EP 0345345 B1 19911009 - ELECTROACOUSTIC TRANSDUCER
Title (en)
ELECTROACOUSTIC TRANSDUCER
Publication
Application
Priority
DE 3741180 A 19871204
Abstract (en)
[origin: WO8905559A1] An electroacoustic transducer, for example a hearing aid or a high-frequency signal receiver, is completely accommodated in an operatively produced cavity in a bone in the vicinity of the ear. The appliance is therefore completely invisible. Preferably a chargeable accumulator is implanted at the same time as the electroacoustic transducer. The electroacoustic transducer can have a correction piece through which the loudness or other parameters of the transducer can be adjusted and the power supply source can be charged.
IPC 1-7
IPC 8 full level
A61F 2/02 (2006.01); A61F 11/04 (2006.01); H04R 25/00 (2006.01); H04R 25/02 (2006.01)
CPC (source: EP US)
H04R 25/558 (2013.01 - EP US); H04R 25/60 (2013.01 - EP US); H04R 25/603 (2019.04 - EP US); H04R 25/606 (2013.01 - EP); H04R 25/607 (2019.04 - EP US); H04R 2225/57 (2019.04 - EP US); H04R 2225/61 (2013.01 - EP US); H04R 2225/67 (2013.01 - EP)
Citation (examination)
GB 2188909 A 19871014 - JEWELCOR INC
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
WO 8905559 A1 19890615; DE 3741180 A1 19890706; DE 3744745 A1 19890615; DE 3865431 D1 19911114; EP 0345345 A1 19891213; EP 0345345 B1 19911009
DOCDB simple family (application)
EP 8801094 W 19881201; DE 3741180 A 19871204; DE 3744745 A 19871204; DE 3865431 T 19881201; EP 89901965 A 19881201