Piezoelectric speaker
US10924866B2 · kind B2 · utility
1Cited by
8References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2019 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Feb 27, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus including a first member; a first array of flexible actuators connected to the first member, where each of the flexible actuators includes a piezoelectric member and an extension on the piezoelectric member; and a first flexible membrane connected to the first array of flexible actuators. Each of the piezoelectric members is configured to be activated to move their respective extensions. Each of the extensions, when moved by their respective piezoelectric members, is configured to move the first flexible membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.