legal status

2005-04-20 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Effective date: 20050228

2004-05-12 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Ref Legal Event Code: RBV

- Designated State(s): DE FR GB

2001-05-23 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20010328

2001-03-07 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE