Omnidirectional speaker system
US4890689A · kind A · utility
19Cited by
11References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1987 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Dec 14, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/227
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An omnidirectional speaker unit includes a housing having a plurality of twelve identical sides each having a speaker mounted therein and equally spaced around and directed outward from a common point with all speakers connected to operate in unison to provide a spherical dispersal of sound. A preferred embodiment of the invention is the intersection of six equi-distant identical hyperboloids of two sheets creating horns that merge at unique saddle-like curves between adjacent horns of the enclosure with each speaker placed at the end of a long hyperboloid horn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.