Flat speaker driven by a single permanent magnet and one or more voice coils
US11310604B2 · kind B2 · utility
0Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2021 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Jan 6, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2209/041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments are disclosed of a flat speaker containing a single permanent magnet, a yoke opposite the single permanent magnet, and one or more voice coil plates located between the single permanent magnet and the yoke. The one or more voice coil plates each comprise a bobbin and a coil arranged on one or both sides of the bobbin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.