Loudspeaker system having wide-directional characteristics

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers

Reexamination Certificate

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Details

C381S335000, C381S336000, C381S059000, C181S144000

Reexamination Certificate

active

06961438

ABSTRACT:
A loudspeaker system having wide-directional characteristics includes a loudspeaker body having a polyhedron shape, preferably of dodecahedron and a plurality of speakers disposed on outer surfaces, respectively, of the polyhedron-shaped loudspeaker body in a manner that axial lines of adjacent two speakers intersect each other at a predetermined angle. A correction filter is further operatively connected to the speakers, and the correction filter provides a correction value set so as to obtain a flatness of sound pressures at various portions around the loudspeaker body.

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patent: 5812685 (1998-09-01), Fujita et al.
patent: 5889876 (1999-03-01), Billings
patent: 59-31105 (1984-09-01), None

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