Audio system surround acoustic driver powering
US8952824B2 · kind B2 · utility
2Cited by
4References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2012 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Oct 28, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio system including wireless speakers. The wireless speakers include rechargeable batteries and are interchangeable so that two loudspeakers may be recharged while two loudspeakers are operating wirelessly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.