Loudspeaker coupler
US4206831A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1978 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Apr 24, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/025
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electrically driven loudspeaker is coupled to the atmosphere, which is to carry sound to the human ear, through a hollow coupler the inlet end of which has a cross sectional area comparable to the effective area of the loudspeaker, said cross sectional area decreasing progressively from said inlet end to an outlet end of substantially smaller cross sectional area. In a specific embodiment of the invention, an exponential horn is formed within the confines of a loudspeaker cabinet enclosure, and the inlet end of the horn is coupled to the electrically driven loudspeaker by means of the hollow coupler also formed within the cabinet enclosure. The outlet end of the coupler has the same cross sectional area and shape as the inlet end of the horn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.