Speaker
US8290201B2 · kind B2 · utility
4Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2010 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Feb 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a speaker in which a damper is effectively added without impairing the thinness of the speaker, and which, although the speaker is thin and small, exhibits high withstand input and high output power performances. A damper (14) is disposed between the lower end of a voice coil bobbin (12) and a magnet (3) of a magnetic circuit (5), and supports a vibration system (13) in a manner that the system is vibratable with respect to the magnet (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.