Housing of electronic device and speaker
US9693142B2 · kind B2 · utility
0Cited by
2References
18Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 18, 2015 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | May 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A speaker includes a shell and a vibration device. The vibration device is fixed on the shell. The shell defines a closed space. The closed space is filled with gas. The vibration device can drive the shell to vibrate to produce sound. A speaker is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.