Speaker, terminal, and speaker control method
US11388519B2 · kind B2 · utility
1Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2018 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Apr 3, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A speaker includes a front cover, a coil, a frame, a magnet, a magnetic diaphragm, and a voice coil. The coil is located on an inner side of the front cover, the magnetic diaphragm is located between the coil and the voice coil, a periphery of the magnetic diaphragm is adhered to one side of the frame, the magnet is located on the other side of the frame, and the one side and the other side of the frame are two opposite sides of the frame. The voice coil is configured to drive the magnetic diaphragm to vibrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.