Phase plug and acoustic lens for direct radiating loudspeaker
US8181736B2 · kind B2 · utility
25Cited by
89References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2009 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Dec 14, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/345
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A phase plugs or acoustic lens improves the directional audio performance of a loudspeaker. Application of the improved directional audio performance to a sound system in a listening area may improve the performance of the audio system. Configuration of the acoustic lens or phase plug may include both symmetrical and asymmetrical features to provide an improved frequency response and directivity. The improved loudspeaker may provide improved an improved listing location, for example, in a vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.