Dual compression driver with annular exit
US12432490B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Jun 10, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A dual compression driver includes first driver assembly and a second driver assembly each including a motor assembly disposed about a central axis, an annular diaphragm coaxial to and operably connected to each motor assembly, and a phasing plug coaxial to each diaphragm. Each phasing plug includes an input side oriented toward the diaphragm, an output side oriented away from the diaphragm, and a plurality of apertures extending therethrough. A hollow extension duct has a bottom end mounted to the phasing plug of the first driver assembly, wherein an inner surface of the extension duct and an outer surface of the second driver assembly form an annular pathway terminating at an annular exit of the dual compression driver. Acoustic signals from the first and second driver assemblies merge between the output sides of the phasing plugs and radiate radially outward to the annular pathway and through the annular exit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.