Acoustic membrane for a loudspeaker and corresponding loudspeaker
US10820111B2 · kind B2 · utility
0Cited by
3References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 15, 2016 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | May 18, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R7/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A circular acoustic membrane having an upper surface and an opposite lower surface, said membrane being intended to be coupled, at the lower surface thereof, to a mobile winding via a support. The membrane has an annular fold concentrically delimiting, in the membrane, a circular central portion and an annular peripheral portion. In addition, the central portion has a concavity turned towards the upper surface and the internal edge of the fold is carried by the lower surface and comprises an attachment surface intended for the coupling of said support of the coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.