Subwoofer with cascaded array of drivers arranged with staggered spacing
US7760899B1 · kind B1 · utility
23Cited by
11References
15Claims
0Family size
Inventor
Key dates
| Filing date | Feb 27, 2006 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | May 22, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/323
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A single folded, expanding horn loudspeaker reproduces low frequency audible sound at high power output levels. A compact enclosure houses a plurality of identical transducers, characterized by small vibrational surface areas. The throats for each transducer into the horn are acoustically differentially spaced from the mouth of the horn with the spacing between adjacent throats progressively increasing in the acoustic direction of the horn mouth from the throat origin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.