Apparatus for acoustic loading of a diaphragm
US7639830B2 · kind B2 · utility
7Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2006 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Jul 19, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus acoustic loading of a diaphragm is disclosed. The apparatus comprises a rear face having a shape corresponding to a shape of a compression side of the diaphragm, a front face opposite to the rear face along an axis of symmetry, and a plurality of voids formed between the rear face and the front face. The plurality of voids are arranged so that their intersection with rear face forms a plurality of inlets, the plurality of inlets defining a higher compression ratio in the proximity of a voice coil compared to a compression ratio defined in at least a portion of the remaining area of the diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.