Hearing aid device incorporating signal processing techniques

H - Electricity – 04 – R

Patent

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H04R 25/00 (2006.01)

Patent

CA 2194583

A hearing compensation system (10) for the hearing impaired comprises an input transducer (12) for converting acoustical information at an input to electrical signals at an output, an output transducer (20) for converting electrical signals at an input to acoustical information at an output, a plurality of bandpass filters (16-1 to 16-n), each bandpass filter having an input connected to the output of said input transducer, a plurality of AGC circuits (18-1 to 18-n), each individual of AGC circuits associated with a different one of the bandpass filters and having an input connected to the output of its associated bandpass filter and an output connected to the input of the output transducer (20).

Un système de correction auditive (10) pour malentendants auditifs comprend un transducteur d'entrée (12) convertissant des informations acoustiques au niveau d'une entrée en signaux électriques au niveau d'une sortie, un transducteur de sortie (20) convertissant des signaux électriques au niveau d'une entrée en informations acoustiques au niveau d'une sortie, une pluralité de filtres passe-bande (16-1 à 16-n) possédant chacun une entrée raccordée à la sortie du transducteur d'entrée, une pluralité de circuits de commande automatique de gain (18-1 à 18-n), chacun d'eux étant associé à un filtre passe-bande différent et possédant une entrée raccordée à la sortie de son filtre passe-bande associé et une sortie raccordée à l'entrée du transducteur de sortie (20).

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