Vented acoustic enclosures and related systems
US10063962B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2016 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Jul 4, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An enclosure for a speaker transducer can have a front housing member and a rear housing member. Some enclosures position the speaker transducer between the front housing member and the rear housing member, and spaced apart from the rear housing member to define a rear chamber positioned between the speaker transducer and the rear housing member. The rear housing member can define a longitudinal axis. A first waveguide member and a second waveguide member can be longitudinally spaced apart from each other to define an acoustic waveguide therebetween oriented transversely relative to the longitudinal axis. A port can acoustically couple the acoustic waveguide with the rear chamber. A cross-sectional area of the waveguide can expand radially outward of the port. And, the acoustic waveguide can extend circumferentially around the longitudinal axis more than 90-degrees. Some embodiments include a speaker transducer and are suitable as a headphone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.