Hearing aids, signal supplying apparatus, systems for...

Details Hearing aids, signal supplying apparatus, systems for... Hearing aids, signal supplying apparatus, systems for...

H - Electricity

04

R

349/26, 349/28

H04R 25/00 (2006.01) A61B 5/12 (2006.01) H04R 25/02 (2006.01)

Patent

CA 1240029

Abstract A hearing aid including a microphone for generating an electrical output from sounds external to a user of the hearing aid, an electrically driven receiver for emitting sound into the ear of the user of the hearing aid, and cir- cuitry for driving the receiver. The circuitry drives the receiver in a self-generating mode activated by a first set of signals supplied externally of the hearing aid to cause the receiver to emit sound having at least one parameter control- led by the first set of externally supplied signals and then drives the receiver in a filtering mode, activated by a second set of signals supplied externally of the hearing aid, with the output of the external microphone filtered according to filter parameters established by the second set of the ex- ternally supplied signals. Other forms of the hearing aid, apparatus for supplying the sets of signals to the hearing aid in a total system, and methods of operation are also described.

488699

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