Open audio device
US11653144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2021 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | May 5, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An open audio device 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, and a rear acoustic cavity that receives rear-side acoustic radiation. At least one sound-emitting opening is acoustically coupled to the front acoustic cavity or the second acoustic cavity. The open audio device also includes a removable accessory that includes an acoustic transmission line that is acoustically coupled to the at least one sound-emitting opening when the removable accessory is attached to the open audio device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.