Microspeaker with inner resonance chamber
US8731223B2 · kind B2 · utility
3Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2012 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Dec 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a microspeaker with an inner resonance chamber, more particularly a microspeaker with an inner resonance chamber which improves quality of sound and enables slim and compact design of the microspeaker by blocking rearward sound generated at the rear side of the vibration plate to prevent interference of a rearward sound with a forward sound generated at the front side of a vibration plate and installing a chamber with a specific volume within the microspeaker to allow the rearward sound to cause resonance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.