High output sub-woofer

Details High output sub-woofer High output sub-woofer

2011-05-31

2011-05-31

Ni, Suhan (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having acoustic wave modifying structure

C381S345000, C381S348000

Reexamination Certificate

active

07953239

ABSTRACT:
A speaker system with an enclosure having at least six sides. At least two active transducers are mounted inside the enclosure. Each active transducer is oriented to project from one of the sides. At least four passive radiators are mounted inside the enclosure. Each passive radiator is oriented to project from one of the sides. The number of active transducers and passive radiators equals the number of sides on the enclosure.

REFERENCES:
patent: 4939783 (1990-07-01), Dunning
patent: 5253301 (1993-10-01), Sakamoto et al.
patent: 6626263 (2003-09-01), Sahyoun
patent: 6658129 (2003-12-01), D'Hoogh
patent: 6704426 (2004-03-01), Croft, III
patent: 6782112 (2004-08-01), Geddes
patent: 7039212 (2006-05-01), Poling et al.
patent: 7133533 (2006-11-01), Chick et al.

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