Apparatus with surface to be displaced
US11234080B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 2020 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Mar 22, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a surface arranged to be mechanically displaced, a first magnet coupled with the surface, at least one supporting member for supporting the surface, a base comprising a second magnet, wherein the second magnet is arranged, at least partially, to face the first magnet, a coil coupled with the second magnet, and a signal port electrically coupled with the coil. An electrical signal is configured to travel between the signal port and the coil, and the electrical signal in the coil is proportional to mechanic displacement of the surface when a force equilibrium state of the surface is broken either by the electrical signal in the coil or the mechanic displacement of the surface from a position of the force equilibrium state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.