Low rise speaker assembly having a dual voice coil driver
US9154883B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 2011 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Aug 6, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A speaker assembly includes an enclosure having an acoustic chamber and an acoustic output opening and a speaker driver. The speaker driver includes a sound radiating surface and a first voice coil and a second voice coil positioned along opposite faces, respectively, of the sound radiating surface. The speaker driver further includes a first magnet assembly including an elongated gap in which part of the first voice coil is positioned to vibrate and a second magnet assembly having an elongated gap in which part of the second voice coil is positioned to vibrate. The first magnet assembly elongated gap is orientated lengthwise toward the acoustic chamber, and the second magnet assembly elongated gap is oriented lengthwise toward the acoustic output opening. Other embodiments are also described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.