(19)
(11) EP 0 836 364 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.03.2003 Bulletin 2003/12

(43) Date of publication A2:
15.04.1998 Bulletin 1998/16

(21) Application number: 97116809.1

(22) Date of filing: 26.09.1997
(51) International Patent Classification (IPC)7: H04R 25/02
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV RO SI

(30) Priority: 11.10.1996 AT 179696

(71) Applicant: ReSound-Viennatone Hörtechnologie AG
1160 Wien (AT)

(72) Inventor:
  • Ribic, Zlatan
    1230 Wien (AT)

(74) Representative: Neugebauer, Jürgen, Dipl.-Phys. et al
Schroeter Lehmann Fischer & Neugebauer Wolfratshauser Strasse 145
81479 München
81479 München (DE)

   


(54) Hearing aid


(57) A hearing aid with a microphone, an amplifier arrangement connected to the microphone and a sound generator energized by the amplifier and having an output connected to a sound guide structure (10, 10', 10'') which is directed toward an ear, or respectively, an eardrum of a user, wherein between the auditory canal (6) and the sound guide structure (10' ,10', 10''), a gap remains permitting passage of ambient sounds. In order to prevent fringe haul-generating feedback coupling in spite of the small and compact dimensions of the hearing aid, the sound guide structure (10, 10' 10'') includes a plurality of air containing channels of different lengths having staggered sound discharge openings.






Search report