A hearing aid comprises a microphone on a proximal side of a device housing and a loudspeaker which via a transmission channel is in open communication with a sound- emitting opening of the device. A sound processing device serv es to generate sound received by the microphone to the loudspeaker in amplified form. The device housing is provided on a distal side with an optionally sealed battery chamber for receiving a battery therein. The transmission channel is at least almost wholly separated from the microphone acoustically in order to prevent acoustic feedback. The battery chamber comprises ventilation means for the purpose of increasing the lifespan of the battery.
申请公布号
CA2633120(A1)
申请公布日期
2007.06.21
申请号
CA20062633120
申请日期
2006.12.12
申请人
EXSILENT RESEARCH B.V.
发明人
KAAL, MARCUS JOHANNES ALOYSIUS;HAVENITH, MICHEL MARTIN MARIE;PANDER, AELDRIK