Speaker with grained zeolite material in deep-drawn foil resonance volume
US9635455B2 · kind B2 · utility
9Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2013 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Jul 24, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/029
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio system that comprises an electro-acoustic transducer mounted onto a housing that forms a resonance volume which is at least partially filled with sound absorbing material, wherein the housing is realized with a deep-drawn foil at least partially filled with grains of the sound absorbing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.