Acoustic receivers with multiple diaphragms
US11272294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2020 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Dec 26, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/2803
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Sound-producing acoustic receivers are disclosed. The acoustic receiver includes a receiver housing with a first internal volume and a second internal volume, a first diaphragm separating the first internal volume into a first front volume and a first back volume such that the first front volume has a first sound outlet port, a second diaphragm separating the second internal volume into a second front volume and a second back volume such that the second front volume has a second sound outlet port, a motor disposed at least partially inside the housing such that the motor including an armature mechanically coupled to both the first diaphragm and the second diaphragm, an acoustic seal between the first front volume and the second back volume such that the acoustic seal accommodates the mechanical coupling of the armature to one of the first diaphragm or the second diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.