Electronic device with cover having internal protruding portions for dispersing of sound
US8571248B2 · kind B2 · utility
4Cited by
2References
18Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 14, 2011 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Nov 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/2803
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An exemplary electronic device includes a box, a speaker, and a micro structure. The box includes a shell and a cover disposed on the shell. The speaker is sandwiched between the shell and the cover. The micro structure includes a plurality of flat-bottomed protruding portions, a plurality of first pyramidal protruding portions, and a plurality of second pyramidal protruding portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.