Dual-diaphragm moving-coil audio transducer for hearing device
US11706570B2 · kind B2 · utility
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1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2021 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Sep 7, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to dual-diaphragm moving-coil audio transducers for hearing devices. The transducer includes a magnetic circuit including an inner portion located between first and second coils coupled to corresponding diaphragms supported by a housing. An outer portion of the magnetic circuit is adjacent outer portions of the first and second coils. The transducer emits sound when the first diaphragm moves in a first direction and the second diaphragm moves in a second direction, opposite the first direction, in response to an electrical audio signal applied to the first and second coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.