Bass reflex type speaker device
US7870928B1 · kind B1 · utility
4Cited by
5References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 16, 2009 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Oct 16, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/2815
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A bass reflex type speaker is disclosed. The bass reflex type speaker includes an enclosure, two speakers, and a bass reflex tube. The enclosure includes a main portion and two protruding portions protruding from the main portion. The main portion defines a sound cavity therein. The protruding portion defines a sound path therein communicating with the sound cavity. The two speakers are connected to the corresponding protruding portion to close the sound path. One end of the bass reflex tube is fixed in the enclosure, and the other end of the bass reflex tube extends out of the enclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.