Speaker and MEMs actuator thereof
US10609491B1 · kind B1 · utility
1Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2019 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Mar 11, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/003
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A speaker includes a diaphragm and a MEMS actuator. The MEMS actuator includes a coupling member attached to the diaphragm and at least one closed cantilever ring that is surrounded around and connected to the coupling member by plural first bridge members, wherein the closed cantilever ring is configured to be electrically-biased to cause an axial movement of the coupling member and the diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.