Acoustic transducer
US11697134B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 7, 2017 |
| Grant date | Jul 11, 2023 |
| Priority date | — |
| Expiry date | Jan 31, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B2201/74
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An acoustic transducer (30), comprising: a support structure (36); an active assembly comprising a base plate (32) supported by the support structure (36) and a piezoelectric body (34) supported by the base plate (32); and a passive vibrator (38) supported by the support structure (36) and coupled via the support structure (36) to the active assembly (32, 34) so that vibration of the active assembly (32, 34) drives the passive vibrator (38). The active assembly (32, 34) and the passive vibrator (38) have the same resonant frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.