EP 0656737 B1 19980121 - Hearing aid with cancellation of acoustic feedback
Title (en)
Hearing aid with cancellation of acoustic feedback
Title (de)
Hörhilfegerät mit Unterdrückung der akustischen Rückkopplung
Title (fr)
Prothèse auditive avec suppression du couplage acoustique
Publication
Application
Priority
- EP 94117510 A 19941107
- EP 93118186 A 19931110
Abstract (en)
[origin: EP0585976A2] In a hearing aid with a gain filter section, the acoustomechanical noise feedback is compensated for by means of a compensator (15). The signal connection at the compensator (15) and preferably also at the gain filter section (5) is in the frequency domain, for which purpose a differentiating unit (13), into which the compensator signal is injected, is followed by time-domain/frequency-domain transformation units (20, 28), or corresponding inverse transformation units (26, 24). <IMAGE>
IPC 1-7
IPC 8 full level
H04R 25/00 (2006.01)
CPC (source: EP US)
H04R 25/453 (2013.01 - EP US); H04R 25/505 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE DK ES FR GB GR IT LI NL SE
DOCDB simple family (publication)
EP 0585976 A2 19940309; EP 0585976 A3 19940601; AT E162679 T1 19980215; DE 59405093 D1 19980226; DK 0656737 T3 19980914; EP 0656737 A1 19950607; EP 0656737 B1 19980121; US 5661814 A 19970826
DOCDB simple family (application)
EP 93118186 A 19931110; AT 94117510 T 19941107; DE 59405093 T 19941107; DK 94117510 T 19941107; EP 94117510 A 19941107; US 33518094 A 19941107