Open audio device
US11122351B2 · kind B2 · utility
1Cited by
1References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 28, 2019 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Aug 28, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/09
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An open audio device that includes an acoustic radiator that emits front-side acoustic radiation from its front side and emits rear-side acoustic radiation from its rear side, a front acoustic cavity that receives front-side acoustic radiation, a front transmission line that is acoustically coupled to the front acoustic cavity and comprises a first front sound-emitting opening, and a rear acoustic cavity that receives rear-side acoustic radiation and comprises at least a first rear sound-emitting opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.