Electrical audio signal processing systems and devices – Having non-electrical feature – Loudspeakers driven in given phase relationship
Reexamination Certificate
2006-01-10
2006-01-10
Martin, David (Department: 2837)
Electrical audio signal processing systems and devices
Having non-electrical feature
Loudspeakers driven in given phase relationship
C381S182000, C381S162000, C381S186000, C181S145000, C181S163000, C181S209000
Reexamination Certificate
active
06985593
ABSTRACT:
A vibration reducing apparatus comprising, a baffle subject to vibration, a first electroacoustical transducer characterized by a first mass seated in the baffle, a second electromechanical transducer mechanically connected to said first transducer or said baffle in the vicinity of the periphery of the first transducer. The rear sides of the diaphragms of the first and the second transducer are not connected to the listening area. The first transducer and the second transducer are constructed and arranged to receive a common electrical signal so that the movable element in the first transducer and the movable element in the second transducer move in phase opposition in response to the common electrical signal to significantly reduce the vibrating force imparted to the baffle.
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http://www.linkwitlab.com/woofer.htm, (Aug. 11, 2003).
Bose Amar G.
Greenberger Hal P.
Nichols George
Bose Corporation
Colon Santana Eduardo
Fish & Richardson P.C.
Martin David
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