Actuator for distributed mode loudspeaker with extended damper and systems including the same
US10631072B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Jun 25, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system includes a panel extending in a plane, an actuator attached to a surface of the panel, and an electronic control module to activate the actuator to cause vibration of the panel. The actuator includes: a plate to create a force to cause vibration of the panel to generate sound waves, having a width, WT, at a first edge; a stub extending from the first edge of the plate, having a width at a region of connection to the plate that is less than WT, the stub being attached to the surface of the panel to transfer the force received from the plate to the panel and cause the panel to vibrate; and a damper supported by a surface of the plate facing the panel coupling the plate to the panel, the damper having a having a width greater than WS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.