Linear loudspeaker
US6285773A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 13, 2000 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Apr 13, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention concerns a loudspeaker having an elongate parallelepiped hollow body, whereof one longitudinal surface is made up of a stretched elongate rectangular planar diaphragm. The diaphragm is suspended by its edges to the body adjacent side surfaces, and is integral with an elongate rigid inner part extending in the body longitudinal direction, and bearing a mobile electromagnetic coil, parallel to the diaphragm. The coil is arranged between two fixed magnets located along the body two longitudinal side surfaces which form, with the base of said body, polar parts. Said loudspeaker is useful as component of an active anti-noise system, associated with a double glazing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.