Hemispherical speaker system

Details Hemispherical speaker system Hemispherical speaker system

1989-08-24

1991-06-18

Ng, Jin F.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 89, 381 90, 381205, 181148, H04R 102, H04R 2500, H05K 500

Patent

active

050254731

ABSTRACT:
An arrangement of divergently mounted acoustic transducers in a hemispherical air tight enclosure, the enclosure being sized with regard to the loading requirements of the acoustic transducers to produce a small size speaker system having an omnidirectional sound radiation pattern and a flat frequency response without the need of a crossover network. The hemispherical enclosure being comprised of six flat equal sided pentagonal plates, five triangular shaped flat gussets and a flat base plate all of which when assembled forms a half dodecahedron polyhedron shaped enclosure with a closed base, with the base serving as the enclosure mounting surface.

REFERENCES:
patent: 4179585 (1979-12-01), Herrenschmidt
patent: 4231446 (1980-11-01), Weiss et al.
patent: 4673057 (1987-06-01), Glassco
patent: 4837826 (1989-06-01), Schupbach

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