Integrated MEMS micro-speaker device and method
US11930321B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2022 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Jun 4, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/003
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a micro-speaker device. The device has a movable diaphragm device comprising a thickness of material which has a first surface and a second surface opposite of the first surface. In an example, the device has a shaft device having a first end and a second end, where the first end coupled to the second surface. In an example, the device has an actuator device coupled to the second end and configured to drive the shaft device in a piston action to pull and push the movable diaphragm. The device has a housing enclosing the movable diaphragm device, the shaft device, and the actuator device. The device has a vented enclosure opposite of the movable diaphragm to allow air to move in and out of the one or more vent openings to generate a sound pressure signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.