Damping filter for a hearing device
US11653154B2 · kind B2 · utility
5Cited by
1References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2021 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Jul 13, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R25/48
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a hearing device having a microphone, where most of the microphone is shielded by an outer shielding of the hearing device. An inlet in the outer shielding allows sound from outside the hearing aid to travel to the microphone to be picked up by it. However, the combination of the microphone and the inlet results in the microphone becoming more sensitive at some audible frequencies. A damping filter positioned in connection with the inlet acts to counter the acoustic effect of the inlet by damping sound in the audible frequency range, where the microphone has increased sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.