Acoustic device with curved passive radiators
US9913012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2014 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Feb 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An acoustic device includes an acoustic assembly that defines a first acoustic volume. The acoustic assembly includes at least one passive radiator in acoustic communication with the first acoustic volume. A first electro-acoustic driver is configured to acoustically energize the first acoustic volume so as to drive the piston in oscillatory motion. The acoustic device also includes a housing within which the acoustic assembly is disposed. The housing has a curved inner surface. The passive radiator has a curvature which conforms to the curvature of the curved inner surface of the housing so as to reduce unused space between the at least one passive radiator and the curved inner surface of the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.