Acoustic transducer with vibration damping
US10194245B1 · kind B1 · utility
1Cited by
17References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 28, 2017 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Jul 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2307/207
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Circumferential mode vibrations, in a diaphragm of an acoustic transducer, are damped by defining at least one elongated opening extending radially along a portion of a length from the central area to the outer perimeter being covered by a material having higher damping properties than the material of the cone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.