Acoustics – Plural diaphragm sound sources
Patent
1991-12-10
1993-06-01
Gellner, Michael L.
Acoustics
Plural diaphragm sound sources
181155, 181156, H05K 500
Patent
active
052162095
ABSTRACT:
A loudspeaker system 10 and a method for disbursing sound waves are disclosed. The loudspeaker system 10 has a reflector screen 12 which is provided with a concave reflective surface 14. The reflective surface 14 is a complex curve having a central axis 16. A first speaker 18 is positioned in front of the reflective surface 14 a longitudinal distance along the central axis 16 less than a pre-determined distance x. The first speaker 18 projects sound waves above a pre-determined frequency toward the reflective surface 14 to be reflected and disbursed into a listening area. A second speaker 20 is positioned to project sound waves below the pre-determined frequency into the listening area generally. A frame 24 supports the first and second speakers 18,20. A method for disbursing sound waves is also disclosed including the steps of providing a reflector screen 12 having a concave reflective surface 14 and positioning first and second speakers 18,20. The method further includes the steps of projecting sound waves from the first and second speakers 18,20 and reflecting sound waves from the first speaker 18 off of the reflective surface 14 to be disbursed into a listening area.
REFERENCES:
patent: 4357490 (1982-11-01), Dickey
patent: 4850452 (1989-07-01), Wolcott
patent: 4907671 (1990-03-01), Wiley
Dang Khanh
Gellner Michael L.
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