Acoustic passive radiator rocking mode reducing
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United States of America Patent
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Aug 4, 2009
Grant Date -
Jul 21, 2005
app pub date -
Jan 15, 2004
filing date -
Jan 15, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
An acoustic passive radiator that controls “rocking mode” vibration. An acoustic passive radiator includes a diaphragm for radiating acoustic energy. The diaphragm has a perimeter portion and a central portion. The perimeter portion is thicker than the central portion. The passive radiator further includes a passive radiator suspension. The suspension includes a skin element encasing the diaphragm. The skin element comprises a surround for physically coupling the passive radiator to an acoustic enclosure, pneumatically sealing the diaphragm and the enclosure. The surround has a non-uniform width. The passive radiator a non-pneumatically sealing, non-surround, non-spider suspension element. The non-surround suspension element and the surround coact to control the motion of the diaphragm and to support the weight of the diaphragm.
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