Loudspeaker apparatus
US10123123B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 2015 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Nov 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus is provided that includes the following: 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, wherein an electrical signal is configured to travel between the signal port and the coil, and wherein 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.