EP 0585976 A3 19940601 - HEARING AID WITH CANCELLATION OF ACOUSTIC FEEDBACK
Title (en)
HEARING AID WITH CANCELLATION OF ACOUSTIC FEEDBACK
Publication
Application
Priority
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)
Citation (search report)
- [A] EP 0252205 A2 19880113 - ANTIN MARK [US]
- [AD] S. M. KUO UND S. VOEPEL: "INTEGRATED FREQUENCY-DOMAIN DIGITAL HEARING AID WITH THE LAPPED TRANSFORM", ELECTRONICS LETTERS., vol. 28, no. 23, 5 November 1992 (1992-11-05), ENAGE GB, pages 2117 - 2118, XP000315938
- [AD] JAMES M. KATES: "FEEDBACK CANCELLATION IN HEARING AIDS: RESULTS FROM A COMPUTER SIMULATION", IEEE TRANSACTIONS ON SIGNAL PROCESSING, vol. 39, no. 3, March 1991 (1991-03-01), NEW YORK US, pages 553 - 562, XP000224129
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT 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