Stereophonic sound reproduction apparatus using a plurality of loudspeakers in each channel
US5717766A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | May 30, 1995 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | May 30, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to sound reproduction apparatus comprising stereophonic amplifier means for amplifying left and right signals from any stereo emission source, and a plurality of loudspeakers disposed in two groups, namely one group on the left of a listening direction and another group on the right thereof, each group respectively receiving the amplified left signal and the amplified right signal. The number of said loudspeakers is even and not less than four, the loudspeakers being situated in pairs on axes that are vertical or substantially vertical, with all of the emission faces of said loudspeakers being placed on a surface of continuous curvature, and with the respective vertical and horizontal distances between said loudspeakers being determined as a function of the size of the loudspeakers and as a function of the listening volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.